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HCD-LX50 AEP Model UK Model HCD-LX5 E Model Australian Model HCD-LX6 HCD-LX5/LX6/LX30/LX50 are the Amplifier, CD player, Tape Deck and Tuner Photo: HCD-LX50 section in LBT-LX5/LX6/LX30/LX50. Dolby noise reduction manufactured under license Model Name Using Similar Mechanism HCD-D290/G3300/XB3 from Dolby Laboratories Licensing Corporation.
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OPERATION. REPLACE THESE COMPONENTS WITH DE FONCTIONNEMENT. NE REMPLACER CES COM- SONY PARTS WHOSE PART NUMBERS APPEAR AS POSANTS QUE PAR DES PIÈCES SONY DONT LES SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB- NUMÉROS SONT DONNÉS DANS CE MANUEL OU LISHED BY SONY.
SECTION 1 SERVICING NOTES TABLE OF CONTENTS SERVICING NOTES SAFETY CHECK-OUT ..........3 After correcting the original service problem, perform the follow- ing safety check before releasing the set to the customer: GENERAL Check the antenna terminals, metal trim, “metallized” knobs, Location of Controls ............
SECTION 2 GENERAL This appliance is classified as a CLASS 1 LASER product. LOCATION OF CONTROLS The CLASS 1 LASER PRODUCT MARKING is located on – Front Panel – the rear exterior. Laser component in this product is capable of emitting radiation exceeding the limit for Class 1.
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1 ?/1 (POWER) button qh DISC1-5 button 2 DAILY button qj LOOP button REC button FLASH button SLEEP button NON-STOP button c/CLOCK SET button EDIT button 3 Display qk DECK A operating button 4 SYNC EQ button g button G button x button m button M button...
SECTION 3 DISASSEMBLY Note: Follow the disassembly procedure in the numerical order given. CASE 2 five screws (BVTT3 × 6) 6 case 1 three screws (CASE3 TP2) 3 two screws (BVTP3 × 8) 1 three screws (CASE3 TP2) FRONT PANEL SECTION 1 wire (flat type) (15 core) (CN303) 1 wire (flat type)
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CD MECHANISM DECK (CDM37M-5BD32L) 1 wire (flat type) (19 core) (CN411) 3 three screws 3 three screws (BVTP3 × 8) (BVTP3 × 8) 5 Open the two cable clamps. 2 connector (CN412) 3 two screws (BVTP3 × 8) 7 five screws (BVTP3 ×...
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BASE UNIT (BU-5BD32L) 3 base unit (BU-5BD32L) 2 boss 1 BU fitting screw DISC TABLE Note: When the disc table is installed, adjust the positions of roller cam and mark B as shown in the figure, then set to the groove of disc table.
SECTION 4 DIAGRAMS 4-1. NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS • Circuit Boards Location (In addition to this, the necessary note is printed in each block) SUB TRANS board Note on Schematic Diagram: Note on Printed Wiring Board: (LX5/LX30/LX50) •...
HCD-LX5/LX6/LX30/LX50 4-3. SCHEMATIC DIAGRAM – BD Board – • See page 23 for Waveforms. • See page 36 for IC Block Diagrams. (Page 21) • Voltages and waveforms are dc with respect to ground under no-signal conditions. no mark : CD STOP...
HCD-LX5/LX6/LX30/LX50 4-4. PRINTED WIRING BOARDS – CD MOTOR Section – • See page 11 for Circuit Boards Location. TABLE SENSOR BOARD CD MOTOR BOARD (Page 19) LED BOARD CD MOTOR BOARD...
HCD-LX5/LX6/LX30/LX50 4-5. SCHEMATIC DIAGRAM – CD MOTOR Section – • See page 36 for IC Block Diagrams. (Page 21) • Voltages are dc with respect to ground under no-signal conditions. no mark : CD STOP...
HCD-LX5/LX6/LX30/LX50 4-7. SCHEMATIC DIAGRAM – AUDIO Board – • See page 36 for IC Block Diagrams. (PLAYBACK) PB EQ AMP (DECK A) PB LEVEL (L) (DECK A) PB LEVEL (R) (DECK A) PB EQ AMP (DECK B) PB LEVEL (L) (DECK B) A +7.5V...
HCD-LX5/LX6/LX30/LX50 4-8. PRINTED WIRING BOARD – LEAF SW Board – • See page 11 for Circuit Boards Location. DECK B DECK A PLUNGER PLUNGER (DECK B PLAY) (DECK B 120/70) (DECK A PLAY) (DECK B HALF) (DECK A 120/70) (DECK A REC)
HCD-LX5/LX6/LX30/LX50 4-11. SCHEMATIC DIAGRAM – MAIN Board (1/3) – (Page (Page (Page (Page 31) (Page (Page • Voltages and waveforms are dc with respect to ground under no-signal (detuned) conditions. no mark : TUNER (FM/AM)
HCD-LX5/LX6/LX30/LX50 4-12. SCHEMATIC DIAGRAM – MAIN Board (2/3) – • See page 23 for Waveforms. (Page 22) (Page 20) (Page 22) (Page (Page 25) (Page 13) (Page 15) (Page 22) • Voltages are dc with respect to ground under no- signal (detuned) conditions.
HCD-LX5/LX6/LX30/LX50 4-15. SCHEMATIC DIAGRAM – PANEL FL Board – • See page 23 for Waveforms. • See page 36 for IC Block Diagrams. (Page 29) (Page 29) (Page 21) (Page 27) • Voltages are dc with respect to ground under no-signal (detuned) conditions.
HCD-LX5/LX6/LX30/LX50 4-17. SCHEMATIC DIAGRAM – PANEL VR Board – • See page 36 for IC Block Diagrams. (Page 25) (Page 31) (Page 22) • Voltages are dc with respect to ground under no-signal (detuned) conditions. no mark : FM...
HCD-LX5/LX6/LX30/LX50 4-19. SCHEMATIC DIAGRAM – TC-A/TC-B/CD-L/CD-L2/CD-R/CD-R2 Boards – (Page 25) (Page 25) • Voltages are dc with respect to ground under no-signal (detuned) conditions. no mark : FM...
HCD-LX5/LX6/LX30/LX50 4-21. SCHEMATIC DIAGRAM – FRONT INPUT/HEADPHONE/MIC Boards – (Page 20) (Page 27) (Page 33) • Voltages are dc with respect to ground under no-signal (detuned) conditions. no mark : FM...
HCD-LX5/LX6/LX30/LX50 4-23. SCHEMATIC DIAGRAM – PA Board – (Page 35) (Page 35) (Page • Voltages are dc with respect to ground under no-signal (Page 22) (Page 22) (Page 31) (detuned) conditions. no mark : FM...
HCD-LX5/LX6/LX30/LX50 4-24. PRINTED WIRING BOARDS – TRANS/SUB TRANS (LX5/LX30/LX50) Boards – • See page 11 for Circuit Boards Location. SUB TRANS BOARD (Page 32) (Page TRANS BOARD (Page 32)
HCD-LX5/LX6/LX30/LX50 4-25. SCHEMATIC DIAGRAM – TRANS/SUB TRANS (LX5/LX30/LX50) Boards – (Page 33) (Page 33) (Page 33) The components identified by mark 0 or dotted Les composants identifiés par une marque 0 sont line with mark 0 are critical for safety.
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• IC Block Diagrams – BD Board – IC101 CXD2587Q IC103 CXA2568M-T6 HOLD APC PD AMP LC/PD APC LD AMP – LD ON ERROR DIGITAL CORRECTOR DIGITAL ASYMMETRY – CORRECTION OPERATIONAL – LRCK AMPLIFIER – ANALOG SWITCH PCMD INTERFACE DEMODULATOR HOLD SW CONVERTER AGC CONT...
SECTION 5 EXPLODED VIEWS NOTE: • -XX and -X mean standardized parts, so they • Items marked “*” are not stocked since they The components identified by mark 0 or dotted line with mark may have some difference from the original are seldom required for routine service.
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(3) FRONT PANEL SECTION-2 not supplied supplied with J801, J802 supplied supplied with J803 supplied supplied Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark X-4952-440-1 PANEL ASSY, FRONT (LX30/LX50) 4-226-883-01 COVER (EJECT) X-4952-441-1 PANEL ASSY, FRONT (LX6) 4-226-882-01 LEVER (EJECT-C) X-4952-442-1 PANEL ASSY, FRONT (LX5) 4-226-881-01 LEVER (EJECT-B)
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(4) CHASSIS SECTION US, CND LX5/LX30/LX50 supplied E, MX supplied supplied EA, MY, SP T951 supplied AEP, UK, CIS, EA, MY, SP supplied supplied CDM37M-5BD32L supplied The components identified by Les composants identifiés par une supplied mark 0 or dotted line with marque 0 sont critiques pour la mark 0 are critical for safety.
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(5) TAPE MECHANISM DECK SECTION-1 (TCM-230PWR1) HP101 HRPE101 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 3-376-464-11 SCREW(+PTT 2.6X6),GROUND POINT 3-017-366-01 BASE (PINCH LEVER REV) 3-911-116-42 RIVET, PUSH 3-026-892-01 SPRING (CASSETTE), LEAF 3-016-574-01 SPRING (HEAD), TENSION A-2007-799-A AUDIO BOARD, COMPLETE X-3374-156-4 PINCH LEVER (REV) ASSY HP101...
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(6) TAPE MECHANISM DECK SECTION-2 (TCM-230PWR1) Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark X-3374-214-1 CHASSIS ASSY, MAIN A-2004-630-A MECHANICAL BLOCK ASSY 3-016-570-01 BELT (CAPSTAN) 3-016-566-01 SLIDER, REVERSE 3-016-569-01 BELT (TENSION) A-2007-800-A LEAF SW BOARD, COMPLETE * 454 3-016-568-01 BRACKET (MOTOR) 3-016-575-01 SPRING, TORSION...
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(7) CD MECHANISM DECK SECTION (CDM37M-5BD32L) supplied M201 supplied Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 4-987-976-01 SCREW, STEP * 514 A-4673-765-A CD MOTOR BOARD, COMPLETE 4-944-490-01 BELT (TIMING) 4-978-426-01 INDICATOR (NO.) A-4660-978-A GEAR (PULLEY) ASSY * 516 1-659-059-13 LED BOARD 4-978-421-01 GEAR (MID)
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(8) BASE UNIT SECTION (BU-5BD32L) M101 M102 The components identified by Les composants identifiés par une mark 0 or dotted line with marque 0 sont critiques pour la mark 0 are critical for safety. sécurité. Replace only with part num- Ne les remplacer que par une pièce ber specified.
SECTION 6 AUDIO ELECTRICAL PARTS LIST NOTE: • Due to standardization, replacements in the • Items marked “*” are not stocked since they The components identified by mark 0 or dotted line with mark are seldom required for routine service. parts list may be different from the parts speci- 0 are critical for safety.
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PANEL VR SUB TRANS TABLE SENSOR TC-A TC-B TRANS Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark S701 1-473-392-11 ENCODER, ROTARY (VOLUME) S644 1-762-875-21 SWITCH, KEYBOARD (. AMS > m) S645 1-762-875-21 SWITCH, KEYBOARD (. AMS > M) ************************************************************** 1-676-268-11 SUB TRANS BOARD (LX5/LX30/LX50) S646...
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HCD-LX5/LX6/LX30/LX50 The components identified by Les composants identifiés par une mark 0 or dotted line with marque 0 sont critiques pour la mark 0 are critical for safety. sécurité. TRANS Replace only with part num- Ne les remplacer que par une pièce ber specified.