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Sony STR-NX1 Service Manual
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Sony STR-NX1 Service Manual

Tuner/amplifier
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SERVICE MANUAL
STR-NX1/NX3 are the
Tuner and Amplifier
Section in HMC-NX1/NX3AV.
MICROFILM
STR-NX1/NX3
Photo: STR-NX3 E model
SPECIFICATIONS
US Model
Canadian Model
AEP Model
UK Model
E Model
Australian Model
Tourist Model
– Continued on next page –
TUNER/AMPLIFIER

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Summary of Contents for Sony STR-NX1

  • Page 1 STR-NX1/NX3 SERVICE MANUAL US Model Canadian Model AEP Model UK Model E Model Australian Model Tourist Model STR-NX1/NX3 are the Tuner and Amplifier Photo: STR-NX3 E model Section in HMC-NX1/NX3AV. SPECIFICATIONS – Continued on next page – TUNER/AMPLIFIER MICROFILM...

  • Page 2: Table Of Contents

    DE FONCTIONNEMENT. NE REMPLACER CES COM- SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB- POSANTS QUE PAR DES PIÈCES SONY DONT LES LISHED BY SONY. NUMÉROS SONT DONNÉS DANS CE MANUEL OU DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.

  • Page 3: Servicing Notes

    SECTION 1 SERVICING NOTES SAFETY CHECK-OUT • MODEL IDENTIFICATION After correcting the original service problem, perform the follow- – Rear Panel – ing safety check before releasing the set to the customer: Check the antenna terminals, metal trim, “metallized” knobs, PART No.

  • Page 4: General

    SECTION 2 GENERAL • LOCATION OF CONTROLS 1 TIMER indicator (US, Canadian, AEP and UK models) – Front Panel – 2 DISPLAY button 3 ?/1 button and indicator 8 q; qs qf qh 4 POWER SAVE/DEMO (STANDBY) button 9 qa qd qg 5 –...
  • Page 5 This section is extracted from instruction manual.

  • Page 6: Disassembly

    SECTION 3 DISASSEMBLY Note: Follow the disassembly procedure in the numerical order given. CASE 2 screw (BVTP3 × 10) 3 case 1 two screws (case 3 TP2) 1 two screws (case 3 TP2) FRONT PANEL ASS’Y 1 flat wire (CN132) 4 front panel ass’y 3 claw 1 flat wire...
  • Page 7 BACK PANEL ASS’Y 2 connector (CN173) 1 flat wire (CN1) 5 back panel ass’y 3 seven screws (BVTP3 × 10) 4 claw 3 four screws (BVTP3 × 10) 4 claw MAIN BOARD 1 connector (CN111) 1 two connectors (CN161, 181) 2 two screws (BVTP3 ×...

  • Page 8: Test Mode

    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 9 [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 10 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 11: Diagrams

    SECTION 5 DIAGRAMS 5-1. NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS • Circuit Boards Location Note on Printed Wiring Board: Note on Schematic Diagram: SUB TRANS board • X : parts extracted from the component side. • All capacitors are in µF unless otherwise noted. pF: µµF (US, Canadian, AEP, UK) •...

  • Page 12: Schematic Diagram - Main Board (1/3)

    STR-NX1/NX3 5-2. SCHEMATIC DIAGRAM – MAIN Board (1/3) – (Page (Page (Page (Page 13)

  • Page 13: Schematic Diagram – Main Board (2/3)

    STR-NX1/NX3 5-3. SCHEMATIC DIAGRAM – MAIN Board (2/3) – • See page 11 for Waveforms. (Page 12) (Page 23) (Page 14)

  • Page 14: Schematic Diagram - Main Board (3/3)

    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 Q113 D502 D503 Q114 D504 Q162 D505 Q163 D506...

  • Page 15: Printed Wiring Board - Main Board

    STR-NX1/NX3 5-5. PRINTED WIRING BOARD – MAIN Board – • See page 11 for Circuit Boards Location. (Page 22) (Page 22) (Page (Page 22) (Page (Page 16) (Page 18)

  • Page 16: Printed Wiring Board - Surround Amp Board

    STR-NX1/NX3 5-6. PRINTED WIRING BOARD – SURROUND AMP Board – • See page 11 for Circuit Boards Location. • Semiconductor Location Ref. No. Location D101 D102 D151 D191 IC101 Q101 Q103 Q104 Q151 Q181 (Page 15) (Page 18)

  • Page 17: Schematic Diagram - Surround Amp Board

    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.

  • Page 18: Printed Wiring Board - Pa Board

    STR-NX1/NX3 5-8. PRINTED WIRING BOARD – PA Board – • See page 11 for Circuit Boards Location. (Page 15) (Page • Semiconductor Location Ref. No. Location Ref. No. Location Ref. No. Location IC801 D802 Q829 D821 Q830 D831 Q801 Q831...

  • Page 19: Schematic Diagram - Pa Board

    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 20: Printed Wiring Boards - Panel Section

    STR-NX1/NX3 5-10. PRINTED WIRING BOARDS – PANEL Section – • See page 11 for Circuit Boards Location. (Page 15) • Semiconductor Location Ref. No. Location D631 D632 D633 D636 D637 D638 D643 D644 D645 D646 D647 D648 IC701 Q631 Q632...

  • Page 21: Schematic Diagram - Panel Section

    STR-NX1/NX3 5-11. SCHEMATIC DIAGRAM – PANEL Section – (Page 14) (Page 14)

  • Page 22: Printed Wiring Boards - Transformer Section

    STR-NX1/NX3 5-12. PRINTED WIRING BOARDS – TRANSFORMER Section – • See page 11 for Circuit Boards Location. (MY, SP, JE / NX3:US, CND) (NX1:US, CND) (Page 15) (Page 15) (Page 18) (Page 15) • Semiconductor Location Ref. No. Location D952...

  • Page 23: Schematic Diagram - Transformer Section

    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.

  • Page 24: Ic Pin Function Description

    5-14. IC PIN FUNCTION DESCRIPTION Pin No. Pin Name Description • MAIN BOARD IC501 M30622MA-A12FP (SYSTEM CONTROLLER ) CLOCK OUT Output terminal for the clock signal check Not used (open) Pin No. Pin Name Description VC L+R/L–R Virtual cinema L+R/L–R selection signal output terminal Not used (open) XHOLD Not used (fixed at “L”) Spectrum analyzer drive signal input from the spectrum analyzer band-pass filter (IC401)
  • Page 25 Pin No. Pin Name Description LED drive signal output of the DVD 5.1CH indicator (D632) “H”: LED on LED 5.1CH (Used for the STR-NX3 only) LED GROOVE LED drive signal output of the GROOVE indicator (D631) “H”: LED on Spectrum analyzer drive (low frequency) signal input from the spectrum analyzer band-pass filter BPF 1 (IC401) (for 100 Hz) Spectrum analyzer drive (low and middle frequency) signal input from the spectrum analyzer...

  • Page 26: Exploded Views

    SECTION 6 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.
  • Page 27 (2) FRONT PANEL SECTION LCD601 supplied supplied supplied with S652 supplied supplied with S651 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark X-4951-814-1 KNOB (VOL) ASSY 4-221-369-01 HOLDER X-4951-831-1 JOG ASSY, KNOB 1-674-798-11 BACK LIGHT BOARD X-4951-812-1 PANEL ASSY, FRONT (NX1: AEP, UK) 1-769-908-11 WIRE (FLAT TYPE) (9 CORE) X-4951-815-1 PANEL ASSY, FRONT (NX1: E, JE)
  • Page 28 (3) CHASSIS SECTION not supplied US, CND, AEP, UK supplied TR951 supplied not supplied MY, SP US, CND TH, JE AEP, UK, E...
  • Page 29 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 1-674-803-11 TRANS BOARD A-4426-230-A MAIN BOARD, COMPLETE (NX1: AEP, UK) A-4426-238-A PA BOARD, COMPLETE (NX1: AEP, UK) A-4426-242-A MAIN BOARD, COMPLETE (NX1: US, CND) A-4426-246-A PA BOARD, COMPLETE (NX1: US, CND) A-4426-251-A MAIN BOARD, COMPLETE (NX1: MY, SP) A-4426-255-A PA BOARD, COMPLETE (NX1: MY, SP, KR, JE) A-4426-261-A MAIN BOARD, COMPLETE (NX3: AEP, UK)

  • Page 30: Electrical Parts List

    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 31 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)
  • Page 32 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 33 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 34 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 35 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 36 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 37 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 38 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 39 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 40 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 41 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 42 STR-NX1/NX3 Sony Corporation 9-928-980-11 99H0588-1 Home Audio Company Printed in Japan © 1999. 8 Published by Quality Assurance Dept.

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