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SERVICE MANUAL
HCD-VR50/VR70 is the tuner, deck, CD and
amplifier section in LBT-VR50/VR70.
MICROFILM
HCD-VR50/VR70
Photo: HCD-VR50
CD
SECTION
TAPE DECK
SECTION
SPECIFICATIONS
Model Name Using Similar Mechanism
CD Mechanism Type
Base Unit Type
Optical Pick-up Type
Model Name Using Similar Mechanism
Tape Transport Mechanism Type
COMPACT DISC DECK RECEIVER
– 1 –
E Model
HCD-DR7AV/XB800AV
CDM37L-5BD34L
BU-5BD34L
KSS-213D/Q-NP
HCD-DR7AV/XB800AV
TCM-230AWR2/230PWR2
— Continued on next page —
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Related Manuals for Sony HCD-VR50
Summary of Contents for Sony HCD-VR50
- Page 1 HCD-VR50/VR70 SERVICE MANUAL E Model HCD-VR50/VR70 is the tuner, deck, CD and amplifier section in LBT-VR50/VR70. Photo: HCD-VR50 Model Name Using Similar Mechanism HCD-DR7AV/XB800AV CD Mechanism Type CDM37L-5BD34L SECTION Base Unit Type BU-5BD34L Optical Pick-up Type KSS-213D/Q-NP Model Name Using Similar Mechanism...
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Page 2: Schematic Diagram - Bd Section
HCD-VR50-/VR70 7-4. SCHEMATIC DIAGRAM – BD SECTION – • See page 32 for Waveforms. • See page 98 for IC Block Diagrams. • See page 101 for IC Pin Functions. (Page 45) – 37 – – 38 –... -
Page 3: Schematic Diagram - Deck Section
HCD-VR50/VR70 7-5. SCHEMATIC DIAGRAM – DECK SECTION – • See page 98 for IC Block Diagrams. (Page 59) – 39 – – 40 –... -
Page 4: Schematic Diagram - Video (1/3) Section
HCD-VR50-/VR70 7-8. SCHEMATIC DIAGRAM – VIDEO (1/3) SECTION – • See page 34 for Waveforms. • See page 103 for IC Pin Functions. (Page (Page 37) (Page 58) (Page 47) (Page 47) (Page 49) – 45 – – 46 –... -
Page 5: Schematic Diagram - Video (2/3) Section
HCD-VR50/VR70 7-9. SCHEMATIC DIAGRAM – VIDEO (2/3) SECTION – • See page 34 for Waveforms. • See page 105 for IC Pin Functions. • See page 43 for Printed Wiring Board. (Page 45) (Page 45) (Page (Page – 47 –... -
Page 6: Schematic Diagram - Video (3/3) Section
HCD-VR50-/VR70 7-10. SCHEMATIC DIAGRAM – VIDEO (3/3) SECTION – • See page 34 for Waveforms. • See page 43 for Printed Wiring Board. (Page 46) (Page 46) (Page 48) (Page 53) (Page 48) – 49 – – 50 –... -
Page 7: Schematic Diagram - Main (1/5) Section
HCD-VR50-/VR70 7-12. SCHEMATIC DIAGRAM – MAIN (1/5) SECTION – • See page 99 for IC Block Diagrams. (Page (Page (Page 50) (Page (Page 84) (Page (Page – 53 – – 54 –... -
Page 8: Schematic Diagram - Main (2/5) Section
HCD-VR50/VR70 7-13. SCHEMATIC DIAGRAM – MAIN (2/5) SECTION – • See page 34 for Waveforms. • See page 51 for Printed Wiring Board. • See page 108 for IC Pin Functions. (Page 61) (Page 54) (Page 62) (Page 72) (Page 59,... -
Page 9: Schematic Diagram - Main (3/5) Section
HCD-VR50/VR70 7-14. SCHEMATIC DIAGRAM – MAIN (3/5) SECTION – • See page 51 for Printed Wiring Board. (Page 55, 56) (Page 56) (Page 45) (Page 88) (Page 59) (Page 61) (Page 54) – 57 – – 58 –... -
Page 10: Schematic Diagram - Main (4/5) Section
HCD-VR50/VR70 7-15. SCHEMATIC DIAGRAM – MAIN (4/5) SECTION – • See page 51 for Printed Wiring Board. (Page 54) (Page 40) (Page 70) (Page 61) (Page 57) (Page 55) – 59 – – 60 –... -
Page 11: Schematic Diagram - Main (5/5) Section
HCD-VR50/VR70 7-16. SCHEMATIC DIAGRAM – MAIN (5/5) SECTION – • See page 51 for Printed Wiring Board. (Page (Page (Page 92) (Page (Page 54) (Page 56) (Page (Page 65) (Page 65) – 61 – – 62 –... - Page 12 HCD-VR50/VR70 7-18. SCHEMATIC DIAGRAM – POWER (1/2) SECTION – (Page 95) (Page 62) (Page 62) (Page 91) (Page 67) (Page 67) (Page 68) – 65 – – 66 –...
- Page 13 HCD-VR50/VR70 7-19. SCHEMATIC DIAGRAM – POWER (2/2) SECTION – • See page 63 for Printed Wiring Board. (Page 65) (Page 65) (Page 66) – 67 – – 68 –...
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Page 14: Printed Wiring Board - Leaf Sw Section
HCD-VR50/VR70 7-20. PRINTED WIRING BOARD – LEAF SW SECTION – • See page 18 for Circuit Boards Location. (Page 51) 7-21. SCHEMATIC DIAGRAM – LEAF SW SECTION – (Page 59) – 69 – – 70 –... -
Page 15: Schematic Diagram - Panel Fl Section
HCD-VR50/VR70 7-22. SCHEMATIC DIAGRAM – PANEL FL SECTION – • See page 100 for IC Block Diagrams. • See page 110 for IC Pin Functions. (Page 79) (Page (Page 79) (Page 56) (Page 75) – 71 – – 72 –... -
Page 16: Schematic Diagram - Panel Vr Section
HCD-VR50/VR70 7-24. SCHEMATIC DIAGRAM – PANEL VR SECTION – • See page 99 for IC Block Diagrams. (Page 72) – 75 – – 76 –... -
Page 17: Schematic Diagram - Tc Panel Section
HCD-VR50/VR70 7-26. SCHEMATIC DIAGRAM – TC PANEL SECTION – (Page 72) (Page 71) (Page 84) (Page 83) (Page 72) – 79 – – 80 –... -
Page 18: Schematic Diagram - Cd Panel Section
HCD-VR50/VR70 7-28. SCHEMATIC DIAGRAM – CD PANEL SECTION – (Page 80) (Page 79, 80) R741 R740 R739 R738 R737 4.7k 3.3k 2.7k 1.8k 1.2k S671 S670 S669 S668 S667 SELECT RETURN PREV NEXT ACTIVE 0.01 0.01 0.01 (Page 53) – 83 –... -
Page 19: Schematic Diagram - Cd Motor Section
HCD-VR50/VR70 7-30. SCHEMATIC DIAGRAM – CD MOTOR SECTION – (Page 58) – 87 – – 88 –... -
Page 20: Schematic Diagram - Jack Section
HCD-VR50/VR70 7-32. SCHEMATIC DIAGRAM – JACK SECTION – (Page 65) (Page 62) – 91 – – 92 –... -
Page 21: Schematic Diagram - Trans Section
HCD-VR50/VR70 7-34. SCHEMATIC DIAGRAM – TRANS SECTION – (Page 65) – 95 – – 96 –... -
Page 22: Ic Block Diagrams
7-36. IC BLOCK DIAGRAMS • BD Board IC101 CXD3008Q 80 79 78 77 76 75 74 73 72 71 70 69 68 67 66 LRCK XRST DIGITAL DOUT MUTE DATA DATA ASYE XLAT XLAT INTERFACE CLOK CLOK INTERFACE SENS SENS VPC0 CLOCK V16M... - Page 23 • BD Board • VIDEO Board (3/3) IC103 CXA2568M-T6 IC509 PCM1727E-2/T2 384fs APC PD AMP LC/PD CLOCK MANAGER LD_ON • DUAL PLL HOLD AGCVTH VREF DGND PGND POWER APC LD AMP SUPPLY HOLD_SW AGCCONT SCKO1 (50%/30% SCKO2 OFF) NCKO LRCK RF_BOT SCKO3 AUDIO...
- Page 24 • PANEL FL Board IC603 BA3830F REFFERENCE RESET 18 RESET CURRENT REFFERENCE 17 f01 CURRENT LINE 16 f02 LINE 15 f03 13 f05 RESET 12 f06 BIAS 11 REC Bias LEVEL GND1 10 VCC IC604 NJU3716L DATA CONTROL 17 18 19 –...