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Service Manual
GX470

ORDER NO.

CRT2889

LAND CRUISER PRADO

AUDIO SYSTEM POWER AMPLIFIER
VEHICLE LAND CRUISER PRADO LEXUS GX470 LAND CRUISER PRADO LAND CRUISER PRADO DESTINATION UK, Ireland U.S.A., Canada Europe UK, Ireland PRODUCED AFTER September 2002 November 2002 September 2002 September 2002 TOYOTA PART No. ID No. 86280-60280 86280-60290 86280-60310 86280-60300 PIONEER MODEL No. GM-8027ZT/WL GM-8027ZT/E GM-8127ZT/EW GM-8127ZT/WL

Manufactured for TOYOTA by PIONEER CORPORATION

PUB. NO. CRT2889

1

2

3

4

A

For details, refer to "Important symbols for good services".

B

C

D

E

F

2 1 2

GM-8027ZT/WL

3

4

5

6

7

8

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. If you are not qualified to perform the repair of this product properly and safely, you should not risk trying to do so and refer the repair to a qualified service technician.

A

NOTE:
- When diagnosing a product, take care of its heated portion. Power IC (IC801,802,803) Power Supply IC (IC901,902) DSP IC (IC201,251) Heat Sink IC Holder [ Important symbols for good services ]
In this manual, the symbols shown-below indicate that adjustments, settings or cleaning should be made securely. When you find the procedures bearing any of the symbols, be sure to fulfill them:

B

C

1. Product safety
You should conform to the regulations governing the product (safety, radio and noise, and other regulations), and should keep the safety during servicing by following the safety instructions described in this manual.

2. Adjustments
To keep the original performances of the product, optimum adjustments or specification confirmation is indispensable. In accordance with the procedures or instructions described in this manual, adjustments should be performed.

3. Cleaning
For optical pickups, tape-deck heads, lenses and mirrors used in projection monitors, and other parts requiring cleaning, proper cleaning should be performed to restore their performances.
D

4. Shipping mode and shipping screws
To protect the product from damages or failures that may be caused during transit, the shipping mode should be set or the shipping screws should be installed before shipping out in accordance with this manual, if necessary.

5. Lubricants, glues, and replacement parts
Appropriately applying grease or glue can maintain the product performances. But improper lubrication or applying glue may lead to failures or troubles in the product. By following the instructions in this manual, be sure to apply the prescribed grease or glue to proper portions by the appropriate amount.For replacement parts or tools, the prescribed ones should be used.

E

F

GM-8027ZT/WL

3 7 8

5

6

1

2

3

4

A

CONTENTS
1. 2. 3. 4. 5. 6. SAFETY INFORMATION............................................3 SPECIFICATIONS .......................................................4 EXPLODED VIEWS AND PARTS LIST ......................6 BLOCK DIAGRAM AND SCHEMATIC DIAGRAM ....8 PCB CONNECTION DIAGRAM................................16 ELECTRICAL PARTS LIST........................................25 ADJUSTMENT .........................................................31 7. GENERAL INFORMATION.......................................41 7.1 DIAGNOSIS .......................................................41 7.1.1 DISASSEMBLY.........................................41 7.1.2 CONNECTOR FUNCTION DESCRIPTION ......44 7.2 IC ........................................................................45 7.3 EXPLANATION...................................................46 7.3.1 SYSTEM BLOCK DIAGRAM.....................46 7.3.2 OPERATIONAL FLOW CHART .................49 8. OPERATIONS ...........................................................51

B

1. SPECIFICATIONS
Power source . . . . . . . . . . . . .13.2±0.1V(10.5-16.0V) Grounding . . . . . . . . . . . . . . . .Negative type Backup current . . . . . . . . . . . .1.0mA or less Dimensions(No Bracket) . . . .261.6mm(W)x73mm(H)x183.8mm(D) Weight . . . . . . . . . . . . . . . . . . .2.465kg Maximum output power . . . .22W or more(Front) 22W or more(Squawker-Front) 22W or more(Rear) 22W or more(Woofer)

C

D

E

F

4 1 2

GM-8027ZT/WL

3

4

5

6

7

8

A

B

C

D

E

F

GM-8027ZT/WL

5 7 8

5

6

1

2

3

4

2. EXPLODED VIEWS AND PARTS LIST
2.1 EXTERIOR
A

B

C

D

E

F

6 1 2

GM-8027ZT/WL

3

4

5

6

7

8

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. - For the applying amount of lubricants or glue, follow the instructions in this manual. ( In the case of no amount instructions, apply as you think it appropriate.)

A

- EXTERIOR SECTION PARTS LIST
Mark No. Description 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 Screw Screw Screw Screw Screw Screw Screw Chassis Case Shield Case Shield Case Bracket Bracket 86287-60020 Insulator Seal Seal Seal Seal Tape Heat Sink Cover Cover DSP Unit(GM-8027ZT/WL) DSP Unit(GM-8027ZT/E) Part No. BMZ30P200FMC BMZ40P060FZK BMZ50P060FMC BPZ26P080FMC BSZ26P060FMC BSZ30P060FMC BSZ30P100FMC CNA2142 CNB2563 CNC8185 CNC8186 CNC9778 CNC9779 CND1013 CNM6145 CNM6686 CNM7170 CNM7305 CNM7745 CNM7882 CNR1566 CNV7037 CNV7605 CWM8076 CWM8074 CWM8356 CWM8353 CDE6990 CKS2191 CKS3632 Mark No. Description 28 Socket(CN101) 29 Amp Unit(GM-8076ZT/WL) Amp Unit(GM-8076ZT/E) Amp Unit(GM-8176ZT/WL) Amp Unit(GM-8176ZT/EW) 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 Screw Screw Connector(CN902) Connector(CN901) Plug(CN906) Plug(CN905) Holder Bracket Sheet Microphone Unit Connector(CN402) Screw IC(IC902) IC(IC801) IC(IC802) Part No. CKS4241 CWM8077 CWM8075 CWM8355 CWM8352 BPZ30P060FSN BSZ26P080FMC CKM1308 CKM1310 CKS4240 CKS4242 CNC8187 CND1012 CNM7015 CWM8205 CKS2191 ISS26P060FMC BA178M05T PAL006A PAL006A PAL006A CNM7756
D

B

C

45 IC(IC803) 46 Cushion

DSP Unit(GM-8127ZT/WL) DSP Unit(GM-8127ZT/EW) 25 Cord Assy 26 Connector(CN401) 27 Socket(CN102)

E

F

GM-8027ZT/WL

7 7 8

5

6

1

2

3

4

A

3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM
3.1 BLOCK DIAGRAM

A

DSP UNIT
VCC VCC 8

B
CN102
FRONT DAC
D q

AMP UNIT
FRONT POWER AMP
11 16 4

CN905
FRONT-L PRE AMP IC701 FLIN 3 NJM2068MD 1
PEE 2 P 6 SYS4

CRYSTAL OSCILLATOR 8 1 IC231 TC7WU04F 7 3 2 1
CK

FRONT LPF
3 18 3
IN1

IC241 TC7W74FU

2 3

5
8

XTI

IC261 AK4321VF

SDATA

AOUTL

IC311 NJM2068MD

1

FLO

13

13

IC801 PAL006A
22 25

9 7

(FLP)

L901
(FLM)

BU

Q801

5
8
(256FS) (RDATA)

XTI

REAR DAC IC281 AK4321VF
AOUTL

REAR LPF
3 18

Q831

STBY1 PMUT

CN901
B.U 7 9 17 19
(RLM) (RLP)

SDATA

IC331 NJM2068MD

1 5

IN3

OUT1 OUT3 OUT5

22 20 18 RLO

REAR-L PRE AMP 11 IC702 11 RLIN NJM2068MD 1 3
6 SYS4 11 10 4

REAR POWER AMP IC802 PAL006A
22 15 25

B
A/D CONVERTER IC181 AK5351VF
AINLSDATA

ELECTRONIC VOLUME WOOFER LPF
3 1

WFL-

WFL+

(FDATA)

DSP
21 18
SDI1 SDO0

SDO1

16

WOOFER DAC 5 XTI IC291 AK4321VFAOUTL 8
SDATA

(TWLM)

AOUTR 18

IC341 NJM2068MD

7 IN5

Q832 ELECTRONIC VOLUME

STBY1 PMUT

(TWLP)

IC351 PM0017AM

Q802

RL-

RL+

7

IC201 PD2061A
SDO2

17 2

6 AINL+

19 SDI0
(WDATA)

IC371 SN761029DL

19

TWLO

8

8

TWLIN

FL-

FL+

17 15

SUB WOOFER PRE AMP
WFO

SUB WOOFER POWER AMP
11 IC803 10 PAL006A 4 22 25 7 9

9

9

IC703 WFIN NJM2068MD 1 3
6 SYS4

OUTPUT CONNECTOR Q803

19 18 16 15
SDI0 SDI1 SDO1 SDO2

SDO0

17

(TDATA)

SQUAWKER DAC 5 XTI IC271 AK4321VF 8
SDATA AOUTL

SQUAWKER LPF
3 1 IC321 NJM2068MD

DSP IC251 PD2061A
Q291

18

PMUT Q833 STBY1 Q950

(FSW)

B

5 6

5 6 5V REGULATOR Q903 Q915
BU1

A

(SPD)

C
68 DSPERR VDD 21 SYSTEM MUTE Q175 SMUTEIN 31 ACC SENSE Q155 ASENS 17 BACK UP SENSE Q151 16 RESET RESET NAVMUTE 9 79 BUS DRIVER AVCIN AVCOUT AVCPW 22 23 20 2 1 8 IC141 HA12187FP 6 7 1 IC131 S-80730ANDT 2 NAVI/MUTE Q171 PEE

AUDIO INPUT BUFFER
2 1 IC501 7 NJM2068MD 6

C (SPD) LMUTE (H/U MUT)

INPUT CONNECTOR
SPD L+ N-MU

VDD5

PEE

11

8

P PEE

ACC
(TWLM)

MUTI

13 6 7

6 13 12

MUTIN

IC101 SYSTEM CONTROLLER

CN902
ML-

TX+ TMUT ML+

ACC1

ACC1 BU1

BU1

BSENS

GM-8027ZT/E GM-8027ZT/WL GM-8127ZT/EW GM-8127ZT/WL

: PD5726A : PD5792A

NMUT1

12

7

NMUT

TXH

15

4

TXP1

MUTE Q910
PMUT

Q912

D
SYSPW1 ASLIN2 ASLIN1 SPEED MUTE XOUT XIN

1

MUTO FS

9 5

10 14

MUTEO

Q909
FS

Q911

PWSENS 65

OFFSET SENSE Q913
(FSW)

10

12

76

74

66

15
Q101

B

(ASL2)

(ASL1)

MUTE /STBY 6
7

A 2

IC903 M51957BFP

ASL
5

7 IC402 NJM2068MD

AVDD

SYSA5 SYSD5

17 18

2 1
SYS5 1

5V REGULATOR IC902 BA178M05T 8V REGULATOR
3

8

SYSTEM POWER SWITCH Q904
BU

DVDD

Q401

VR401
1 3 IC401 NJM2068MD 4

8

SYS8

16

3 SYS8
SYS4

1

IC901 3 NJM2930F08K

Q906

Q161

E

1 1

2 2

SYSP1

8

11

SYSPW1 VDD

SYSPW1

Q907
SPD1 SPD1

C

10

9

SPEED SENSOR PULSE

MIC

MIC401

C

CN101

CN906

MICROPHONE UNIT

F

8 1 2

GM-8027ZT/WL

3

4

(TWLP)

3

16

VDD5

5

6

7

8

A

B

C

D

E

F

GM-8027ZT/WL

9 7 8

5

6

1

2

3

4

3.2 SCHEMATIC DIAGRAM (GUIDE PAGE)
Note: When ordering service parts, be sure to refer to " EXPLODED VIEWS AND PARTS LIST" or "ELECTRICAL PARTS LIST".
A
Large size SCH diagram

A-a

A-a

A-b

A

DSP UNIT

A-a

A-b

Guide page

A/D CONVERTER

A-a

A-b

Detailed page

B

C

C
MICROPHONE UNIT

D

POWER AMP

E

F

A B C
10 1

B

AMP UNIT

GM-8027ZT/WL

2

3

4

5

6

7

8

A-b

A

B

C

D

E

NOTE : Symbol indicates a resistor. No differentiation is made between chip resistors and discrete resistors. Symbol indicates a capacitor. No differentiation is made between chip capacitors and discrete capacitors.

Decimal points for resistor and capacitor fixed values are expressed as : 2.2 2R2 0.022 R022

F

A B
GM-8027ZT/WL

11 7 8

5

6

D

C

E

B

A

F

12
A-a A-b

A-b

A-a
1 2

1

1

A

DSP UNIT

A/D CONVERTER

2

2

GM-8027ZT/WL

3

3

4

4

C

MICROPHONE UNIT

C

MICROPHONE UNIT

3
5

5 POWER AMP

6

6

GM-8027ZT/WL

7

7

B

AMP UNIT
4
8

A-b

A-a
D E

8

A-a A-b

13

B

A

C

F

1

2

3

4

A

B

C

D

E

F

A-b
14 1

A-a A-b

1
2

2
GM-8027ZT/WL

3

4

3
5 6 7
NOTE : Symbol indicates a resistor. No differentiation is made between chip resistors and discrete resistors. Symbol indicates a capacitor. No differentiation is made between chip capacitors and discrete capacitors. Decimal points for resistor and capacitor fixed values are expressed as : 2.2 2R2 0.022 R022

5
A-a A-b

6 D C E B A

GM-8027ZT/WL

7

4

A-b

8

8

15

F

1

2

3

4

A

4. PCB CONNECTION DIAGRAM
4.1 DSP UNIT

NOTE FOR PCB DIAGRAMS
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. 2.Viewpoint of PCB diagrams

Connector

Capacitor

SIDE A

B

P.C.Board

Chip Part

SIDE B

A

DSP UNIT

B

CN906

C

D

E

F

C

CN402

A
16 1 2
GM-8027ZT/WL

3

4

5

6

7

8

A

B

SIDE A

B

CN905

C

D

E

FRONT

F

A
GM-8027ZT/WL

17 7 8

5

6

1

2

3

4

A

B

A

DSP UNIT

C

D

E

F

A
18 1 2
GM-8027ZT/WL

3

4

5

6

7

8

A

B

SIDE B

C

D

E

F

A
GM-8027ZT/WL

19 7 8

5

6

1

2

3

4

A

4.2 AMP UNIT

B
B

AMP UNIT

A

CN101

C

D

E

F

B
20 1 2
GM-8027ZT/WL

3

4

5

6

7

8

A

SIDE A

A

CN102
B

C

D

E

F

B
GM-8027ZT/WL

21 7 8

5

6

1

2

3

4

A

B
B

AMP UNIT

C

D

E

F

B
22 1 2
GM-8027ZT/WL

3

4

5

6

7

8

A

SIDE B

B

C

D

E

F

B
GM-8027ZT/WL

23 7 8

5

6

1

2

3

4

A

4.3 MICROPHONE UNIT

C
B

MICROPHONE UNIT

SIDE A

C

MICROPHONE UNIT

SIDE B

A

CN401

MIC
C

D

E

F

C
24 1 2
GM-8027ZT/WL

3

4

5

6

7

8

5. 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. ------------------------=====Circuit Symbol and No.===Part Name --- ----------------------------------------------L L L L L L L L L L L L L L L L L L L L L L X X VR 183 184 185 186 201 231 241 251 261 262 271 272 281 282 291 292 293 295 296 297 301 451 101 231 401 Inductor Inductor Inductor Inductor Inductor Inductor Inductor Inductor Inductor Inductor Inductor Inductor Inductor Inductor Inductor Inductor Inductor Inductor Chip-Inductor Chip-Inductor Inductor Inductor Radiator 10.00MHz Ceramic Resonator 22.5792MHz Semi-fixed 1k(OB) Part No. ------------------------LCTB1R0K2125 LCTB1R0K2125 LCTB4R7K2125 LCTB120K2125 LCTBR82K2125 LCTB1R0K2125 LCTB1R0K2125 LCTBR82K2125 LCTB1R0K2125 LCTB120K2125 LCTB1R0K2125 LCTB120K2125 LCTB1R0K2125 LCTB120K2125 LCTB1R0K2125 LCTB120K2125 LCTB1R0K2125 LCTA1R0J3225 LCTA2R2J3225 LCTA2R2J3225 LCTB1R0K2125 LCTB4R7K2125 CSS1428 CSS1512 CCP1393

A

B

A
IC IC IC IC IC IC IC IC IC IC IC IC IC IC IC IC IC IC IC IC IC Q Q Q Q Q Q Q Q D D D D D D D D D D D L L L L L

Unit Number : : : : Unit Name :
101 101 131 141 181 201 231 241 251 261 271 281 291 311 321 331 341 351 371 401 402 101 151 155 161 171 175 291 401 101 151 155 301 401 402 403 404 405 406 451 101 141 142 181 182

CWM8076(GM-8027ZT/WL) CWM8074(GM-8027ZT/E) CWM8356(GM-8127ZT/WL) CWM8353(GM-8127ZT/EW) DSP Unit
PD5726A PD5792A S-80730ANDT HA12187FP AK5351VF PD2061A TC7WU04F TC7W74FU PD2061A AK4321VF AK4321VF AK4321VF AK4321VF NJM2068MD NJM2068MD NJM2068MD NJM2068MD PM0017AM SN761029DL NJM2068MD NJM2068MD DTA144EK 2SC2712 2SC2712 2SC2712 2SA1162 2SA1162 DTA124XK 2SC2712 DAN202K HZU8R2(B1) HZU8R2(B1) HZU4R3(B3) HZU4R3(B3) 1SS355 1SS355 1SS355 1SS355 1SS355 RD2R7M(B2) LCTB1R0K2125 CTF1305 CTF1305 LCTB1R0K2125 LCTB1R0K2125

MISCELLANEOUS
IC(GM-8027ZT/WL,GM-8027ZT/E) IC(GM-8127ZT/WL,GM-8127ZT/EW) IC IC IC IC IC IC IC IC IC IC IC IC IC IC IC IC IC IC IC Transistor Chip Transistor Chip Transistor Chip Transistor Transistor Transistor Transistor Chip Transistor Diode Diode Diode Diode Diode Diode Diode Diode Diode Diode Diode Inductor Inductor Inductor Inductor Inductor

C

D

RESISTORS
R R R R R R R R R R R R R R R R R R R R R R R R R 101 103 104 105 107 108 109 110 111 112 113 114 115 116 117 118 119 120 122 125 126 127 128 129 130 47k 1k (GM-8027ZT/E,GM-8127ZT/EW) CCN1120 RS1/10S473J RS1/10S473J RS1/10S103J RS1/10S473J RS1/10S102J RS1/10S473J RS1/10S473J RS1/10S102J RS1/10S473J RS1/10S473J RS1/10S473J RS1/10S472J RS1/10S472J RS1/10S103J RS1/10S681J CCN1131 RS1/10S473J RS1/4S271J RS1/16S102J RS1/16S102J RS1/16S102J RS1/16S102J RS1/16S102J RS1/16S102J

(GM-8027ZT/WL,GM-8127ZT/WL)

E

F

GM-8027ZT/WL

25 7 8

5

6

1

2

3

4

A

=====Circuit Symbol and No.===Part Name --- ----------------------------------------------R R R R R R R R R R R R R R R R R R R R R R R R R 131 132 133 134 135 141 142 144 151 152 153 155 156 157 161 162 171 172 173 175 176 177 181 182 183 184 185 186 187 188 201 202 203 206 207 208 231 232 233 241 251 252 253 261 262 271 272 281 282 291 292 293 295 296 301 311 312 313 314 315 315 316 316

Part No. ------------------------RS1/10S104J RS1/16S102J RS1/16S102J RS1/16S102J RS1/16S102J RS1/10S102J RS1/10S102J RS1/10S473J RS1/10S104J RS1/10S473J RS1/10S102J RS1/10S104J RS1/10S473J RS1/10S102J RS1/10S362J RS1/10S473J RS1/10S912J RS1/10S472J RS1/10S102J RS1/10S912J RS1/10S472J RS1/10S102J RS1/10S331J RS1/10S331J RS1/10S331J RS1/10S331J RS1/10S221J RS1/10S221J RS1/10S221J RS1/10S221J RS1/10S221J RS1/10S221J RS1/10S221J RS1/16S102J RS1/16S102J RS1/16S102J RS1/10S680J RS1/10S105J RS1/10S471J RS1/10S681J RS1/10S221J RS1/10S221J RS1/10S221J RS1/10S102J RS1/10S102J RS1/10S102J RS1/10S102J RS1/10S102J RS1/10S102J RS1/10S102J RS1/10S102J RS1/10S473J RS1/10S1R0J RS1/10S4R7J RS1/10S391J RS1/10S123J RS1/10S123J RS1/10S103J RS1/10S103J

=====Circuit Symbol and No.===Part Name --- ----------------------------------------------R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R 317 318 321 322 323 324 325 325 326 326 327 328 331 332 333 334 335 335 336 336 337 338 341 343 345 347 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 425 451 452 453 454 455 (GM-8027ZT/WL,GM-8127ZT/WL) (GM-8027ZT/E,GM-8127ZT/EW) (GM-8027ZT/WL,GM-8127ZT/WL) (GM-8027ZT/E,GM-8127ZT/EW)

Part No. ------------------------RS1/10S101J RS1/10S101J RS1/10S123J RS1/10S123J RS1/10S103J

RS1/10S103J (GM-8027ZT/WL) RS1/10S243J (GM-8127ZT/WL,GM-8027ZT/E,GM-8127ZT/EW) RS1/10S303J (GM-8027ZT/WL) RS1/10S243J (GM-8127ZT/WL,GM-8027ZT/E,GM-8127ZT/EW) RS1/10S303J RS1/10S101J RS1/10S101J RS1/10S123J RS1/10S123J RS1/10S103J RS1/10S103J RS1/10S303J RS1/10S243J RS1/10S303J RS1/10S243J RS1/10S101J RS1/10S101J RS1/10S562J RS1/10S682J RS1/10S123J RS1/10S101J RS1/10S222J RS1/10S683J RS1/10S103J RS1/10S472J RS1/10S471J RS1/10S391J RS1/10S684J RS1/10S682J RS1/10S472J RS1/10S472J RS1/10S473J RS1/10S153J RS1/10S153J RS1/10S102J RN1/10SE1003D RN1/10SE1003D RS1/10S1800D RS1/10S562J RN1/10SE1002D RN1/10SE2002D RS1/10S102J RN1/10SE1003D RN1/10SE1003D RS1/10S472J RS1/10S473J RS1/10S473J RS1/10S473J RS1/10S473J RS1/10S102J

B

C

R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R

D

E

CAPACITORS
C C C C C C C C C C 101 102 103 104 105 106 107 121 122 131 CEJQ100M16 CEJQ100M16 CKSQYB103K50 CKSQYB102K50 CKSQYB102K50 CKSQYB102K50 CKSQYB102K50 CKSQYB103K50 CKSQYB103K50 CKSQYB103K50

(GM-8027ZT/WL,GM-8127ZT/WL,GM-8127ZT/EW) RS1/10S303J (GM-8027ZT/E) RS1/10S393J (GM-8027ZT/WL,GM-8127ZT/WL,GM-8127ZT/EW) RS1/10S303J (GM-8027ZT/E) RS1/10S393J

F

26 1 2

GM-8027ZT/WL

3

4

5

6

7

8

=====Circuit Symbol and No.===Part Name --- ----------------------------------------------C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C 141 181 182 183 184 185 186 187 188 189 191 192 193 194 195 196 197 198 201 202 203 204 231 232 233 241 242 243 251 252 253 261 262 263 264 265 265 266 266 267 268 269 271 272 273 274 275 275 276 276 277 278 279 281 282 283 284 285 285 286 286 287 288 289

Part No. ------------------------CKSQYB103K50 CKSQYB152K50 CKSQYB152K50 CEJQ101M10 CKSQYB104K25 CEJQ100M16 CKSQYB104K25 CEJQ101M10 CKSQYB104K25 CKSQYB104K25 CCSQCH101J50 CCSQCH101J50 CCSQCH101J50 CCSQCH101J50 CEJQNP100M10 CEJQNP100M10 CEJQNP100M10 CEJQNP100M10 CEJQ100M16 CEJQ100M16 CKSQYB103K50 CKSQYB102K50 CEJQ100M16 CEJQ100M16 CKSQYB103K50 CKSQYB103K50 CKSQYB103K50 CKSQYB102K50 CEJQ100M16 CEJQ100M16 CKSQYB103K50 CKSQYB104K25 CEJQ101M10 CEJQ221M6R3 CKSQYB104K25

=====Circuit Symbol and No.===Part Name --- ----------------------------------------------C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C 291 292 293 294 295 297 298 299 301 302 303 306 307 308 309 311 312 313 314 315 315 316 316 317 321 322 323 324 325 326 327 331 332 333 334 335 336 337 341 343 345 347 351 352 353 354 355 357 358 359 360 361 362 363 364 365 371 372 373 374 375 376 377

Part No. ------------------------CKSQYB104K25 CEJQ101M10 CEJQ221M6R3 CKSQYB104K25 CKSQYB332K50 CEJQ221M6R3 CKSQYB104K25 CKSQYB104K25 CEJQ101M10 CKSQYB102K50 CKSQYB103K50 CKSQYB103K50 CKSQYB103K50 CKSQYB103K50 CKSQYB103K50 CEJQNP100M10 CEJQNP100M10 CKSQYB102K50 CKSQYB102K50

A

B

(GM-8027ZT/WL,GM-8127ZT/WL,GM-8127ZT/EW) CCSQCH101J50 (GM-8027ZT/E) CCSQCH680J50 (GM-8027ZT/WL,GM-8127ZT/WL,GM-8127ZT/EW) CCSQCH101J50 (GM-8027ZT/E) CCSQCH680J50 CKSQYB103K50 CEJQNP100M10 CEJQNP100M10 CKSQYB102K50 CKSQYB102K50 CCSQCH101J50 CCSQCH101J50 CKSQYB103K50 CEJQNP100M10 CEJQNP100M10 CKSQYB102K50 CKSQYB102K50 CCSQCH101J50 CCSQCH101J50 CKSQYB103K50 CEJQNP100M10 CKSQYB823K25 CKSQYB183K50 CKSQYB103K50 CKSYB105K16 CKSYB105K16 CKSYB105K16 CKSYB105K16 CKSYB105K16 CEJQ100M16 CKSQYB104K25 CEJQ100M16 CKSQYB104K25 CEALNP1R0M50 CEALNP1R0M50 CEJQNP1R0M50 CEJQNP1R0M50 CEJQNP2R2M35 CEJQNP1R0M50 CEJQNP1R0M50 CEJQNP4R7M16 CEJQNP4R7M16 CEJQNP4R7M16 CEJQNP4R7M16 CEJQ4R7M25

C

(GM-8027ZT/WL,GM-8127ZT/WL,GM-8127ZT/EW) CKSQYB392K50 (GM-8027ZT/E) CKSQYB472K50 (GM-8027ZT/WL,GM-8127ZT/WL,GM-8127ZT/EW) CKSQYB392K50 (GM-8027ZT/E) CKSQYB472K50 CEJQ221M6R3 CKSQYB104K25 CKSQYB104K25 CKSQYB104K25 CEJQ101M10 CEJQ221M6R3 CKSQYB104K25 CKSQYB472K50 CKSQYB392K50 CKSQYB472K50 CKSQYB392K50 CEJQ221M6R3 CKSQYB104K25 CKSQYB104K25 CKSQYB104K25 CEJQ101M10 CEJQ221M6R3 CKSQYB104K25 CKSQYB392K50 CKSQYB472K50 CKSQYB392K50 CKSQYB472K50 CEJQ221M6R3 CKSQYB104K25 CKSQYB104K25

D

(GM-8027ZT/WL,GM-8127ZT/EW) (GM-8127ZT/WL,GM-8027ZT/E) (GM-8027ZT/WL,GM-8127ZT/EW) (GM-8127ZT/WL,GM-8027ZT/E)

E

(GM-8027ZT/WL,GM-8127ZT/WL) (GM-8027ZT/E,GM-8127ZT/EW) (GM-8027ZT/WL,GM-8127ZT/WL) (GM-8027ZT/E,GM-8127ZT/EW)

F

GM-8027ZT/WL

27 7 8

5

6

1

2

3

4

A

=====Circuit Symbol and No.===Part Name --- ----------------------------------------------C C C C C C C C C C C C C C C C C C C C C C C C C 378 379 380 381 382 383 384 391 392 393 394 395 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 451 452 453

Part No. ------------------------CKSQYB473K16 CEJQ2R2M50 CEJQ1R0M50 CKSQYB474K25 CKSQYB474K25 CEJQ100M16 CKSQYB104K25 CKSQYB102K50 CKSQYB102K50 CKSQYB102K50 CKSQYB102K50 CKSQYB102K50 CEAT470M10 CEAT470M10 CCH1386 CEAT100M50 CEAT470M10 CCSQCH101J50 CEAT470M10 CEAT100M50 CKSQYB683K25 CEANP220M10 CKSQYB823K25 CEANP100M16 CEANP100M16 CKSQYB103K50 CEANP100M16 CEJQ221M6R3 CEJQ221M6R3 CKSQYB104K25

=====Circuit Symbol and No.===Part Name --- ----------------------------------------------D D D D D D D D D D D L 902 904 905 906 907 909 910 911 916 917 950 901 Diode Diode Diode Diode Diode Diode Diode Diode Diode Diode Diode Choke Coil 260mH

Part No. ------------------------1SS355 1SS355 ERA15-02VH UDZS5R6(B) HZU4R3(B3) MA152WK 1SS355 MA152WK UDZS18(B) UDZS18(B) UDZS7R5(B) CTH1240

B

RESISTORS
R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R 501 502 503 504 505 506 507 508 509 510 511 512 517 518 519 520 521 522 523 524 701 702 703 704 705 706 707 708 709 710 711 711 711 712 712 712 713 714 714 714 715 715 716 716 717 717 718 718 719 721 (GM-8027ZT/WL) (GM-8127ZT/WL,GM-8127ZT/EW) (GM-8027ZT/E) (GM-8027ZT/WL) (GM-8127ZT/WL,GM-8127ZT/EW) (GM-8027ZT/E) RS1/10S103J RS1/10S103J RS1/10S103J RS1/10S103J RS1/10S472J RS1/10S472J RS1/10S472J RS1/10S472J RS1/10S822J RS1/10S822J RS1/10S822J RS1/10S822J RS1/10S153J RS1/10S153J RS1/10S153J RS1/10S153J RS1/10S101J RS1/10S101J RS1/10S101J RS1/10S101J RS1/10S223J RS1/10S223J RS1/10S223J RS1/10S223J RS1/10S303J RS1/10S303J RS1/10S223J RS1/10S223J RS1/10S123J RS1/10S123J RS1/10S103J RS1/10S392J RS1/10S472J RS1/10S103J RS1/10S392J RS1/10S472J

0.68µF/50V

C

C C C C C

B
IC IC IC IC IC IC IC IC IC IC IC Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q Q D

Unit Number : : : : Unit Name :
501 502 701 702 703 801 802 803 901 902 903 801 802 803 831 832 833 903 904 906 907 909 910 911 912 913 915 916 950 901 IC IC IC IC IC IC IC IC IC IC IC Transistor Transistor Transistor Chip Transistor Chip Transistor Chip Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Transistor Chip Transistor Diode

CWM8077(GM-8027ZT/WL) CWM8075(GM-8027ZT/E) CWM8355(GM-8127ZT/WL) CWM8352(GM-8127ZT/EW) Amp Unit
NJM2068MD NJM2068MD NJM2068MD NJM2068MD NJM2068MD PAL006A PAL006A PAL006A NJM2930F08K BA178M05T M51957BFP DTA124EK DTA124EK DTA124EK 2SC2712 2SC2712 2SC2712 2SC3651 2SB1260 2SB1260 2SA1587 DTC114EK DTA114EK 2SD1757K DTC114EK DTC144EK DTA114TK 2SA1162 2SC2712 RM4LFJ10

MISCELLANEOUS
D

E

RS1/10S223J (GM-8027ZT/WL,GM-8127ZT/WL) RS1/10S223J (GM-8027ZT/E) RS1/10S183J (GM-8127ZT/EW) RS1/10S153J (GM-8027ZT/WL,GM-8127ZT/WL,GM-8127ZT/EW) RS1/10S151J (GM-8027ZT/E) RS1/10S471J (GM-8027ZT/WL,GM-8127ZT/WL,GM-8127ZT/EW) RS1/10S151J (GM-8027ZT/E) RS1/10S471J (GM-8027ZT/WL,GM-8127ZT/WL,GM-8127ZT/EW) RS1/10S392J (GM-8027ZT/E) RS1/10S332J (GM-8027ZT/WL,GM-8127ZT/WL,GM-8127ZT/EW) RS1/10S392J (GM-8027ZT/E) RS1/10S332J RS1/10S221J RS1/10S474J

F

28 1 2

GM-8027ZT/WL

3

4

5

6

7

8

=====Circuit Symbol and No.===Part Name --- ----------------------------------------------R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R R 722 723 724 725 726 727 731 731 732 732 733 733 734 734 735 735 735 736 801 802 803 831 832 833 834 835 836 901 902 907 908 909 910 911 912 914 916 917 918 919 921 924 928 929 930 931 932 933 934 935 936 937 938 939 940 950 951 952 (GM-8027ZT/WL,GM-8127ZT/WL) (GM-8027ZT/E,GM-8127ZT/EW) (GM-8027ZT/WL,GM-8127ZT/WL) (GM-8027ZT/E,GM-8127ZT/EW) (GM-8027ZT/WL,GM-8027ZT/E) (GM-8127ZT/WL,GM-8127ZT/EW) (GM-8027ZT/WL,GM-8027ZT/E) (GM-8127ZT/WL,GM-8127ZT/EW) (GM-8027ZT/WL,GM-8127ZT/WL) (GM-8027ZT/E) (GM-8127ZT/EW)

Part No. ------------------------RS1/10S474J RS1/10S101J RS1/10S101J RS1/10S101J RS1/10S101J RS1/10S101J RS1/10S472J RS1/10S182J RS1/10S472J RS1/10S182J RS1/10S102J RS1/10S272J RS1/10S102J RS1/10S272J RS1/10S122J RS1/10S182J RS1/10S222J RS1/10S223J RS1/10S184J RS1/10S184J RS1/10S184J RS1/10S271J RS1/10S271J RS1/10S271J RS1/10S472J RS1/10S472J RS1/10S472J RS1/10S472J RS1/8S222J RS1/10S153J RS1/10S6R8J RS1/10S103J RS1/10S181J RS1/10S103J RS1/10S391J RS1/10S221J RS1/8S121J RS1/8S151J RS1/8S222J RS1/8S222J RS1/10S474J RS1/10S471J RN1/10SE1102D RN1/10SE1801D RS1/10S222J RS1/10S103J RS1/10S333J RS1/10S333J RS1/10S272J RS1/10S183J RS1/10S103J RS1/4S101J RS1/4S101J RS1/10S432J RS1/10S512J RS1/8S272J RS1/10S182J RS1/10S183J C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C C 506 507 508 509 510 701 702 703 703 703 704 704 704 705 705 706 707 708 709 710 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 822 823 824 825 826 827 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 100µF/10V 100µF/10V CCSQCH101J50 CCSQCH101J50 CCSQCH101J50 CKSQYB473K25 CKSQYB473K25 CCSQCH101J50 CCSQCH101J50 CCSQCH101J50 CCSQCH221J50 CCSQCH271J50

A

(GM-8027ZT/WL) (GM-8027ZT/E) (GM-8127ZT/WL,GM-8127ZT/EW)

(GM-8027ZT/WL) CCSQCH101J50 (GM-8027ZT/E) CCSQCH221J50 (GM-8127ZT/WL,GM-8127ZT/EW) CCSQCH271J50 (GM-8027ZT/WL,GM-8127ZT/WL,GM-8027ZT/E) CKSQYB682K50 (GM-8127ZT/EW) CKSQYB103K50 CKSQYB473K25 CKSQYB224K16 CKSQYB473K25 CKSQYB473K25 CKSQYB473K25 CFTNA224J50 CFTNA224J50 CFTNA224J50 CFTNA224J50 CFTNA224J50 CFTNA224J50 CFTNA224J50 CFTNA224J50 CFTNA224J50 CFTNA224J50 CFTNA224J50 CFTNA224J50 CFTNA105J50 CFTNA105J50 CFTNA105J50 CEAT100M50 CEAT100M50 CEAT100M50 CEHAT221M25 CKSQYB104K25 CEHAT221M25 CKSQYB104K25 CEHAT221M25 CKSQYB104K25 CCH1390 CEAT1R0M50 CEAT471M25 CKSQYB473K25 CEAT221M10 CEAT1R0M50 CCH1282 CCH1282 CKSQYB473K25 CEAT221M10 CKSQYB473K25 CEHAT1R0M50 CCH1282 CKSQYB473K25 CKSQYB103K50 CKSQYB103K50 CKSQYB473K25 CKSQYB224K25 CKSQYB473K25 CKSQYB103K50 CEAT1R0M50

B

C

D

6800µF/16V

E

100µF/10V

CAPACITORS
C C C C C 501 502 503 504 505 CEAT4R7M50 CEAT4R7M50 CEAT4R7M50 CEAT4R7M50 CCSQCH101J50

F

GM-8027ZT/WL

29 7 8

5

6

1

2

3

4

A

=====Circuit Symbol and No.===Part Name --- ----------------------------------------------C C C C C C C C C C C C C C C C C C C C C C C C C 922 923 924 925 928 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 952 953 954 955 960 961

Part No. ------------------------CKSQYB473K25 CEAT4R7M50 CKSQYB471K50 CKSQYB104K25 CSZSR3R3M35 CKSQYB392K50 CKSQYB392K50 CKSQYB392K50 CKSQYB392K50 CKSQYB392K50 CKSQYB392K50 CKSQYB392K50 CKSQYB392K50 CKSQYB392K50 CKSQYB392K50 CKSQYB392K50 CKSQYB392K50 CKSQYB392K50 CKSQYB392K50 CKSQYB392K50 CKSQYB392K50 CKSQYB221K50 CKSQYB221K50 CKSQYB221K50 CKSQYB221K50 CKSQYB221K50 CKSQYB221K50

B

C

C C

C

Unit Number : CWM8205 Unit Name : Microphone Unit
Microphone CPM1011

MIC 401

D

E

F

30 1 2

GM-8027ZT/WL

3

4

5

6

7

8

6. ADJUSTMENT
- Jigs

A

B

GGD1153 (14P) GGD1245 (18P)

C

D

E

F

GM-8027ZT/WL

31 7 8

5

6

1

2

3

4

- Connection Diagram
A

KEX-M8527ZT/UC H/U EMV(DENSO)

20P 20P

20P 20P

12P 12P
GGD1305

6P 6P

10P 10P

14P 14P

8P 8P

B

Bullet connector (To DC Regulated Power Supply) GM-8027ZT/E AMP

Bullet connector (To DC Regulated Power Supply)

GGD1239

Bullet connector (To DC Regulated Power Supply) NAVI ECU(DENSO)

25P 25P
C

16P 16P
GGD1169 FR+ AUI+ AUIFR-

18P
GGD1240 Bullet connector SP Line

10P 10P

18P

GGD1306 SDVD(PANA)

24P 24P

10P 10P
RSE-ECU

32P 32P

20P
D

20P 20P
CDX-M8027ZT/E

12P 12P

16P

20P
MCD

32P
Bullet connector (To DC Regulated Power Supply)
E

12P

32P
GGD1304

24P
AV Unit

Rear Display(F-TEN)

16P 16P

16P 16P
F

Bullet connector (To DC Regulated Power Supply)
32 1 2

GM-8027ZT/WL

3

4

5

6

7

8

- Connection Diagram
KEX-M8527ZT/UC H/U EMV(DENSO)

A

20P 20P

20P 20P

12P 12P 6P

6P

10P 10P

14P 14P

8P 8P
B

GGD1302 Bullet connector (To DC Regulated Power Supply) GM-8027ZT/E AMP

GGD1239

Bullet connector (To DC Regulated Power Supply)

25P 25P
GGD1240

16P
Bullet connector (To DC Regulated Power Supply)

16P
Bullet connector SP Line NAVI ECU(DENSO) GGD1169

C

18P
FR+ FR-

10P 10P

18P

D

AUI-

AUI+

RSA Controller

24P
CDX-M8027ZT/E MCD

24P
E

32P 32P 20P

*Please connect only one Multi CD at the same time *MCD does not operate if RSA controller is not connected.

F

GM-8027ZT/WL

33 7 8

5

6

1

2

3

4

A

- Connection Diagram
KEX-M8527ZT/UC H/U EMV(DENSO)

20P 20P
B

20P 20P

12P 12P
GGD1304

6P

10P 10P

14P 14P

8P 8P

GGD1300
Bullet connector (To DC Regulated Power Supply) GM-8027ZT/E

GGD1239

AMP

Bullet connector (To DC Regulated Power Supply)

25P
C

16P
Bullet connector (To DC Regulated Power Supply)

25P
GGD1240

16P
Bullet connector SP Line

NAVI ECU(DENSO) GGD1169

18P
FR+ FR-

10P 10P

18P

D

AUI-

AUI+

Bullet connector (To DC Regulated Power Supply)

CDX-M8027ZT/E

12P
MCD
E

32P 32P 24P

*Please connect only one Multi CD at the same time

F

34 1 2

GM-8027ZT/WL

3

4

5

6

7

8

- Connection Diagram
FX-MG8527ZT/UC H/U
A

20P 20P

20P 20P

12P 12P
GGD1305
B

6P

10P

14P

Bullet connector (To DC Regulated Power Supply)

GM-8027ZT/E AMP

Bullet connector (To DC Regulated Power Supply)

25P 25P
GGD1240

16P 16P
GGD1169 FR+
C

18P

10P

Bullet connector SP Line

FR-

GGD1306

24P
SDVD(PANA)

10P 10P
RSE-ECU

32P 32P
D

20P 20P

24P

20P 20P

12P

16P

E

AV Unit

16P
Rear Display(F-TEN)

16P

16P 16P
Bullet connector (To DC Regulated Power Supply)
GM-8027ZT/WL

F

35 7 8

5

6

1

2

3

4

A

- Connection Diagram
FX-MG8527ZT/UC H/U

20P 20P
B

20P 20P

12P 12P 6P 10P 14P

GGD1302
Bullet connector (To DC Regulated Power Supply) GM-8027ZT/E

AMP

25P
C

16P
Bullet connector (To DC Regulated Power Supply)

25P
GGD1240

16P
Bullet connector GGD1169 SP Line

FR+

FR-

18P

10P

D

RSA Controller

24P 24P
E

32P

24P

F

36 1 2

GM-8027ZT/WL

3

4

5

6

7

8

- Connection Diagram
FX-MG8527ZT/UC H/U

A

GM-8027ZT/E AMP

20P 20P

12P

20P

25P 25P

16P 16P
GGD1169

B

GGD1240

Bullet connector (To DC Regulated Power Supply)

Bullet connector SP Line
C

- Connection Diagram
D

FX-MG8527ZT/EW(L) FX-MG8627ZT/EW(R) H/U

GM-8027ZT/E(L) GM-8027ZT/WL(R) GM-8127ZT/EW(L) GM-8127ZT/WL(R) AMP

20P 20P

12P

20P

25P 25P

16P
E

16P
GGD1169

GGD1240

Bullet connector (To DC Regulated Power Supply)

Bullet connector SP Line
F

GM-8027ZT/WL

37 7 8

5

6

1

2

3

4

A

- Connection Diagram

KEX-M8527ZT/EW(L) KEX-M8627ZT/EW(R) H/U EMV(DENSO)

20P 20P

20P 20P

12P 12P
GGD1304

6P

10P 10P

14P 14P

8P 8P

B

GGD1300
Bullet connector (To DC Regulated Power Supply)

GGD1239

GM-8027ZT/E(L) GM-8027ZT/WL(R) GM-8127ZT/EW(L) GM-8127ZT/WL(R)
C

Bullet connector (To DC Regulated Power Supply) Bullet connector (To DC Regulated Power Supply)

AMP

25P 25P
GGD1240
Bullet connector SP Line
D

16P 16P
GGD1169

18P
FR-

10P

FR+

Bullet connector (To DC Regulated Power Supply)

CDX-M8027ZT/E(L) CDX-M8127ZT/WL(R)
E

MCD

12P

32P 32P 24P

*Please connect only one Multi CD at the same time

F

38 1 2

GM-8027ZT/WL

3

4

5

6

7

8

6.1 ASL SECTION ADJUSTMENT Note:
1) Only if ASL parts (shaded ones below) get changed, you need adjustments for ASL. 2) When you disconnect the connector for ASL, you need to be careful. Refer to the sentence and the figure below.

A

When you disconnect the Cord Assy (CDE6990) that connects between DSP PCB and Microphone PCB, get your hand on the connector. Never pull the cable directly because it's very week and easy to be cut.
B

C

Hook your pointed fingers' nail, and you can disconnect it easily.

D

E

F

GM-8027ZT/WL

39 7 8

5

6

1

2

3

4

Preset conditions 1. Set VR401 around the center of the adjustable range.
A

Input Output (MIC) (Pin 74 : test point "ASL1") By using the jig(CAN-906,CAN-912), Observe the output at apply a sine wave of 100dBSPL ALS1 on a audio analyzer voltage directly to the MIC terminal. (Corresponding to analog (Close up as much as possible.) meter 7Hz). To connect the Amp unit and the DSP unit, use Jig GGD1153 and GGD1245.

Adjustment Adj.point Spec. VR401 314±30mV

B

Caution: 1) Before starting measurement, be sure to perform the initial check for the ASL adjustment jig. (The sound pressure level should be 100dBSPL at the sound emission section.) 2) Note that it may take 20 seconds or more to obtain waveforms, in some cases. Do not switch off the jig soon after starting measurement. Conditions: 1) This adjustment is sensitive to external shocks or wind. During adjustment, keep away the product and jig from them.
Audio analyzer DSP UNIT

Side A

DSP UNIT

Side B

C

ASL1

VR401

D Side A

AMP UNIT
CN906 CN905

MICROPHONE UNIT Side A

MIC MIC401

CN901

CN902

E

CN901
+B +B2
13.2V

CN902
RL+ RR+ RRFL+ FLFR+ FRSPD (SPD) L+ LR+ RN-MU ASGD MUTE ACC
13.2V

WFL+ WFR+ WFL- WFR- GND
13.2V 0V

(TX+) (TX-)

TX+ TX-

(TX+) TMUT TML+ MR+ (TX-) (MUTE) MLMR-

E

RL-

F

13.2V

+ DC Regulated - Power Supply
40 1 2
GM-8027ZT/WL

3

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7. GENERAL INFORMATION
7.1 DIAGNOSIS 7.1.1 DISASSEMBLY
- Removing the Case (Fig.1)
A

Case

1

Remove the two screws and then remove the Case.

- Notes the Cover (Fig.1) Never remove the Cover unless you need to do so because it is firmly adhered to the chassis with double-faced tape. Also, do not reuse the removed Cover and double-faced tape becuase they may probably be damaged.

1

1
B

Cover
- Removing the Shield Case (Fig.2)

Fig.1

Cover
1 2 1

Seal

1 2

Remove the two screws.

C

Remove the two screws and then remove the Shield Case with the Cord Assy, Seal and Cover on it.

Notes) When you install the Cover, put the Cord Assy fully inside the Cover. (Make the length of the visible part of heat-shrink tube of the Cord Assy to be 1 mm or shorter when the Cover is seen from above the top.)

2

D

Cord Assy
- Removing the DSP Unit (Fig.3)

Shield Case

Fig.2

DSP Unit

1

Remove the solder and then straight the tabs at three locations indicated.

1

1

1

E

Remove the DSP Unit

1

1

Fig.3

F

GM-8027ZT/WL

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6

1

2

3

4

A

- Removing the Shield Case (Fig.4)

1

Remove the five screws and then remove the Shield Case.

1

1

1

B

1

1

Shield Case
- Removing the Amp Unit (Fig.5)
C

Fig.4

4 3

4

4

Amp Unit
3

1 2

Remove the six screws.

Remove the two screws and then remove the Heat Sink.

Notes) Remove the Heat Sink without removing the Cover in Fig.1.

3
D

Remove the two screws.

4

Remove the three screws and then remove the Amp Unit.

2

1

1

1

1

1

1

2

Heat Sink
E

Fig.5

F

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GM-8027ZT/WL

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8

- "Pawl bending and soldering" points of the pawls for securing the base plate of a shielded case (bottom case).
· The portion marked by point) · The portion marked by is a point in which pawl bending and soldering are not performed. (Faulty pawl bending is a point in which pawl bending and soldering are necessary.

A

B

DSP UNIT

C

D

E

F

GM-8027ZT/WL

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6

1

2

3

4

A

7.1.2 CONNECTOR FUNCTION DESCRIPTION

B

A

B

C

A
+B +B2 WFL+ WFR+ WFL- WFR- GND E RL+ RLRR+ RRFL+ FLFR+ FR-

B
SPD
D

L+ L-

R+ R-

N-MU ASGD MUTE ACC

(TX+) (TX-)

TX+ TX-

(TX+) TMUT TML+ MR+ (TX-) (MUTE) MLMR-

(SPD)

E

F

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GM-8027ZT/WL

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7.2 IC
- Pin Functions (PD5726A, PD5792A)
Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32-62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80
20

Pin Name MUTE VCS2 VCS1 VDT VCK CVNSS MODEL0 NC RESET XOUT VSS XIN VCC NMI SPEED BSENS ASENS AVCINT NC AVCPW PEE AVCIN AVCOUT DSPOUT DSPIN DSPCK TESTIN TSOUT TSIN TSCK SMUTEIN NC THROU CALIB PWSENS SYSPW1 DSPRST DSPERR DSPCS2 DSPCS1 DSPACK DSPCD DPD ASLIN1 AVSS ASLIN2 VREF AVCC NAVMUTE DSPMUTE

I/O O O O O O I I O I

Format C C C C C

I I I I O O I O O I O I O I I I I O I O O I O O I O O I I I I O C C C C C C

C C C C C

C

C

Function and Operation Mute output SN761029 strobe output PM0017AM strobe output Data output for electronic volume Clock output for electronic volume Connect to VSS R handle /L handle select input Not used Reset input Crystal oscillating element connection pin GND Crystal oscillating element connection pin 5V Connect to VCC Speed sensor pulse input Back up power sense input ACC power sense input AVC-LAN data input Not used AVC-LAN driver power supply output Beep tone output AVC-LAN data input AVC-LAN data output DSPI/F serial data output DSPI/F serial data input DSPI/F serial clock output Test program start input Test serial data output Test serial data input Test serial clock input System mute input Not used LOW fixed terminal Power IC control output Power IC heat sense input System power output DSP hard reset output DSP error detect input TC9332F chip select 2 TC9332F chip select 1 DSP-IC ACK input DSP command/data output AD/DAC calibration output Difference of noise and signal input 1 VSS Difference of noise and signal input 2 A/D converter reference voltage input VCC Navigation mute input DSP mute output

A

B

C

D

E

*PD5726A, PD5792A
1
80 21

IC's marked by * are MOS type. Be careful in handling them because they are very liable to be damaged by electrostatic induction.

40 41 60

61

Format C

Meaning C MOS

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2

3

4

7.3 EXPLANATION 7.3.1 SYSTEM BLOCK DIAGRAM
A

1. 2DIN 1-1 2DIN

+B, ACC AVC-LAN
+B, ACC

SPEAKER 2DIN HEAD UNIT
B
L/R AVC-LAN

AMPLIFIER
PIONEER or OTHER MAKERS

1-2 2DIN RSA (OPTION)
+B, ACC

SPEAKER
C
(OPTION)

HEAD PHONE

L/R

REAR SEAT AUDIO
OTHER MAKERS

L/R AVC-LAN

2DIN HEAD UNIT

L/R AVC-LAN

AMPLIFIER
PIONEER or OTHER MAKERS

1-3 2DIN RSE (OPTION)
D
+B, ACC

SPEAKER 2DIN HEAD UNIT
L/R AVC-LAN

AMPLIFIER
PIONEER or OTHER MAKERS

E
L/R

AVC-LAN

L/R

L/R

DVD-P
OTHER MAKERS

AVC-LAN NTSC

RSE ECU
OTHER MAKERS

AVC-LAN NTSC

REAR DISPLAY
OTHER MAKERS

REMOTE CONTROLLER

INFRARED HEAD PHONE

F

L/R

EXTENSION UNIT
OTHER MAKERS

L/R

HEAD PHONE

46 1 2

GM-8027ZT/WL

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2. 1DIN 2-1 1DIN
+B, ACC

+B, ACC AVC-LAN

A

SPEAKER NAVI ECU
OTHER MAKERS AVC-LAN L/R RGB

EMV
OTHER MAKERS

1DIN HEAD UNIT

L/R AVC-LAN

AMPLIFIER
PIONEER or OTHER MAKERS

B

AVC-LAN

CD-CH

2-2 1DIN
+B, ACC

SPEAKER EMV
OTHER MAKERS

C

1DIN HEAD UNIT
AVC-LAN

L/R AVC-LAN

AMPLIFIER
PIONEER

AVC-LAN

CD-CH
D
PIONEER

2-3 1DIN
+B, ACC

L/R

SPEAKER NAVI ECU
OTHER MAKERS AVC-LAN L/R RGB

EMV
OTHER MAKERS

NTSC

1DIN HEAD UNIT

L/R AVC-LAN

AMPLIFIER
PIONEER

E

AVC-LAN

(

CD-CH DVD-CH
OPTION PIONEER

L/R

)

NTSC AVC-LAN

TV TUNER
OTHER MAKERS

F

GM-8027ZT/WL

47 7 8

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6

1

2

3

4

A

+B, ACC

2-4 1DIN RSA (OPTION)
+B, ACC

AVC-LAN

SPEAKER NAVI ECU
OTHER MAKERS L/R RGB

EMV
OTHER MAKERS

1DIN HEAD UNIT
AVC-LAN

L/R AVC-LAN

AMPLIFIER
PIONEER or OTHER MAKERS

B
AVC-LAN

RSA
AVC-LAN

CD-CH
C

2-5 1DIN RSE (OPTION)
+B, ACC

L/R

SPEAKER NAVI ECU
OTHER MAKERS RGB

EMV
OTHER MAKERS

NTSC

1DIN HEAD UNIT

L/R AVC-LAN

AMPLIFIER
PIONEER or OTHER MAKERS

D

AVC-LAN L/R L/R

L/R

DVD-P
OTHER MAKERS

AVC-LAN NTSC

RSE ECU
OTHER MAKERS AVC-LAN NTSC

AVC-LAN AVC-LAN

CD-CH
PIONEER

NTSC

L/R

E

EXTENSION UNIT
OTHER MAKERS L/R

REAR DISPLAY
OTHER MAKERS

L/R

L/R

TV TUNER
OTHER MAKERS

F

HEAD PHONE

REMOTE CONTROLLER

INFRARED HEAD PHONE

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7.3.2 OPERATIONAL FLOW CHART
Reset Start---OFF ---Power ON START | Hard ware reset cancel

A

<> Test program check(Unit checker) - Pin 27 HI/LOW input

Pin 27 LOW input Pin 17 LOW input and Pin 16 LOW input

Pin 27 HI input Unit checker program

Pin 17 LOW input or Pin 16 LOW input <> Back up, ACC confirmation - Pin 17 ACC/Pin 16 Back up

B

Microcomputer oscillation stop (Electronic power save)

Pin 17 HI input or Pin 16 HI input

Pin 17 HI input and Pin 16 HI input · ACC/Back up ON

Main loop Error(Communication error) | Forcibly OFF <> Bus communication Normal/Error Normal(Main unit communication normal) <> System ON/OFF ON - ON status =System OFF waiting · Power ON(Pin 66 H) · Mute OFF(Pin 1 L) · BEEP output available

C

OFF - OFF status =System ON waiting · Power ON(Pin 66 H) · Mute ON(Pin 1 H) · BEEP output available

D
<> DSP error confirmation · communication error:Serial IF · processing error:Pin 68 DSP error

Error return · DSP reset(Pin 9) | About 1 second Normal operation

<> ACC/Back up ON/OFF ACC ON/Back up ON Main loop

E

F

GM-8027ZT/WL

49 7 8

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6

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2

3

4

A

- DSP error check (Normal) DSPCS1(Pin70) DSPCS2(Pin69) DSPCK(Pin26)
4mS interval (Periodical communication)

B

DSPCS1 DSPCS2 DSPCK

C

- DSP error check ---Error continuation
D

DSPRST(Pin67)
About 1S interval

E

F

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8. OPERATIONS
There is no information to be shown in this chapter.

A

B

C

D

E

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PIONEER CORPORATION

4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, Japan PIONEER ELECTRONICS (USA) INC. P.O.Box 1760, Long Beach, CA 90801-1760 U.S.A. PIONEER EUROPE NV Haven 1087 Keetberglaan 1, 9120 Melsele, Belgium PIONEER ELECTRONICS ASIACENTRE PTE.LTD. 253 Alexandra Road, #04-01, Singapore 159936

C PIONEER CORPORATION 2002

K-ZZB. AUG. 2002 Printed in Japan