CONTENTS SECTION 1 SPECIFICATIONS SECTION 2 INSIDE VIEWS SECTION 3 DISASSEMBLY INSTRUCTION SECTION 4 CIRCUIT DESCRIPITON

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3 CONTENTS SECTION SPECIFICATIONS SECTION INSIDE VIEWS SECTION DISASSEMBLY INSTRUCTION SECTION 4 CIRCUIT DESCRIPITON 4- RECEIVER CIRCUITS TRANSMITTER CIRCUITS FREQUEY SYNTHESIZER CIRCUITS CPU PORT ALLOCATION VOLTAGE DIAGRAMS SECTION ADJUSTMENT PROCEDURES - PREPARATION TRANSMIT LIFIER ADJUSTMENT FREQUEY ADJUSTMENT DEVIATION ADJUSTMENTS RECEIVE ADJUSTMENTS FREQUEY ADJUSTMENT SECTION PARTS LIST SECTION 7 MECHANICAL PARTS SECTION 8 BOARD LAYOUTS SECTION 9 BLOCK DIAGRAM SECTION 0 VOLTAGE DIAGRAM

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5 SECTION INSIDE VIEWS LOGIC UNIT CPU (IC: HD4F9) CPU CLOCK (X: CR-84) ANALOG ITCH (IC0: CD40) RS- DRIVER (IC: MAX) EEPROM (IC: 4LC) CPUV REGULATOR (IC00: R0H0) AF PWR (IC400: NJM070) DATA I/O INVERTER (IC: TC7W04FU) AF ITCH (IC0: TC7W) SHIFT REGISTER (IC: CD4094) MODEM (IC0: CMX89) AF FILTER/IDC (IC0: LMV4) AF BUFFER (IC04: NJM) LINER CODEC (IC0: AD7) AF PWR REGULATOR (Q400: SB0) DC-DC CONVERTER (IC0: XC7APR) DC ITCH (Q00: HAT04R) ITCHING REGULATOR (IC0: XC90C0) DSP CODEC (IC0: AMBE-00) -

6 MAIN UNIT (TOP VIEW) (BOTTOM VIEW) ND IF FILTER (A BAND) (FI00: LTWC40E) (B-BAND) DISCRIMINATOR (X00: JTBM40) AF FILTER (IC0: NJM904) AF FILTER (IC0: NJM904) IF IC (A BAND) (IC00: TAFNG) TONE FILTER (IC0: LM904) (B BAND) DISCRIMINATOR (X00: JTBM40) TONE SELECTOR (IC70: CD40) (B BAND) ND IF FILTER (FI00: LTWC40E) (B BAND) ND IF FILTER (FI0: LTWC40E) RX VCOs (B BAND) SHIFT REGISTER (IC70: CD4094) SHIFT REGISTER (IC70: CD4094) IF IC (A BAND) (IC00: TAFNG) (B BAND) st IF FILTER (FI0: FL-) D/A CONVERTER (IC00: M4FP) UNIT (TOP VIEW) (BOTTOM VIEW) D/A CONVERTER (IC9: M) D/A CONVERTER (IC90: M) VCO UNIT (Under the cover) HEAT SINK for TX POWER (MP00: 888 PA HEATSINK) TX POWER TX DRIVE (Q00: SK47) (Q0: SK47) APC CONTROLLER DC ITCH (Q000: HAT0) (IC0: NJM404) -

7 SECTION DISASSEMBLY INSTRUCTION. Removing the front panel q Unscrew screws from the CHASSIS. w Disconnect the flat cable between MAIN UNIT and FRONT assembly, and remove the FRONT assembly from the CHASSIS.. Removing the FRONT UNIT q Unscrew 8 screws from the FRONT UNIT. w Unsolder points to remove the speaker leads, then remove the FRONT UNIT from the front panel. CHASSIS Unsolder points FRONT UNIT FRONT assy Flat cable Speaker leads Front panel. Removing outer parts q Remove the dial knobs. w Remove the rubber cap, and unscrew the ANT nut. e Unscrew the side screws, and remove the side panel. Dial knobs Side panel Rubber cap ANT nut Side screws - (Contiued to next page)

8 4. Removing MAIN UNIT q Unscrew screws from the MAIN UNIT. w Unsolder points at the control dial, and remove the MAIN UNIT.. Removing UNIT q Unsolder 4 points at the contact pins. w Unsolder point at the bottom of ANT connector. MAIN UNIT UNIT Unsolder points Unsolder 4 points Unsolder point Control dial e Unscrew 7 screws from the UNIT, and remove the UNIT from the CHASSIS. UNIT Chassis -

9 SECTION 4 CIRCUIT DESCRIPTION 4- RECEIVER CIRCUITS CIRCUITS ( UNIT) RX signals from the antenna are sorted by its frequency by the filters and gone through circuits for each bands. And this transceiver also has two RX lines for two independent operating bands; A BAND and B BAND. <A BAND> 7 MHz and below The RX signals are passed through two LPFs, ANT, ATT, band and LPF. The RX signals are sorted by its frequency by band s MHz The RX signals are passed through the band (D0) and LPF, and applied to tuned (Q00). The amplified RX signals are applied to the st mixer (IC900) via the band (D0) MHz The RX signals are passed through the band (D0) and tuned, and applied to the (Q0). The amplified RX signals are passed through tuned, then applied to the st IF mixer (IC900) via the band (D) MHz The RX signals are passed through two LPFs, ANT, ATT, band, LPF and another band in sequence, then applied to the (Q00) via the tuned. The amplified RX signals are passed through another tuned, then applied to another (Q0). The amplified RX signals are applied to the st mixer (IC900) via the band (D). CIRCUITS A:0. 0MHz MHz The RX signals are passed through two LPFs, ANT, ATT and band, then applied to the (Q400). The amplified RX signals are passed through the tuned, and applied to another (Q40). The amplified RX signals are passed through tuned, then applied to the st IF mixer (IC900) via the band MHz The RX signals are passed through the LPF, HPF, ANT, ATT, band, HPF and another band insequence, then applied to the (Q00) via the tuned. The amplified RX signals are passed through another tuned, then applied to another (Q0). The amplified RX signals are applied to the st mixer (IC900) via the band MHz and MHz The RX signals are passed through the LPF, HPFANT, ATT, BAND and tuned in sequence, then applied to the (Q00). The amplified RX signals are passed through another pole tuned, and applied to another (Q0). The amplified RX signals are then applied to the st mixer (IC900) via the band MHz The RX signals are passed through the LPF, HPF, ANT, ATT, band and HPF in sequence, then applied to the (Q00). The amplified RX signals are passed through the tuned, and applied to the (Q0). The amplified RX signals are passed through the, then applied to the st mixer (IC900) via the band. Tx: MHz To st mixer (IC900) for A BAND D0 BAND Q00 D0 L0,0 C0-9 LPF D0 BAND L00,0 C0-04 LPF D00 BAND D9 ATT ANT Q,,D-8 L4,C7-9 LPF L- C- LPF D BAND D4, Q0 D D D D0 BAND A:0 7MHz D ATT ANT L-7 C0-4 HPF D0 L0,0 C0-0 A:74 0MHz D0 Q,,0 D,,4,0,,0 Tx: MHz BAND HPF BAND D Q0 D0-09 Q00 D0 D04,0 D0 L00,0 C0-0 A:7 8MHz D00 BAND BAND LPF BAND D40 D40,40 Q40 D404 A:8 74MHz D40 Q400 D400 BAND D44 D4,4 Q40 D4 B:8 74MHz D40 To st mixer (IC0) for B BAND A:0 0MHz A:470 00MHz D08 Q0 D04,07 Q00 D0 D0,0 D00 BAND D0 D04,0 Q0 D0 D0,0 A:0 470MHz Q00 L00,08 C00-0,0, A:0 470MHz D00 BAND HPF BAND D BAND D,4 Q D D0, B:0 470MHz D70 BAND Q70 AM P D70,704 Q700 D70 D70 D 70 ATT D700 L8,9 C8-0 HPF A:00 000MHz 4 -

10 MHz The RX signals are passed through the HPF, band, ATT and tuned in sequence, then applied to the (Q700). The amplified RX signals are passed through the, and applied to another (Q70). The amplified RX signals are applied to the st mixer (IC900) via the band. The attenuation which reduces RX signal level to 0 db is carried out by D, D9 and D70, by turning these PIN diodes ON using "ATT" signal. FREQUEY CONFIGULATION <B BAND> MHz The RX signals for B BAND are passed through LPFs, ANT, ATT and band, then applied to the (Q400). The amplified RX signals are passed through the, and applied to the tuned (Q40). The amplified RX signals are passed through tuned -pole, then applied to the st mixer (M: IC0) via the band MHz The RX signals are passed through the LPF, HPF, ANT, ATT, band and another HPF in sequence, then applied to the (Q00). The amplified RX signals are passed through -pole tuned, and applied to tuned (Q). The amplified RX signals are passed through another tuned, then applied to the st mixer (M: IC0) via the band. BAND RX MODE st IF st LO nd IF nd LO rd IF rd LO A BAND NFM/AM. MHz. 8.4 MHz (<00 MHz) MHz (>00 MHz) 40 khz. MHz - - WFM 9. MHz.7.7 MHz(7 770 MHz). MHz 4.9 MHz.9 MHz. MHz B BAND NFM/AM 4. MHz MHz (8 74, MHz) 40 khz 4.9 MHz - - ST IF CIRCUIT (MAIN UNIT) <A BAND> The RX signals from the circuits are applied to the st mixer (: IC900) to be converted into the st IF signal, by being mixed with the st Local Oscillator (LO) signals from the VCO UNIT. The st LO signals from the VCO UNIT are applied to the st mixer via the LO, or doubler (in receiving of 00 MHz and above). The converted st IF signal is passed through the IF (D) which toggles the path of the st IF signal: WFM mode or other than WFM mode. FM/AM MODE The st IF signal from the st mixer (: IC900) is entered to the MAIN UNIT, and passed through the st IF filter (FI) via IF s (D, ) to remove unwanted signals. The filtered st IF signals are applied to the st IF (Q00), and the amplified st signal is applied to the nd IF circuit. WFM MODE (Incl. nd IF circuit) When receiving in WFM mode, the st IF signal from the st mixer (: IC900) is entered to the MAIN UNIT and passed through the, then applied to the st IF (Q). The amplified st IF signal is applied to the nd mixer (Q) to converted into the. MHz nd IF signal, by being mixed with the 4.9 MHz nd LO signal (generated by X40, tripled by Q4). The converted nd IF signal is passed through the nd IF filter (FI) to remove sideband noise, then applied to the nd IF (Q00) via the IF (D). The amplified nd IF signal is applied to the rd IF circuit. ST IF CIRCUIT (For FM/AM mode) AND ND IF CIRCUIT (For WFM mode) (A BAND) 00 8 R0.8K C9 D C7 R0 O C8 FI I C4 R9 C7 R C st IF filter FI 4 IN OUT C R7 C9 R8 C C C4 R7 st IF R C0 FM/AM mode WFM mode st IF filter C8 C0 D R C C0 R nd IF filter R8 Q nd mixer R L C79 C D0 Q L0 C9 C0 L0 R4 <B BAND> The RX signals from the circuits are entered to the MAIN UNIT, and applied to the st mixer (IC0) to be converted into the st IF signal, by being mixed with the st Local Oscillator (LO) signals from the B BAND VCO (Q0, ) st IF CIRCUIT (B BAND) R09 X00 C07 R0 C08 C0 C04 C0 Q00 st IF R0 L00 R0 C0 C9 R C8 st IF filter FI0 4 IN OUT C7 4 - via the buffer (Q). The converted st IF signal is passed though the st IF filter (FI0) to remove unwanted signals, then applied to the st IF (Q00). The amplified st IF signal is applied to the nd IF circuits. R EP0 C4 C IC0 IFO VCC 4 PS st mixer I LO C0 C C0 L0

11 ND IF AND DEMODULATOR CIRCUITS (MAIN UNIT) <A BAND> The st IF signal from the st IF (Q00) is applied to the IF IC (IC00). The applied st IF signal is mixed with the. MHz nd LO signal (generated by X40, buffered by Q40) at the internal nd mixer, to be converted into the nd IF signal. The converted nd IF signal is output from pin, then passed through the nd IF filter (FI00) via IF s (D0, 0). FM MODE The filtered nd IF signal is backed to the IF IC from pin, and saturation-amplified by the internal limit. The amplified nd IF signal is FM-demodulated by the discriminator (X00), and the recovered AF signals (RX AF signals) are output from pin 9, then applied to the AF circuits via the AF mute (IC00, pins 8, 9). AM MODE The filtered nd IF signal is amplified by nd IF (Q0), then applied to the AM demodulator circuit (Q04, 0, D0) to be recovered to the AF signals. The demodulated AF signals are applied to the AF circuits. <B BAND> The st IF signal from the st IF (Q00) is applied to the IF IC (IC00). The applied st IF signal is mixed with 4.9 MHz nd LO signal (generated by X40, tripled by Q4) at the internal nd mixer, to be converted into the 40 khz nd IF signal. The converted nd IF signal is output from pin, then passed through one of the nd IF filters. The nd IF signal is passed through FI00 in FM/AM mode, and passed through FI0 in FM-N mode. FM/FM-N/DV MODE The filtered nd IF signal is backed to the IF IC from pin, then saturation-amplified by the internal limit. The amplified nd IF signal is FM-demodulated by the discriminator (X00), and the recovered AF signals (RX AF signals) are output from pin 9, then applied to the AF circuits via the AF mute (IC00, pins 4, ). AM MODE The filtered nd IF signal is amplified by another nd IF (Q0), then applied to the AM demodulator circuit (Q0, 04, D0) to be AM-demodulated. The demodulated AF signals are applied to the AF circuits. ND IF AND FM DEMODULATOR CIRCUITS (A BAND) R R7 C7 R8 D0 FI00 O I C R9 R C C D0 R C R C R4 C C4 C R R08 C C4 C IC00 OSCIN MIXIN OSCOUT 4 MIXOUT N-REC 4 VCC N-DET IFIN RSSI DEC IFOUT 7 0 FILOUT QUAD 8 9 FILIN AFOUT C7 R07 C C X00 R0 L0 C09 C08 R0 C 0 4 AM DEMODULATOR CIRCUIT (A BAND). 44 R 00 R C4 D0 R4 nd IF for AM mode R Q04 C4 R7 R 4 C0 C R R R Q0 D04 C9 C7 4 C8 R0 R0 C4 R C8 C AM demodulator RD IF CIRCUIT (MAIN UNIT) (FOR A BAND, WFM MODE ONLY) The nd IF signal from the nd IF (Q00) is applied to the IF IC. The applied nd IF signal is mixed with the. MHz rd LO signal (generated by X40, buffered by Q40), to be converted into the.9 MHz rd IF signal by the internal rd mixer. The converted rd IF signal is output from pin, and passed through the IF s (D0, 0), then backed to the ND IF AND FM DEMODULATOR CIRCUIT (B BAND) IF IC (bypassing FI00). The rd IF signal is FM-demodulated by the discriminator (X00), and the recovered AF signals (RX AF signals) are output from pin 9, then applied to the AF circuits via the AF mute (IC00, pins 8, 9). AM DEMODULATOR CIRCUIT (B BAND) 00 C FI00 O I C4 0. D0 C EP nd IF for AM mode R R7 R9 C7 C8 R8 FI0 C7 O I D0 C R C8 R7 R C R4 C C4 C R R0 C IC00 OSCIN MIXIN OSCOUT 4 M IXOUT N -REC 4 VCC N-DET IFIN RSSI DEC IFOUT 7 0 FILOUT QUAD 8 9 FILIN AFOUT C C4 C C R09 X00 C07 R0 C08 R0 C0 K R4 Q0 4 Q0 4 D04 R0 C0 C9 C D0 C R R4 C R R0 AM demodulator R0 R C C0 C 4 -

12 RX AF CIRCUITS (LOGIC UNIT) <A BAND> The AF signals from the FM/AM demodulator circuits are passed through the mode (M: IC00D) and one of the AF filters (IC0 and Q0, or, Q0 only) whose audio frequency response is set as stable for each RX mode (FM/ AM or WFM). FM/AM-demodulated AF signals are filtered by IC0, and FM (WFM)-demodulated AF signals are filtered by Q0. The filtered AF signals are passed through the D/A converter (DAC; IC00, pins, ; 4, ) for level adjustment. The level-adjusted AF signals are entered to the LOGIC UNIT via the RX AF mute (M: IC700, pins 8, 9), and applied to the AF power (IC400) to obtain audio output power. The power-amplified AF signals are applied to the internal speaker or output from [DATA/SP/MIC] jack. <B BAND> FM MODE The FM-demodulated AF signals from the mute (M: IC00B) are passed through the mode (IC00A) and AF filter (M: IC0). SQUELCH CIRCUIT The squelch circuit cuts off the AF output signals when no signals are received. Detecting noise components (approx. 0 khz signals) in the demodulated AF signals, the squelch circuit stops audio signals being emitted. A portion of FM-demodulated AF signal from the IF IC (M: IC00/IC00) is passed through the DAC (M: IC00) for level (=threshould) adjustment. The level-adjusted AF signals are passed through the noise filter (IC00, pins 7, 8 and R, C, /IC00, pins 7, 8 and R4, C, ) to filter the noise components (approx. 0 khz signals) only. The noise components are rectified to produce DC voltage corresponding to the noise level. If the noise level is higher than the preset one, the internal comparator set the "ANOISE"/"BNOISE" signal to the CPU to "High", then the CPU turns the "AFON" signal which controlls the AF power (L: IC400) to "Low," to inactivate the AF power (L: IC400). At the same time, the CPU turns the "ARMUTE"/"BRMUTE" signal which controlls the RX AF mute (L: IC700) to "Low," to cut-off the RX AF line. NOISE SQUELCH DIAGRAM (A BAND) AM MODE The AM-demodulated AF signals from the AM detector (M: Q0, 04, D0) are directly passed through the AF filter (M: IC0, pin ). DV MODE The FM-demodulated signals from the IF IC (M: IC00) are passed through the tone filter (M: IC0). The filtered signals are applied to the modem (IC0) via the tone selector (M: IC70) and buffer (IC04B), to be converted into the DV data. The DV data is applied to the CPU (IC), and converted into the AMBE signals. The AMBE signal is then applied to the DSP CODEC IC (IC0) and decoded. The decoded AMBE signals are converted into the analog audio signal by liner CODEC IC (IC0). The converted AF signals are passed through the mode (M: IC00A) and AF filter (M: IC0). To RX AF circuits 9 0 DAC IC00 From IF IC (IC00, Pin) To RX AF circuits 9 0 DAC IC00 From IF IC (IC00, Pin) Noise filter 7 Noise 8 NOISE SQUELCH DIAGRAM (B BAND) Noise filter 7 Noise 8 Noise Comparator detector IC00 Noise Comparator detector IC00 ANOIS BNOIS The filtered AF signals are passed through the D/A converter (DAC; M: IC00, pins, 4;, ) for level adjustment. The level-adjusted AF signals are entered to the LOGIC UNIT via RX AF mute (M: IC700C/D), and applied to the AF power (IC400) to obtain audio output power. The power-amplified AF signals are applied to the internal speaker or output from [DATA/SP/MIC] jack. RX AF CIRCUITS [DATA/MIC/SP] CHASSIS SP SP SP Q40-40 LOGIC UNIT IC400 AF POWER CONTROLLER Q400,40 AFON MAIN UNIT 9,0 RX AF MUTE 8 IC700C/D:CD40 IC70 IC0 LPF CPU 4 97 IC 7,7 IC0 LINEAR CODEC DSP CODEC IC0 0, MODEM IC0 TONE SEL 0 IC04B BUFF 7 TONE FILTER IC0 7 TONE FILTER LPF IC00 4 D/A IC0 AF FIL IC0 7 AF FIL Q0 AF FIL IC00A M ODE IC00D 9 M ODE 8 <B-BAND> FM-demodulated AF signals from IF IC (IC00) <B-BAND> FM-demodulated AF signals from MUTE (IC00) <B-BAND> AM-demodulated AF signals from AM demodulator (D0) <A-BAND> AM/FM-demodulated AF signals from AM demodulator (D0)/mute (IC00) FM-demodulated AF signals from IF IC (IC00) Level-adjusted AF signals to IF IC (IC00) FM-demodulated AF signals from IF IC (IC00) Level-adjusted AF signals to IF IC (IC00) 4-4

13 4- TRANSMIT CIRCUITS TX AF CIRCUITS (LOGIC UNIT) FM MODE MIC signals from the internal/external microphone (MIC signals) are passed through the MIC gain (Q0), and applied to the MIC (Q0, 04). The amplified MIC signals are passed through the mode (IC0) which toggles the MIC line according to the operating mode; FM or DV. The MIC signals are applied to the IDC (Instance Deviation Controller; IC0) circuit which limits the amplitude of MIC signals (=deviation) to prevent over deviation. The amplitude-limited MIC signals are passed through the splatter filter (IC0) which cuts off the khz and higher audio signals. The frequency-limited MIC signals are entered to the MAIN UNIT via the mode (IC0), then applied to the DAC (M: IC00) for level (deviation) adjustment. The level-adjusted MIC signals are applied to the modulation circuits. TX AF CIRCUITS MC00 Q0 GAIN From ext. microphone Q0,04 MIC AM P IC0 MODE 7 IC00 ALC AM P IC0B Q0,07 7 ID C Q09 LPF CTCSS IC0C 9 8 LPF DV MODE The MIC signals from the microphone (MC00) are passed through the MIC gain (Q0) and applied to the MIC (Q0, 04). The amplified MIC signals are applied to the ALC (IC00) which automatically adjusts the level of MIC signals to stable for digital proccessing, via the mode (IC0). The level-adjusted MIC signals are applied to the IDC circuit (IC0) for amplitude-limitting. The amplitude-limited MIC signalsn are passed through the splatter filter (IC0) which cuts off the khz and higher audio signals. The frequency-limited MIC signals are applied to the liner CODEC IC (IC0) via the buffer (IC04A), and encoded into the digital audio signal. The digital audio signal is then applied to the DSP CODEC IC (IC0) and converted into the AMBE signal. The AMBE signal is applied to the modem IC (IC0) via the CPU (IC). The modem IC converts the AMBE signal into the analog signal, and output to the DAC (IC00, pin ) via the buffer (IC0D) and the mode (IC0). The tone signal is level-adjusted by DAC (M: IC00), then applied to the modulation circuits as the modulation signals. IC04A BUFF IC0 LINEAR CODEC DSP CODEC IC0 LOGIC UNIT MAIN UNIT IC00 D/A Modulation signals to the VCO UNIT CPU IC?? IC0,0 MODEM IC0D 4 BUFF IC0 MODE 7 MODULATION CIRCUITS (VCO UNIT) The modulation signals from the DAC (M: IC00, pin ) are entered to the VCO UNIT, and applied to the variable capacitors of VCOs. OPERATING ON VHF BAND The modulation signals are applied to the D of the VHF VCO (Q, D, 4) to obtain FM modulation. The FM-modulated VCO output is buffer-amplified by Q00, amplified by Q0 then entered to the UNIT as TX signal. OPERATING ON UHF BAND The modulation signals are applied to the D00 of the UHF VCO (Q0, D0, 04) to obtain FM modulation. The FM-modulated VCO output is buffer-amplified by Q00, amplified by Q0 then entered to the UNIT as TX signal. TX LIFIERS ( UNIT) TX signal from VCO UNIT is applied to the LO (IC00) via the LO (D00). The amplified TX signal is passed through the ATT (D8, 9) which is a port of the APC circuit. The level-adjusted TX signal is amplified by YGR (Q0), drive (Q0) and power (Q00) amplifiers in sequence, to obtain TX output power. The power-amplified TX signal is passed through the TX filters, power detector and ANT s. OPERATION ON VHF BAND The power-amplified TX signal from the power (Q00) is passed though the LPF, power detector, ANT and two LPFs (as a harmonic filter), then applied to the antenna via ANT connector (CHASSIS; J). OPERATION ON UHF BAND The power-amplified TX signal from the power (Q00) is passed though the, power detector, ANT, HPF and LPF (as a harmonic filter), then applied to the antenna via ANT connector (CHASSIS; J). 4 -

14 APC CIRCUIT ( UNIT) The APC (Automatic Power Control) circuit stabilizes transmit output power to prevent transmit output power level change which is caused by load mismatching or heat effect, etc. TX signal is passed through the power detector (VHF; D4 /UHF; D0,,). The power detector rectifies a portion of the TX signal and converts it into DC voltage which is in proportion to the transmit output power. The detected voltage is applied to the APC controller (IC0B). The TX power setting voltage PSET is applied to another input terminal as the reference voltage. The output voltage is applied to the ATT (D8, 9) to control the attenuation level, to adjust the input level of the YGR (Q0) so that the TX output power is stable. The setting of TX power is carried out by applying voltage DSET to the APC controller (IC0A). The output voltage of the controller controls the bias of the drive and power s to reduce/increase the gain of these amplifi ers to set the TX output power to High, Mid., Low and S-Low. TX LIFIERS AND APC CIRCUIT D 00,80 TX/RX IC00 LO D8,9 ATT Q0 YGR AM P Q0 DRIVE AM P Q00 PWR AM P UHF TX signal L00.0. C00-0,9 Q L- D0,, D L4,C7-9 C- PWR DET ANT HPF LPF ANT GATE CTRL DSET L0,0 C0,07 Q D4- D,7 L-7 C0-4 PSET APC CTRL IC0A VHF TX signal LPF PWR DET ANT LPF IC0B 4- FREQUEY SYNTHESIZER CIRCUITS VCOs This transceiver has total of five VCOs; one RX VCO and RX/TX VCOs on the VCO UNIT, and two RX VCOs on the MAIN UNIT. <A BAND> BC BAND VCO (VCO UNIT; Q, D,,, ) The BC BAND VCO generates the st LO for BC band ( MHz) RX. VHF BAND VCO (VCO UNIT; Q, D, 4) The VHF BAND VCO generates the st LO for VHF band ( MHz) RX, and also TX signal for the operation on the VHF band. UHF BAND VCO (VCO UNIT; Q0, D0, 04) The UHF BAND VCO generates the LO for UHF band ( MHz) RX, and also TX signal for the operation on the UHF band. When receiving 00 MHz and higher signals, the UHF BAND VCO oscillates MHz st LO signals, and the output signal is doubled by the doubler (MAIN UNIT; Q80, D8) before being applied to the mixer (MAIN UNIT; IC900). <B BAND> VHF BAND VCO (MAIN UNIT; Q0, D00, 0) The VHF BAND VCO generates the st LO for VHF band (8 74 MHz) RX for B BAND. PLLs The PLL circuit provides stable oscillation for both of the transmit and st LO frequencies. By comparing the fedback VCO output and the reference frequency signal, the oscillating frequency is stabilized. The PLL output frequency is controlled by the serial data including divide ratio from the CPU. <A BAND> (VCO AND MAIN UNITS) A portion of output signals from each VCO are fedback to the PLL IC (M: IC800) via buffers (V: Q00, 0) and LPF. The applied VCO outputs are divided by the prescaler and programmable divider, then phase-compared with divided reference frequency from X40 (MAIN). The phase difference is output via the charge pump, and applied to the VCOs as lock voltage via the loop filter. <B BAND> (MAIN UNIT) A portion of output signals from each VCO are fedback to the PLL IC (IC400) via buffer (Q). The applied VCO outputs are divided by the prescaler and programmable divider, then phase-compared with divided reference frequency from X40. The phase difference is output via the charge pump, and applied to the VCOs as lock voltage via the loop filter. When the oscillation frequency drifts, its phase changes from that of the reference frequency, causing a lock voltage change to compensate for the drift in the VCO oscillating frequency. UHF BAND VCO (MAIN UNIT; Q, D0, ) The UHF BAND VCO generates the st LO for UHF band (0 470 MHz) RX for B BAND. FREQUEY SYNTHESIZER CIRCUITS (A BAND) UNIT Modulation signals BC:.4.4MHz Q,,D-,, VCO VHF:.0-.4MHz Q,,D,,4, BUFF Q00 LO Q0 FREQUEY SYNTHESIZER CIRCUITS (B BAND) IC0 Q,4,D40 Q40 BUFF MODE Q4 VHF: MHz VCO X4 Q00,0,D00,0 Q,D UHF: MHz Q0,0,00-0,04 BUFF Q0 LPF Q4,D4 X VCO BUFF VCO VCO UNIT IC400 Q0,,D0,D LOOP FILTER IC800 PLL IC. MHz X40,D4 PLL IC LOOP FIL VCO UHF:.0-4.4MHz.MHz reference frequency 4 -

15 4-4 CPU PORT ALLOCATION LINE NAME DESCRIPTION IN/OUT STATUS CONDITION POWER [POWER] key input. (Pull-up). IN L PKEY [PWR] key input (Pull-up). IN L The key is pushed DICK [DIAL] input(phase A). IN DIUD [DIAL] input(phase B). IN PTT [PTT] key input (Pull-down). IN H The key is pushed SQL [SQL] key input (Pull-up). IN L The key is pushed I0 I Initial matrix ports. IN KR0 KR4 Key detect signal. (Pushed bottom is detected according to the input voltage.) IN KS0 KS Key matrix ports. OUT ESIO Serial data to the EEPROM. IN/OUT ECK Clock to the EEPROM. OUT TXC T line regulator (M: Q0 ) control signal. OUT H While transmitting. BLED [BUSY] LED driver (L: Q0) control signal. OUT H RX(Squelch open) LIGHT LCD/Key backlight driver (L: Q0) control signal. OUT L Lights ON. LCDDT Serial data to the LCD driver (L: DS). OUT LCDCS Chip select signal to the LCD driver (L: DS). OUT LCDCK Clock to the LCD driver (L: DS). OUT LCDRS Strobe signal to the LCD driver (L: DS). OUT LCDRES Reset signal to the LCD driver (L: DS). OUT AMBEC DSP IC power line regulator (L:IC08) control signal. OUT H In DV mode operation. DVC Liner CODEC IC power line regulator (L: Q0,04) control signal. OUT H In DV mode operation. TX RS- data (TXD). OUT RX RS- data (RXD). IN TXCK TX clock to the modem (L: IC0). IN TXDT TX data to the modem (L: IC0). OUT RXCK RX clock to the modem (L: IC0). IN RXDT RX data to the modem (L: IC0). IN ACQ ACQ signal to the modem (L: IC0). OUT H Synchronized DCEL DCEL signal to the modem (L: IC0). OUT H Synchronized AMBERES Reset signal to the liner CODEC IC and DSP CODEC IC (L: IC0 and IC0). OUT AMBECLK AMBE clock signal to the DSP CODEC IC (L: IC0). OUT AMBESTB AMBE strobe signal to the DSP CODEC IC (L: IC0). OUT AMBETXD AMBE TX data to the DSP CODEC IC (L: IC0). OUT AMBERXD AMBE RX data to the DSP CODEC IC (L: IC0). IN AMBEEPR AMBE EPR signal to the DSP CODEC IC (L: IC0). IN CLSFT Clock frequency shift signal to the clock oscillator (L:X, D). OUT H DICK [DIAL] (VR) input (Phase A). IN DIUD [DIAL] (VR) input (Phase B). IN CHGC Charging control signal to the charge circuit (L:Q0, D0, ) OUT H While charging. CHGH Charging current control signal to the charging controller (L: Q0, ). OUT H Charging current increase. CPUHV Externalpower supply detection. IN L External power supply is connected. AFON Control signal to the AF power controller (L: Q400, 40). OUT H AF power (L: IC400) is activated (Squelch open). BATT Power supply select signal to the power supply selector (L: IC0, Q). OUT H/L H= Operated by the battery pack. L= Operated by an external power source. SP Speaker select signal to the Internal speaker (L: Q40 40). OUT ANOIS Noise detect signal from the A BAND IF IC (M: IC00). IN BNOIS Noise detect signal from the B-AND IF IC (M: IC00). IN CK Common clock signal to the the PLL ICs and DAC (LMX/ MEE0SL/MAGP). OUT DATA Common serial data to the PLL ICs and DAC (LMX/MEE0SL/ MAGP). OUT 4-7

16 4-4 CPU PORT ALLOCATION (continued) LINE NAME DESCRIPTION IN/OUT STATUS CONDITION DASTB Strobe signal to the DAC (R: IC90). OUT DASTB Strobe signal to the DAC (M: IC00). OUT IOSTB Strobe signal to the expander (R: IC9). OUT IOSTB Strobe signal to the expanders (M: IC70, 70). OUT IOSTB4 Strobe signal to the expander (L: IC). OUT APLLSTB Strobe signal to the A BAND PLL IC (M: IC800). OUT BPLSTB Strobe to the B BAND PLL IC (M: IC400). OUT BPS Power save mode control signal to the A/B BAND PLL ICs (M: IC800/ IC400). OUT L In power save mode. UNLK Unlock signal from the A BAND PLL IC (M: IC800). IN H PLL is locked. CLIN Key detect signal. (Pushed bottom is detected by refering input voltage.) IN A/D ATONE Tone signals; tone and WX A BAND. IN A/D BTONE Tone signals; tone and WX B BAND. IN A/D VIN DC voltage divided by the voltage detect resisters (L: R9 and R0). (Remaining battery capacity detection.) IN A/D OPTV External device detect. IN A/D TEMP The voltage in proportion to the internal temperature. The voltage divided by R (thermistor; LOGIC) and R7 (LOGIC). IN A/D S-TXV While operated by battery RSSI voltage from the IF IC (M: IC00). While perated by external power supply IN A/D Current in TX from the I-V converter (M: IC704). BRSSI RSSI voltage from the B BAND IF IC (M: IC00). IN A/D CTCOUT CTCSS/DTCS signals. OUT D/A DTMF Tone signals; DTMF, EUR tone, OUT D/A RESET Reset signal from the reset IC (L:IC00). IN H 4- VOLTAGE BLOCK DIAGRAMS Voltage from the attached battery pack is routed to the whole of the transceiver via regulators and switches. Q000, D000, 00 IC0 IC00 Battery pack DC-IN DC VCC +V +CPU CPU REG REG BATT Q0 D0, CHG CHGH CHGC Q0 T TXC Q400,40 AFV AFON T IC0 +V REG PCON Q800,80,80 VCOV AF PWR (IC400) AVCOC CVCOC BVCOC +V VCOA, B, C IC0,D0 DC-DC Q0 LEDV LIGHT MAINRV +.V +V +V REG DV AMBE REG AMBEC AMBE V RC RV RV DVC MODEM MODEMV CODEC V CODEC 4-8

17 SECTION ADJUSTMENT PROCEDURE - PREPARATION REQUIRED INSTRUMENTS INSTRUMENTS SPECIFICATION INSTRUMENTS SPECIFICATION DC Cable OPC-4L (Optional product) JIG cable (See the illust below) Power Supply Power Meter (terminated type) Frequency Counter Modulation Analyzer Output voltages Current capacity :.0. V DC : More than A Measuring range : 0. 0 W Frequency range : MHz Impedance : 0 Ω R : Less than. : Frequency range : MHz Frequency accuracy : ± ppm or better Input level : Less than mw Frequency range Measuring range : 0 00 MHz : 0 to ±0 khz Multimeter Standard Signal Generator (SSG) Input impedance Measuring range Frequency range Output level : 0 kω : 0. 0V/ A : MHz : 0.04 µv to mv ( 8 dbu to 90 dbu) AC Millivoltmeter Measuring range : 0 mv to 0 V Attenuator Audio Generator Power attenuation : 0 db Capacity : More than 0 W Frequency range Output level : Hz : 00 mv CAUTION!: BACK UP originally programmed contents (Memory channels, Common settings, etc.) in the transceiver using optional RS-9 REMOTE CONTROL SOFTWARE before starting adjustment. When all adjustments are completed, these contents in the transceiver will be cleared. JIG CABLE CONNECTION [SP] () OPC-797 (Optional product) JIG cables -conductor. (d) mm plug (CLONE) () kω AUDIO GENERATOR ( Hz/ 00 mv) AC MILLIVOLTMETER (0 mv to 0 V) [MIC] -conductor. (d) mm (MIC) plug PTT k µf + + To the [DATA/MIC/SP] jack -

18 M ENTERING ADJUSTMENT MODE q Turn the power OFF. w Connect the JIG cable to the [DATA/SP/MIC] jack. e While pushing [SQL] and [8] keys, turn the power ON. [SQL] Adjustment item Adjustment value Band: Mode Adjustment frequency TX power [PWR] During adjustment mode, the display shows adjustment conditions as above. [8] M KEY ASSIGNMENTS FOR THE ADJUSTMENT MODE Adjusts the value for the item Stores adjustment value Starts automatic adjustment Selects next adjustment item (without storing value) Selects previous adjustment item M QUITTING ADJUSTMENT MODE q Turn the power OFF. w While pushing [VFO], [MR] and [BAND] keys, turn the power ON. (All reset) -

19 - TRANSMIT LIFIER ADJUSTMENT Select an adjustment item using [] / [8] keys, then set the adjustment value as specifi ed using [DIAL]. ADJUSTMENT ADJUSTMENT CONDITION OPERATION IDLING CURRENT (@.0 V) [PREPARATION] 0 Supply voltage :.0 V ) Connect an power meter to the antenna connector. ) Connect a multimeter between the external power supply and transceiver. [VHF BAND] Displayed freq. : " " [UHF BAND] Displayed freq. : " " TRANSMIT Displayed freq. : " " POWER (@.0 V) TX power : " " [VHF (BAND LOW)] [VHF (BAND HIGH)] Displayed freq. : " " TX power : " " [UHF (BAND LOW)] Displayed freq. : " " TX power : " " [UHF (BAND HIGH)] 4 Displayed freq. : " " TX power : " " Adjust the current using [DIAL], then release the PTT and push [BAND] to store the adjustment value. Adjust the TX power using [DIAL], then release the PTT and push [BAND] to store the adjustment value. ADJUSTMENT ITEM VALUE [ ] [ ] ma 0 0 mw POWER METER (0 W/0 Ω) JIG cable (See the page -) Be sure the polarity. MULTIMETER (0 ma to A).0 V DC power supply + To the battery contact pins Fusese (A) + -

20 - TRANSMIT LIFIER ADJUSTMENT (continued) Select an adjustment item using [] / [8] keys, then set the adjustment value as specifi ed using [DIAL]. ADJUSTMENT ADJUSTMENT CONDITION OPERATION IDLING CURRENT (@7.4 V) [PREPARATION] 0 Supply voltage : 7.4 V ) Connect an power meter to the antenna connector. ) Connect a multimeter between the external power supply and transceiver. ADJUSTMENT ITEM VALUE [VHF BAND] Displayed freq. : " " Adjust the current using (Hi power) TX power : " " [DIAL], then release the PTT and push [BAND] to store the.. A adjustment value. (Mid power) Displayed freq. : " " TX power : " " ma (Low power) Displayed freq. : " " TX power : " " (S-Low power) 4 Displayed freq. : " " TX power : " " ma [UHF BAND] Displayed freq. : " " [ ] (Hi power) TX power : " ".. A (Mid power) Displayed freq. : " " TX power : " " ma (Low power) 7 Displayed freq. : " " TX power : " " (S-Low power) 8 Displayed freq. : " " TX power : " " ma POWER METER (0 W/0 Ω) JIG cable (See the page -) Be sure the polarity. MULTIMETER (0 ma to A) 7.4 V DC power supply + To the battery contact pins Black - 4 Fusese (A) White

21 - TRANSMIT LIFIER ADJUSTMENT (continued) Select an adjustment item using [] / [8] keys, then set the adjustment value as specifi ed using [DIAL]. ADJUSTMENT ADJUSTMENT CONDITION OPERATION TRANSMIT POWER (@7.4 V) [PREPARATION] (Hi power) [VHF (BAND LOW)] [VHF (BAND HIGH)] (Mid power) [VHF (BAND LOW)] [VHF (BAND HIGH)] (Low power) [VHF (BAND LOW)] [VHF (BAND HIGH)] (S-Low power) [VHF (BAND LOW)] [VHF (BAND HIGH)] 0 Supply voltage : 7.4 V ) Connect an power meter to the antenna connector. ) Connect a multimeter between the external power supply and transceiver. Displayed freq. : " " TX power : " " Displayed freq. : " " TX power : " " Displayed freq. : " " TX power : " " Displayed freq. : " " TX power : " " Displayed freq. : " " TX power : " " Displayed freq. : " " TX power : " " 4 Displayed freq. : " " TX power : " " Displayed freq. : " " TX power : " " Adjust the TX power using [DIAL], then release the PTT and push [BAND] to store the adjustment value. ADJUSTMENT ITEM VALUE [ ] 4.8. W..7 W W 0 0 mw POWER METER (0 W/0 Ω) JIG cable (See the page -) Be sure the polarity. MULTIMETER (0 ma to A) 7.4 V DC power supply + To the battery contact pins Black - Fusese (A) White

22 - TRANSMIT LIFIER ADJUSTMENT (continued) Select an adjustment item using [] / [8] keys, then set the adjustment value as specifi ed using [DIAL]. ADJUSTMENT ADJUSTMENT CONDITION OPERATION TRANSMIT POWER (@7.4 V) [PREOARATION] (Hi power) [UHF (BAND LOW)] 0 Supply voltage : 7.4 V ) Connect an Power Meter to the antenna connector. ) Connect a multimeter between the external power supply and transceiver. Displayed freq. : " " TX power : " " [UHF (BAND HIGH)] Displayed freq. : " " TX power : " " (Mid power) Displayed freq. : " " [UHF (BAND LOW)] TX power : " " [UHF (BAND HIGH)] 4 Displayed freq. : " " TX power : " " (Low power) Displayed freq. : " " [UHF (BAND LOW)] TX power : " " [UHF (BAND HIGH)] Displayed freq. : " " TX power : " " (S-Low power) 7 Displayed freq. : " " [UHF (BAND LOW)] TX power : " " [UHF (BAND HIGH)] 8 Displayed freq. : " " TX power : " " Adjust the TX power using [DIAL], then release the PTT and push [BAND] to store the adjustment value. ADJUSTMENT ITEM VALUE [ ] 4.8. W..7 W W 0 0 mw POWER METER (0 W/0 Ω) JIG cable (See the page -) Be sure the polarity. MULTIMETER (0 ma to A) 7.4 V DC power supply + To the battery contact pins Black - Fusese (A) White

23 - TRANSMIT LIFIER ADJUSTMENT (continued) Select an adjustment item using [] / [8] keys, then set the adjustment value as specifi ed using [DIAL]. ADJUSTMENT ADJUSTMENT CONDITION OPERATION IDLING CURRENT (@. V) [PREOARATION] 0 Supply voltage :. V (supplying from [DC IN]) ) Connect an Power Meter to the antenna connector. ) Connect a Multimeter between the external power supply and transceiver. ) Set the item [Po] to "00." ADJUSTMENT ITEM VALUE [ ] "00" [VHF BAND] Displayed freq. : " " Adjust the current using 0 70 (Hi power) TX power : " " [DIAL], then release the PTT ma and push [BAND] to store the adjustment value. (Mid power) Displayed freq. : " " 0 40 TX power : " " ma (Low power) Displayed freq. : " " TX power : " " (S-Low power) 4 Displayed freq. : " " TX power : " " ma [ ] [UHF BAND] Displayed freq. : " " (Hi power) TX power : " " ma (Mid power) Displayed freq. : " " 0 40 TX power : " " ma (Low power) 7 Displayed freq. : " " TX power : " " (S-Low power) 8 Displayed freq. : " " TX power : " " ma POWER METER (0 W/0 Ω) JIG cable (See the page -). V MULTIMETER (0 ma to A) DC power supply To [DC IN] OPC-4L + Black White - 7 Fusese (A)

24 - TRANSMIT LIFIER ADJUSTMENT (continued) Select an adjustment item using [] / [8] keys, then set the adjustment value as specifi ed using [DIAL]. ADJUSTMENT ADJUSTMENT CONDITION OPERATION TRANSMIT POWER (@. V) [PREOARATION] (Hi power) [VHF (BAND LOW)] 0 Supply voltage :. V (supplying from [DC IN]) Displayed freq. : " " TX power : " " [VHF (BAND HIGH)] Displayed freq. : " " TX power : " " (Mid power) Displayed freq. : " " [VHF (BAND LOW)] TX power : " " [VHF (BAND HIGH)] 4 Displayed freq. :" " TX power : " " (Low power) Displayed freq. : " " [VHF (BAND LOW)] TX power : " " [VHF (BAND HIGH)] Displayed freq. :" " TX power : " " (S-Low power) 7 Displayed freq. : " " [VHF (BAND LOW)] TX power : " " [VHF (BAND HIGH)] 8 Displayed freq. : " " TX power : " " Connect an Power Meter to the antenna connector. Adjust the TX power using [DIAL], then release the PTT and push [BAND] to store the adjustment value. ADJUSTMENT ITEM [ ] VALUE 4.8. W..7 W W 0 0 mw POWER METER (0 W/0 Ω) JIG cable (See the page -). V MULTIMETER (0 ma to A) DC power supply To [DC IN] OPC-4L + Black White Fusese (A) - 8

25 - TRANSMIT LIFIER ADJUSTMENT (continued) Select an adjustment item using [] / [8] keys, then set the adjustment value as specifi ed using [DIAL]. ADJUSTMENT ADJUSTMENT CONDITION OPERATION TRANSMIT POWER (@. V) [PREPARATION] (Hi power) [UHF (BAND LOW)] 0 Supply voltage :. V (supplying from [DC IN]) Displayed freq. : " " TX power : " " [UHF (BAND HIGH)] Displayed freq. : " " TX power : " " (Mid power) Displayed freq. : " " [UHF (BAND LOW)] TX power : " " [UHF (BAND HIGH)] 4 Displayed freq. : " " TX power : " " (Low power) Displayed freq. : " " [UHF (BAND LOW)] TX power : " " [UHF (BAND HIGH)] Displayed freq. : " " TX power : " " (S-Low power) 7 Displayed freq. : " " [UHF (BAND LOW)] TX power : " " [UHF (BAND HIGH)] 8 Displayed freq. : " " TX power : " " ) Connect an Power Meter to the antenna connector. ) Set the power supply voltage to. V. Adjust the TX power using [DIAL], then release the PTT and push [BAND] to store the adjustment value. ADJUSTMENT ITEM VALUE [ ] 4.8. W..7 W W 0 0 mw POWER METER (0 W/0 Ω) JIG cable (See the page -). V MULTIMETER (0 ma to A) DC power supply To [DC IN] OPC-4L + Black White - 9 Fusese (A)

26 - FREQUEY ADJUSTMENT Select an adjustment item using [] / [8] keys, then set the adjustment value as specifi ed using [DIAL]. ADJUSTMENT ADJUSTMENT CONDITION OPERATION REFEREE FREQUEY Displayed freq. : " " ) Connect an to the antenna connector. ) Loose couple a Frequency Counter to the antenna connector. ) Adjust the frequency using [DIAL], then release the PTT and push [BAND] to store the adjustment value. ADJUSTMENT ITEM [ ] VALUE (Displayed frequency) FREQUEY COUNTER (0. 00 MHz) POWER METER (0 W/0 Ω) (Loose Coupling) JIG cable (See the page -) 7.4 V DC power supply Be sure the polarity. To the battery contact pins Fusese (A)

27 -4 DEVIATION ADJUSTMENTS Select an adjustment item using [] / [8] keys, then set the adjustment value as specifi ed using [DIAL]. ADJUSTMENT ADJUSTMENT CONDITION OPERATION FM DEVIATION [PREPARATION] (@ khz) [VHF (BAND LOW)] 0 Supply voltage : 7.4 V ) Connect a Modulation Analyzer to the antenna connector through an Attenuator. ) Connect an Audio Generator to the JIG cable (see the page -). Displayed freq. : " " [VHF (BAND HIGH)] Displayed freq. : " " [UHF (BAND LOW)] Displayed freq. : " " [UHF (BAND HIGH)] 4 Displayed freq. : " " (@00 Hz) [VHF (BAND LOW)] Channel : " " [VHF (BAND HIGH)] Displayed freq. : " " [UHF (BAND LOW)] 7 Displayed freq. : " " [UHF (BAND HIGH)] 8 Displayed freq. : " " ) Set the Audio Generator as; Frequency : khz Level : 90 mvrms ) Adjust the deviation using [DIAL], then release the PTT and push [BAND] to store the adjustment value. ) Set the Audio Generator as; Frequency : 00 Hz Level : 90 mvrms ) Adjust the deviation using [DIAL], then release the PTT and push [BAND] to store the adjustment value. ADJUSTMENT ITEM VALUE [ ] [ ] khz khz MODULATION ANALYZER (0. 00 MHz) SETTING HPF : OFF LPF : 0 khz De-emphasis : OFF Detector : (P-P)/ ATTENUATOR (0 db/0 W) JIG cable (See the page -) 7.4 V DC power supply Be sure the polarity. To the battery contact pins + - Fusese (A)

28 -4 DEVIATION ADJUSTMENTS (continued) Select an adjustment item using [] / [8] keys, then set the adjustment value as specifi ed using [DIAL]. ADJUSTMENT ADJUSTMENT CONDITION OPERATION DIGITAL VOICE DEVIATION [PREPARATION] (VCO MODULATION) [VHF (BAND LOW)] 0 Supply voltage : 7.4 V Connect a Modulation Analyzer to the antenna connector through an Attenuator. No audio signals are applied. Displayed freq. : " " [VHF (BAND HIGH)] Displayed freq. : " " [UHF (BAND LOW)] Displayed freq. : " " [UHF (BAND HIGH)] 4 Displayed freq. : " " (REF. MODULATION) [VHF (BAND LOW)] Displayed freq. : " " [VHF (BAND HIGH)] Displayed freq. : " " [UHF (BAND LOW)] 7 Displayed freq. : " " [UHF (BAND HIGH)] 8 Displayed freq. : " " Adjust the deviation using [DIAL], then release the PTT and push [BAND] to store the adjustment value. ADJUSTMENT ITEM VALUE [ ] [ ].. khz Minimum deviation MODULATION ANALYZER (0. 00 MHz) SETTING HPF : OFF LPF : 0 khz De-emphasis : OFF Detector : (P-P)/ ATTENUATOR (0 db/0 W) JIG cable (See the page -) 7.4 V DC power supply Be sure the polarity. To the battery contact pins + - Fusese (A)

29 -4 DEVIATION ADJUSTMENTS (continued) Select an adjustment item using [] / [8] keys, then set the adjustment value as specifi ed using [DIAL]. ADJUSTMENT ADJUSTMENT CONDITION OPERATION DTMF, European tone, CTCSS, DTCS DEVIATION [PREPARATION] [DTMF] (VHF) (UHF) [European tone] (VHF) (UHF) [CTCSS] (VHF) (UHF) [DTCS] (VHF) (UHF) 0 Supply voltage : 7.4 V Connect a Modulation Analyzer to the antenna through an Attenuator. No audio signals are applied. Displayed freq. : " " Displayed freq. : " " Displayed freq. : " " Displayed freq. : " " Displayed freq. : " " Displayed freq. : " " 4 Displayed freq. : " " Displayed freq. : " " Adjust the deviation using [DIAL], then release the PTT and push [BAND] to store the adjustment value. ADJUSTMENT ITEM VALUE [ ] [ ] [ ] [ ].4. khz khz MODULATION ANALYZER (0. 00 MHz) SETTING HPF : OFF LPF : 0 khz De-emphasis : OFF Detector : (P-P)/ ATTENUATOR (0 db/0 W) JIG cable (See the page -) 7.4 V DC power supply Be sure the polarity. To the battery contact pins Fusese (A) + -

30 - RECEIVE ADJUSTMENTS STANDARD SIGNAL GENERATOR ( MHz) CAUTION: DO NOT transmit while an SSG is connected to the antenna connector. JIG cable (See the page -) 7.4 V DC power supply Be sure the polarity. To the battery contact pins + Fusese (A) P WHOLE PROCEDURE OF RECEIVE ADJUSTMENTS ) Select an adjustment item using [] / [8] keys. ) Set the SSG as specifi ed (frequency, deviation and output level). ) Push the [BAND] key to adjust (automatic) and store the adjustment value. ADJUSTMENT ADJUSTMENT CONDITION OPERATION A BAND RECEIVE SENSITIVITY [PREPARATION] 0 Supply voltage : 7.4 V Connect an SSG to the antenna connector and set as; Modulation : khz Deviation :. khz [0. MHz] Displayed freq. : " " [49.9 MHz] Displayed freq. : " " [0. MHz] Displayed freq. : " " [7.9 MHz] 4 Displayed freq. : " " [7. MHz] Displayed freq. : " " [90. MHz] Displayed freq. : " " [7.9 MHz] 7 Displayed freq. : " " Frequency : 0. MHz Frequency : 49.9 MHz Frequency : 0. MHz Frequency : 7.9 MHz Frequency : 7. MHz Frequency : 90. MHz Frequency : 7.9 MHz ADJUSTMENT ITEM [ ] VALUE Push the [BAND] key. (Automatic adjustment) - 4

31 RECEIVE ADJUSTMENT (continued) ) Select an adjustment item using [] / [8] keys. ) Set the SSG as specifi ed (frequency, deviation and output level). ) Push the [BAND] key to adjust (automatic) and store the adjustment value. ADJUSTMENT ADJUSTMENT CONDITION OPERATION [8. MHz] 8 Displayed freq. : " " [4. MHz] 9 Displayed freq. : " " [7.9 MHz] 0 Displayed freq. : " " [74. MHz] Displayed freq. : " " [. MHz] Displayed freq. : " " [9.9 MHz] Displayed freq. : " " [0. MHz] 4 Displayed freq. : " " [0. MHz] Displayed freq. : " " [49.9 MHz] Displayed freq. : " " [0. MHz] 7 Displayed freq. : " " [440. MHz] 8 Displayed freq. : " " [49.9 MHz] 9 Displayed freq. : " " [470. MHz] 0 Displayed freq. : " " [. MHz] Displayed freq. : " " [99.9 MHz] Displayed freq. : " " [00. MHz] Displayed freq. : " " [800. MHz] 4 Displayed freq. : " " [999.9 MHz] Displayed freq. : " " Frequency : 8. MHz Level : dbµ Frequency : 4. MHz Level : dbµ Frequency : 7.9 MHz Level : dbµ Frequency : 74. MHz Frequency :. MHz Frequency : 9.9 MHz Frequency : 0. MHz Frequency : 0. MHz Frequency : 49.9 MHz Frequency : 0. MHz Level : dbµ Frequency : 440. MHz Level : dbµ Frequency : 49.9 MHz Level : dbµ Frequency : 470. MHz Frequency :. MHz Frequency : 99.9 MHz Frequency : 00. MHz Frequency : 800. MHz Frequency : MHz ADJUSTMENT ITEM [ ] VALUE Push the [BAND] key. (Automatic adjustment) -

32 RECEIVE ADJUSTMENT (continued) ) Select an adjustment item using [] / [8] keys. ) Set the SSG as specifi ed (frequency, deviation and output level). ) Push the [BAND] key to adjust (automatic) and store the adjustment value. ADJUSTMENT ADJUSTMENT CONDITION OPERATION BAND-B RECEIVE SENSITIVITY [PREPARATION] 0 Supply voltage : 7.4 V Connect an SSG to the antenna connector and set as; Modulation : khz Deviation :. khz [8. MHz] Displayed freq. : " " [4. MHz] Displayed freq. : " " [7.9 MHz] Displayed freq. : " " [0. MHz] 4 Displayed freq. : " " [440. MHz] Displayed freq. : " " [49.9 MHz] Displayed freq. : " " A BAND S-METER [PREPARATION] Frequency : 8. MHz Level : dbµ Frequency : 4. MHz Level : dbµ Frequency : 7.9 MHz Level : dbµ Frequency : 0. MHz Level : dbµ Frequency : 440. MHz Level : dbµ Frequency : 49.9 MHz Level : dbµ 0 Supply voltage : 7.4 V Connect an SSG to the antenna connector and set as; Modulation : khz Deviation :. khz [.0 MHz (S0 level)] Displayed freq. : " " Frequency :.0 MHz Level : 8 dbµ [.0 MHz (S level)] Level : dbµ [.0 MHz (Full scale)] [. MHz (S0 level)] Displayed freq. : " " Frequency :. MHz Level : 0 dbµ [. MHz (S level)] Level : 8 dbµ [. MHz (Full scale)] [40. MHz (S0 level)] Displayed freq. : " " Frequency : 40. MHz Level : 8 dbµ [40. MHz (S level)] Level : dbµ [40. MHz (Full scale)] [0. MHz (S0 level)] 4 Displayed freq. : " " Frequency : 0. MHz Level : 8 dbµ [0. MHz (S level)] Level : dbµ [0. MHz (Full scale)] [87. MHz (S0 level)] Displayed freq. : " " Frequency : 87. MHz Level : 8 dbµ [87. MHz (S level)] Level : dbµ [87. MHz (Full scale)] - ADJUSTMENT ITEM VALUE [ ] Push the [BAND] key. (Automatic adjustment) [ ] Automatic adjustment (Push the [BAND] key)

33 RECEIVE ADJUSTMENT (continued) ) Select an adjustment item using [] / [8] keys. ) Set the SSG as specifi ed (frequency, deviation and output level). ) Push the [BAND] key to adjust (automatic) and store the adjustment value. ADJUSTMENT ADJUSTMENT CONDITION OPERATION [4. MHz (S0 level)] Displayed freq. : " " Frequency : "()" Level : 8 dbµ [4. MHz (S level)] Level : dbµ [4. MHz (Full scale)] [0. MHz (S0 level)] 7 Displayed freq. : " " Frequency : 0. MHz Level : 8 dbµ [0. MHz (S level)] Level : dbµ [0. MHz (Full scale)] [0. MHz (S0 level)] 8 Displayed freq. : " " Frequency : 0. MHz Level : 8 dbµ [0. MHz (S level)] Level : dbµ [0. MHz (Full scale)] [4. MHz (S0 level)] 9 Displayed freq. : " " Frequency : "(7)" Level : 8 dbµ [4. MHz (S level)] Level : dbµ [4. MHz (Full scale)] [. MHz (S0 level)] 0 Displayed freq. : " " Frequency :. MHz Level : 8 dbµ [. MHz (S level)] Level : dbµ [. MHz (Full scale)] [800. MHz (S0 level)] Displayed freq. : " " Frequency : 800. MHz Level : dbµ [800. MHz (S level)] [800. MHz (Full scale)] Level : 8 dbµ [87. MHz (S0 level)] Displayed freq. : " " Frequency : 87.MHz Level : dbµ Modulation : khz Deviation :. khz [87. MHz (S level)] Level : dbµ [87. MHz (Full scale)] Level : dbµ ADJUSTMENT ITEM [ ] [ ] VALUE Automatic adjustment (Push the [BAND] key) Push the [BAND] key. (Automatic adjustment) - 7

34 RECEIVE ADJUSTMENT (continued) ) Select an adjustment item using [] / [8] keys. ) Set the SSG as specifi ed (frequency, deviation and output level). ) Push the [BAND] key to adjust (automatic) and store the adjustment value. ADJUSTMENT ADJUSTMENT CONDITION OPERATION B BAND S-METER [PREPARATION] (VHF) [4. MHz (S0 level)] 0 Supply voltage : 7.4 V Connect an SSG to the antenna connector and set as; Frequency : "()" Modulation : khz Deviation :. khz. Displayed freq. : " " Level : 8 dbµ [4. MHz (S level)] Level : dbµ [4. MHz (Full scale)] (UHF) [4. MHz (S0 level)] Displayed freq. : " " Level : 8 dbµ [4. MHz (S level)] Level : dbµ [4. MHz (Full scale)] A BAND SQUELCH [PREPARATION] 0 Supply voltage : 7.4 V Connect an SSG to the antenna connector and set as; Level : "OFF" [.0 MHz] Displayed freq. : " " [. MHz] Displayed freq. : " " [40. MHz] Displayed freq. : " " [0. MHz] 4 Displayed freq. : " " [87. MHz] Displayed freq. : " " [4. MHz] Displayed freq. : " " [0. MHz] 7 Displayed freq. : " " [0. MHz] 8 Displayed freq. : " " [4. MHz] 9 Displayed freq. : " " [. MHz] 0 Displayed freq. : " " [800. MHz] Displayed freq. : " " (FM) Displayed freq. : " " [4. MHz] Mode : " " [4. MHz] Displayed freq. : " " Mode : " " (NFM) Displayed freq. : " " [4. MHz] Mode : " " [4. MHz] 4 Displayed freq. : " " Mode : " " Frequency : "()" Modulation : khz Deviation :.7 khz Level : 8 dbµ Frequency : "(7)" ADJUSTMENT ITEM [ ] [ ] [ ] VALUE Push the [BAND] key. (Automatic adjustment) Push the [BAND] key. (Automatic adjustment) Push the [BAND] key. (Automatic adjustment) - 8