Pioneer KEH-M8296ZT Service Manual

Multi-cd control am/fm cassette deck

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Service

Manual

MULTI-CD CONTROL AM/FM CASSETTE DECK

KEH-M8296

- This service manual should be used together with the following manual(s):

Model No.

KEH-M8276ZT/X1N/ES

CX-631

VEHICLE

DESTINATION

SOLUNA

THAILAND

NOTE:

Dolby noise reduction manufactured under license from Dolby Laboratories Licensing Corporation.

"Dolby" and the double-D symbol are trademarks of Dolby Laboratories Licensing Corporation.

EXPLODED VIEWS AND PARTS LIST

EXTERIOR(Page 4)

- EXTERIOR SECTION PARTS LIST

Mark No.

Description

Control Unit

Door

Grille

Cassette Mechanism Module

PIONEER CORPORATION

PIONEER ELECTRONICS SERVICE INC.

PIONEER ELECTRONIC [EUROPE] N.V.

PIONEER ELECTRONICS ASIACENTRE PTE.LTD. 253 Alexandra Road, #04-01, Singapore 159936

C PIONEER CORPORATION 1999

TOYOTA

Order No.

Mech. Module Remarks

CRT2132

CRT1640

PRODUCED AFTER

October 1999

KEH-M8276ZT/X1N/ES

CWM5224

CAT1932

CNS4378

EXK3815

4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, Japan

P.O.Box 1760, Long Beach, CA 90801-1760 U.S.A.

Haven 1087 Keetberglaan 1, 9120 Melsele, Belgium

Cassette Mech. Module:Circuit Description,

Mech.Description, Disassembly

TOYOTA PART No. ID No.

86120-0A060

Part No.

KEH-M8296ZT/X1N/ES

CWM6554

CAT2036

CNS5376

EXK3860

ORDER NO.

CRT2395

X1N/ES

PIONEER MODEL No.

P7403

KEH-M8296ZT/X1N/ES

K-ZZD. SEPT. 1999 Printed in Japan

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Page 1 PIONEER ELECTRONICS SERVICE INC. P.O.Box 1760, Long Beach, CA 90801-1760 U.S.A. PIONEER ELECTRONIC [EUROPE] N.V. Haven 1087 Keetberglaan 1, 9120 Melsele, Belgium PIONEER ELECTRONICS ASIACENTRE PTE.LTD. 253 Alexandra Road, #04-01, Singapore 159936 C PIONEER CORPORATION 1999 K-ZZD. SEPT. 1999 Printed in Japan...
Page 2: Cassette Mechanism Module
KEH-M8296ZT CASSETTE MECHANISM MODULE...
Page 3 KEH-M8296ZT - CASSETTE MECHANISM MODULE SECTION PARTS LIST Mark No. Description Part No. Mark No. Description Part No. 1 Screw BSZ20P040FMC 46 Pinch Roller Unit EXA1533 2 Washer CBF1037 47 Reel Unit EXA1560 48 Head Base Unit EXA1434 3 Washer...
Page 4 KEH-M8296ZT SCHEMATIC DIAGRAM CASSETTE MECHANISM MODULE DECK UNIT HEAD ASSY EXA1575 CN602...
Page 5 KEH-M8296ZT PCB UNIT MOTOR UNIT (MAIN MOTOR) EXA1499 EGN1 EGN1005 MOTOR UNIT (SUB MOTOR) EXA1382 EGN2 EGN3 EGN1006 EGN1006 FWD END REV END SENSE SENSE REEL PCB SWITCHES: PCB UNIT S1:LOAD SWITCH..EJECT-PLAY S2:70µS SWITCH...ON-OFF The underlined indicates the switch position.
Page 6 KEH-M8296ZT DECK UNIT CN602 PCB UNIT SIDE A PCB UNIT SIDE B REEL PCB...
Page 7: Electrical Parts List
KEH-M8296ZT ELECTRICAL PARTS LIST NOTE: - Parts whose parts numbers are omitted are subject to being not supplied. - The part numbers shown below indicate chip components. Chip Resistor RS1/_S___J,RS1/__S___J Chip Capacitor (except for CQS..) CKS.., CCS.., CSZS..=====Circuit Symbol and No.===Part Name Part No.
Page 8 KEH-M8296ZT Unit Number : Unit Name : Control Unit Part No. KEH-M8276ZT KEH-M8296ZT /X1N/ES /X1N/ES Symbol and Description CWM5224 CWM6554 PD4806C PE5033A RS1/10S101J RS1/10S562J RS1/10S101J RS1/10S562J RS1/10S103J RS1/10S472J RS1/10S103J RS1/10S472J RS1/10S683J RS1/10S753J RS1/10S683J RS1/10S753J RS1/10S132J RS1/10S122J RS1/10S683J RS1/10S753J RS1/10S683J RS1/10S753J...
Page 9: Specifications
KEH-M8296ZT ADJUSTMENT DECK UNIT(BOTTOM VIEW) VR302 VR301 Pin2 Pin3 CN251 L-CH R-CH Meter(2) DOLBY B NR ADJUSTMENT Test Tape Adjustment Point Adjustment Method (Switch Position) NCT-150 VR301(Lch),VR302(Rch) mV Meter(2) : –6dBm±1.0dB (400Hz,200nwb/m) (DOLBY NR Switch : OFF) SPECIFICATIONS General FM tuner Power source..........13.2V±0.2V DC...
Page 10: Table Of Contents
P.O.Box 1760, Long Beach, CA 90801-1760 U.S.A. PIONEER ELECTRONIC [EUROPE] N.V. Haven 1087 Keetberglaan 1, 9120 Melsele, Belgium PIONEER ELECTRONICS ASIACENTRE PTE.LTD. 501 Orchard Road, #10-00, wheelock Place, Singapore 238880 C PIONEER ELECTRONIC CORPORATION 1997 K-ZEM. NOV. 1997 Printed in Japan...
Page 11 KEH-M8276ZT...
Page 12: Safety Information
KEH-M8276ZT 1. SAFETY INFORMATION This service manual is intended for qualified service technicians; it is not meant for the casual do-it-yourselfer. Qualified technicians have the necessary test equipment and tools, and have been trained to properly and safely repair complex products such as those covered by this manual. Improperly performed repairs can adversely affect the safety and reliability of the product and may void the warranty.
Page 13: Exploded Views And Parts List
KEH-M8276ZT 2. EXPLODED VIEWS AND PARTS LIST 2.1 EXTERIOR Fig. 1...
Page 14 KEH-M8276ZT NOTE: - Parts marked by “*”are generally unavailable because they are not in our Master Spare Parts List. - Screws adjacent to ∇ mark on the product are used for disassembly. - EXTERIOR SECTION PARTS LIST Mark No. Description Part No.
Page 15: Cassette Mechanism Module
KEH-M8276ZT 2.2 CASSETTE MECHANISM MODULE Fig. 2...
Page 16 KEH-M8276ZT - CASSETTE MECHANISM MODULE SECTION PARTS LIST Mark No. Description Part No. Mark No. Description Part No. 1 Screw BSZ20P040FMC 36 Worm Wheel ENV1440 2 Washer CBF1037 37 Gear ENR1028 3 Washer CBF1038 38 Lever ENV1442 4 Washer CBG1003 39 Arm ENV1445 5 Deck Unit...
Page 17: Schematic Diagram
KEH-M8276ZT 3. SCHEMATIC DIAGRAM 3.1 OVERALL CONNECTION DIAGRAM(GUIDE PAGE) Note: When ordering service parts, be sure to refer to “EXPLODED VIEWS AND PARTS LIST” or “ELECTRICAL PARTS LIST”. Large size SCH diagram Guide page Detailed page E F G...
Page 18 KEH-M8276ZT Fig. 3...
Page 19 KEH-M8276ZT...
Page 20 KEH-M8276ZT Fig. 4...
Page 21 KEH-M8276ZT...
Page 22 KEH-M8276ZT Fig. 5...
Page 23: Tuner Unit
KEH-M8276ZT 3.2 TUNER UNIT TUNER UNIT PA4023B...
Page 24 KEH-M8276ZT Fig. 6...
Page 25 KEH-M8276ZT 3.3 CASSETTE MECHANISM MODULE CN602...
Page 26 KEH-M8276ZT Fig. 7 E F G...
Page 27: Pcb Connection Diagram
KEH-M8276ZT 4. PCB CONNECTION DIAGRAM 4.1 CONTROL UNIT NOTE FOR PCB DIAGRAMS CONTROL UNIT 1. The parts mounted on this PCB include all necessary parts for several destination. For further information for respective destinations, be sure to check with the schematic diagram.
Page 28 KEH-M8276ZT SIDE A Fig. 8...
Page 29 KEH-M8276ZT CONTROL UNIT...
Page 30 KEH-M8276ZT SIDE B Fig. 9...
Page 31 KEH-M8276ZT 4.2 AMP UNIT AMP UNIT SIDE A Fig. 10 SIDE B Fig. 11...
Page 32: Keyboard Unit
KEH-M8276ZT 4.3 KEYBOARD UNIT SIDE B SIDE A Fig. 13 Fig. 12...
Page 33 KEH-M8276ZT 4.4 TUNER UNIT SIDE A Fig. 14...
Page 34 KEH-M8276ZT SIDE B Fig. 15...
Page 35 KEH-M8276ZT 4.5 CASSETTE MECHANISM MODULE DECK UNIT Fig. 16...
Page 36 KEH-M8276ZT SIDE A PCB UNIT Fig. 17 SIDE B Fig. 18 REEL PCB Fig. 19...
Page 37: Electrical Parts List
KEH-M8276ZT 5. ELECTRICAL PARTS LIST NOTES: - Parts whose parts numbers are omitted are subject to being not supplied. - T he part numbers shown below indicate chip components. Chip Resistor RS1/_S___J,RS1/__S___J Chip Capacitor (except for CQS..) CKS.., CCS.., CSZS..=====Circuit Symbol and No.===Part Name Part No.
Page 38 KEH-M8276ZT =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- RS1/16S123J CEJA3R3M50 RS1/16S103J CKSRYB102K50 RS1/10S153J CCSRCH100D50 CKSRYB103K25 CAPACITORS CCSRCH100D50 CCSRCH220J50 CKSRYB332K50 CKSRYB222K50 CKSQYB473K16 CCSRCH6R0D50 CKSQYB473K16 CKSRYB222K50 CKSQYB103K25 CKSQYB473K16 CCSRCH120J50 CKSQYB473K16 CCSRCH560J50 CKSQYB104K16...
Page 39 KEH-M8276ZT =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- Transistor 2SC4116 RS1/10S332J Transistor 2SA1048 RS1/10S332J Transistor 2SC4116 RS1/10S821J Transistor 2SC4116 RS1/10S562J Transistor 2SC4116 RS1/10S821J Transistor 2SK330 RS1/10S242J Transistor DTC114TU RS1/10S753J Transistor...
Page 40 KEH-M8276ZT =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- RS1/10S473J RS1/10S222J RS1/10S473J RD1/4PU152J RD1/4PU472J RD1/4PU152J RD1/4PU102J RS1/10S472J RD1/4PU222J RS1/10S472J RS1/10S152J RS1/10S271J RS1/10S102J RS1/10S271J RS1/10S103J RS1/10S472J RS1/10S102J RS1/10S472J RS1/10S393J RS1/10S273J RD1/4PU222J RS1/10S273J...
Page 41 KEH-M8276ZT =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- CEHAQ470M10 CEJANP100M10 CEHAQ470M10 CEJANP100M10 CEHAQ470M10 CEJA220M10 CEHAQ470M10 CKSQYB103K50 CEJA1R0M50 CEJA2R2M50 CKSQYB102K50 CEJA1R0M50 100µF/16V CCH1299 CEJA1R0M50 CEJA1R0M50 CEJA1R0M50 CEJA101M6R3 CEJA1R0M50 0.047F/5.5V CCL1040 CEJANP4R7M16...
Page 42 KEH-M8276ZT =====Circuit Symbol and No.===Part Name Part No. =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- ------ ------------------------------------------ ------------------------- Unit Number : CWM5225 Unit Number : EWM1007 Unit Name : Keyboard Unit Unit Name : Deck Unit MISCELLANEOUS MISCELLANEOUS LC75853NW HA12163...
Page 43 KEH-M8276ZT =====Circuit Symbol and No.===Part Name Part No. ------ ------------------------------------------ ------------------------- CKSRYB103K25 CEV1R0M50 CKSQYB104K16 CKSYB474K16 CKSYB474K16 CKSQYB104K16 CKSQYB104K16 CKSYB224K25 CKSQYB392K50 CKSQYB103K50 CKSQYB103K50 CKSYB104K50 CKSQYB103K50 CKSRYB182K50 CKSRYB822K50 CKSRYB333K16 CKSRYB471K50 Unit Number : Unit Name : PCB Unit Switch (Load) ESG1004 Switch (70µS) ESG1004 Photo-Interrupter EGN1005...
Page 44: Adjustment
KEH-M8276ZT 6. ADJUSTMENT - Connection Diagram RL– RR– 4kΩ Oscilloscope mV Meter (1) 4kΩ DC Regulated Power Supply +13.2V Antenna Jack TUNER UNIT (TOP VIEW) Pin26 CONTROL UNIT Pin 19 DC V Meter(1) Pin14 Pin13 VR151 Pin 6 VR156 VR154 VR101 DC V DECK UNIT...
Page 45 KEH-M8276ZT FM ADJUSTMENT NOTE:Before proceeding to further adjustments after switching power ON, let the tuner run for ten minutes to allow the circuits to stabilize. Modulation M : MONO MOD., 400Hz, 30%(22.5kHz Dev.) S : STEREO MOD., 1kHz, L or R=30%(20.25+7.5kHz Dev.) FM SSG Displayed Adjustment...
Page 46: General Information
KEH-M8276ZT 7. GENERAL INFORMATION 7.1 PARTS 7.1.1 IC PA4023B *SN761027DL 48 47 46 45 44 43 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 5.1dB FRONT BUFFER 4 CHANNEL 2 BANDS LOUD &...
Page 47 KEH-M8276ZT Pin Functions(PD4806C) Pin No. Pin Name Format Function and Operation 1–3 Not used AVSS A/D GND Not used AVREF1 MUTE System mute output AM/fm AM/FM select output Antenna control output Serial data input Serial data output Serial clock output for LCD driver Chip select output for LCD driver Not used Data input from PLL IC...
Page 48 KEH-M8276ZT Pin No. Pin Name Format Function and Operation AVDD A/D converter analog power supply (VDD) AVREF0 (A/D converter standard voltage input) A/D for volume input Signal level input SD input *PD4806C IC's marked by* are MOS type. Be careful in handling them because they are very liable to be damaged by electrostatic induction.
Page 49 KEH-M8276ZT Pin Functions(LC75853NW) Pin No. Pin Name Format Function and Operation LCD back light control output Illumination control output Not used 6-27 S6-27 LCD segment signal output 6-27 8-31 Not used 32-40 S32-40 LCD segment signal output 32-40 41-43 COM3-1 LCD common signal output 3-1 44-48 KS1-5...
Page 50: Display
KEH-M8276ZT 7.1.2 DISPLAY - CAW1415 SEGMENT COMMON Fig. 21...
Page 51: Diagnosis
KEH-M8276ZT 7.2 DIAGNOSIS 7.2.1 SELF-DIAGNOSTIC FUNCTION...
Page 52 KEH-M8276ZT...
Page 53 KEH-M8276ZT...
Page 54 KEH-M8276ZT...
Page 55: Disassembly
KEH-M8276ZT 7.2.2 DISASSEMBLY - Removing the Case(not shown) 1. Insert and turn a screwdriver to remove the case. - Removing the Cassette Mechanism Module (not shown) 1. Removing the four screws. 2. Disconnect the connector , and then removing the Cassette Mechanism Module.
Page 56: Connector Function Description
KEH-M8276ZT 7.2.3 CONNECTOR FUNCTION DESCRIPTION ( – ) ( + ) ( – ) ( – ) SGND MUTE ( + ) ( + ) Fig. 24...
Page 57: Test Mode
KEH-M8276ZT 7.2.4 TEST MODE Test mode is mainly used adjustment of CDX-M8066ZT/WL. a) CD multi-player Function SCAN Power ON/OFF TRK UP FWD kick TRK DOWN REV kick Tracking close DISC DOWN Tracking open Focus close DISC UP Change discs (up) DISP Change display (DISC/TRACK No↔MIN.´SEC.
Page 58 KEH-M8276ZT - Flow Chart Press the CD key three times, while holding down the [1] and [6] keys simultaneously. Diagnosis mode Press the TRK UP and CD keys simultaneously. CD test mode Normal focus close 00 only <Regulator OFF> Normal display Focus gain Track gain CD player select...
Page 59: Explanation
KEH-M8276ZT 7.3 EXPLANATION 7.3.1 BLOCK DIAGRAM...
Page 60 KEH-M8276ZT Fig. 26...
Page 61: System Block Diagram
KEH-M8276ZT 7.3.2 SYSTEM BLOCK DIAGRAM AUDIO SYSTEM FOUR SPEAKERS MAIN UNIT MULTI-CD CDX-M8226ZT/ES MUSIC CD Fig. 27...
Page 62: Operations And Specifications
KEH-M8276ZT 8. OPERATIONS AND SPECIFICATIONS 8.1 OPERATIONS Listening to the Radio Band SW Balance Power SW Fader Volume Bass Treble Preset Scan,Preset Scan Fig. 28 Tuning Listening to the Tape Eject Dolby B Balance Fader Power SW Bass Volume Treble Auto Program Search Fig.
Page 63 KEH-M8276ZT 8.2 SPECIFICATIONS Power source..........13.2V±0.2V DC FM tuner Grounding system........Negative type Frequency...........87.5–108.0 MHz S/N ..............50dB or more x163 Dimensions.......180(W) 50(H) (D)mm Distortion............2.0% or less Weight..............1.240kg IF interference ..........84dB or more Image interference........46dB or more Amplifier Maximum power output .......20W or more AM tuner Tone controls(bass) ........±8dB(100Hz) Frequency ............531–1602 kHz...

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Keh-m8296zt/x1n/es

Pioneer KEH-M8296ZT Service Manual

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