Sony MHC-NX1AV Service Manual
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Sony MHC-NX1AV Service Manual

Sony MHC-NX1AV Service Manual

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  • Page 1 http://servis-manual.com/...
  • Page 2 http://servis-manual.com/...

  • Page 3: Section 4 Test Mode

    SECTION 4 TEST MODE [LED All Lit, Key Check Mode] Procedure: 1. Press the button to turn the power ON. 2. Press three buttons of (DECK B), (DISC 1), and [DISC 5] simultaneously. 3. LEDs are all turned on. Press the (CD) button, and the key check mode is activated.

  • Page 4: Section 5 Mechanical Adjustments

    SECTION 5 SECTION 6 MECHANICAL ADJUSTMENTS ELECTRICAL ADJUSTMENTS Precaution TAPE DECK SECTION 0 dB=0.775 V 1. Clean the following parts with a denatured alcohol-moistened swab: 1. Demagnetize the record/playback head with a head demagne- record/playback heads pinch rollers tizer. erase head rubber belts 2.
  • Page 5 DECK B 2. Turn the adjustment screw and check output peaks. If the peaks Tape Speed Adjustment do not match for L-CH and R-CH, turn the adjustment screw so that outputs match within 1dB of peak. • Execute only if connected to the STR-NX1/NX3 Mode: Playback test tape AUDIO OUT jack...
  • Page 6 DECK B REC Bias Adjustment Specified value: AUDIO OUT jack PB level: 47.2 to 53.0 mV (–24.3 to –23.3 dB) Procedure: 1. Mode: Record Adjustment Location: MAIN board AUDIO IN jack – MAIN BOARD (Conductor Side) –  1) 315 Hz ...

  • Page 7: S-Curve Check

    RF LEVEL CHECK CD SECTION Note: oscilloscope 1. CD Block is basically designed to operate without adjustment. There- fore, check each item in order given. BD board 2. Use YEDS-18 disc (3-702-101-01) unless otherwise indicated. 3. Use an oscilloscope with more than 10 MΩ impedance. TP (RF) 4.
  • Page 8 HTC-NX1 7-3. SCHEMATIC DIAGRAM – BD Board – • See page 32 for Waveforms. • See page 32 for IC Block Diagrams. (Page 29) • Voltages and waveforms are dc with respect to ground under no-signal conditions. no mark : CD PLAY The components identified by mark 0 or dotted Les composants identifiés par une marque 0 sont line with mark 0 are critical for safety.
  • Page 9 HTC-NX1 • Voltages are dc with respect to ground under no-signal conditions. no mark : CD PLAY 7-5. SCHEMATIC DIAGRAM – CD MOTOR/SENSOR Section – • See page 33 for IC Block Diagram. (Page 29) (Page 29)
  • Page 10 HTC-NX1 7-7. SCHEMATIC DIAGRAM – AUDIO Board – • See page 33 for IC Block Diagram. PB EQ AMP (PLAYBACK) (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 PB LEVEL (R)
  • Page 11 HTC-NX1 7-8. PRINTED WIRING BOARD – LEAF SW Board – • See page 19 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 REC) (DECK A 120/70) (DECK A HALF) (Page 27) 7-9.
  • Page 12 HTC-NX1 7-11. SCHEMATIC DIAGRAM – MAIN Board (1/2) – (Page 25) (Page 26) (Page 29) • Voltages are dc with respect to ground under no-signal conditions. no mark : CD PLAY The components identified by mark 0 or dotted Les composants identifiés par une marque 0 sont ) : TAPE PLAYBACK (DECK A) line with mark 0 are critical for safety.
  • Page 13 HTC-NX1 7-12. SCHEMATIC DIAGRAM – MAIN Board (2/2) – • See page 32 for Waveform. (Page 28) (Page 31) (Page 23) (Page 23) (Page 31) (Page 31) (Page 21) • Voltages and waveforms are dc with respect to ground ] : TAPE PLAYBACK (DECK B) 〈〈...
  • Page 14 HTC-NX1 7-14. SCHEMATIC DIAGRAM – PANEL Section – (Page 29) (Page 29) (Page 29) • Voltages are dc with respect to ground under no-signal conditions. no mark : CD PLAY...

  • Page 15: Cd Mechanism Deck Section

    (3) CD MECHANISM DECK SECTION-1 (CDM53D-K1BD33) M702 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 4-218-253-01 SCREW (M2.6), +BVTP 4-214-129-01 COVER * 152 1-671-508-21 LOAD MOTOR BOARD 4-211-235-01 BELT (COMMUNICATION) 4-220-261-01 GEAR (EJECT) 4-211-236-01 BELT (LOADING) * 154 1-671-502-21 INT/COUNT SW BOARD 4-220-278-01 PULLEY (MODE)
  • Page 16 (4) CD MECHANISM DECK SECTION-2 (CDM53D-K1BD33) not supplied not supplied S707 not supplied M701 BU-K1BD33 supplied supplied Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 4-985-672-01 SCREW (+PTPWH M2.6), FLOATING 4-220-275-01 GEAR (CHUCKING) 4-220-933-01 INSULATOR 4-211-245-01 SPRING, COMPRESSION 4-213-487-53 TRAY (SUB) * 226 1-671-507-21 CLAMP MOTOR BOARD...
  • Page 17 (5) CD BASE UNIT SECTION (BU-K1BD33) not supplied not supplied not supplied 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.

  • Page 18: Tape Mechanism Deck Section-1 (Tcm-230Awr2)

    (6) TAPE MECHANISM DECK SECTION-1 (TCM-230AWR2) HP101 HRPE101 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 3-376-464-11 SCREW (+PTT 2.6X6), GROUND POINT 3-016-565-01 BASE (PINCH LEVER REV) 3-036-914-01 RIVET 3-026-892-01 SPRING (CASSETTE), LEAF 3-016-574-11 SPRING (HEAD), TENSION * 409 A-2007-731-A AUDIO BOARD, COMPLETE X-3374-156-4 PINCH LEVER (REV) ASSY...

  • Page 19: Tape Mechanism Deck Section-2 (Tcm-230Awr2)

    (7) TAPE MECHANISM DECK SECTION-2 (TCM-230AWR2) Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark * 451 X-3374-214-4 CHASSIS ASSY, MAIN A-2004-629-A MECHANICAL BLOCK ASSY 3-016-570-01 BELT (CAPSTAN) 3-016-566-01 SLIDER, REVERSE 3-016-569-01 BELT (TENSION) * 461 A-2007-732-A LEAF SW BOARD, COMPLETE 3-017-360-01 BRACKET (MOTOR) 3-016-575-11 SPRING, TORSION X-3376-497-3 FLYWHEEL (FWD) ASSY...
  • Page 20 SECTION 9 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 parts list may be different from the parts speci- are seldom required for routine service.
  • Page 21 AUDIO Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R612 1-249-409-11 CARBON 1/4W 0 R621 1-212-851-00 FUSIBLE 1/4W F C157 1-163-009-11 CERAMIC CHIP 0.001uF 0 R622 1-212-851-00 FUSIBLE 1/4W F C159 1-163-019-00 CERAMIC CHIP 0.0068uF 10% R623 1-249-432-11 CARBON 1/4W...
  • Page 22 CLAMP MOTOR CONNECTOR IN SW INT/COUNT SW LEAF SW Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark < RESISTOR > R147 1-216-069-00 METAL CHIP 6.8K 1/10W R148 1-216-001-00 METAL CHIP 1/10W R707 1-249-424-11 CARBON 3.9K 1/4W R149 1-216-001-00 METAL CHIP 1/10W...
  • Page 23 LEAF SW LOAD MOTOR MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R1008 1-249-417-11 CARBON 1/4W C112 1-126-925-11 ELECT 470uF C118 1-216-916-11 ELECT 1000uF 6.3V < VARIABLE RESISTOR > C119 1-161-494-00 CERAMIC 0.022uF RV1001 1-241-785-11 RES, ADJ, CARBON 10K C120 1-164-159-11 CERAMIC 0.1uF...
  • Page 24 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C871 1-164-159-11 CERAMIC 0.1uF Q331 8-729-118-00 TRANSISTOR 2SB1116-TP-LK C872 1-126-925-11 ELECT 470uF Q332 8-729-900-80 TRANSISTOR BA1A4M-TP C873 1-104-665-11 ELECT 100uF Q333 8-729-118-00 TRANSISTOR 2SB1116-TP-LK C876 1-104-665-11 ELECT 100uF Q334 8-729-900-80 TRANSISTOR BA1A4M-TP...
  • Page 25 MAIN OUT SW PANEL Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R142 1-249-429-11 CARBON 1/4W R334 1-249-415-11 CARBON 1/4W R143 1-249-429-11 CARBON 1/4W R335 1-249-421-11 CARBON 2.2K 1/4W R144 1-249-411-11 CARBON 1/4W R145 1-249-429-11 CARBON 1/4W R336 1-249-437-11 CARBON...
  • Page 26 PANEL Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R213 1-249-407-11 CARBON 1/4W < LED > R214 1-249-407-11 CARBON 1/4W R215 1-249-407-11 CARBON 1/4W D201 8-719-076-15 LED SELS6B14C-TP6 (KEY ILLUMINATION) D202 8-719-076-15 LED SELS6B14C-TP6 (KEY ILLUMINATION) R216 1-249-410-11 CARBON 1/4W...
  • Page 27 PANEL TC-A PANEL TC-B SENSOR SENSOR 2 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 1-674-773-11 PANEL TC-A BOARD 1-773-170-11 WIRE (FLAT TYPE) (21 CORE) 1-773-004-11 WIRE (FLAT TYPE) (15 CORE) **************** < RESISTOR > 1-773-044-11 WIRE (FLAT TYPE) (17 CORE) (16cm) 0 253 8-820-026-03 OPTICAL PICK-UP KSM-213BFN/C2NP R246...
  • Page 28 http://servis-manual.com/...
  • Page 29 SECTION 4 TEST MODE [CD Delivery Mode] 5. To release from these mode, press three buttons in the same • Execute only if connected to the HTC-NX1. manner as step 2, or remove the power cord. • This mode moves the optical pick-up to the position durable to [MC Hot Reset] vibration.
  • Page 30 [Aging Mode] • Display at an error occurred • Execute only if connected to the HTC-NX1. 1) Display of the error count [ENTER] [POWER SAVE/DEMO] This mode can be used for operation check of CD section and tape (1) Press three buttons of [GROOVE] deck section.
  • Page 31 3. Tape Deck Section • The sequence during the aging mode is following as below. • If an error occurred, stop display that step. Aging mode sequence (Tape deck section) : Rewind the tape A and B “TAPE A AG-1” Shut off FWD play the tape A “TAPE A AG-2”...
  • Page 32 STR-NX1/NX3 5-2. SCHEMATIC DIAGRAM – MAIN Board (1/3) – (Page (Page (Page (Page 13)
  • Page 33 STR-NX1/NX3 5-3. SCHEMATIC DIAGRAM – MAIN Board (2/3) – • See page 11 for Waveforms. (Page 12) (Page 23) (Page 14)
  • Page 34 STR-NX1/NX3 5-4. SCHEMATIC DIAGRAM – MAIN Board (3/3) – • See page 11 for IC Block Diagram. • Semiconductor Location Ref. No. Location Ref. No. Location IC921 D141 D216 D501 Q112 D502 Q113 D503 Q114 D504 Q162 D505 Q163 D506 Q164 Q191 G-11...
  • Page 35 STR-NX1/NX3 5-7. SCHEMATIC DIAGRAM – SURROUND AMP Board – (NX3) (Page 12) (Page 19) 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.
  • Page 36 STR-NX1/NX3 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 5-9.
  • Page 37 STR-NX1/NX3 5-11. SCHEMATIC DIAGRAM – PANEL Section – (Page 14) (Page 14)
  • Page 38 STR-NX1/NX3 5-13. SCHEMATIC DIAGRAM – TRANSFORMER Section – (Page 19) (Page 14) (Page 13) (Page 14) 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.
  • Page 39 SECTION 7 BACK LIGHT MAIN 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.
  • Page 40 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C291 1-162-286-31 CERAMIC 220PF * CN111 1-564-506-11 PLUG, CONNECTOR 3P (NX3) CN121 1-784-774-11 CONNECTOR, FFC 13P C292 1-162-286-31 CERAMIC 220PF (US, CND, TH, KR, AUS) (NX3) CN121 1-784-776-11 CONNECTOR, FFC 15P (AEP, UK, MY, SP, JE) C293 1-162-286-31 CERAMIC...
  • Page 41 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark J102 1-785-009-11 JACK, PIN 6P (DVD 5.1CH INPUT: FRONT, R122 1-249-421-11 CARBON 2.2K 1/4W REAR, CENTER, WOOFER) (NX3) R123 1-249-441-11 CARBON 100K 1/4W J191 1-774-785-11 JACK, PIN 1P (SUPER WOOFER OUT) R124 1-249-429-11 CARBON 1/4W...
  • Page 42 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R265 1-247-883-00 CARBON 150K 1/4W R418 1-260-089-11 CARBON 1/2W (NX3) (NX1: AEP, UK) R267 1-249-441-11 CARBON 100K 1/4W R418 1-260-090-11 CARBON 1/2W (NX3) (EXCEPT NX1: AEP, UK) R431 1-249-421-11 CARBON 2.2K...
  • Page 43 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R534 1-247-807-31 CARBON 1/4W (US, CND, AEP, UK) R901 1-247-843-11 CARBON 3.3K 1/4W R535 1-249-429-11 CARBON 1/4W R902 1-249-415-11 CARBON 1/4W R536 1-249-417-11 CARBON 1/4W R903 1-249-383-11 CARBON 1/6W R905 1-249-419-11 CARBON...
  • Page 44 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C856 1-128-560-11 ELECT 22uF 100V < DIODE > C857 1-128-582-11 ELECT 10uF 100V C858 1-136-495-11 FILM 0.068uF D802 8-719-911-19 DIODE 1SS133T-72 D821 8-719-911-19 DIODE 1SS133T-72 C859 1-136-495-11 FILM 0.068uF D831 8-719-911-19 DIODE 1SS133T-72...
  • Page 45 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R874 1-260-076-11 CARBON 1/2W R812 1-260-076-11 CARBON 1/2W (NX3: AEP, UK) (AEP, UK) R875 1-260-076-11 CARBON 1/2W R813 1-260-076-11 CARBON 1/2W (NX3: AEP, UK) (AEP, UK) R876 1-260-076-11 CARBON 1/2W R814 1-249-437-11 CARBON...
  • Page 46 PANEL Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark A-4426-226-A PANEL BOARD, COMPLETE < GROUND TERMINAL > (NX1: US, CND, AEP, UK) A-4426-249-A PANEL BOARD, COMPLETE (NX1: MY, SP, KR, EPT601 1-537-770-21 TERMINAL BOARD, GROUND EPT602 1-537-770-21 TERMINAL BOARD, GROUND A-4426-258-A PANEL BOARD, COMPLETE (NX3: US, CND, AEP, UK) <...
  • Page 47 PANEL SUB TRANS Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R633 1-249-411-11 CARBON 1/4W S620 1-762-875-21 SWITCH, TACTILE (+ M) (NX3) S621 1-762-875-21 SWITCH, TACTILE (– m) R636 1-249-411-11 CARBON 1/4W R637 1-249-411-11 CARBON 1/4W S622 1-762-875-21 SWITCH, TACTILE (ENTER) (US, CND, AEP, UK)

  • Page 48: Surround Amp

    SURROUND AMP TRANS Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark A-4426-260-A SURROUND AMP BOARD, COMPLETE (NX3) R103 1-249-411-11 CARBON 1/4W 0 R107 1-212-881-11 FUSIBLE 1/4W F ****************************** 0 R108 1-220-755-11 METAL 0.22 < CAPACITOR > R109 1-260-076-11 CARBON 1/2W...
  • Page 49 TRANS Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 1-784-731-11 CONNECTOR, FFC 9P 0 F962 0 104 1-533-311-11 FUSE, GLASS CYLINDRICAL 8A/125V 1-575-651-11 CORD, POWER (NX3: MY, SP) (NX1: US, CND) 0 104 1-575-651-21 CORD, POWER (NX1: AEP, UK, MY, SP/NX3: 0 F962 1-533-949-31 FUSE, CYLINDRICAL T8AL/250V AEP, UK)
  • Page 50 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C207 1-136-165-00 FILM 0.1uF C252 1-136-165-00 FILM 0.1uF (NX3) (NX3) C208 1-136-165-00 FILM 0.1uF (NX3) C253 1-136-161-00 FILM 0.047uF (NX3) C210 1-124-465-00 ELECT 0.47uF C254 1-136-161-00 FILM 0.047uF (NX3) (NX3)

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