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Sony CX-JT9 Service Manual
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Sony CX-JT9 Service Manual

Sony CX-JT9 Service Manual

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SERVICE MANUAL
Ver 1.0 2003.05
CX-JT9 is the tuner, amplifier, cassette deck and
CD player section in JAX-PK9.
TUNER
FM tuning range
87.5 MHz to 108 MHz
FM usable sensitivity (IHF)
13.2 dBf
FM antenna terminal
75 ohms (unbalanced)
AM tuning range
530 kHz to 1710 kHz (10 kHz step)
531 kHz to 1710 kHz (9 kHz step)
AM usable sensitivity
350 µV/m
AM antenna
Loop antenna
AMPLIFIER
Power output
Front:
Rated: 156 W + 156 W (6 ohms,
T.H.D. 1 %, 1 kHz)
Reference: 195 W + 195 W (6 ohms,
T.H.D. 10 %, 1 kHz)
Front and Surround:
320 W + 200 W (Front Speaker: 6
ohms, Surround Speaker: 8 ohms,
T.H.D. 10 %, 1 kHz/DIN AUDIO)
Total harmonic distortion
0.08 % (98 W, 1 kHz, 6 ohms, DIN
AUDIO)
Input
MD (VIDEO): 1.5 V
MIC: 1 mV (600 ohms)
Outputs
FRONT SPEAKER: 6 ohms or more
SURROUND SPEAKER: 8 ohms or
more
PHONES: 32 ohms or more
Sony Corporation
9-877-262-01
2003E05-1
Home Audio Company
C 2003.05
Published by Sony Engineering Corporation
Model Name Using Similar Mechanism
CD Mechanism Type
CD
Base Unit Name
Section
Optical Block Name
Optical Pick-up Name
Model Name Using Similar Mechanism
Tape deck
Section
Tape Transport Mechanism Type
SPECIFICATIONS
CASSETTE DECK
Track format
4 tracks, 2 channels stereo
Frequency response
50 Hz – 8 kHz
Recording system
AC bias
Heads
Deck A: playback x 1
Deck B: recording/playback x 1,
erase x 1
CD PLAYER
Laser
Semiconductor laser
(λ = 780 nm)
Emission duration:
continuous
D/A converter
1 bit dual
Signal-to-noise ratio
85 dB (1 kHz, 0 dB)
Harmonic distortion
0.05 % (1 kHz, 0 dB)
GENERAL
Power requirements
120 V/220 V/230 V-240 V AC
(Switchable), 50 Hz/60 Hz
Power consumption
255 W
Power consumption
With ECO mode on: 0.25 W
in standby mode
With ECO mode off: 28 W
Dimensions (W x H x D)
280 x 328 x 446 mm
Weight
11.2 kg
Specifications and external appearance are subject to change
without notice.
CX-JT9
NEW
CDM74F-K6BD71A
BU-K6BD71A
KSM-213DCP
KSS-213D
NEW
CWM43RR23
COPYRIGHT
Check copyright laws relevant to recordings from discs, tuner
or tape for the country where the unit is to be used.
Licensed by BBE Sound, Inc. under USP4638258, 5510752
and 5736897.
COMPACT DISC DECK RECEIVER
E Model

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  • Page 1 All manuals and user guides at all-guides.com CX-JT9 SERVICE MANUAL E Model Ver 1.0 2003.05 CX-JT9 is the tuner, amplifier, cassette deck and CD player section in JAX-PK9. Model Name Using Similar Mechanism CD Mechanism Type CDM74F-K6BD71A Base Unit Name...
  • Page 2 LINE WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB- LISHED BY SONY.

  • Page 3: Table Of Contents

    All manuals and user guides at all-guides.com CX-JT9 TABLE OF CONTENTS SERVICING NOTES 6-25. Printed Wiring Board – PANEL Board – ...... 46 ..........4 6-26. Schematic Diagram – PANEL Board – ......47 6-27. Printed Wiring Board – TRANSFORMER Board –...

  • Page 4: Servicing Notes

    All manuals and user guides at all-guides.com CX-JT9 SECTION 1 SERVICING NOTES • MODEL IDENTIFICATION NOTES ON HANDLING THE OPTICAL PICK-UP – Back Panel – BLOCK OR BASE UNIT The laser diode in the optical pick-up block may suffer electro- static break-down because of the potential difference generated by the charged electrostatic load, etc.
  • Page 5 All manuals and user guides at all-guides.com CX-JT9 HOW TO OPEN THE DISC TRAY WHEN POWER SWITCH TURNS OFF. 1 Remove the case (side-L). 2 Turn the loading gear in the direction of arrow A . 3 Pull-out the disc tray.
  • Page 6 All manuals and user guides at all-guides.com CX-JT9 SERVICE POSITION – CD mechanism deck – main board (CN312) BD board (CN710) Connect wire (flat type) (19 core) to main board (CN312) and BD board (CN710). – Tape mechanism deck –...

  • Page 7: General

    All manuals and user guides at all-guides.com CX-JT9 SECTION 2 This section is extracted from instruction manual. GENERAL • LOCATION OF CONTROLS 7 DISC DIRECT PLAY 1-3 # BASS 1 DISC CHANGE/DISC SKIP Main unit: front Rotates the CD trays.
  • Page 8 All manuals and user guides at all-guides.com CX-JT9 Buttons with the same or similar names with the main unit 3 r, t 9 FUNCTION Remote control basically have the same function. CD: selects a track. Switches the active function among CD, TAPE, TUNER Refer to the pages indicated in parentheses for details.

  • Page 9: Disassembly

    All manuals and user guides at all-guides.com CX-JT9 SECTION 3 DISASSEMBLY • This set can be disassembled in the order shown below. 3-1. DISASSEMBLY FLOW Note 1: The process described in can be performed in any order. Note 2: Without completing the process described in , the next process can not be performed.

  • Page 10: Case (Side-L/R)

    All manuals and user guides at all-guides.com CX-JT9 Note: Follow the disassembly procedure in the numerical order given. 3-2. CASE (SIDE-L/R) 6 two screws 0 case (side-L) (BVTP3 × 1 two screws (BVTP3 × 7 three screws (case3 TP2) 5 case (side-R)

  • Page 11: Tray Panel

    All manuals and user guides at all-guides.com CX-JT9 3-4. TRAY PANEL 1 Turn the loading gear in the direction of arrow A . 2 Pull-out the disc table. 3 four claws 4 tray panel 3-5. CD MECHANISM DECK (CDM74F-K6BD71A) 6 CD mechanism deck...

  • Page 12: Front Panel Section

    All manuals and user guides at all-guides.com CX-JT9 3-6. FRONT PANEL SECTION 4 connector (CN203) 3 connector (CN202) 5 wire (flat type) (9 core) (CN311) 2 connector (CN310) 1 wire (flat type) (31 core) (CN304) 7 front panel section 6 three screws (BVTP3 ×...

  • Page 13: Rear Cabinet Section

    All manuals and user guides at all-guides.com CX-JT9 3-8. REAR CABINET SECTION 3 two screws (BVTP3 × 4 cover (duct) 5 five screws (BVTP3 × 1 wire (flat type) (11core) 6 rear cabinet section 2 connector (CN303) 3-9. MAIN BOARD...

  • Page 14: Power Board

    All manuals and user guides at all-guides.com CX-JT9 3-10. POWER BOARD 2 two screws 3 two screws (BVIT3B+3-8R) (BVIT3B+3-8R) 1 connector (CN902) 4 power board 3-11. TRANSFORMER BOARD 5 four screws (ITC+4-10R) 2 screw (BVTT3 × 1 screw (BVTP3 ×...

  • Page 15: Motor (Tb) Board

    All manuals and user guides at all-guides.com CX-JT9 3-12. TABLE ASSY 5 two claws 4 hook 3 wire (flat type) (5 core) (CN702) 1 Turn the loading gear 2 Pull-out the table assy. in the direction of arrow A .

  • Page 16: Motor (Ld) Board

    All manuals and user guides at all-guides.com CX-JT9 3-14. MOTOR (LD) BOARD 3 two screws (BTTP M2.6) 4 motor (LD) board 2 connector (CN704) 1 belt (loading) 3-15. BASE UNIT (BU-K6BD71A) 5 base unit (BU-K6BD71A) 4 four insulators 3 four coil springs...

  • Page 17: Motor Gear Assy (Sled) (M701), Bd Board

    All manuals and user guides at all-guides.com CX-JT9 3-16. MOTOR GEAR ASSY (SLED) (M701), BD BOARD 7 gear (A) 6 claw 8 gear (B) 2 two screws (P2 × 3) 5 wire (flat type) (16 core) (CN708) qa BD board...

  • Page 18: Test Mode

    All manuals and user guides at all-guides.com CX-JT9 SECTION 4 TEST MODE [COLD RESET] [CD TRAY LOCK MODE] • The cold reset clears all data including preset data stored in the • This mode is used to unable to take sample disc out of tray in RAM to initial conditions.
  • Page 19 All manuals and user guides at all-guides.com CX-JT9 [AGING MODE] 3. Tape Deck Section The sequence during the aging mode is following as below. • This mode can be used for operation check of CD section and If an error occurred, stop display that step.
  • Page 20 All manuals and user guides at all-guides.com CX-JT9 [GC TEST MODE] [MODEL, DESTINATION AND VERSION DISPLAY] • This mode is used to check the fluorescent indicator tube, LED • This mode is used to check the model, destination and software and key.

  • Page 21: Cd Section

    All manuals and user guides at all-guides.com CX-JT9 SECTION 5 ELECTRICAL ADJUSTMENTS Note: Clear RF signal waveform means that the shape “ ◊ ” can be clearly CD SECTION distinguished at the center of the waveform. Note: RF signal waveform 1.

  • Page 22: Diagrams

    All manuals and user guides at all-guides.com CX-JT9 SECTION 6 DIAGRAMS 6-1. BLOCK DIAGRAM – CD Section – RF AMP, FOCUS/TRACKING ERROR AMP, DIGITAL SIGNAL PROCESSOR, DIGIRAL SERVO PROCESSOR, • R-ch is omitted due to same as L-ch. DIGITAL FILTER, D/A CONVERTER •...

  • Page 23: Block Diagram - Tuner/Tape/Panel Section

    All manuals and user guides at all-guides.com CX-JT9 6-2. BLOCK DIAGRAM – TUNER/TAPE/PANEL Section – DECK A/B SELECT SWITCH, REC/PB EQ AMP IC201 (SUFFIX-11) IC201 (SUFFIX-13) AIN (L) L-CH TAI (L) MUTE EQOUT (L) BIN (L) PB-OUT (L) TAPE-L TAPE-L, REC-L...

  • Page 24: Block Diagram - Amp/Power Supply Section

    All manuals and user guides at all-guides.com CX-JT9 6-3. BLOCK DIAGRAM – AMP/POWER SUPPLY Section – MIC LEVEL MIC, SA (Page 23) Q401 J401 VR401 D401 MIC MIXING D402 SWITCHING MIC AMP MIC AMP OUTPUT LEVEL IC401 (1/2) IC401 (2/2)

  • Page 25: Note For Printed Wiring Boards And Schematic Diagrams

    All manuals and user guides at all-guides.com CX-JT9 6-4. NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS • Circuit Boards Location Note on Printed Wiring Board: Note on Schematic Diagram: SENSOR board • X : parts extracted from the component side.

  • Page 26: Printed Wiring Board - Bd Board

    All manuals and user guides at all-guides.com CX-JT9 6-5. PRINTED WIRING BOARD – BD Board – • :Uses unleaded solder. See page 25 for Circuit Boards Location. BD BOARD (COMPONENT SIDE) OPTICAL PICK-UP BLOCK BD BOARD (KSM-213DCP) M702 (SPINDLE) (CONDUCTOR SIDE)

  • Page 27: Schematic Diagram - Bd Board

    All manuals and user guides at all-guides.com CX-JT9 6-6. SCHEMATIC DIAGRAM – BD Board – • • See page 52 for IC Block Diagrams. See page 52 for Waveforms. R732 IC803 MM1571J R731 2.2k R721 R722 C753 R834 R707 C709...

  • Page 28: Printed Wiring Boards - Changer Section

    All manuals and user guides at all-guides.com CX-JT9 6-7. PRINTED WIRING BOARDS – CHANGER Section – • :Uses unleaded solder. See page 25 for Circuit Boards Location. SW BOARD SENSOR BOARD CN751 IC731 (SUFFIX-11) (SUFFIX-13) MAIN BOARD MAIN BOARD S751...

  • Page 29: Schematic Diagram - Changer Section

    All manuals and user guides at all-guides.com CX-JT9 6-8. SCHEMATIC DIAGRAM – CHANGER Section – • See page 52 for IC Block Diagrams. LOADING MOTOR DRIVE IC701 BA6956AN R702 R701 CN721 CN704 LM-2 LM-2 D701 M751 C751 LM-1 LM-1 MTZJ-T-77 0.01...
  • Page 30 All manuals and user guides at all-guides.com CX-JT9 6-9. SCHEMATIC DIAGRAM – MAIN Board (1/4) (Suffix-11) – • See page 52 for IC Block Diagram. (1/4) CN101 VM+9V D102 10EDB40-TB3 TUNER UNIT (COAXIAL) SUPPLIED WITH TUNED TUNED ANTENNA C101 C310...

  • Page 31: Schematic Diagram - Main Board (1/4) (Suffix-11)

    All manuals and user guides at all-guides.com CX-JT9 6-10. SCHEMATIC DIAGRAM – MAIN Board (2/4) (Suffix-11) – • • See page 52 for IC Block Diagram. See page 52 for Waveforms. C268 (2/4) R268 R266 R220 4.7k 4.7k C248 R286...

  • Page 32: Main Board (3/4) (Suffix-11)

    All manuals and user guides at all-guides.com CX-JT9 6-11. SCHEMATIC DIAGRAM – MAIN Board (3/4) (Suffix-11) – • See page 52 for IC Block Diagram. (Page 30) (3/4) R375 4.7k R339 R331 3.3k R340 5.6k R478 2.2k R403 C316 C330...

  • Page 33: Schematic Diagram - Main Board (4/4) (Suffix-11)

    All manuals and user guides at all-guides.com CX-JT9 6-12. SCHEMATIC DIAGRAM – MAIN Board (4/4) (Suffix-11) – (Page 30) (Page 31) (4/4) C363 MIC10V R309 R313 100k CN304 FIL2 FIL1 D-GND -VFL -VFL EVER+10V EVER 10V BUFFER MIC+10V IC304 MIC 10V...

  • Page 34: Printed Wiring Board - Main Board (Suffix-11)

    All manuals and user guides at all-guides.com CX-JT9 6-13. PRINTED WIRING BOARD – MAIN Board (Suffix-11) – • :Uses unleaded solder. See page 25 for Circuit Boards Location. • Semiconductor Location ANTENNA Ref. No. Location FM 75Ω (COAXIAL) LOOP D102...

  • Page 35: Printed Wiring Board - Main Board (Suffix-13)

    All manuals and user guides at all-guides.com CX-JT9 6-14. PRINTED WIRING BOARD – MAIN Board (Suffix-13) – • :Uses unleaded solder. See page 25 for Circuit Boards Location. • Semiconductor Location ANTENNA Ref. No. Location FM 75Ω D102 C-14 (COAXIAL)

  • Page 36: Schematic Diagram - Main Board (1/4) (Suffix-13)

    All manuals and user guides at all-guides.com CX-JT9 6-15. SCHEMATIC DIAGRAM – MAIN Board (1/4) (Suffix-13) – • See page 52 for IC Block Diagram. (1/4) CN101 FM 75Ω VM+9V D102 10EDB40-TB3 TUNER UNIT (COAXIAL) SUPPLIED WITH TUNED TUNED ANTENNA...

  • Page 37: Schematic Diagram - Main Board (2/4) (Suffix-13)

    All manuals and user guides at all-guides.com CX-JT9 6-16. SCHEMATIC DIAGRAM – MAIN Board (2/4) (Suffix-13) – • • See page 52 for IC Block Diagram. See page 52 for Waveforms. C268 (2/4) R268 R266 R220 4.7k 4.7k C248 R286...

  • Page 38: Schematic Diagram - Main Board (3/4) (Suffix-13)

    All manuals and user guides at all-guides.com CX-JT9 6-17. SCHEMATIC DIAGRAM – MAIN Board (3/4) (Suffix-13) – • See page 52 for IC Block Diagram. (Page 36) (3/4) R375 4.7k R339 R331 3.3k R340 5.6k R478 2.2k R403 C316 C330...

  • Page 39: Schematic Diagram - Main Board (4/4) (Suffix-13)

    All manuals and user guides at all-guides.com CX-JT9 6-18. SCHEMATIC DIAGRAM – MAIN Board (4/4) (Suffix-13) – (Page 36) (Page 37) (4/4) C363 MIC10V R309 R313 100k CN304 FIL2 FIL1 D-GND -VFL -VFL EVER+10V EVER 10V BUFFER MIC+10V IC304 MIC 10V...

  • Page 40: Printed Wiring Board - Power Board - (E51 Model)

    All manuals and user guides at all-guides.com CX-JT9 6-19. PRINTED WIRING BOARD – POWER Board – (E51 model) • :Uses unleaded solder. See page 25 for Circuit Boards Location. (SUFFIX-11) (SUFFIX-13) (SUFFIX-11) (SUFFIX-13) MAIN BOARD MAIN BOARD MAIN BOARD MAIN BOARD...

  • Page 41: Printed Wiring Board - Power Board - (Mx Model)

    All manuals and user guides at all-guides.com CX-JT9 6-20. PRINTED WIRING BOARD – POWER Board – (MX model) • :Uses unleaded solder. See page 25 for Circuit Boards Location. MAIN BOARD MAIN BOARD (Page 35) (Page 35) CN307 CN306 POWER BOARD...

  • Page 42: Schematic Diagram - Power Board (1/2)

    All manuals and user guides at all-guides.com CX-JT9 6-21. SCHEMATIC DIAGRAM – POWER Board (1/2) – (SUFFIX-11) (1/2) CN501 L-OUT SP-GND R-OUT SURR LINK/MATRIX (Page UNREG VM RYB+ RELAY B+ IN-L A-GND IN-R PW-GND VM(AC) (Page VM(AC) O-POWER HOLD 0.22 (SUFFIX-13) 4.7k...

  • Page 43: Schematic Diagram - Power Board (2/2)

    All manuals and user guides at all-guides.com CX-JT9 6-22. SCHEMATIC DIAGRAM – POWER Board (2/2) – (2/2) D503 MC2838 R539 R529 4.7k R541 2.2k R537 D501 R521 MC2836 R543 2.2k 1.8k D510 R559 MC2836 3.9k Q501 C511 Q507 2SD2562 R505...

  • Page 44: Printed Wiring Boards - Cd Button/Headphone/Microphone Boards

    All manuals and user guides at all-guides.com CX-JT9 6-23. PRINTED WIRING BOARDS – CD BUTTON/HEADPHONE/MICROPHONE Boards – • :Uses unleaded solder. See page 25 for Circuit Boards Location. MICROPHONE BOARD HEADPHONE BOARD (SUFFIX-11) C302 MAIN BOARD PANEL CN310 BOARD CN105...

  • Page 45: Schematic Diagram - Cd Button/Headphone/Microphone Boards

    All manuals and user guides at all-guides.com CX-JT9 6-24. SCHEMATIC DIAGRAM – CD BUTTON/HEADPHONE/MICROPHONE Boards – (SUFFIX-11) CN402 CN105 C301 C302 J401 1000p 1000p J221 MIC IN L-OUT PHONES HP-GND (Page 32) MIC OUT R-OUT HP CTL (Page 47) HP CTL...

  • Page 46: Printed Wiring Board - Panel Board

    All manuals and user guides at all-guides.com CX-JT9 6-25. PRINTED WIRING BOARD – PANEL Board – • :Uses unleaded solder. See page 25 for Circuit Boards Location. • Semiconductor Location (Page 44) CD BUTTON Ref. No. Location BOARD CN302 PANEL BOARD...

  • Page 47: Schematic Diagram - Panel Board

    All manuals and user guides at all-guides.com CX-JT9 6-26. SCHEMATIC DIAGRAM – PANEL Board – • • See page 52 for IC Block Diagram. See page 52 for Waveforms. FL901 FLUORESCENT INDICATOR TUBE JR901 R613 R614 R615 R616 R617 R618 R619 2.2k...

  • Page 48: Printed Wiring Board - Transformer Board - (E51 Model)

    All manuals and user guides at all-guides.com CX-JT9 6-27. PRINTED WIRING BOARD – TRANSFORMER Board – (E51 model) • :Uses unleaded solder. See page 25 for Circuit Boards Location. (AC IN) TRANSFORMER BOARD D901 CN901 JW935 D905 D903 JW934 PT902...

  • Page 49: Printed Wiring Board - Transformer Board - (Mx Model)

    All manuals and user guides at all-guides.com CX-JT9 6-28. PRINTED WIRING BOARD – TRANSFORMER Board – (MX model) • :Uses unleaded solder. See page 25 for Circuit Boards Location. TRANSFORMER BOARD (AC IN) D905 D903 PT902 JW934 SUB POWER CN901...

  • Page 50: Schematic Diagram - Transformer Board - (E51 Model)

    All manuals and user guides at all-guides.com CX-JT9 6-29. SCHEMATIC DIAGRAM – TRANSFORMER BOARD – (E51 model) PT901 F902 MAIN POWER TRANSFORMER T2.5AL 250V ∗ NOT REPLACEABLE: BUILT IN TRANSFORMER CN902 F905 T10AL 125V VH(AC) VL(AC) S901 VL(AC) JW905 VH(AC)

  • Page 51: Schematic Diagram - Transformer Board - (Mx Model)

    All manuals and user guides at all-guides.com CX-JT9 6-30. SCHEMATIC DIAGRAM – TRANSFORMER BOARD – (MX model) PT901 F902 MAIN POWER TRANSFORMER T2.5AL 250V ∗ NOT REPLACEABLE: BUILT IN TRANSFORMER F905 T10AL 125V JW918 JW905 CN902 VH(AC) VL(AC) JW906 VL(AC)
  • Page 52 All manuals and user guides at all-guides.com CX-JT9 • Waveforms • IC Block Diagrams – BD Board – – MAIN Board – – PANEL Board – – BD Board – IC721 LC78646E-E 1 IC721 4 (RF) (CD Play Mode) qa Q223 (Base) (REC Mode)
  • Page 53 All manuals and user guides at all-guides.com CX-JT9 – DRIVER Board – IC701, 712 BA6956AN CONTROL LOGIC – MAIN Board – IC201 HA12237F 93/120 PB-NF1 (L) (HIGH/NORM) MUTE 20 TEST MODE 19 IREF AIN (L) 18 GND BIN (L) 17 ALC DET...
  • Page 54 All manuals and user guides at all-guides.com CX-JT9 IC301 M61529FP-D60G 42 41 39 38 37 34 33 32 31 30 TONE CONTROL ELECTRICAL (BASS/MID/TREBLE) VOLUME INPUT BASS BOOST TONE ATT SURROUND VOCAL INTERFACE DPL BUFFER TONE ATT BASS BOOST EXTERNAL...

  • Page 55: Ic Pin Function Description

    All manuals and user guides at all-guides.com CX-JT9 6-31. IC PIN FUNCTION DESCRIPTION • MAIN BOARD IC309 BU2099FV (MULTI CONTROLLER) Pin No. Pin Name Description — Ground terminal — Not used DATA Serial data input from the tape mechanism controller...
  • Page 56 All manuals and user guides at all-guides.com CX-JT9 • MAIN BOARD IC310 BU2099FV ( BASS BOOST CONTROLLER) Pin No. Pin Name Description — Ground terminal — Not used DATA Serial data input from the multi controller CLOCK Serial data transfer clock signal input from the system controller...
  • Page 57 All manuals and user guides at all-guides.com CX-JT9 • PANEL BOARD IC201 BU2099FV (LED DRIVER) Pin No. Pin Name Description — Ground terminal — Not used DATA Serial data input from the system controller CLOCK Serial data transfer clock signal input from the system controller Serial data latch pulse clock signal input from the system controller LED drive signal output of the CD indicator “L”: LED on...
  • Page 58 All manuals and user guides at all-guides.com CX-JT9 • PANEL BOARD IC202 BU2099FV (LED DRIVER, TAPE MECHANISM CONTROLLER) Pin No. Pin Name Description — Ground terminal — Not used DATA Serial data input from the LED driver CLOCK Serial data transfer clock signal input from the system controller Serial data latch pulse clock signal input from the system controller LED drive signal output of the DISC DIRECT PLAY 1 indicator “L”: LED on...
  • Page 59 All manuals and user guides at all-guides.com CX-JT9 • PANEL BOARD IC901 LC8767962B-51F6 (SYSTEM CONTROLLER) Pin No. Pin Name Description O-SYS-MUTE Line muting on/off control signal output terminal “H”: muting on I-BU1924 DI RDS serial data input terminal Not used...
  • Page 60 All manuals and user guides at all-guides.com CX-JT9 Pin No. Pin Name Description Segment drive signal output to the fluorescent indicator tube and deck-B mode detection signal S9/I-B-MODE input from the tape mechanism deck block “L” active Segment drive signal output to the fluorescent indicator tube and recording-proof (reverse...

  • Page 61: Exploded Views

    All manuals and user guides at all-guides.com CX-JT9 SECTION 7 EXPLODED VIEWS NOTE: • -XX and -X mean standardized parts, so they • Items marked “*” are not stocked since they • Abbreviation may have some difference from the original are seldom required for routine service.

  • Page 62: Front Panel Section-1

    All manuals and user guides at all-guides.com CX-JT9 7-2. FRONT PANEL SECTION-1 front panel section-2 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 4-245-125-01 KNOB, ROTARY VOLUME 4-245-141-01 GUIDE, LED GRAPHIC EQUALIZER (R) 4-245-126-01 KNOB, ROTARY JOG...

  • Page 63: Front Panel Section-2

    All manuals and user guides at all-guides.com CX-JT9 7-3. FRONT PANEL SECTION-2 front panel section-3 supplied Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 1-688-545-12 HEADPHONE BOARD 1-688-546-12 CD BUTTON BOARD 3-229-336-01 SCREW, +BVWH TAPPING 1-796-487-41 DECK, MECHANICAL (CWM43RR23)

  • Page 64: Front Panel Section-3

    All manuals and user guides at all-guides.com CX-JT9 7-4. FRONT PANEL SECTION-3 front panel section-4 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 4-245-124-01 KEY, RDS X-4955-414-1 KEY (OPE) ASSY 4-245-122-01 KEY, REC (SURROUND. i-BASS. m. X.bB. x. M)

  • Page 65: Front Panel Section-4

    All manuals and user guides at all-guides.com CX-JT9 7-5. FRONT PANEL SECTION-4 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 4-245-115-01 WINDOW, CASSETTE 4-245-138-01 BOX, CASSETTE (2) 4-245-111-01 PANEL, DOOR 4-245-010-01 SPR-T, BOX CASS R 4-245-110-01 BOX, DOOR...

  • Page 66: Chassis Section-1

    All manuals and user guides at all-guides.com CX-JT9 7-6. CHASSIS SECTION-1 M731 not supplied supplied chassis section-2 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 4-951-620-41 SCREW (2.6X8), +BVTP 7-685-647-79 SCREW +BVTP 3X10 TYPE2 N-S 1-693-626-11 TUNER (FM/AM)

  • Page 67: Chassis Section-2

    All manuals and user guides at all-guides.com CX-JT9 7-7. CHASSIS SECTION-2 supplied supplied not supplied PT901 F902 F906 F905 supplied The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified.

  • Page 68: Cd Mechanism Deck Section-1 (Cdm74F-K6Bd71A)

    All manuals and user guides at all-guides.com CX-JT9 7-8. CD MECHANISM DECK SECTION-1 (CDM74F-K6BD71A) M741 CD mechanism deck section -2 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 4-243-815-01 TABLE (LOADING) 1-687-134-11 MOTOR (TB) BOARD 4-243-816-01 TRAY 4-218-252-61 SCREW (+PTPWH M2.6), FLOATING...

  • Page 69: (Cdm74F-K6Bd71A)

    All manuals and user guides at all-guides.com CX-JT9 7-9. CD MECHANISM DECK SECTION-2 (CDM74F-K6BD71A) S711 M751 CD mechanism deck section -3 Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 4-218-252-61 SCREW (+PTPWH M2.6), FLOATING 3-016-533-11 WASHER (FR), STOPPER...

  • Page 70: Cd Mechanism Deck Section-3 (Cdm74F-K6Bd71A)

    All manuals and user guides at all-guides.com CX-JT9 7-10. CD MECHANISM DECK SECTION-3 (CDM74F-K6BD71A) BU-K6BD71A Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark X-4955-707-1 PULLEY (A5) ASSY, CHUCKING 4-227-549-11 INSULATOR 4-227-045-31 SPRING (INSULATOR), COIL 1-471-035-11 MAGNET ASSY...

  • Page 71: Base Unit Section (Bu-K6Bd71A)

    All manuals and user guides at all-guides.com CX-JT9 7-11. BASE UNIT SECTION (BU-K6BD71A) M702 M701 The components identified by mark 0 or dotted line with mark 0 are critical for safety. Replace only with part number specified. Ref. No. Part No.

  • Page 72: Electrical Parts List

    All manuals and user guides at all-guides.com CX-JT9 SECTION 8 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.
  • Page 73 All manuals and user guides at all-guides.com CX-JT9 CD BUTTON Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark FB806 1-550-907-21 FERRITE R805 1-216-809-11 METAL CHIP 1/10W FB807 1-550-907-21 FERRITE R806 1-216-809-11 METAL CHIP 1/10W R807 1-216-809-11 METAL CHIP...
  • Page 74 All manuals and user guides at all-guides.com CX-JT9 DRIVER HEADPHONE MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 1-687-135-11 DRIVER BOARD A-4738-399-A MAIN BOARD, COMPLETE ************* ********************* < CAPACITOR > 7-685-647-79 SCREW +BVTP 3X10 TYPE2 N-S...
  • Page 75 All manuals and user guides at all-guides.com CX-JT9 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C318 1-126-964-11 ELECT 10uF C319 1-165-176-11 CERAMIC CHIP 0.047uF C396 1-130-499-00 MYLAR 0.22uF C320 1-130-487-00 MYLAR 0.022uF C397 1-104-665-11 ELECT...
  • Page 76 All manuals and user guides at all-guides.com CX-JT9 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark D320 6-500-522-21 DIODE 10EDB40-TB3 JR343 1-216-864-11 SHORT CHIP 0 (SUFFIX-13) D321 6-500-522-21 DIODE 10EDB40-TB3 < TRANSFORMER > D322 6-500-522-21 DIODE 10EDB40-TB3...
  • Page 77 All manuals and user guides at all-guides.com CX-JT9 MAIN Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R253 1-216-833-11 METAL CHIP 1/10W R341 1-216-833-11 METAL CHIP 1/10W R260 1-216-813-11 METAL CHIP 1/10W (SUFFIX-13) R265 1-216-829-11 METAL CHIP 4.7K...
  • Page 78 All manuals and user guides at all-guides.com CX-JT9 MAIN MICROPHONE MOTOR (LD) MOTOR (TB) PANEL Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 1-687-134-11 MOTOR (TB) BOARD R417 1-216-833-11 METAL CHIP 1/10W ***************** R418 1-216-833-11 METAL CHIP...
  • Page 79 All manuals and user guides at all-guides.com CX-JT9 PANEL Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark C802 1-162-964-11 CERAMIC CHIP 0.001uF D605 8-719-820-05 DIODE 1SS181 C803 1-162-964-11 CERAMIC CHIP 0.001uF D606 8-719-820-05 DIODE 1SS181 C804 1-162-964-11 CERAMIC CHIP 0.001uF...
  • Page 80 All manuals and user guides at all-guides.com CX-JT9 PANEL Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark JR902 1-216-864-11 SHORT CHIP R125 1-249-433-11 CARBON 1/4W JR903 1-216-864-11 SHORT CHIP R126 1-249-433-11 CARBON 1/4W R201 1-216-823-11 METAL CHIP 1.5K...
  • Page 81 All manuals and user guides at all-guides.com CX-JT9 PANEL Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R316 1-249-421-11 CARBON 2.2K 1/4W R617 1-216-825-11 METAL CHIP 2.2K 1/10W R618 1-216-825-11 METAL CHIP 2.2K 1/10W R317 1-247-843-11 CARBON 3.3K...
  • Page 82 All manuals and user guides at all-guides.com CX-JT9 PANEL POWER Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R927 1-216-845-11 METAL CHIP 100K 1/10W S308 1-762-875-21 SWITCH, KEYBOARD (ALBUM V) S309 1-762-875-21 SWITCH, KEYBOARD (ALBUM v)
  • Page 83 All manuals and user guides at all-guides.com CX-JT9 POWER Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 1-162-959-11 CERAMIC CHIP 330PF 6-500-334-01 DIODE MC2836 1-162-961-11 CERAMIC CHIP 330PF 6-500-335-01 DIODE MC2838 1-126-967-11 ELECT 47uF 1-162-945-11 CERAMIC CHIP...
  • Page 84 All manuals and user guides at all-guides.com CX-JT9 POWER Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark < TRANSISTOR > 1-216-842-11 METAL CHIP 1/10W 1-216-842-11 METAL CHIP 1/10W 6-550-289-01 TRANSISTOR 2SA1235F 8-729-120-28 TRANSISTOR 2SC1623-L5L6 1-216-821-11 METAL CHIP...
  • Page 85 All manuals and user guides at all-guides.com CX-JT9 POWER Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark 1-216-835-11 METAL CHIP 1/10W R523 1-216-825-11 METAL CHIP 2.2K 1/10W 1-216-833-11 METAL CHIP 1/10W R524 1-216-825-11 METAL CHIP 2.2K...
  • Page 86 All manuals and user guides at all-guides.com CX-JT9 POWER SENSOR TRANSFORMER Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark R587 1-216-182-11 RES-CHIP 1/8W < DIODE > R588 1-216-821-11 METAL CHIP 1/10W R589 1-216-829-11 METAL CHIP 4.7K...
  • Page 87 All manuals and user guides at all-guides.com CX-JT9 MEMO...
  • Page 88 All manuals and user guides at all-guides.com CX-JT9 REVISION HISTORY Clicking the version allows you to jump to the revised page. Also, clicking the version at the upper right on the revised page allows you to jump to the next revised page.

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