Pioneer KEX-M8406ZT/UC, KEX-M8406ZT-91/UC, KEX-M9406ZT/UC, KEX-M9406ZT-91/UC Service Manual
ORDER NO.
CRT2528
PUB. NO. CRT2528
AUDIO SYSTEM
HEAD UNIT
Manufactured for TOYOTA
by PIONEER CORPORATION
VEHICLE DESTINATION PRODUCED AFTER TOYOTA PART No. ID No. PIONEER MODEL No.
LEXUS GS430 U.S.A., CANADA August 2000 86120-3A521 P1718 KEX-M8406ZT/UC
LEXUS GS430 U.S.A., CANADA August 2000 86120-3A521 P1718 KEX-M8406ZT-91/UC
LEXUS GS430 U.S.A., CANADA August 2000 86120-3A750 P1723 KEX-M9406ZT/UC
LEXUS GS430 U.S.A., CANADA August 2000 86120-3A750 P1723 KEX-M9406ZT-91/UC
GS430
2
KEX-M8406ZT,M8406ZT-91,M9406ZT,M9406ZT-91
- Dolby noise reduction manufactured under license from Dolby Laboratories Licensing Corporation.
"Dolby" and the double-D symbol are trademarks of Dolby Laboratories Licensing Corporation.
- These models do not provide the test mode for CD changers.
- KEX-M8406ZT/UC and KEX-M9406ZT/UC have adopted AVC-LAN.
KEX-M8406ZT/UC
- Supplementary model is identical to the original except for the addition of following items.
Description Part No.
KEX-M8406ZT-91/UC KEX-M9406ZT-91/UC
Polyethylene Bag CEG1026 CEG1026
Carton CHA2025 CHA2025
Contain Box CHL4166 CHL4167
Protector CHP2331 CHP2331
KEX-M9406ZT/UC
ID No.P1718
ID No.P1723
- This service manual should be used together with the following manual(s):
Model Order No. Mech. Module Remarks
CX-631 CRT1640 2L Cassette Mech. Module:Mech.Description
CONTENTS
1. SAFETY INFORMATION ............................................3
2. EXPLODED VIEWS AND PARTS LIST.......................4
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM .....8
4. PCB CONNECTION DIAGRAM ................................22
5. ELECTRICAL PARTS LIST ........................................34
6. ADJUSTMENT..........................................................42
7. GENERAL INFORMATION .......................................46
7.1 DIAGNOSIS.......................................................46
7.1.1 DIAGNOSIS MODE .................................46
7.1.2 DISASSEMBLY ........................................50
7.1.3 CONNECTOR FUNCTION DESCRIPTION ..51
7.1.4 TROUBLESHOOTING..............................52
7.2 PARTS ................................................................53
7.2.1 IC ..............................................................53
7.2.2 DISPLAY...................................................56
7.3 EXPLANATION ..................................................57
7.3.1 SYSTEM BLOCK DIAGRAM ...................57
7.3.2 OPERATIONAL FLOW CHART ................58
8. OPERATIONS AND SPECIFICATIONS.....................59
3
KEX-M8406ZT,M8406ZT-91,M9406ZT,M9406ZT-91
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.
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.
4
KEX-M8406ZT,M8406ZT-91,M9406ZT,M9406ZT-91
2
2
2
2
61
3
61
1
1
1
60
4
50
50
52
23
49
51
23
53
39
39
40
31
61
56
54
55
24
25
27
26
32
34
35
36
56
55
54
61
57
43
42
58
59
38
41
28
29
30
33
48
46
23
45
47
23
23
23
61
23
20
21
23
37
23
37
5
2
22
2
2
2
2
15
16
61
9
9
9
11
13
12
63
62
19
14
17
7
8
8
18
8
6
10
44
2. EXPLODED VIEWS AND PARTS LIST
2.1 EXTERIOR
5
KEX-M8406ZT,M8406ZT-91,M9406ZT,M9406ZT-91
- EXTERIOR SECTION PARTS LIST
Mark No. Description Part No.
Mark No. Description Part No.
1 Screw BMZ26P050FMC
2 Screw BMZ30P050FMC
3 Case CNB2550
4 Holder CNC8972
5 Insulator CNM6849
6 Cushion CNM6935
7 Main Unit CWM7090
8 Screw BMZ30P080FMC
9 Screw BPZ30P060FSN
10 Terminal(CN202) CKF1059
11 Terminal(CN303) CKF1059
12 Connector(CN302) CKM1065
13 Connector(CN301) CKM1322
14 Plug(CN652) CKS3535
15 Plug(CN651) CKS3542
16 Connector(CN701) CKS3568
17 Antenna Jack(CN201) CKX1024
18 Holder CNC8711
19 Holder CNC8712
20 FM/AM Tuner Unit CWE1543
21 Holder CNC6774
22 Chassis Unit CXB5288
23 Screw BPZ26P100FMC
24 Button(EJECT) CAC4839
25 Button(AM) CAC4841
26 Button(TAPE) CAC4843
27 Button(FM) CAC4848
28 Button(1,2) CAC5274
29 Button(3,4) CAC5275
30 Button(5,6) CAC5276
31 Button(SEEK,TRACK) CAC6543
32 Button(DISC) CAC6544
33 Button(SCAN,MSG) CAC6545
34 Button(RDS) CAC6546
35 Button(TRAF) CAC6547
36 Button(TYPE) CAC6548
37 Holder CNC7052
38 Holder CNV4738
39 Holder CNV4739
40 Holder CNV4740
41 Holder CNV4741
42 Lighting Conductor CNV4883
43 Holder CNV5337
44 Keyboard Unit CWM7101
45 Socket(CN902) CKS3548
46 Socket(CN901) CKS3555
47 Socket(CN903) CKS3972
48 Rubber CNV4743
49 LCD Unit CWM7104
50 Screw BPZ26P100FMC
51 LCD CAW1594
52 Plug(CN951) CKS3574
53 Holder CNV6140
54 Knob Assy CXA9518
* 55 Knob CAA1401
56 Spring CBL-108
57 Grille Unit(M8406ZT) CXB5287
Grille Unit(M9406ZT) CXB5582
58 Door(M8406ZT) CAT2127
Door(M9406ZT) CAT2140
59 Spring CBH1371
60
Cassette Mechanism ModuleEXK3885
61 Screw IMS26P050FMC
62 Transistor(Q331) 2SB1185
63 Transistor(Q521,522) 2SB1185
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.
6
KEX-M8406ZT,M8406ZT-91,M9406ZT,M9406ZT-91
2.2 CASSETTE MECHANISM MODULE
7
KEX-M8406ZT,M8406ZT-91,M9406ZT,M9406ZT-91
1 Screw BSZ20P040FMC
2 Washer CBF1037
3 Washer CBF1038
4 Washer CBG1003
5 Deck Unit EWM1027
6 Screw(M2x5) EBA1028
7 Screw(M2x2.5) EBA1037
8 Spring EBH1531
9 Spring EBH1589
10 Connector(CN251) CKS3540
11 Spring EBH1515
12 Spring EBH1587
13 Spring EBH1517
14 Spring EBH1518
15 Spring EBH1519
16 Spring EBH1537
17 Cord EDD1027
18 Photo-interrupter
(EGN2,3) EGN1006
19 Photo-interrupter(EGN1) EGN1005
20 Roller ENR1031
21 Shaft ELA1362
22 Roller ELA1348
23 Arm ENC1490
24 Arm ENC1397
25 Guide ENC1519
26 Holder ENC1516
27 Lever ENC1448
28 Arm ENC1488
29 Roller ENR1023
30 Belt ENT1027
31 Gear ENV1347
32 Collar ENV1508
33 Gear ENV1350
34 Flywheel ENV1500
35 Worm Gear ENV1439
36 Worm Wheel ENV1440
37 Gear ENR1037
38 Lever ENV1533
39 Arm ENV1525
40 Gathering PCB ENX1037
41 Gathering PCB ENX1060
42 Switch(S1)(S2) ESG1004
43 Motor Unit(M2)(SUB) EXA1382
44 Chassis Unit EXA1559
45 Tube ENM1039
46 Roller ENR1027
47 Reel Unit EXA1560
48 Head Base Unit EXA1434
49 Lever Unit EXA1578
50 Gear Unit EXA1545
51 Frame Unit EXA1476
52 Lever Unit EXA1439
53 Head Assy(HD1) EXA1594
54 Motor Unit(M1)(MAIN) EXA1499
55 Washer HBF-179
56 Screw JGZ20P025FNI
57 Spring EBH1545
58 Washer YE20FUC
59 Pinch Roller Unit EXA1533
60 Pinch Roller Unit EXA1532
61 Capacitor(C1) CEAL4R7M35
Mark No. Description Part No. Mark No. Description Part No.
- CASSETTE MECHANISM MODULE SECTION PARTS LIST
8
KEX-M8406ZT,M8406ZT-91,M9406ZT,M9406ZT-91
A
1
234
B
C
D
12
34
Q203
Q3
L2 D5
L4 D7
25
26
Q201
AM RF
AM
OSC
FM
OSC
D231
CF52
CF51
T31
Q31
CF232
CF230
23
25
PA4026A
IC1
CF53
L52
PA4024A
IC2
DIVER
IC202
LA1061M
AM
CN201
SUB
ANT
MAIN
ANT
FIX
COMP
FMTV
AMTV
VCO
AMIFC
FMB
AMB
TUNB
19 20
17
15 21
14
13
11
6
2
IC201
PM2007A
PLL
XIN
XOUT
PDI
PCK
PDO
PCE
29
25
COMP
9
5
4
IC204
PM4006B
11
12
IC205
NJM2903M
RDS DECODER
CN251
CN252
CN253
IC251
HA12216F
TAPE EQUALIZER
MECHANISM DRIVER
IC351
PA2020A
Q271
B.U
BU
M
SUB
MOTOR
M
MAIN
MOTOR
10
+B
TAPE-L
MTL
MTL
VR301
VREF
6
22
14
17
2
51
53
17
7
18
19
5
2
NR
Q351
Q352
1
9
8
STBY
LOAD
LOAD
SWITCH
SWITCH
MODE
SENSE
FWD
SENSE
REV
SENSE
1
4
5
4
3
20
FWD
LcH
REV
LcH
23
8
1
64
23
8
1
64
41
910
34
63836
32
14 15 17 19
30
31
28
47
1
2
19
40 7
43
Lch
FMSL
AMSL
STO/AMDET
ST
COMP
FMSD
PNS
S-80736AN-D0
IC703
2
1
RESET
VDD
Q573
Q576
Q578
Q577
Q572
Q575
Q571
Q574
HA12181FP
IC203
AM NOISE
CANCELLER
3AM-L
16
Q
M
Q
M
FM-L
AM-L
Q551
Q552
Q553
LCD
BACK
LIGHT
SWITCH
BLPW
BLPW
IC951
LCD DRIVER
LC75874W
69 70
LCD
10
1
2
CN951
20
1
4
5
10
7
SWD5V
CN652
1
10
9
CN903
CN901
CN902
CN651
39
BU
CN701
4
3
20
LCDBL
16
17
18
19
9
8
7
6
20
18
2
3
1
57K
25
57K
13
15
12
RESET
Q706
88
TAPEMUTE
AUD+B
TAPE-L
Q201
SL
51
DSSILL
XIN
XOUT
S
PD
PCK
PDO
PCE
1
5,6
13
ST
SD
38
37
A
MAIN UNIT
FM/AM TUNER UNIT
B
C
DECK UNIT
D
PCB UNIT
E
REEL PCB
G
LCD UNIT
7
9
18
10
3
70µs
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM
3.1 BLOCK DIAGRAM
9
KEX-M8406ZT,M8406ZT-91,M9406ZT,M9406ZT-91
5
6
7
8
A
B
C
D
5
6
7
8
Q528
Q530
Q527
Q529
Q531
BU
Q521
Q522
Q525
Q526
ILLUMINATION
DIMMER
CONTROL
ACC
BU
Q501
Q323
5V
REGULATOR
VDD5V
VDD
Q332
Q331
AUD+B
TUNB
BU
8V
REGULATOR
Q608
VDD SWITCH
VDD
SYSPW
Q337-1
Q336
Q337-2
Q335
Q302
ASEN
Q301
BSEN
Q303
ISEN
BU
Q359
Q360
Q358
TUNB
TC74HC4066AF
IC781
ANALOG
SWITCH
NJM2068MD
IC703
NJM2068MD
IC702
Q709
Q603
Q607
UNBAL BAL
NJM2068MD
MIX AMP
IC701
10
8
L+
L-
11
9
6,12
ANSW
Q205
IC203
9
16
Q703
MUTE
Q705
MUTE
Q701
AM-L
TUNER-L
2
1
2
1
2
1
KEY
MATRIX
19 20
65
S903 EJECT
14322
POWER
VOLGND
ENC1M
ENC2P
CN901
24
21
4
15
CN651
KD1
POWER
ENC1M
POWER
53
54
55
S901
POWER-VOL
TAPE-L
AMMT
FMMT
AMMT
FMMT
37
38
51
ENC1P
DSSILL
SYSTEM CONTROLLER
IC601
PDI
PCK
PDO
PCE
SL
SD
95
90
ST
89
AMPW
AMPW
44
FMPW
43
AUD+B
73
75
23
ASEN
BSEN
ISEN
HA12187FP
IC681
AVC LAN
6
5
TX+
TX-
50
SYSMUTE
IPPW
8
1
2
TX
RX
RX
TX
IPPW
ANSW
22
30
29
100
CN301
CN302
BU
ACC
MUTE
ILL+
+B
ACC
ILL-
FMPW
AMB
FMB
Q335
Q336
F
KEYBOARD UNIT
PD5579A
ENC2M
ENC1P
KD1
KST2
S902
AUDIO-TUNE
21
10
13 8
17
KST2
ENC1M
ENC1P
ENC2M
ENC2P
12
3
22
KST259KD1
67
ENC2M86ENC2P
87
52
SYSPW
10
KEX-M8406ZT,M8406ZT-91,M9406ZT,M9406ZT-91
A
1
234
B
C
D
12
34
3.2 MAIN UNIT(GUIDE PAGE)
Note: When ordering service parts, be sure to refer to “EXPLODED VIEWS AND PARTS LIST” or “ELECTRICAL PARTS
LIST”.
A
CASSETTE MECHANISM MODULE
SYSTEM MUTE
MIX AMP
TAPE MUTE
TUNER MUTE
RBDS DECODER
AM PNS
FM DIVERSITY
PLL
FM:-26dBs(400Hz,30%)
AM:-16dBs(400Hz,30%)
TAPE:- 8dBs
FM:-18dBs
AM:-18dBs
TAPE:-4dBs
AM
FM
AM
AM
AM
AM
AM
FM
AM
FM
B
A
MAIN UNIT
C
D E
F
CN901
A-a
A-aA-a A-b A-b
A-aA-a
A-b A-b
A-b A-b
A-a A-a
Large size
SCH diagram
Guide page
Detailed page
11
KEX-M8406ZT,M8406ZT-91,M9406ZT,M9406ZT-91
5
6
7
8
A
B
C
D
5
6
7
8
A
8V
5V
ILL 8V REGULATOR
ILL DIMMER CONTROL
ANALOG SW CONTROL
AND BU MUTE
LCDBL DRIVE
ILL DRIVE
AVC LAN
MUTE
5V REGULATOR
AUDIO 8V REGULATOR
BU ACC ILL SENSE
ANALOG SWITCH
AUDIO 4V
UNBAL BAL
RESET
FM:-13dBs
AM:-13dBs
TAPE:+1dBs
FM:-13dBs
AM:-13dBs
TAPE:+1dBs
8V
F
CN902
ILL DIRECT SOURCE DRIVE
A-b
12
KEX-M8406ZT,M8406ZT-91,M9406ZT,M9406ZT-91
A
1
234
B
C
D
12
34
A-a
A-a
A-b
FM DIVERSITY
PLL
FM:-26dBs(400Hz,30%)
AM:-16dBs(400Hz,30%)
AM
FM
B
A
MAIN UNIT
F
CN901
1
2
3
13
KEX-M8406ZT,M8406ZT-91,M9406ZT,M9406ZT-91
5
6
7
8
A
B
C
D
5
6
7
8
A-a
A-a
A-b
CASSETTE MECHANISM MODULE
UNBAL BAL
SYSTEM MUTE
MIX AMP
TAPE MUTE
TUNER MUTE
RBDS DECODER
AM PNS
TAPE:- 8dBs
FM:-18dBs
AM:-18dBs
TAPE:-4dBs
FM:-13dBs
AM:-13dB
TAPE:+1d
AM
AM
AM
AM
AM
FM
AM
FM
C
D E
4
5
14
KEX-M8406ZT,M8406ZT-91,M9406ZT,M9406ZT-91
A
1
234
B
C
D
12
34
A-a
A-b
A-b
5V
ILL 8V REGULATOR
ILL DIMMER CONTROL
ANALOG SW CONTROL
AND BU MUTE
ILL DIRECT SOURCE DRIVE
LCDBL DRIVE
ILL DRIVE
AVC LAN
MUTE
5V REGULATOR
8V
F
CN902
1
2
3
15
KEX-M8406ZT,M8406ZT-91,M9406ZT,M9406ZT-91
5
6
7
8
A
B
C
D
5
6
7
8
A-b
A-a
A-b
8V
5V
5V REGULATOR
AUDIO 8V REGULATOR
BU ACC ILL SENSE
ANALOG SWITCH
AUDIO 4V
RESET
FM:-13dBs
AM:-13dBs
TAPE:+1dBs
FM:-13dBs
AM:-13dBs
TAPE:+1dBs
4
5
16
KEX-M8406ZT,M8406ZT-91,M9406ZT,M9406ZT-91
A
1
234
B
C
D
12
34
3.3 FM/AM TUNER UNIT
B
FM
AM
FM
FM
FM
FM
FM
FM
AM
AM
AM
AM
AM
FM,AM
FM,AM
FM,AM
FM,AM
FM,AM
FM,AM
AM
FM
FM
AM
FM
FM
AMAMAM AM
AM RF
FM FRONT END
FM OSC
AM OSC
B
A
FM/AM TUNER UNIT
KEX-M8406ZT,M8406ZT-91,M9406ZT,M9406ZT-91
5
6
7
8
A
B
C
D
5
6
7
8
17
B
FM
FM
FM
FM
FM
AM
AM
AM
AM
AM
FM,AM
FM,AM
PNS
FM IF
18
KEX-M8406ZT,M8406ZT-91,M9406ZT,M9406ZT-91
A
1
234
B
C
D
12
34
3.4 CASSETTE MECHANISM MODULE
C
DECK UNIT
B/C
HA12216F
11
12
13
14
15
16
17
18
19
20
40
39
38
37
36
35
34
33
32
31
30
292827
26
252423
22
21
1
234
5
678
9
10
R256
180
R291
0R0
C271
1/50
R283 0R0
R284 0R0
R282 0R0
C253 390P
C254 390P
C252 390P
C251 390P
R281 0R0
R255
180
C256
R01
R258
18K
R402
3R3K
R403 910
R275
47K
R293
0R0
C272
R1
R285 0R0
HD1
HEAD ASSY
EXA1594
TEST TAPE
NCT-150
(400Hz, 200nWb/m)
RL
RR
FR
FL
C302
R1
VR302
33K(B)
-8.24dBs(300mV)±1dB
Fwd-R
Fwd-L
Rev-R
Rev-L
NFI(L)
RIN(L)
RIP
FIN(L)
GND
GND
FIN(R)
VREF
RIN(R)
NFI(R)
M-OUT(R)
EQOUT(R)
TAI(R)
BIAS
RAI(R)
PBOUT(R)
DET(L)
MUTE
MSGV(R)
MAOUT
MSI
MSDET
MSGV
F/R
120/70
NR
MOUT(L)
EQOUT(L)
TAI(L)
NC
RAI(L)
PBOUT(L)
NC
DET(L)
MSGV(S)
CN252
CN251
DOLBY B NR
IC251
VR301
33K(B)
C310
R1
C309
R1
R321
0R0
VCC
CCP1280
CCP1280
NC
MSOUT
NC
NC
R260
13K
R262
270K
C401
4700P
R401
12K
R276
100K
C402
R33
C404
R01
C403
R022
R288
0R0
R274
0R0
R289
0R0
R273
0R0
R272
0R0
R404
270K
C405
R033
R2
22
R278
100K
Q271
2SC4116
R292
0R0
R271
18K
C301
R1
R294
0R0
R259
13K
C255
R01
R257
18K
R261
270K
C
A
CN701
19
KEX-M8406ZT,M8406ZT-91,M9406ZT,M9406ZT-91
5
6
7
8
A
B
C
D
5
6
7
8
E
D
C
SWITCHES:
PCB UNIT
S1:LOAD SWITCH..........EJECT-PLAY
S2:70µs SWITCH...............ON-OFF
The underlined indicates the switch position.
R275
47K
R351 1K
R352 1K
R353 1K
R354 1K
R373 0R0
R355
270K
C352
3900P
R362
180
C351 R22
C354 R01
R374 0R0
C355
R1
D351
1SS355
M1 MOTOR UNIT
(MAIN MOTOR)
EXA1499
M2
MOTOR UNIT
(SUB MOTOR)
EXA1382
RS3
RS2
RS1
SC2
SC1
TAB
MC
CE
VCC2
NC
VCC
MCS
RRS
FRS
RSB
C
TAB
MS2
NC
NC
MM
SM1
RRS
GND
FRS
mtl
RSB
load
CN253
CN254
MECHANISM
DRIVER
IC351 PA2020A
R375 0R0
R404
270K
R033
R277
220K
R278
100K
PCB UNIT
REEL PCB
S1 LOAD
ESG1004
S2
ESG1004
70µs
MODE
SENSE
EGN1
EGN1005
EGN2
EGN1006
FWD END
SENSE
EGN3
EGN1006
REV END
SENSE
7
7
8
NM
MCS
R357
4R7K
R358
10K
C353
R01
R359
10K
C356
R01
R360
1K
R361
6R2K
R356
2K
Q351
2SB1260
Q352
2SC4102
RES
NES
8
L1
C1
4R7/35
E
D
20
KEX-M8406ZT,M8406ZT-91,M9406ZT,M9406ZT-91
A
1
234
B
C
D
12
34
3.5 LCD UNIT, KEYBOARD UNIT
F G
8V100mA
LCD UNIT
G
21
KEX-M8406ZT,M8406ZT-91,M9406ZT,M9406ZT-91
5
6
7
8
A
B
C
D
5
6
7
8
F
KEYBOARD UNIT
CN651
CN652
8V60mA
IL901-905,907,909,910,912-915:
F
A
A
22
KEX-M8406ZT,M8406ZT-91,M9406ZT,M9406ZT-91
A
1
234
B
C
D
12
34
MAIN UNIT
4. PCB CONNECTION DIAGRAM
4.1 MAIN 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
Capacitor
Connector
P.C.Board
Chip Part
SIDE A
SIDE B
A
ANTENNA
1
2
B
A
23
KEX-M8406ZT,M8406ZT-91,M9406ZT,M9406ZT-91
5
6
7
8
A
B
C
D
5
6
7
8
FRONT
C
F
CN251
CN901
F
CN902
SIDE A
A
24
KEX-M8406ZT,M8406ZT-91,M9406ZT,M9406ZT-91
A
1
234
B
C
D
12
34
A
MAIN UNIT
A
25
KEX-M8406ZT,M8406ZT-91,M9406ZT,M9406ZT-91
5
6
7
8
A
B
C
D
5
6
7
8
SIDE B
A
26
KEX-M8406ZT,M8406ZT-91,M9406ZT,M9406ZT-91
A
1
234
B
C
D
12
34
4.2 FM/AM TUNER UNIT
B
SIDE A
FM/AM TUNER UNIT
A
B
27
KEX-M8406ZT,M8406ZT-91,M9406ZT,M9406ZT-91
1
2
3
4
A
B
C
D
1
2
3
4
B
SIDE B
FM/AM TUNER UNIT
B
28
KEX-M8406ZT,M8406ZT-91,M9406ZT,M9406ZT-91
A
1
234
B
C
D
12
34
4.3 CASSETTE MACHANISM MODULE
C
IC,Q ADJ
VR302
IC351
IC251
Q351
Q352
VR301
HEAD
ASSY
M2
CN253
CN254
CN252
Q351
Q352
IC351
C354
C352
C351
C353
C356
C355
R355
R362
R375
R373
R374
R358
R357
R361
R360
R359
D351
R356
R354
R353
R352
R351
Q271
R275
R274
R273
R272
R288
R289
R287
R322
R321
R290
R276
R278
R277
R260
R258
R254
R252
R253
C253
R261
R259
R403
R284
R282
R281
R283
R294
R292
C251
R262
R256
R291
VR302
VR301
R251
C301
C272
C256
C254
C252
R257
R293
R255
C255
R271
R285
C310
C302
C405
C309
C402
C401
C403
C404
R404
IC251
R402
R401
Q271
E
D
C322
C271
C321
CN251
1
5
2
10
15
20
19
A
CN701
C
DECK UNIT
C
DECK UNIT
SIDE A
SIDE B
29
KEX-M8406ZT,M8406ZT-91,M9406ZT,M9406ZT-91
1
2
3
4
A
B
C
D
1
2
3
4
ED
1
2
3
4
5
6
7
8
6
5
4
3
2
1
L1
RED
M
M1
MOTOR UNIT
(MAIN MOTOR)
LOAD SW
S1
70µs SW
S2
MODE SENSE
EGN1
D
PCB UNIT
D
PCB UNIT
C
CN253
E
D
E
REEL UNIT
SIDE A
SIDE B
30
KEX-M8406ZT,M8406ZT-91,M9406ZT,M9406ZT-91
A
1
234
B
C
D
12
34
4.4 KEYBOARD UNIT
F
F
KEYBOARD UNIT
CN651
CN652
CN951
AA
D
SIDE A
31
KEX-M8406ZT,M8406ZT-91,M9406ZT,M9406ZT-91
1
2
3
4
A
B
C
D
1
2
3
4
F
POWER
1
SEEK
TRACK
SEEK
TRACK
23
EJECT
AUDIO
RDS
TRAF
TYPE
DISC
TAPE
FMAM
4
5
6
SCAN
MSG
F
KEYBOARD UNIT
SIDE B
32
KEX-M8406ZT,M8406ZT-91,M9406ZT,M9406ZT-91
A
1
234
B
C
D
12
34
4.5 LCD UNIT
G
G
LCD UNIT
F
CN903
SIDE A
33
KEX-M8406ZT,M8406ZT-91,M9406ZT,M9406ZT-91
1
2
3
4
A
B
C
D
1
2
3
4
G
SIDE B
LCD UNIT
G
34
KEX-M8406ZT,M8406ZT-91,M9406ZT,M9406ZT-91
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.....
Unit Number : CWE1543
Unit Name : FM/AM Tuner Unit
MISCELLANEOUS
IC 1 IC PA4026A
IC 2 IC PA4024A
Q 1 Chip Transistor 2SC2712
Q 3 FET 3SK263
Q 5 Transistor 2SK1067
Q 31 Chip Transistor 2SC2712
Q 151 Transistor DTC144EU
Q 165 Transistor 2SC4116
Q 201 FET 2SK291
Q 202 Chip Transistor 2SC2712
Q 203 FET 2SK2373
D 3 Diode 1SV251
D 4 Diode 1SV250
D 5 Diode KV1410-F1
D 6 Diode MA157
D 7 Diode KV1410-F1
D 8 Diode KV1410-F1
D 9 Diode KV1410-F1
D 10 Diode 1SV250
D 201 Diode MA157
D 202 Diode 1SV251
D 231 Diode SVC253
L 1 Inductor LCTBR12K2125
L 2 Air-core Coil CTC1152
L 3 Air-core Coil CTC1152
L 4 Air-core Coil CTC1151
L 5 Coil CTC1147
L 6 Air-core Coil CTC1153
L 40 Inductor LCTBR15K1608
L 51 Ferri-Inductor LAU150K
L 52 Coil CTC1136
L 201 Ferri-Inductor LAU4R7K
L 202 Ferri-Inductor LAU330K
L 203 Inductor CTF1371
L 208 Inductor LAU390K
L 209 Inductor LCTA680J3225
L 210 Coil CTB1103
L 231 Inductor LAU3R3J
T 31 Coil CTE1116
TC 1 Trimmer CCL1019
TC 2 Trimmer CCL1019
TC 3 Trimmer CCL1019
CF 25 Ceramic Filter CTF1292
CF 51 Ceramic Filter CTF1292
CF 52 Ceramic Filter CTF1292
CF 53 Ceramic Filter CTF1292
CF 230 Crystal Filter CTF1262
CF 232 Ceramic Filter CTF1348
X 151 Radiator 918.5Hz CSS1365
X 231 Crystal Resonator 10.26MHz CSS1111
VR 101 Semi-fixed 15kΩ(B) CCP1230
VR 151 Semi-fixed 10kΩ(B) CCP1229
VR 154 Semi-fixed 150kΩ(B) CCP1236
VR 156 Semi-fixed 100kΩ(B) CCP1235
RESISTORS
R 3 RS1/16S223J
R 4 RS1/16S101J
R 6 RS1/16S101J
R 8 RS1/16S332J
R 9 RS1/16S823J
R 10 RS1/16S223J
R 11 RS1/16S124J
R 12 RS1/16S474J
R 15 RS1/16S161J
R 16 RS1/16S104J
R 17 RS1/16S332J
R 18 RS1/16S332J
R 19 RS1/16S154J
R 21 RS1/16S332J
R 22 RS1/16S510J
R 24 RS1/16S101J
R 25 RS1/16S221J
R 26 RS1/16S102J
R 31 RS1/16S470J
R 32 RS1/16S912J
R 33 RS1/16S912J
R 34 RS1/16S331J
R 35 RS1/16S331J
R 51 RS1/16S331J
R 55 RS1/16S102J
R 56 RS1/16S823J
R 61 RS1/16S392J
R 62 RS1/16S273J
R 103 RS1/16S333J
R 104 RS1/16S334J
R 105 RS1/16S683J
R 107 RS1/16S222J
R 152 RS1/16S393J
R 155 RS1/16S393J
R 157 RS1/10S223J
R 160 RS1/16S222J
R 161 RS1/16S563J
R 162 RS1/16S225J
R 163 RS1/16S222J
R 164 RS1/16S823J
R 165 RS1/16S102J
R 201 RS1/16S103J
R 202 RS1/16S103J
R 203 RS1/16S225J
R 204 RS1/16S472J
R 205 RS1/16S471J
R 206 RS1/16S220J
R 207 RS1/16S101J
R 208 RS1/16S102J
R 210 RS1/16S125J
=====Circuit Symbol and No.===Part Name Part No.
--- ------ ------------------------------------------ -------------------------
=====Circuit Symbol and No.===Part Name Part No.
--- ------ ------------------------------------------ -------------------------
B
35
KEX-M8406ZT,M8406ZT-91,M9406ZT,M9406ZT-91
R 211 RS1/16S223J
R 214 RS1/16S393J
R 215 RS1/16S104J
R 230 RS1/16S0R0J
R 231 RS1/16S242J
R 232 RS1/16S473J
R 237 RS1/16S103J
R 238 RS1/16S104J
R 239 RS1/16S104J
R 240 RS1/16S103J
R 241 RS1/16S202J
R 243 RS1/16S123J
R 244 RS1/16S103J
R 246 RS1/16S0R0J
R 247 RS1/10S303J
R 248 RS1/16S0R0J
R 250 RS1/16S0R0J
CAPACITORS
C 1 CCSRCH220J50
C 2 CKSRYB222K50
C 3 CCSRCH4R0D50
C 5 CKSRYB222K50
C 6 CKSQYB473K16
C 7 CKSQYB473K16
C 8 CKSQYB104K16
C 9 CKSRYB222K50
C 10 CEAL1R0M50
C 11 CCSRCH470J50
C 12 CCSRCJ3R0C50
C 13 CKSRYB222K50
C 15 CCSRCJ3R0D50
C 17 CCSRCH120J50
C 18 CKSRYB103K25
C 19 CCSRCH120J50
C 20 CKSRYB222K50
C 21 CEAL100M16
C 22 CCSRRH100D50
C 23 CCSRRH150J50
C 24 CCSRCH471J50
C 30 CCSRRH201J50
C 31 CKSRYB103K25
C 32 CKSQYB473K16
C 33 CCSRCH220J50
C 34 CCSRCH4R0D50
C 41 CKSQYB104K16
C 51 CKSRYB223K25
C 52 CKSRYB103K25
C 54 CCSRCH470J50
C 55 CKSQYB223K25
C 56 CKSQYB104K16
C 57 CKSRYB472K50
C 58 CEJA330M10
C 59 CKSRYB103K25
C 61 CCSRCH270J50
C 62 CKSRYB103K25
C 63 CEALR22M50
C 65 CKSQYB104K16
C 101 CEALNP100M10
C 102 CKSRYB182K50
C 103 CKSQYB682K50
C 104 CEAL2R2M50
C 105 CKSRYB103K25
C 106 CCSRCH151J50
C 107 CKSRYB103K25
C 151 CKSRYB562K25
C 152 CKSQYB104K16
C 153 CEAL3R3M50
C 154 CKSQYB104K16
C 157 CEAL3R3M50
C 158 CKSYB474K16
C 159 CEAL220M6R3
C 160 CKSQYB104K16
C 161 CKSQYB104K16
C 162 CEAL3R3M50
C 163 CKSRYB102K50
C 165 CCSRCH100D50
C 201 CKSRYB103K25
C 202 CCSRCH100D50
C 203 CKSRYB332K50
C 204 CKSQYB473K16
C 205 CKSQYB473K16
C 206 CKSRYB103K25
C 207 CCSRCH120J50
C 211 CCSRCH560J50
C 212 CEAL680M10
C 213 CKSRYB103K25
C 214 CKSQYB225K10
C 215 CCSRCH680J50
C 216 CCSRCH101J50
C 217 CEAL2R2M50
C 219 CKSRYB223K25
C 220 CKSRYB103K25
C 221 CKSRYB103K25
C 230 CKSQYB104K16
C 231 CCSRCH330J50
C 232 CCSRCH150J50
C 233 CKSRYB103K25
C 234 CEJA330M10
C 235 CKSRYB332K50
C 236 CKSQYB473K16
C 237 CCSRTH180J50
C 239 CKSRYB103K25
C 240 CKSYB104K16
C 241 CKSQYB104K16
C 242 CEALR47M50
C 244 CKSQYB473K16
C 245 CKSQYB103K25
C 248 CKSQYB334K16
C 250 CCSRCJ3R0C50
Unit Number : CWM7090
Unit Name : Main Unit
MISCELLANEOUS
IC 201 IC PM2007A
IC 202 IC LA1061M
IC 203 IC HA12181FP
IC 204 IC PM4006B
IC 205 IC NJM2903M
IC 601 IC PD5579A
IC 602 IC S-80736AN-D0
IC 681 IC HA12187FP
IC 701 IC NJM2068MD
IC 702 IC NJM2068MD
IC 703 IC NJM2068MD
IC 781 IC TC74HC4066AF
Q 201 Chip Transistor 2SC2712
Q 202 Transistor IMH11A
Q 203 Transistor IMX1
Q 204 Chip Transistor 2SC2712
Q 205 Chip Transistor 2SC2712
Q 206 Chip Transistor 2SC2712
Q 301 Chip Transistor 2SC2712
Q 302 Transistor DTC144TK
=====Circuit Symbol and No.===Part Name Part No.
--- ------ ------------------------------------------ -------------------------
=====Circuit Symbol and No.===Part Name Part No.
--- ------ ------------------------------------------ -------------------------
A
36
KEX-M8406ZT,M8406ZT-91,M9406ZT,M9406ZT-91
Q 303 Transistor DTC144TK
Q 323 Transistor 2SD2318F5
Q 331 Transistor 2SB1185
Q 332 Transistor IMX1
Q 335 Transistor DTB123EK
Q 336 Transistor DTB123EK
Q 337 Transistor IMX1
Q 357 Transistor DTC114EK
Q 358 Transistor DTA114EK
Q 359 Transistor DTC114EK
Q 360 Transistor DTA114EK
Q 368 Chip Transistor 2SC2712
Q 501 Transistor 2SA1162
Q 521 Transistor 2SB1185
Q 522 Transistor 2SB1185
Q 525 Transistor 2SD1767
Q 526 Chip Transistor 2SC2712
Q 527 Transistor 2SA1797
Q 528 Transistor 2SA1797
Q 529 Transistor 2SA1162
Q 530 Transistor 2SA1162
Q 531 Transistor IMD3A
Q 551 Transistor 2SA1797
Q 552 Transistor 2SA1162
Q 553 Transistor IMD3A
Q 571 Transistor 2SA1797
Q 572 Transistor 2SA1797
Q 573 Transistor 2SA1797
Q 574 Transistor 2SA1162
Q 575 Transistor 2SA1162
Q 576 Transistor 2SA1162
Q 577 Transistor DTC123YK
Q 578 Transistor DTA114EK
Q 601 Transistor DTA144EK
Q 602 Transistor 2SA1162
Q 603 Transistor DTA114EK
Q 607 Chip Transistor 2SC2712
Q 608 Transistor DTA114EK
Q 701 Transistor IMH4
Q 702 Transistor IMX1
Q 703 Transistor IMH4
Q 704 Transistor IMH4
Q 705 Transistor IMH4
Q 706 Transistor IMH4
Q 707 Transistor IMH4
Q 708 Transistor 2SC2412K
Q 709 Transistor IMH4
Q 710 Transistor IMH4
D 201 Diode 1SS355
D 202 Diode 1SV241
D 203 Diode 1SV241
D 204 Diode 1SS355
D 205 Diode MA152WK
D 206 Diode DAP202K
D 301 Diode ERC05-10B
D 302 Diode HZU8R2(B1)
D 303 Diode HZU8R2(B1)
D 304 Diode HZU8R2(B1)
D 306 Diode 1SS355
D 307 Diode 1SS355
D 321 Diode ERA15-02VH
D 322 Diode UDZS5R6(B)
D 331 Diode 1SS355
D 332 Diode HZU8R2(B1)
D 333 Diode 1SS355
D 334 Diode MA152WK
D 354 Diode UDZ20(B)
D 355 Diode HZU8R2(B3)
D 501 Diode UDZS8R2(B)
D 502 Diode MA153
D 571 Diode 1SS355
D 591 Diode UDZS10(B)
D 601 Diode 1SS355
D 656 Diode 1SS355
D 657 Diode 1SS355
D 658 Diode 1SS355
D 659 Diode 1SS355
D 660 Diode 1SS355
D 681 Diode UDZ18(B)
D 682 Diode UDZ18(B)
D 771 Diode HZU4LL(C)
D 781 Diode UDZS10(B)
D 782 Diode UDZS10(B)
D 783 Diode UDZS10(B)
D 784 Diode UDZS10(B)
L 201 Inductor LCTB4R7K3216
L 202 Inductor LCTA4R7J3225
L 203 Inductor LCTA4R7J2520
L 204 Inductor LCTA4R7J3225
L 205 Inductor LCTB6R8K3216
L 206 Inductor LCTB6R8K3216
L 207 Inductor LCTB6R8K3216
L 208 Inductor LCTA4R7J3225
L 209 Inductor LCTA561J4532
L 211 Inductor LCTA2R2J2520
L 212 Inductor LCTA101J3225
L 213 Inductor CTF1305
L 251 Inductor LCTA101J2520
L 252 Inductor LCTB2R2K2125
L 253 Inductor LCTB2R2K2125
L 301 Coil 350µH CTH1092
L 601 Inductor LCTB100K3216
L 602 Inductor LCTB100K3216
L 603 Inductor LCTB100K3216
L 605 Inductor CTF1305
L 607 Inductor CTF1305
L 608 Inductor CTF1305
L 609 Inductor CTF1305
CG 201 Surge Protector DSP-201M-A21F
CG 202 Surge Protector DSP-201M-A21F
X 201 Crystal Resonator 7.200MHz CSS1379
X 202 Crystal Resonator 4.332MHz CSS1056
X 601 Radiator 10.00MHz CSS1428
VR 201 Semi-fixed 10kΩ(B) CCP1396
VR 202 Semi-fixed 2.2kΩ(B) CCP1392
FU 301 Fuse 5A CEK1195
FM/AM Tuner Unit CWE1543
RESISTORS
R 201 RS1/10S103J
R 204 RS1/10S102J
R 205 RS1/10S471J
R 206 RS1/10S105J
R 207 RS1/10S472J
R 208 RS1/10S750J
R 209 RS1/10S750J
R 210 RS1/10S225J
R 211 RS1/10S225J
R 212 RS1/10S225J
=====Circuit Symbol and No.===Part Name Part No.
--- ------ ------------------------------------------ -------------------------
=====Circuit Symbol and No.===Part Name Part No.
--- ------ ------------------------------------------ -------------------------
37
KEX-M8406ZT,M8406ZT-91,M9406ZT,M9406ZT-91
R 213 RS1/10S225J
R 214 RS1/10S225J
R 215 RS1/10S225J
R 216 RS1/10S103J
R 217 RS1/10S102J
R 218 RS1/10S103J
R 219 RS1/10S103J
R 220 RS1/10S104J
R 221 RS1/10S473J
R 222 RS1/10S473J
R 223 RS1/10S224J
R 224 RS1/10S103J
R 225 RS1/10S334J
R 226 RS1/10S101J
R 227 RS1/10S101J
R 228 RS1/10S104J
R 229 RS1/10S104J
R 230 RS1/10S103J
R 231 RS1/10S182J
R 232 RS1/10S683J
R 233 RS1/10S153J
R 234 RS1/10S103J
R 235 RS1/10S561J
R 236 RS1/10S472J
R 237 RS1/10S682J
R 238 RS1/10S102J
R 239 RS1/10S222J
R 240 RS1/10S682J
R 241 RS1/10S472J
R 242 RS1/10S331J
R 243 RS1/10S102J
R 244 RS1/10S102J
R 245 RS1/10S473J
R 246 RS1/10S562J
R 247 RS1/10S222J
R 248 RS1/10S562J
R 249 RS1/10S222J
R 250 RS1/10S222J
R 251 RS1/10S102J
R 252 RS1/10S473J
R 253 RS1/10S472J
R 254 RS1/10S473J
R 255 2.2kΩ CCN1121
R 256 RS1/10S0R0J
R 258 RS1/10S393J
R 259 RS1/10S272J
R 260 RS1/10S392J
R 261 RS1/10S222J
R 262 RS1/10S392J
R 263 RS1/10S152J
R 264 RS1/10S332J
R 265 RS1/10S473J
R 266 RS1/10S223J
R 267 RS1/10S184J
R 268 RS1/10S104J
R 269 RS1/10S123J
R 270 RS1/10S105J
R 271 RS1/10S822J
R 272 RS1/10S822J
R 273 RS1/10S222J
R 274 RS1/10S102J
R 275 RS1/10S102J
R 276 RS1/10S102J
R 277 RS1/10S102J
R 278 RS1/10S102J
R 279 RS1/10S102J
R 280 RS1/10S102J
R 281 RS1/10S104J
R 282 RS1/10S562J
R 283 RS1/10S104J
R 284 RS1/10S333J
R 286 RS1/10S681J
R 287 RS1/10S222J
R 288 RS1/10S102J
R 289 RS1/10S562J
R 290 RS1/10S684J
R 291 RS1/10S222J
R 292 RS1/10S222J
R 301 RS1/10S104J
R 302 RS1/10S104J
R 303 RS1/10S104J
R 304 RS1/8S222J
R 305 RS1/8S222J
R 306 RS1/8S472J
R 307 RS1/8S472J
R 308 RS1/10S473J
R 322 RS1/10S223J
R 325 RS1/10S101J
R 331 RS1/10S223J
R 332 RS1/10S102J
R 333 RS1/10S331J
R 334 RS1/10S103J
R 335 RS1/10S471J
R 336 RS1/10S102J
R 343 RS1/10S472J
R 366 RS1/8S221J
R 370 RS1/10S104J
R 371 RS1/10S473J
R 501 RS1/8S222J
R 502 RS1/10S103J
R 503 RS1/10S103J
R 504 RS1/10S123J
R 505 RS1/10S103J
R 506 RS1/10S103J
R 521 RS1/4S2R2J
R 522 RS1/4S2R2J
R 523 RS1/4S2R2J
R 524 RS1/4S2R2J
R 527 RS1/10S103J
R 528 RS1/4S221J
R 531 RS1/10S2R2J
R 532 RS1/10S2R2J
R 533 RS1/10S471J
R 534 RS1/10S471J
R 535 RS1/10S822J
R 536 RS1/10S822J
R 537 RS1/10S103J
R 538 RS1/10S102J
R 539 RS1/10S102J
R 551 RS1/10S2R2J
R 552 RS1/10S471J
R 553 RS1/10S822J
R 554 RS1/10S103J
R 555 RS1/10S102J
R 571 RS1/10S2R2J
R 572 RS1/10S2R2J
R 573 RS1/10S2R2J
R 574 RS1/10S471J
R 575 RS1/10S471J
R 576 RS1/10S471J
=====Circuit Symbol and No.===Part Name Part No.
--- ------ ------------------------------------------ -------------------------
=====Circuit Symbol and No.===Part Name Part No.
--- ------ ------------------------------------------ -------------------------
38
KEX-M8406ZT,M8406ZT-91,M9406ZT,M9406ZT-91
R 577 RS1/10S822J
R 578 RS1/10S822J
R 579 RS1/10S822J
R 580 RS1/10S103J
R 581 RS1/10S102J
R 582 RS1/10S102J
R 583 RS1/10S102J
R 591 RS1/8S222J
R 592 RS1/8S472J
R 601 RS1/10S104J
R 602 RS1/10S102J
R 604 RS1/10S102J
R 607 RS1/10S102J
R 608 RS1/10S102J
R 609 RS1/10S102J
R 610 RS1/10S681J
R 611 RS1/10S102J
R 612 RS1/10S102J
R 613 RS1/10S473J
R 614 RS1/10S473J
R 615 RS1/10S103J
R 616 RS1/10S103J
R 617 RS1/10S472J
R 618 RA3C103J
R 620 RS1/10S0R0J
R 621 1kΩ CCN1120
R 622 RS1/10S473J
R 623 RS1/10S473J
R 624 RS1/10S473J
R 625 RS1/10S104J
R 626 RS1/10S223J
R 627 1kΩ CCN1120
R 628 47kΩ CCN1131
R 629 RS1/10S102J
R 630 RA3C102J
R 631 RS1/10S681J
R 632 RS1/10S102J
R 633 RS1/10S102J
R 634 RS1/10S473J
R 635 RS1/10S103J
R 641 RS1/10S473J
R 644 RS1/10S102J
R 645 RS1/10S103J
R 651 RS1/10S102J
R 652 RS1/10S102J
R 653 RS1/10S102J
R 654 1kΩ CCN1120
R 655 RS1/10S102J
R 656 RA3C102J
R 657 RS1/10S102J
R 658 RS1/10S102J
R 659 47kΩ CCN1131
R 660 RS1/10S473J
R 661 RS1/10S473J
R 662 RS1/10S473J
R 663 RS1/10S473J
R 664 RS1/10S473J
R 665 RS1/10S473J
R 666 RS1/10S102J
R 667 RS1/10S102J
R 681 RS1/4S101J
R 682 RS1/4S101J
R 683 RS1PMF680J
R 693 RS1/10S473J
R 697 RS1/10S473J
R 698 RS1/10S0R0J
R 701 RS1/10S392J
R 702 RS1/10S392J
R 703 RS1/10S224J
R 704 RS1/10S224J
R 705 RS1/10S224J
R 706 RS1/10S222J
R 707 RS1/10S222J
R 708 RS1/10S822J
R 709 RS1/10S102J
R 710 RS1/10S102J
R 711 RS1/10S222J
R 712 RS1/10S222J
R 713 RS1/10S102J
R 715 RS1/10S272J
R 716 RS1/10S272J
R 717 RS1/10S222J
R 718 RS1/10S222J
R 719 RS1/10S103J
R 720 RS1/10S103J
R 721 RS1/10S393J
R 722 RS1/10S393J
R 723 RS1/10S823J
R 724 RS1/10S823J
R 725 RS1/10S102J
R 726 RS1/10S102J
R 727 RS1/10S473J
R 728 RS1/10S473J
R 729 RS1/10S222J
R 730 RS1/10S222J
R 731 RS1/10S682J
R 732 RS1/10S682J
R 735 RS1/10S222J
R 736 RS1/10S222J
R 737 RS1/10S222J
R 738 RS1/10S222J
R 739 RS1/10S470J
R 740 RS1/10S470J
R 741 RS1/10S470J
R 742 RS1/10S470J
R 743 RS1/10S102J
R 744 RS1/10S102J
R 745 RS1/10S473J
R 746 RS1/10S473J
R 747 RS1/10S473J
R 748 RS1/10S473J
R 771 RS1/10S103J
R 781 RS1/10S223J
R 784 RS1/10S470J
R 785 RS1/10S470J
R 786 RS1/10S470J
R 787 RS1/10S470J
R 788 RS1/10S272J
R 789 RS1/10S272J
R 790 RS1/10S822J
R 791 RS1/10S822J
CAPACITORS
C 201 CKSQYB222K50
C 202 CKSQYB103K50
C 203 CCSQCH471J50
C 204 CKSQYB222K50
C 205 CKSQYB222K50
C 206 CKSQYB222K50
C 207 CKSQYB222K50
C 208 CKSQYB103K50
C 209 CKSQYB222K50
C 210 CEJA100M16
=====Circuit Symbol and No.===Part Name Part No.
--- ------ ------------------------------------------ -------------------------
=====Circuit Symbol and No.===Part Name Part No.
--- ------ ------------------------------------------ -------------------------
39
KEX-M8406ZT,M8406ZT-91,M9406ZT,M9406ZT-91
C 211 CKSQYB103K50
C 212 CKSQYB472K50
C 213 CKSQYB392K50
C 214 CKSQYB103K50
C 215 CKSQYB103K50
C 216 CEJA100M16
C 217 CKSQYB473K50
C 218 CEJA2R2M50
C 219 CKSQYB102K50
C 220 CKSQYB103K50
C 221 CKSQYB473K50
C 223 CKSQYB103K50
C 224 4.7µF/10V CCH1280
C 225 CKSQYB154K16
C 226 CKSQYB103K50
C 227 CSZSR220M10
C 228 CKSQYB103K50
C 229 CKSQYB103K50
C 230 CSZSR220M10
C 231 CEJA101M10
C 232 CKSQYB473K50
C 233 CKSQYB223K50
C 234 CKSQYB223K50
C 235 CCSQCH101J50
C 236 CKSQYB103K50
C 237 CKSQYB103K50
C 239 CKSYB473K50
C 240 CKSQYB102K50
C 241 CCSQCH150J50
C 242 CCSQCH150J50
C 243 CKSQYB103K50
C 244 4.7µF/10V CCH1280
C 245 CKSQYB103K50
C 247 CKSQYB473K50
C 248 CKSQYB473K50
C 249 CKSQYB473K50
C 250 CKSQYB473K50
C 251 CKSQYB334K16
C 252 CKSQYB102K50
C 253 CKSQYB392K50
C 254 CKSQYB682K50
C 255 CKSQYB473K50
C 256 CEJA3R3M50
C 257 CKSQYB333K50
C 258 CEJANP1R0M50
C 259 CQMA683J50
C 260 CQMA333J50
C 261 CQMA333J50
C 262 CQMA333J50
C 263 CKSQYB393K50
C 264 CKSQYB682K50
C 265 CKSQYB473K50
C 266 CKSQYB473K50
C 267 CEAL4R7M35
C 268 CKSQYB104K50
C 270 CCSQCH220J50
C 271 CCSQCH220J50
C 272 CKSQYB223K50
C 273 CKSQYB104K50
C 275 CKSQYB104K50
C 276 CKSQYB105K16
C 277 CKSQYB104K50
C 278 CKSQYB472K50
C 279 CKSQYB103K50
C 280 CKSQYB103K50
C 282 CKSQYB334K16
C 283 CKSQYB473K50
C 284 CKSQYB473K50
C 290 CKSQYB473K50
C 294 CKSQYB222K50
C 301 2200µF/16V CCH1186
C 302 CKSQYB473K50
C 303 CEAL1R0M50
C 304 CEAL1R0M50
C 305 CKSQYB102K50
C 306 CKSQYB102K50
C 323 CKSQYB473K50
C 324 CEAL1R0M50
C 325 CKSQYB103K50
C 326 CEJA330M10
C 331 CKSQYB103K50
C 332 CEJA101M16
C 333 CKSQYB103K50
C 334 CKSQYB473K50
C 335 CKSQYB473K50
C 354 CKSQYB102K50
C 356 1000µF/16V CCH1149
C 501 CKSQYB102K50
C 502 CEAL1R0M50
C 503 CEAL1R0M50
C 521 CKSQYB472K50
C 522 CEJA101M16
C 523 CKSQYB103K50
C 524 CKSQYB102K50
C 525 CKSQYB102K50
C 551 CKSQYB102K50
C 571 CKSQYB102K50
C 572 CKSQYB102K50
C 573 CKSQYB102K50
C 591 CKSQYB102K50
C 603 CKSQYB103K50
C 604 CKSQYB103K50
C 605 CKSQYB102K50
C 606 CKSQYB473K50
C 607 CKSQYB473K50
C 608 CKSQYB102K50
C 612 CEAL4R7M35
C 614 CKSQYB105K16
C 651 CKSQYB103K50
C 652 CKSQYB103K50
C 653 CKSQYB103K50
C 654 CKSQYB102K50
C 655 CKSQYB102K50
C 656 CKSQYB102K50
C 657 CKSQYB102K50
C 658 CKSQYB103K50
C 659 CKSQYB103K50
C 660 CKSQYB103K50
C 661 CKSQYB102K50
C 662 CKSQYB102K50
C 663 CKSQYB102K50
C 664 CKSQYB102K50
C 665 CKSQYB102K50
C 668 CEJA101M6R3
C 669 CKSQYB473K50
C 681 CKSQYB103K50
C 682 CCSQCH221J50
C 683 CCSQCH221J50
C 684 CKSQYB102K50
C 701 CKSQYB105K16
=====Circuit Symbol and No.===Part Name Part No.
--- ------ ------------------------------------------ -------------------------
=====Circuit Symbol and No.===Part Name Part No.
--- ------ ------------------------------------------ -------------------------
40
KEX-M8406ZT,M8406ZT-91,M9406ZT,M9406ZT-91
C 703 2.2µF/50V CCH1375
C 704 2.2µF/50V CCH1375
C 705 CKSQYB223K50
C 706 CKSQYB223K50
C 707 CKSQYB223K50
C 709 CKSQYB153K50
C 710 CKSQYB153K50
C 711 2.2µF/50V CCH1375
C 712 2.2µF/50V CCH1375
C 713 4.7µF/35V CCH1016
C 714 4.7µF/35V CCH1016
C 715 CCSQCH120J50
C 716 CCSQCH120J50
C 717 4.7µF/35V CCH1016
C 718 4.7µF/35V CCH1016
C 719 4.7µF/35V CCH1016
C 720 4.7µF/35V CCH1016
C 721 CCSQCH151J50
C 722 CCSQCH151J50
C 723 CCSQCH331J50
C 724 CCSQCH331J50
C 725 CKSQYB682K50
C 726 CKSQYB682K50
C 727 CKSQYB682K50
C 728 CKSQYB682K50
C 771 CEJA101M6R3
C 772 CKSQYB103K50
C 773 CEJA101M10
C 774 CKSQYB103K50
C 775 CKSQYB103K50
C 776 CKSQYB103K50
C 777 CEJA101M16
C 778 CKSQYB103K50
C 781 CKSQYB104K50
C 782 CEALNP4R7M16
C 783 CEALNP4R7M16
C 784 CEALNP4R7M16
C 785 CEALNP4R7M16
C 786 CCSQCH101J50
C 787 CCSQCH101J50
C 788 CCSQCH101J50
C 789 CCSQCH101J50
C 790 4.7µF/50V CCH1320
C 791 4.7µF/50V CCH1320
Unit Number : CWM7104
Unit Name : LCD Unit
MISCELLANEOUS
IC 951 IC LC75874W
IL 951 Lamp 8V100mA CEL1530
IL 952 Lamp 8V100mA CEL1530
LCD 901 LCD CAW1594
RESISTORS
R 951 1kΩ CCN1120
R 952 22kΩ CCN1129
R 953 RS1/10S433J
R 954 RS1/10S472J
R 955 RS1/10S472J
R 956 RS1/10S472J
CAPACITORS
C 951 CKSQYB104K50
C 952 CCSQCH681J50
C 953 CKSQYB104K50
C 954 CKSQYB104K50
Unit Number : CWM7101
Unit Name : Keyboard Unit
MISCELLANEOUS
S 901 Encoder CSD1055
S 902 Encoder CSD1057
IL 901 Lamp 8V 60mA CEL1531
IL 902 Lamp 8V 60mA CEL1531
IL 903 Lamp 8V 60mA CEL1531
IL 904 Lamp 8V 60mA CEL1531
IL 905 Lamp 8V 60mA CEL1531
IL 907 Lamp 8V 60mA CEL1531
IL 909 Lamp 8V 60mA CEL1531
IL 910 Lamp 8V 60mA CEL1531
IL 912 Lamp 8V 60mA CEL1531
IL 913 Lamp 8V 60mA CEL1531
IL 914 Lamp 8V 60mA CEL1531
IL 915 Lamp 8V 60mA CEL1531
RESISTORS
R 901 RS1/10S3R3J
R 902 RS1/10S3R3J
R 903 RS1/10S3R3J
R 904 RS1/10S3R3J
R 905 RS1/10S3R3J
R 906 RS1/10S3R3J
R 907 RS1/10S1R5J
R 908 RS1/10S2R2J
R 909 RS1/10S1R5J
R 910 RS1/10S2R2J
R 911 0Ω CCN1110
R 913 0Ω CCN1110
R 915 RS1/10S0R0J
R 917 RS1/10S0R0J
R 919 RS1/10S0R0J
R 922 RS1/10S0R0J
Unit Number : EWM1027
Unit Name : Deck Unit
MISCELLANEOUS
IC 251 IC HA12216F
IC 351 IC PA2020A
Q 271 Transistor 2SC4116
Q 351 Transistor 2SB1260
Q 352 Transistor 2SC4102
D 351 Diode 1SS355
VR 301 Semi-fixed 33kΩ(B) CCP1280
VR 302 Semi-fixed 33kΩ(B) CCP1280
RESISTORS
R 255 RS1/16S181J
R 256 RS1/16S181J
R 257 RS1/16S183J
R 258 RS1/16S183J
R 259 RS1/16S133J
R 260 RS1/16S133J
R 261 RS1/16S274J
R 262 RS1/16S274J
R 271 RS1/16S183J
R 272 RS1/8S0R0J
R 273 RS1/8S0R0J
R 274 RS1/8S0R0J
R 275 RS1/16S473J
R 276 RS1/16S104J
R 277 RS1/16S224J
=====Circuit Symbol and No.===Part Name Part No.
--- ------ ------------------------------------------ -------------------------
=====Circuit Symbol and No.===Part Name Part No.
--- ------ ------------------------------------------ -------------------------
G
F
C
41
KEX-M8406ZT,M8406ZT-91,M9406ZT,M9406ZT-91
R 278 RS1/16S104J
R 281 RS1/8S0R0J
R 282 RS1/8S0R0J
R 283 RS1/8S0R0J
R 284 RS1/8S0R0J
R 285 RS1/16S0R0J
R 288 RS1/16S0R0J
R 289 RS1/16S0R0J
R 291 RS1/8S0R0J
R 292 RS1/10S0R0J
R 293 RS1/10S0R0J
R 294 RS1/10S0R0J
R 321 RS1/8S0R0J
R 351 RS1/16S102J
R 352 RS1/16S102J
R 353 RS1/16S102J
R 354 RS1/16S102J
R 355 RS1/10S274J
R 356 RS1/10S202J
R 357 RS1/10S472J
R 358 RS1/10S103J
R 359 RS1/10S103J
R 360 RS1/10S102J
R 361 RS1/10S622J
R 362 RS1/8S181J
R 373 RS1/8S0R0J
R 374 RS1/8S0R0J
R 375 RS1/8S0R0J
R 401 RS1/16S123J
R 402 RS1/16S332J
R 403 RS1/16S911J
R 404 RS1/16S274J
CAPACITORS
C 251 CKSRYB391K50
C 252 CKSRYB391K50
C 253 CKSRYB391K50
C 254 CKSRYB391K50
C 255 CKSRYB103K50
C 256 CKSRYB103K50
C 271 CEJA1R0M50
C 272 CKSQYB104K16
C 301 CKSQYB104K16
C 302 CKSQYB104K16
C 309 CKSQYB104K16
C 310 CKSQYB104K16
C 351 CKSYB224K25
C 352 CKSQYB392K50
C 353 CKSQYB103K50
C 354 CKSQYB103K50
C 355 CKSYB104K50
C 356 CKSQYB103K50
C 401 CKSRYB472K50
C 402 CKSYB334K25
C 403 CKSRYB223K25
C 404 CKSRYB103K50
C 405 CKSRYB333K16
Unit Number :
Unit Name : PCB Unit
L 1 Inductor ETH0002
S 1 Switch (LOAD) ESG1004
S 2 Switch (70µs) ESG1004
EGN 1 Photo-Interrupter EGN1005
Unit Number :
Unit Name : Reel PCB
EGN 2 Photo-Interrupter EGN1006
EGN 3 Photo-Interrupter EGN1006
Miscellaneous Parts List
C 1 CEAL4R7M35
M 1 Motor Unit (Main) EXA1499
M 2 Motor Unit (Sub) EXA1382
HD 1 Head Assy EXA1594
=====Circuit Symbol and No.===Part Name Part No.
--- ------ ------------------------------------------ -------------------------
=====Circuit Symbol and No.===Part Name Part No.
--- ------ ------------------------------------------ -------------------------
D
E
42
KEX-M8406ZT,M8406ZT-91,M9406ZT,M9406ZT-91
6.1 TUNER/AUDIO ADJUSTMENT
- Connection Diagram
6. ADJUSTMENT
H/U
KEX-M8406ZT/UC
KEX-M9406ZT/UC
DSP AMP
GM-8506ZT/E
GM-8606ZT/E
20P 12P
12P10P 8P6P
20P 12P
10P 8P6P
10P
10P
CD Changer
CDX-M8076ZT/E
CDX-M8106ZT/E
GGD1167
GGD1144
20P
12P
12P
12P
GGD1148
12P
14P 8P
GGD1236
43
KEX-M8406ZT,M8406ZT-91,M9406ZT,M9406ZT-91
Main
Antenna Jack
FM SSG
Stereo
Modulator
50Ω(37.5Ω)
Antenna Plug
Dummy Antenna
50Ω(75Ω)
IC601
MAIN UNIT
mV Meter (1)
Oscilloscope (1)
4Ω
Lch +
Lch -
Rch +
Rch -
GM-8506ZT/E
DC Regulated
Power Supply
BACK UP
ACC
GND
+13.2V
GND
FM/AM TUNER UNIT
DECK UNIT
4Ω
VR202
VR201
R287
DC V
Meter(3)
VR302
mV
Meter(2)
VR301
L-CH
R-CH
Pin2
Pin3
CN251
DECK UNIT
Extention Cord GGD1121
DC V
Meter(1)
Pin 1
Pin 14
Pin 13
Pin26
FM/AM TUNER UNIT (SIDE A)
DC V
Meter(2)
L5
L52
VR151
VR101
VR154
VR156
T31
L6
Pin 6(FMSD)
Pin 19(FMTV)
Pin 27
Pin 28
Center
Meter
C63
L52
FM/AM TUNER UNIT(SIDE B)
TC3
TC2
TC1
44
KEX-M8406ZT,M8406ZT-91,M9406ZT,M9406ZT-91
FM ADJUSTMENT
Modulation M:MONO MOD., 400Hz 30%(22.5kHz Dev.) or 400Hz 100%(75kHz Dev.)
S1:STEREO MOD., 1kHz, L or R=30%(20.25kHz+7.5kHz Dev.)
S2:STEREO MOD., 1kHz, L or R=60%(40.5kHz+7.5kHz Dev.)
NOTE:Before proceeding to further adjustments after switching power ON, let the tuner run for ten minutes to allow
the circuits to stabilize.
FM SSG Displayed Adjustment Adjustment Method
No. Frequency(MHz)
Level(dBf) Frequency(MHz) Point (Switch Position)
TUN Volt 1 ••••• ••••• 107.9 L5 DC V Meter(1) : 6V
Center 1 98.1 M 65-85 98.1 L52 Center Meter : 0
Meter
IFT 1 98.1 M 5-15 98.1 T31 mV Meter(1) : Maximum
ANT 1 98.1 M 5-15 98.1 TC1,TC2 mV Meter(1) : Maximum
Trimmer
RF Coil 1 89.9 M 5-15 89.9 L6 mV Meter(1) : Maximum
RF 1 106.1 M 5-15 106.1 TC3 mV Meter(1) : Maximum
Trimmer
Separation 1 98.1 S1 65 98.1 VR101 mV Meter(1) : Maximum
ARC 1 98.1 S1 38 98.1 VR154 mV Meter(1) : Separation 5dB
Separation
Interstation 1 98.1 M 65 98.1 --- mV Meter(1) : AdB
Noise 2 98.1 M -∞ 98.1 VR151 mV Meter(1) : A-20dB
Search 1 98.1 M 33 98.1 VR156 DC V Meter(2) : more than 3.5V
Sensitivity 2 98.1 M 32 98.1 VR156 DC V Meter(2) : 0
3 Repeat steps 1 and 2 until the adjustment standards are satisfied.
DOLBY B NR ADJUSTMENT
No. Test Tape Adjustment Point Adjustment Method
(Switch Position)
1 NCT-150 VR301(Lch),VR302(Rch) mV Meter(2) : -8.24dBm(300mV)±1dB
(400Hz,200nwb/m) (DOLBY NR Switch : OFF)
RBDS SL ADJUSTMENT
FM SSG Displayed Adjustment Adjustment Method
No.
Frequency(MHz) Level(dBf)
Frequency(MHz) Point (Switch Position)
1 104.0 S2 35 104.0 VR202 DC V Meter(3) : 1.75V±0.05V
45
KEX-M8406ZT,M8406ZT-91,M9406ZT,M9406ZT-91
Connection:
Setting of the pulse generator (setting of
superimposed pulse)
Adjustment:
1. Setting of SSG
Receiving frequency : 1000 kHz
Percentage modulation : 30%
Modulation frequency : 400 Hz
Antenna input : 74 dBuV (EMF)
2. Set the system as shown in 1., then tune to a
radio station.
3.Superimpose the pulse over signal to set
modulation of SSG to OFF.
4. Use a noise meter to monitor output. Adjust
VR201 to minimize the noise level.
Pulse generator
(equivalent to HP8011A)
SSG
2-signal pad AM dummy
KEX-M8406ZT
KEX-M9406ZT
Output
Noise meter
Pulse width :50usec
Pulse intervals :5msec
Pulse voltage :4Vp-p
4Vp-p(EMF)
50us
5ms
AM NOISE CANCELER ADJUSTMENT
KEX-M8406ZT/UC
KEX-M9406ZT/UC
46
KEX-M8406ZT,M8406ZT-91,M9406ZT,M9406ZT-91
Normal
mode
System Check mode
The system runs a self-diagnosis and displays the
results (diagnostic codes).
•Max. 6 Diagnostic codes for each physical address (for
each connected device)
•Displays the current status (past errors not displayed)
Diagnosis Memory mode
The system displays historical operational errors
recorded for each physical address (for each device)
during normal operation in the past.
•Max. 6 Diagnostic codes for each physical address (for
each connected device)
LAN CHECK mode
The system displays the physical address of each
device connected to AVC-LAN.
•The device's own physical address is included.
Diagnosis Memory Clear
The system clears Diagnosis
Memory (the codes).
•After completing clearing, the
system goes to LAN CHECK mode.
6Memory Clear
Complete clearing
(automatic)
2End Diagnosis
3Go to System Check
4Return to LAN CHECK
5Go to Diagnosis Memory
4Return to LAN CHECK
2End Diagnosis
1Go to Diagnosis
2End Diagnosis
- Flowchart and Functions
- Operation Specifications
KEX-M8406ZT/UC ,M9406ZT/UC
1Go to Diagnosis Press the DISC key three times,
while holding down CH1 or CH6.
2End Diagnosis DISC key (Press and hold for 1.7 seconds.)
ACC OFF/ON
3Go to System Check CH1
4Return to LAN CHECK CH6
5Go to Diagnosis Memory CH2
6Memory Clear CH5 (Press and hold for 1.7 seconds.)
•Page up SEEK
•Page down SEEK
7.1 DIAGNOSIS
7.1.1 DIAGNOSIS MODE
7. GENERAL INFORMATION
47
KEX-M8406ZT,M8406ZT-91,M9406ZT,M9406ZT-91
1 0123456789ABCDEF
1
3
2
Display
1 — 123
Serial No. Physical address
Example:2—190
The second device
connected is
an “audio H/U.”
1Device groups
1 : Controllers
2 : Video output devices
3 : Audio output devices
4 : Audio processing devices
5 : Information output devices
6 : Vehicle devices
- Physical Address Assignment
M.DISP
computer
AV
machine
1DIN
-TV
EMV
CD-ROM
navigation
Audio
ECU
Audio
H/U
Rear seatTVDisplay
with SW
Rear
control
SW
CD-CH
commander
MD-CH
commander
0
8
1-8
A-F
1 0123456789ABCDEF
2
Navigation
computer
ATIS
FM
multiple
TV tuner
CD-CH
with
video
0
1-F
1 0123456789ABCDEF
3
Radio
Cassette
Radio/cas-
sette
without CH
controller
CD-P
CD-CH
MD-P
MD-CH
DAT
DCC
TEL
ECU
0
8
1-7
9-F
1 0123456789ABCDEF
4
Equalizer
DSP
H. W
AMP
0
1-F
1 0123456789ABCDEF
5
GPS
receiver
ATIS
decoder
FM
multiplex
decoder
CD-CH
MD-CH
CD-ROM
-CH
MD-ROM
-CH
0
1-F
1 0123456789ABCDEF
6
A/C
computer
Body
computer
0
1-F
=
48
KEX-M8406ZT,M8406ZT-91,M9406ZT,M9406ZT-91
1
2
- Assignment of Diagnostic Codes
Display
1 — 12
Serial No. Diagnostic code
Example: 3—D2
The third content of Diagnosis is
"No response to periodical
communications."
NOTES:
*1 Instruction to check for an error
in periodical communications is
interrupted.
- Items corresponding each model
<During Diagnosis Memory mode>
• KEX-M8406ZT/UC,M9406ZT/UC
D1, D2, FF, 50
<During System Check mode>
• KEX-M8406ZT/UC,M9406ZT/UC
No Diagnostic code assigned 00
Common Diagnostic code
among devices
Diagnostic code specific to a particular device Diagnostic code for
communications
NO
ERR
+B error
ACC
error
MUTE
error
Micropro-
cessor
error
ROM
error
RAM
error
AM tuner
error
FM tuner
error
TV tuner
error
Cassette
deck
error
Cassette
deck EJT
failure
Tape entan-
gled in the
cassette
deck
Dirt in
cassette
deck
head
Broken
cassette
deck belt
CD deck
or CD-CH
error
CD, CH
EJT
failure
Dirt, scar
and upside-
down in
CD, CH
Detected
P.U tem-
perature
in CD, CH
Detected
overcur-
rent in
CD, CH
CH
tray errorCHelevator
error
CD, CH
clamp
error
MD deck
or MD-CH
error
MD, CHrMD, CHrMD, CHrMD, CHrMD, CH
recording
function
error
CHrMD, CH
r
Amplifier
error
DSP
error
EQ error
LCD
error
Switch
error
Antenna
error
Main
antenna
error
Sub
antenna
errorTVantenna
error
Antenna
selector
error
AUDIO
ECU
error
No response
to commu-
nications
Commu-
nications
failure
No response
to periodical
communica-
tions
*1
No response
to Diagnosis
0123456789ABCDEF
0
1
2
3
4
5
6
7
8
9
A
B
C
D/E
F
=
49
KEX-M8406ZT,M8406ZT-91,M9406ZT,M9406ZT-91
LAN-CHECK mode System Check mode Diagnosis Memory mode
Beep
Display
• The system displays the physical address of each
device connected to AVC-LAN in sequence from
the lowest address.
Example: 1 — 1E0
Serial No. Physical address
(CD commander)
• When changing to another mode
Blinking "SYS" is displayed.
• After completing System Check
Displays a physical address.
••Identifies the device.
Example: H 150
Physical address (1DIN-TV)
Distinguishes from LAN-CHECK.
Displays a Diagnostic code.
••Identifies the type of error.
Example: 1 — d2
Serial No. Diagnostic code
(no response to periodical
communications)
Max. 6 for each physical address
Displays an auxiliary code
••Identifies the device involved in the error.
Example: 1 — 360
Serial No. Physical address (CD-CH)
1DIN-TV has recorded an error indicating there
is no response to periodical communications
in CD-CH.
1 — ———
When there is no physical address:
Displays a physical address.
The next lowest physical address
• When there is no Diagnostic code after completion
of System Check
00
The system changes as shown above, as this unit
does not include System Check.
• The system beeps three times
when changing to another mode.
• The system beeps once every time
a physical address is displayed.
• When changing to another mode
Blinking "CODE" is displayed.
• Then, "Latest periodical communications
number" is displayed.
••Elapsed time at the current point is displayed.
Example:
1F
Elapsed time (31 minutes)
• The system displays a number from 00 to
FF (increases a digit every minute).
• When 256 minutes are reached, the system
returns to 00.
• Displays the details of Diagnosis.
Displays a physical address.
(Same as the left.)
Displays a periodical communications
number.
••Displays the time when the error occurred.
Example: 1 — 02
Serial No. Elapsed time (2 minutes)
Displays Diagnostic code. (Same as the left.)
Displays an auxiliary code. (Same as the left.)
Displays a physical address.
• When there is no Diagnostic data:
00
• The system beeps three times
when changing to another mode.
• The system beeps once every time
a physical address is displayed.
• The system beeps three times
when starting up Diagnosis.
- Go to Diagnosis (Beep and Display)
50
KEX-M8406ZT,M8406ZT-91,M9406ZT,M9406ZT-91
- Removing the Main Unit (Fig.2)
Remove the two screws.
Straight the tabs at two locations indicated.
Remove the two screws and then remove
the Main Unit.
-
Removing the Case (not shown)
1. Remove the six screws.
2. Remove the case.
- Removing the Grille Assy (Fig.1)
Remove the two screws and then remove
the Grille Assy.
- Removing the Holder (Fig.1)
Remove the four screws and then remove
the Holder.
- Removing the Cassette Mechanism Module
(not shown)
1. Remove the four screws.
2. Remove the Cassette Mechanism Module.
Fig.2
Holder
Fig.1
7.1.2 DISASSEMBLY
Main Unit
Grille Assy
51
KEX-M8406ZT,M8406ZT-91,M9406ZT,M9406ZT-91
7.1.3 CONNECTOR FUNCTION DESCRIPTION
+B R+
MUTE
R-
GND
SGND
ACC
L+
L-
TX+
ACC
MUTE
L+
L-
TX2-TX2+
R+
R-
TX-
+B
ILL-
ILL+
GND
SLD
MAIN ANTENNA
SUB ANTENNA
52
KEX-M8406ZT,M8406ZT-91,M9406ZT,M9406ZT-91
Is B-UP ON?
BSENS terminal
Pin 75(IC601)
NO
Check +B
(Check a power supply.)
YES
Is ACC ON?
ASENS terminal
NO
Turn on ACC
(Check a power supply.)
Pin 73(IC601)
YES
Does illumination
come on?
NO
Check illumination circuit?
ILSENS terminal Pin 23(IC601)
DSSILL terminal Pin 51(IC601)
YES
Is PWR-ON enabled?
NO
Check PWRSW terminal
POWER Pin 55(IC601)
YES
Is voice output?
NO
Is amplifier connected
correctly?
YES
Is any sound of FM, AM and
TAPE (internal sources) output?
NO
Connect amp correctly
YES
Is VOL adjustment
enabled?
NO
Check encoder input.
ENC1+ Pin 53(IC601)
ENC1- Pin 54(IC601)
YES
Normal operation
NO
Check the following terminals
SYSPW Pin 52(IC601)
ANSW Pin 100(IC601)
SYSMUTE Pin 50(IC601)
MUTE Pin 49(IC601)
YES
Are FM and AM
sounds output?
NO
Check the following terminals
FMPW Pin 43(IC601)
AMPW Pin 44(IC601)
FMMUTE Pin 38(IC601)
AMMUTE Pin 37(IC601)
YES
Is TAPE sound output?
NO
Recheck hardware
YES
IsTAPE mechanical unit
operated normally?
NO
Check the following terminals
STBY Pin 85(IC601)
CM Pin 84(IC601)
SC1 Pin 83(IC601)
SC2 Pin 82(IC601)
YES
Check the following terminals
SYSPW Pin 52(IC601)
TAPEMUTE Pin 88(IC601)
7.1.4 TROUBLESHOOTING
53
KEX-M8406ZT,M8406ZT-91,M9406ZT,M9406ZT-91
- Pin Functions (PD5579A)
Pin No. Pin Name I/O Function and Operation
1 MUTESENS Not used
2 linh O Inhibit output for LCD driver
3 LCE O Chip enable output pin for LCD driver
4 ILL Not used
5 LDO O LCD driver data output
6 NC Not used
7 LCK O Clock output for LCD driver
8 BYTE Connect to GND
9 CNVSS Connect to GND
10 XCIN Not used
11 XCOUT Not used
12 reset I Reset input
13 XOUT O X'tal terminal
14 VSS GND
15 XIN I X'tal terminal
16 VDD Power supply
17 nmi Connect to VDD
18 rck I RDS clock input
19 ldet I PLL lock sense input
20 NC Not used
21 RX2 I BUS data input
22 IPPW O BUS driver power supply output
23 ilsens I Illumination sense input
24 drst O Reset output
25 57K I 57kHzBP-OUT sense input
26 currq O Current request
27 sk I SK signal input
28 rdslk I RDS LK signal input
29 RX1 I BUS data input
30 TX O BUS data output
31 PDO O Data output for PLL IC
32 PDI I Data input from PLL IC
33 PCK O PLL clock output
34 PCE O Chip enable output for PLL IC
35 ECE Not used
36 RDSMUTE O RDS mute
37 AMMUTE O AM mute output
38 FMMUTE O FM mute output
39 blpw O Back Light ON/OFF
40 MODSENS I Modulation sense
41 EPM Not used
42 RDT I RDS demodulation data input
43 FMPW O FM power output
44 AMPW O AM power output
45 swvdd O Grille power supply control output
46 CE Not used
47 ANTB O Antenna control B
48 ANTA O Antenna control A
49 MUTE O BUS mute output
50 sysmut O System mute
51 dssill O DSS illumination output
52 syspw O System power control output
53 ENC1+ I VOL encoder (+) input
54 ENC1- I VOL encoder (-) input
55 power I POWER key input
56-61 KST5-0 O Key strobe output
7.2.1 IC
7.2 PARTS
54
KEX-M8406ZT,M8406ZT-91,M9406ZT,M9406ZT-91
Pin No. Pin Name I/O Function and Operation
62 VCC Power supply
63 NC Not used
64 VSS Connect to GND
65-68 KD3-0 I Key data input
69 MS I Cassette mechanism MS sense input
70 fR O Head forward/reverse select output
71 PLAY O MS gain select output
72 mtl I Cassette mechanism tape detect input
73 asens I ACC power sense input
74 csej I Cassette eject sense input
75 bsens I Back up power sense input
76 NR O Dolby NR ON/OFF select output
77 csload I Tape loading detect input
78 POS I Position sense
79 RES I Cassette mechanism reverse end sense input
80 NES I Cassette mechanism forward end sense input
81 TEST I Test terminal
82 SC2 O Cassette mechanism sub motor control output
83 SC1 O Cassette mechanism sub motor control output
84 CM O Cassette mechanism capstan motor control output
85 stby I Stand-by input terminal
86 ENC2- I AUD encoder (-) input
87 ENC2+ I AUD encoder (+) input
88 TAPEMUTE O TAPE mute output
89 ST I Stereo
90 FMSD I FM SD input
91 NL RDS noise level
92 CL I RDS tune off sense input
93 RDSL RDS signal level
94 ILL- Not used
95 SL I Signal level input
96 AVSS Connect to GND
97 NC Not used
98 VREF Connect to VDD
99 AVCC Connect to VDD
100 ANSW O Analog SW
*PD5579A
LC75874W
IC's marked by* are MOS type.
Be careful in handling them because they are very
liable to be damaged by electrostatic induction.
30
1
31
50
51
80
100
81
20
21
40
41
1
80
61
60
55
KEX-M8406ZT,M8406ZT-91,M9406ZT,M9406ZT-91
- Pin Functions (LC75874W)
Pin No. Pin Name I/O Function and Operation
1–64 SE3-66 O LCD segment signal output
65–68 CO1-CO4 O LCD common signal output
69 VDD Power supply
70 VLCD LCD Power supply
71 VLCD1 LCD bias power supply
72 VLCD2 LCD bias power supply
73 VSS GND
74 OSC I/O
75 linh I Inhibit input from IC901
76 CE I Chip enable output pin for LCD driver
77 CL I Clock output for LCD driver
78 DI I Data output for LCD driver
79,80 SE1,SE2 O LCD segment signal
HA12216F
31
32
33
34
35
36
37
38
39
40
12 34567
8910
11
12
13
14
15
16
17
18
19
20
212223
24
25
26
27
28
29
30
MSGV(R)
MAOUT
MSI
MSDET
VCC
MSOUT
MSGV
F/R
120/70
NR
MOUT(L)
EQOUT(L)
TAI(L)
NC
RAI(L)
PBOUT(L)
NC
DET(L)
NC
MSGV(S)
NFI(L)
RIN(L)
RIP
FIN(L)
GND
GND
FIN(R)
VREF
RIN(R)
NFI(R)
M-OUT(R)
EQOUT(R)
TAI(R)
BIAS
RAI(R)
PBOUT(R)
NC
DET(L)
NC
MUTE
Dolby B-N
LPF
DET
S/R
T/R
Dolby B-N
T/R
F/R
F/R
56
KEX-M8406ZT,M8406ZT-91,M9406ZT,M9406ZT-91
656
SEG
3
2
1COM
COM
COM
4COM 43COM
COM
6
6
6
6
6
5
4
2
1
5
4
3
2
1
5
4
3
2
1
5
4
3
2
1
5
4
3
2
1
5
4
3
2
1
5
4
3
2
1
5
4
3
2
1
5
4
3
2
1
6
5
4
3
2
1
1
2
4
3
2
1
0
9
8
7
6
5
4
3
2
1
0
9
8
7
6
5
4
3
2
1
0
9
8
7
6
5
3
2
1
0
9
8
7
6
5
4
3
2
1
0
9
8
7
6
5
4
3
2
1
0
9
8
7
6
5
4
3
2
COM
COM
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
SEG
1SEG
COMMON
SEGMENT
7.2.2 DISPLAY
57
KEX-M8406ZT,M8406ZT-91,M9406ZT,M9406ZT-91
7.3 EXPLANATION
7.3.1 SYSTEM BLOCK DIAGRAM
H/U
PWR
AMP
CD
+B, ACC
+B, ACC
+B,ACC
KEX-M8406ZT/UC
GM-8506ZT/E
GM-8606ZT/E
CDX-M8076ZT/E
CDX-M8176ZT/E
VEHICLE
POWER SUPPLY(+B, ACC)
BUS
SIGNAL(SOUND, VISION)
- (7SP)
H/U
PWR
AMP
CD
+B, ACC
+B, ACC
+B,ACC
KEX-M9406ZT/UC
Other Makers
CDX-M8076ZT/E
CDX-M8176ZT/E
VEHICLE
- (8SP)
58
KEX-M8406ZT,M8406ZT-91,M9406ZT,M9406ZT-91
7.3.2 OPERATIONAL FLOW CHART
Completes power-on operation.
(After that, proceed to each source operation.)
SYSPW←L
52pin
YES
Source ON
Source keys
operative
PPW←H
22pin
swvdd←L
45pin
asens
73pin
bsens
75pin
VCC=5V
16pin
VDD=5V
62pin
Power ON
L
L
59
KEX-M8406ZT,M8406ZT-91,M9406ZT,M9406ZT-91
8. OPERATIONS AND SPECIFICATIONS
8.1 OPERATIONS
AM
TRAFFIC
INFORMATION
MANUAL
SEEK
TUNING
VOLUME,
POWER ON/OFF
DIRECTION CHANGE
DOLBY NR
MUSIC
REPEAT
BLANK
SKIP
RADIO TEXT
REWIND
FAST
FORWARD
UP
DOWN
SEEK
- RADIO
TAPE
FM
SCAN
PRESET RECALL
PRESET CH.MEMORY
UP
DOWN
AUTOMATIC
PROGRAM
SEARCH
- TAPE
RDS ON/OFF
PTY IND.
BALANCE
FADER
BASS
TREBLE
MID RANGE
ASL
TAPE EJECT
VOLUME,
POWER ON/OFF
KEX-M8406ZT,M8406ZT-91,M9406ZT,M9406ZT-91
PIONEER CORPORATION 4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, Japan
PIONEER ELECTRONICS SERVICE 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 2000
K-ZZS. JULY 2000 Printed in Japan
CD
RANDOM
PLAY
TRACK
DISC
REPEAT
FAST
DOWN
FAST UP
UPDOWN
DISC SCAN,
TRACK SCAN
DISC NUMBER
SELECT
UP
TRACK
NUMBER
SEARCH
DOWN
- CD
BALANCE
FADER
BASS
TREBLE
MID RANGE
ASL
VOLUME,
POWER ON/OFF
8.2 SPECIFICATIONS
General
Power source...................13.2 V(10.5V—16.0V allowable)
Electrode dark current ..........................less than 1 mA
Grounding system...............................Negative type
Weight .................................................1.64 kg
Tape player
Tape.......................Compact cassette tape (C-30—C-90)
Tape speed ...........4.76 cm/sec.(+0.14 cm/sec.,-0.05 cm/sec.)
Wow & flutter ..........................less than 0.2 %(WRMS)
Fast forward/rewind time ............less than 120 sec. for C-60
Stereo separation .............................more than 30 dB
Signal-to-noise ratio ..........................more than 40 dB
FM tuner
Frequency range.............................87.7 — 107.9 MHz
Usable sensitivity .....................7 dBµ±6dB (S/N: 30 dB)
Signal-to-noise ratio...................more than 48 dB(stereo)
Distortion .......................................less than 1.5%
Stereo separation ...........more than 25 dB (35 ±10dB, 1 kHz)
AM tuner
Frequency range ..............................530 — 1,710 kHz
Usable sensitivity ....................28 dBµ± 5dB (S/N: 20 dB)
Selectivity...........................more than 50 dB (±10 kHz)
Signal-to-noise ratio...................more than 44 dB(74dBµ)
Distortion...............................less than 1.0% (74dBµ)
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