PMC-DR50L/DR70L SERVICE MANUAL PERSONAL COMPONENT SYSTEM. AEP Model UK Model E Model PMC-DR50L/DR70L Tourist Model PMC-DR50L. Ver

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Name Using Similar Mechanism NEW Section Tape Transport Mechanism Type MF-PMCR50 Model Name

1 SERVICE MANUAL Ver AEP Model UK Model E Model PMC-R50L/R70L Tourist Model PMC-R50L Photo : PMC-R70L Model Name Using Similar Mechanism NEW Section Tape Transport Mechanism Type MF-PMCR50 Model Name Using Similar Mechanism NEW C M Mechanism Type KSM-3CCP Section Optical Pick-up Type KSS-3C SPECIFICATIONS Continued on page PERSONAL COMPONENT SYSTEM MICROFILM

2 5-5. SCHEMATIC IAGRAM MAIN SECTION (/3) r Refer to page 74 for IC Block iagram. r Waveforms MAIN SECTION (/3).5Vp-p 75kHz VOLT/IV : 0.5 V AC TIME/IV : 5 msec 556mVp-p 4.33MHz IC4! VOLT/IV : 0. V AC TIME/IV : 50 nsec : internal component. H : adjustment for repair. Voltages and waveforms are dc with respect to ground under no-signal (detuned) conditions. no mark : FM ( ) : MW < > : LW Waveforms are taken with a oscilloscope. Circled numbers refer to waveforms. f : MW L : LW

3 5-6. SCHEMATIC IAGRAM MAIN SECTION (/3) r Refer to page 74 for IC Block iagrams. r Refer to page 45 for Waveforms. r Refer to page 45 for Notes

4 5-7. SCHEMATIC IAGRAM MAIN SECTION (3/3) PMC-R50L/R70L r Waveforms MAIN SECTION (/3) 60Vp-p 57kHz L30 ATT : /0 VOLT/IV : V AC TIME/IV : 5 µsec 5Vp-p 57kHz Q30 C VOLT/IV : 5 V AC TIME/IV : 5 µsec Note on Schematic iagram Main Section (/3) : H : adjustment for repair. Voltages and waveforms are dc with respect to ground under no-signal (detuned) conditions. no mark : COMMON (REC) ( ) : PLAY Waveforms are taken with a oscilloscope. Circled numbers refer to waveforms. E : PB a : REC J : C Note on Schematic iagram Main Section (3/3) : Voltages are dc with respect to ground under no-signal (detuned) conditions. no mark : FM c : digital out

5 5-9. SCHEMATIC IAGRAM C SECTION r Refer to page for IC Block iagrams. r Refer to page 55 for Waveforms. PMC-R50L/R70L The components identified by mark! or dotted line with mark! are critical for safety. Replace only with part number Voltages and waveforms are dc with respect to ground under no-signal (detuned) conditions. no mark : C STOP ( ) : C PLAY Waveforms are taken with a oscilloscope. Circled numbers refer to waveforms. J : C c : digital out

6 5-0. SCHEMATIC IAGRAM CONTOROL SECTION r Waveforms (C SECTION) r Waveforms CONTROL SECTION (PLAY MOE).0.5Vp-p 4.8Vp-p 3.768kHz IC70 # (RFO) VOLT/IV : 0.5 V AC TIME/IV : µsec IC80 $ VOLT/IV : V AC TIME/IV : 0 µsec (PLAY MOE) 0.6Vp-p.5Vp-p 8MHz IC70 6 (FEO) 3 (PLAY MOE) VOLT/IV : V AC TIME/IV : msec IC80 $º VOLT/IV : 0.5V AC TIME/IV : 50 nsec 0.7Vp-p IC70 $ (TO) VOLT/IV : 0mV AC TIME/IV : msec 4 875mVp-p 0.6MHz 8.6 µsec (PCO) VOLT/IV : 0.5 V AC TIME/IV : 5 µsec 5 4.7Vp-p.85 µsec IC75 #ª, $º (LRCK) 6 IC75 & (XTAO) MHz VOLT/IV : V AC TIME/IV : 5 µsec 7mVp-p VOLT/IV : 0.V AC TIME/IV : 0 nsec Voltages and waveforms are dc with respect to ground under no-signal (detuned) conditions. no mark : RAIO (COMMON) ( ) : C < > : REC [ ] : PLAY Waveforms are taken with a oscilloscope. Circled numbers refer to waveforms

7 5-3. SCHEMATIC IAGRAM SECTION : nonflammable resistor. The components identified by mark! or dotted line with mark! are critical for safety. Replace only with part number Voltages are dc with respect to ground under no-signal (detuned) conditions. no mark : FM

8 5-5. SCHEMATIC IAGRAM WOOFER SECTION (R70L ONLY) r Refer to page 76 for IC Block iagram. Voltages are dc with respect to ground under no-signal (detuned) conditions. no mark : FM

9 r IC Block iagrams MAIN SECTION (/3) IC30 TA068N L.RA 4 5k MIC I/EX LINE 3 L.C RAIO BUF A 6k REC k MUTE L.LO 0 MONITOR 7dB ON R.LO RAIO k LOGIC k ON MONITOR 7dB MUTE 6k R.C RAIO LINE BUF BUF B B BUF A MUTE R.RA MIC MIC IC305 BA338 OUT NOISE FILTER MUTING GN NFB IN S B+ Q R F.F. PRE COMPARATOR COMPARATOR COMPARATOR SENSE TIMING PULSE WITH r IC Block iagrams C SECTION IC70 CXA99BR F. BIAS F E P IV E IV P 39 F IV P IV P P L RFTC RF- RFO APC LASER POWER CONTROL FE RF SUMMING RFI CP CB CC CC FOK IIL TTL SENS SENS C. OUT IC75 CX589Q V 6 SYSM 6 AVSS 63 AV 64 VSS 60 PWM EXCK SBSO SCOR WFCK ENPHI SERIAL-IN INTERFACE OVER SLING IGITAL FILTER EMPH OUT C4M XTSL CPO GFS XPCK XUGF V EFM EMOULATOR VSS BCKI BCK PCMI PCM ASYMMETRY CORRECTOR LRCKI LRCK ASYO ASYI BIAS AGC L.PO NAB 3 L.NF 6dB REC ALC L.RO IC30 BH3854AFS FILTER 3 AGN IN 3 IN NF 30 3 NF VN 9 4 BVN L.IN BIN 8 BIN ET REF. REF BVO BVO TIN TIN ALC 6dB REC ON NAB GN TVO TVO R.IN OUT OUT R.RO VC R.NF TC SC R.PO BC PORT CLK k MIC NF TONE MATRIX SURROUN TONE VR VR CONTROL PORT ATA PORT3 LATCH PORT4 VREF GN EI GN TO LPFI TI ATSC TZC TFCT VC FZC BAL TOG TOG TOG3 TOG4 BAL BAL3 BAL4 ATSC WINOW COMP. TZC COMP. FZC COMP. TGFL E-F BALAE WINOW COMP. FCT IFB IFB IFB3 IFB4 IFB5 IFB6 TM FCT TRK. GAIN WINOW COMP. TG FS4 FO. BIAS WINOW COMP. FOCUS PHASE COMPENSATION FOH FOL TGH TGL BALH BALL ATSC TZC FZC FOK TRACKING PHASE COMPENSATION LEVEL S FCTO IFB-6 BAL-4 TOG-4 Charge up IIL TTL IIL ATA REGISTER, INPUT SHIFT REGISTER, ARESS ECOER, SENS SELECTOR, OUTPUT ECOER FS-4 TG- TM-7 PS LON LPCL LPC TGFL FS FS MIRR MIRR TG FCT FCT TM7 CC FSET TM4 TM3 TM6 TTL IIL ISET TM5 TM XRST ATA XLT CLK LOCK ISET SLO SL- SL+ AOUT AIN LOUT AVSS XV XTAI XTAO 7 XVSS 7 AVSS 73 LOUT 74 AIN 75 AOUT 76 AV 77 AVSS 78 XRST 79 V 80 TIMING LOGIC PWM 3rd-ORER NOISE SHAPER SUB COE PROCESSOR CPU INTERLACE IGITAL OUT ERROR CORRECTOR SERVO AUTO SEQUEER /A INTERFACE CLOCK GENERATOR VSS LMUTE RMUTE SQCK SQSO SENS ATA XLAT CLOK SEIN CNIN ATO XLTO CLKO SPOA 6K RAM SPOB XLON FOK V VSS IGITAL PLL OSC IGITAL CLV RF AV CLTV AVSS FILI FILO PCO VCTL V6M VCKI VPCO TES TEST PWMI MP IC70 BA6898FP GN F- FEO FEI F+ FIN VREFI FFCT FG FLB FE_O TIN 0 9 T- T+ SPIN TG FSET FE- SRCH TGU TE- TEO IC65 TA8409S STANBY BLOCK VREF BLOCK r IC Block iagrams WOOFER SECTION IC60 TA05 LEVEL SHIFT LEVEL SHIFT LEVEL SHIFT T. S.. REGULATOR, BIAS, T. S.. MONITOR RIVER MUTE LEVEL SHIFT SL+ SLIN RST REG B REG MUTE GN SIN SL- SP- SP+ GN SPO HEAT CUT OFF BLOCK IN OUT GN VS OUT VREF IN OUT V MUTE/ ST-BY MUTE/ STANBY IN+ IN IN

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