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Sony PHC-ZW770L Service Manual

Personal audio system
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SERVICE MANUAL
Ver 1.0 1999. 03
CD player section
System
Compact disc digital audio system
Laser diode properties
Material: GaAlAs
Wave length: 780 nm
Emission duration: Continuous
Laser output: Less than 44.6 µW
(This output is the value measured at a distance of
about 200 mm from the objective lens surface on
the optical pick-up block with 7 mm aperture.)
Spindle speed
200 r/min (rpm) to 500 r/min (rpm) (CLV)
Number of channels
2
Frequency response
20 - 20,000 Hz +1/–2 dB
Wow and flutter
Below measurable limit
Radio section
Frequency range
FM: EE and CET model
65 - 74 MHz
87.5 - 108 MHz
Except EE and CET model
87.5 - 108 MHz
MW: 531 - 1,602 kHz
LW: 153 - 279 kHz
IF
FM: 10.7 MHz
MW/LW: 450 kHz
Aerials:
FM: Telescopic antenna
MW/LW: Built-in ferrite bar antenna
MICROFILM
PHC-ZW770L
Model Name Using Similar Mechanism PMC-D305L
CD
CD Mechanism Type
Section
Optical Pick-up Name
Model Name Using Similar Mechanism NEW
TC
Section Tape Transport Mechanism Type
SPECIFICATIONS
Cassette-corder section
Recording system
4-track 2 channel stereo
Fast winding time
Approx. 120 s (sec.) with Sony cassette C-60
Frequency response
TYPE I (normal): 80 - 12,500 Hz
General
Speaker
Full range: 10 cm (4 in.) dia.,
6 ohms, cone type (2)
Outputs
Headphones jack (stereo minijack)
For 16 - 68 ohms impedance headphones
Maximum power output
4.5 W + 4.5 W
Power requirements
For personal audio system:
230 V AC, 50 Hz
9 V DC, 6 R20 (size D) batteries
For memory back-up:
4.5 V DC, 3 R6 (size AA) batteries
For remote controller:
3 V DC, 2 R6 (size AA) batteries
Power consumption
AC 28 W
PERSONAL AUDIO SYSTEM
– 1 –
AEP Model
UK Model
E Model
KSM-213CDM
KSS-213C
MF-ZW750-117
– Continued on next page –

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Summary of Contents for Sony PHC-ZW770L

  • Page 1 Compact disc digital audio system 4-track 2 channel stereo Laser diode properties Fast winding time Material: GaAlAs Approx. 120 s (sec.) with Sony cassette C-60 Wave length: 780 nm Frequency response Emission duration: Continuous TYPE I (normal): 80 - 12,500 Hz Laser output: Less than 44.6 µW...
  • Page 2 PHC-ZW770L 5-6. SCHEMATIC DIAGRAM — CD SECTION — • Refer to page 22 for Note on Schematic Diagram. • Refer to page 41 for IC Block Diagrams. • Waveforms (MODE:PLAY) 2.2Vp-p 2.5V 2.5V Approx. 200mVp-p 16.9344MHz Approx. 100mVp-p &¡ $¶...

  • Page 3: Schematic Diagram - Control Section

    PHC-ZW770L 5-8. SCHEMATIC DIAGRAM — CONTROL SECTION — • Refer to page 25 for Note on Schematic Diagram. • Refer to page 43 for IC Block Diagrams. (Page 40) (Page 24) (Page 33) – 27 – – 28 –...
  • Page 4 PHC-ZW770L 5-10. SCHEMATIC DIAGRAM — MAIN SECTION (1/2) — • Refer to page 43 for IC Block Diagrams. • Semiconductor Location Ref. No. Location Ref. No. Location G-12 IC302 F-12 IC303 E-11 IC304 IC305 B-11 F-10 B-11 F-10 F-10 D-12...

  • Page 5: Schematic Diagram - Power Supply Section

    PHC-ZW770L 5-12. SCHEMATIC DIAGRAM — POWER SUPPLY SECTION — (Page (Page PL801-803 LCD BACK LIGHT Note: • All capacitors are in µF unless otherwise noted. pF: µµF • Power voltage is dc 9 V and fed with regulated dc power 50 WV or less are not indicated except for electrolytics supply from battery terminal.
  • Page 6 PHC-ZW770L 5-13. SCHEMATIC DIAGRAM — MAIN SECTION (2/2) — • Refer to page 44 for IC Block Diagrams. 0.5-110 (VT) (Page 27) (Page 31) (Page 37) Note: • All capacitors are in µF unless otherwise noted. pF: µµF no mark : FM...

  • Page 7: Ic Block Diagrams

    • IC Block Diagrams IC701 CXA1992BR 32 31 28 27 RF SUMMING AMP PD2 IV PD1 IV SENS2 FE BIAS SENS1 C OUT F IV AMP LASER POWER CONTROL FE AMP E IV AMP XRST DATA TGFL DFCT MIRR TRK GAIN WINDOW COMP FO BIAS E-F BALANCE...
  • Page 8 IC702 BA6898FP REGULATOR 12 13 IC703 CXD2589Q 59 58 57 54 53 52 51 SYSM SERIAL-IN INTERFACE LRCKI LRCK AVSS OVER SAMPLING ASYO DIGITAL FILTER ASYI ASYMMETRY DEMODULATOR CORRECTOR AVDD BIAS 3rd-ORDER AVDD NOISE SHAPER AOUT1 AIN1 CLTV LOUT1 AVSS ERROR XVDD CORRECTOR...
  • Page 9 IC803 M62354P 8 BIT 8 BIT 8 BIT 8 BIT R-2R+SEGMENT R-2R+SEGMENT R-2R+SEGMENT R-2R+SEGMENT D-A CONVERTOR D-A CONVERTOR D-A CONVERTOR D-A CONVERTOR 8 BIT 8 BIT 8 BIT 8 BIT LATCH LATCH LATCH LATCH ADDRESS DECODER 8 BIT 8 BIT LATCH LATCH D8-D11...
  • Page 10 IC301 BA3426AS TAPE-NF-L TAPE-O-L TR-B TR-C TAPE-NF-R TAPE-MODE REC EQ REC EQ TAPE-O-R LOGIC MIC/HS REC-EQ-L MIC-NF REC-EQ-R MIC-IN REC-NF-L RADIO-IN-L REC-NF-R RADIO-IN-R LPF-L CD-IN-L LPF-R CD-IN-R LINE-OUT-L BIAS LINE-OUT-R BIAS-IN IC1 TA2104AN IC2 LC72137-D GND1 FM RF OUT FM RF 22 NC VCC1 FM RF IN...