Pioneer DEH-P90DAB User manual

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-ZZA. OCT. 2000 Printed in Japan
ORDER NO.
CRT2556
MULTI-CD/MD/DAB CONTROL DSP HIGH POWER CD PLAYER WITH RDS TUNER
DEH-P90DAB EW,ES
Service
Manual
-This service manual should be used together with the following manual(s):
Model No. Order No. Mech. Module Remarks
CX-961 CRT2503 H2 CD Mech. Module:Circuit Description, Mech.Description, Disassembly
CONTENTS
1. SAFETY INFORMATION ............................................3
2. EXPLODED VIEWS AND PARTS LIST.......................4
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM ...16
4. PCB CONNECTION DIAGRAM ................................40
5. ELECTRICAL PARTS LIST ........................................52
6. ADJUSTMENT..........................................................69
7. GENERAL INFORMATION .......................................74
7.1 DIAGNOSIS ........................................................74
7.1.1 TEST MODE(DAB TUNER MODULE)......74
7.1.2 TEST MODE(CD MECHANISM MODULE)......76
7.1.3 DISASSEMBLY .........................................80
7.1.4 CONNECTOR FUNCTION DESCRIPTION .......86
7.2 IC ........................................................................87
8. OPERATIONS AND SPECIFICATIONS...................105
DEH-P90DAB/EW

2
DEH-P90DAB
-Service Precautions
1. For pickup unit(CXX1305) handling, please refer
to"Disassembly"(see page 80).
During replacement, handling precautions shall be
taken to prevent an electrostatic discharge(protection
by a short pin).
2. During disassembly, be sure to turn the power off
since an internal IC might be destroyed when a con-
nector is plugged or unplugged.
3. Please checking the grating after changing the ser-
vice pickup unit(see page 72).
4. In the correct orientation, characters can be seen
when viewed from the product rear side.(A wind
blows.)
5. Since the RCA, IP and ASL cords are fixed with lock
tie, the lock tie needs to be cut off at the time of dis-
assembly. At the time of assembly, new lock tie is
needed.
6. When operating with large output power, the heat
sink becomes very hot. Be careful not to touch it. In
particular, be careful of the heat sink on the bottom
of a product.

3
DEH-P90DAB
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.
1. Safety Precautions for those who Service this Unit.
• When checking or adjusting the emitting power of the laser diode exercise caution in order to get safe, reliable
results.
Caution:
1. During repair or tests, minimum distance of 13cm from the focus lens must be kept.
2. During repair or tests, do not view laser beam for 10 seconds or longer.
2. A “CLASS 1 LASER PRODUCT” label is affixed to the
bottom of the player.
3. The triangular label is attached to the mechanism
unit frame.
4. Specifications of Laser Diode
Specifications of laser radiation fields to which human access is possible during service.
Wavelength = 800 nanometers
CLASS 1
LASER PRODUCT

4
DEH-P90DAB
2. EXPLODED VIEWS AND PARTS LIST
2.1 PACKING(DEH-P90DAB/EW)
23
6
2
3
4
7
19
20
8
21
5
26
24
18 1
25
9
13 15 15
14
17
16
10
11 12

DEH-P90DAB
5
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.
-Owner's Manual, Installation Manual
Model Part No. Language
DEH-P90DAB/EW CRD3259 English, Spanish
CRD3260 German, French
CRD3261 Italian, Dutch
CRD3262 English, Spanish, German, French, Italian, Dutch
1 Cord Assy CDE6248
2 Accessory Assy CEA2538
3 Screw CBA1002
4 Screw CBA1120
5 Handle CNC5395
6 Bush CNV1917
* 7 Polyethylene Bag E36-615
* 8 Cover CEG1088
9 Remote Control Assy CXB3488
10 Remote Control Assy CZX3231
11 Holder Assy CZX3172
12 Holder Assy CZX3173
13 Belt CZN6416
14 Screw Assy CZE3169
* 15 Screw RMZ30H060FBK
* 16 Hexagonal Wrench CZE3176
* 17 Polyethylene Bag CEG-127
* 18 Battery CEX1030
19 Air Cushioned Bag CEG1192
20 Protector CHP2032
21 Protector CHP2033
22 •••••
23-1 Owner’s Manual CRD3259
23-2 Owner’s Manual CRD3260
23-3 Owner’s Manual CRD3261
23-4 Installation Manual CRD3262
* 23-5 Caution Card CRP1207
23-6 •••••
23-7 Passport CRY1013
* 23-8 Warranty Card CRY1157
23-9 Polyethylene Bag CEG1116
24 Carton CHG4107
25 Contain Box CHL4107
26 Case Assy CXB3520
-PACKING SECTION PARTS LIST
Mark No. Description Part No. Mark No. Description Part No.

6
DEH-P90DAB
2.2 PACKING(DEH-P90DAB/ES)
8
1
22
26
21
27
25
24
28
13
19 7
1112
14
9
16
17
23
20
5
2
3
4

7
DEH-P90DAB
-Owner's Manual, Installation Manual
Model Part No. Language
DEH-P90DAB/ES CRD3263 English, French
CRD3264 English, French
1 Cord Assy CDE6249
2 Base Assy CEA2426
* 3 Base CNS5031
* 4 Sheet CZA3371
5 Polyethylene Bag CZE3188
6 •••••
7 Spring CBH-865
8 Case Assy CXB3520
9 Screw BMZ50P060FMC
10 •••••
11 Screw CBA1002
12 Screw CBA1120
* 13 Polyethylene Bag CEG-127
14 Screw CMZ50P060FMC
15 •••••
* 16 Polyethylene Bag CEG-158
17 Handle CNC5395
18 •••••
19 Bush CNV1917
20-1 Polyethylene Bag CEG1116
20-2 Owner’s Manual CRD3263
20-3 Installation Manual CRD3264
* 20-4 Caution Card CRP1207
21 Polyethylene Bag CEG1185
22 Air Cushioned Bag CEG1192
23 Battery CEX1006
24 Carton CHG4108
25 Contain Box CHL4108
26 Protector CHP2032
27 Protector CHP2033
28 Remote Control Assy CXB3875
-PACKING SECTION PARTS LIST
Mark No. Description Part No. Mark No. Description Part No.

8
DEH-P90DAB
2.3 EXTERIOR
A
B
C
D
F

9
DEH-P90DAB
1 Screw BSZ26P060FMC
2 Screw BSZ26P160FMC
3 Screw BSZ30P050FMC
4 Screw BSZ30P200FMC
5 Screw(M2x2.5) CBA1447
6 Cord Assy See Contrast table(2)
7 Fuse(10A) See Contrast table(2)
8 Cap See Contrast table(2)
9 Cap See Contrast table(2)
10 Cord Assy CDE6250
11 Cord Assy CDE6251
12 Flat Cable CDE6602
13 Antenna Cable CDH1285
14 Holder CNC8659
15 Holder CNC8730
16 Holder CNC8731
17 Holder CNC8914
18 Holder CNC8915
19 Shield CNC9101
20 Shield CNC9104
21 Spacer CNM6482
22 Cover CNM6489
23 Insulator CNM6669
24 Cushion CNM6976
25 Cushion CNM6977
26 Sheet CNM6982
27 Heat Sink CNR1562
28 Heat Sink CNR1563
29 Panel CNS5548
* 30 Lock Tie CNV-754
31 Cap CNV6727
32 Main Unit See Contrast table(2)
33 Screw BMZ26P160FMC
34 Screw BSZ26P060FMC
35 Screw(M2.6x14) CBA1384
36 Cord Assy CDE6265
37 Clamper CEF1004
38 Terminal(CN452) CKF1059
39 Plug(CN901) CKM1278
40 Plug(CN141) CKS-784
41 Plug(CN851) CKS-786
42 Plug(CN101) CKS1044
43 Connector(CN801) CKS1532
44 Connector(CN971) CKS2975
45 Connector(CN351) CKS3592
46 Connector(CN991) CKS4248
47 Antenna Jack(CN451) CKX1010
48 Holder CNC7533
49 Holder CNC8758
50 Holder CNC8916
51 Holder CNC9142
52 Insulator CNM5967
53 Insulator CNM7238
54 Heat Sink CNR1590
55 FM/AM Tuner Unit See Contrast table(2)
56 Holder CNC7532
57 DAB Tuner Module CWE1538
58 Connector(CN2001) CKS2619
59 Connector(CN2901) CKS4286
60 Holder CNC8933
61 Case CNC8934
62 Clamper CNM7239
63 Fan Motor CXM1175
64 ASL Unit CWM7039
65 Screw BSZ30P050FMC
66 Cord Assy CDE6267
67 Plug(CN4501) CKS-784
68 Case CNB2299
69 Case CNB2300
70 Remote Control Assy See Contrast table(2)
(1) EXTERIOR SECTION PARTS LIST
Mark No. Description Part No. Mark No. Description Part No.

10
DEH-P90DAB
71 Cover See Contrast table(2)
72 Chassis Unit CXB5323
73 Panel Assy CXB5325
74 Screw BMZ20P030FMC
75 Screw BPZ20P060FMC
76 Screw(M2x7) CBA1060
77 Screw(M2x3) CBA1061
78 Screw(M2x3) CBA1082
79 Screw(M2x3) CBA1154
80 Screw(M2x1.5) CBA1430
81 Screw(M1.4x4) CBA1454
82 Spring CBH2130
83 Cord CDE5960
84 Connector CKS3997
85 Roller CLA3583
86 Frame CNC8201
87 Spacer CNM6155
88 Spacer CNM6156
89 Spacer CNM6419
90 PCB CNP5355
91 PCB CNP5941
* 92 Panel CNS5906
* 93 Lighting Conductor CNV5391
94 Cover CNV5610
95 Guide CNV5672
96 Guide CNV5696
97 Rack CNV5697
98 Gear CNV5698
99 Gear CNV5761
100 Gear Unit CNV5762
101 Holder CNV5763
* 102 Lighting Conductor CNV6150
103 Switch(S951) CSN1012
104 Switch(S952) CSN1022
105 Arm Unit CXB3574
106 Frame Unit CXB3575
107 Holder Unit CXB3576
108 Bracket Unit CXB3577
109 Arm Unit CXB3866
110 Motor(M951) CXM1085
111 Washer 2-1816-0035-D2-00
112 Washer 2-1821-0045-D2-00
113 Detach Grille Assy See Contrast table(2)
114 Screw BPZ20P080FZK
115 Button(DISP) CAC6511
116 Button(OPEN) CAC6512
117 Button(RESET) CAC6513
118 Button(BAND) CAC6515
119 Button(1-6) See Contrast table(2)
120 Button(SOURCE) CAC6718
121 Knob(EQ) CAC6732
122 Spring CBH2415
123 Cushion CNM6767
124 Lighting Conductor CNV6214
125 Lighting Conductor CNV6215
126 Keyboard Unit See Contrast table(2)
127 Connector(CN1902) CKS3995
128 Connector(CN1901) CKS3996
129 Insulator CNM6775
* 130 PCB CNP5508
131 OEL Module MXK8002
132 Grille Unit See Contrast table(2)
133 Cover Unit CXB5340
134 Case Unit CXB5880
135 CD Mechanism Module(H2) CXK5301
136 Screw ISS26P055FUC
137 Transistor(Q911, 921, 998) 2SD2396
138 IC(IC241) PQ3RF23
139 IC(IC301) PAL005A
140 Resistor See Contrast table(2)
141 Cord Assy See Contrast table(2)
142 Fuse(10A) See Contrast table(2)
143 Cap See Contrast table(2)
144 Resistor See Contrast table(2)
145 Remote Control Assy See Contrast table(2)
146 Battery Cover See Contrast table(2)
Mark No. Description Part No. Mark No. Description Part No.

DEH-P90DAB
11
(2) CONTRAST TABLE
DEH-P90DAB/EW and ES are constructed the same except for the following:
Part No.
Mark No. Symbol and Description DEH-P90DAB/EW DEH-P90DAB/ES
6 Cord Assy CDE6248 Not used
7 Fuse(10A) CEK1136 Not used
8 Cap CKX-003 Not used
9 Cap CNS1472 Not used
32 Main Unit CWM7037 CWM7038
55 FM/AM Tuner Unit CWE1500 CWE1501
70 Remote Control Assy CZX3231 Not used
71 Cover CZN6410 Not used
113 Detach Grille Assy CXB5465 CXB5466
119 Button(1-6) CAC6650 CAC6651
126 Keyboard Unit CWM7249 CWM7250
132 Grille Unit CXB5328 CXB5329
140 Resistor RS1/2PMF102J Not used
141 Cord Assy Not used CDE6249
142 Fuse(10A) Not used CEK1136
143 Cap Not used CNS1472
144 Resistor Not used RS1/2PMF102J
145 Remote Control Assy Not used CXB3875
146 Battery Cover Not used CNS5032

12
DEH-P90DAB
2.4 CD MECHANISM MODULE
E

13
DEH-P90DAB
Mark No. Description Part No. Mark No. Description Part No.
1 CD Core Unit CWX2455
2 Connector(CN101) CKS3785
3 Connector(CN901) CKS4291
4 Connector(CN701) CKS4309
5 Screw BSZ20P035FMC
6 Screw(M2x4) CBA1362
7 Screw(M2x2.5) CBA1510
8 Screw(M2x3) CBA1511
9 Screw(M2x6.2) CBA1536
10 Washer CBF1037
11 Washer CBF1064
12 Spring CBH2291
13 Spring CBH2292
14 Spring CBH2293
15 Spring CBH2295
16 Spring CBH2297
17 Spring CBH2298
18 Spring CBH2299
19 Spring CBH2303
20 Spring CBH2304
21 Spring CBH2305
22 Spring CBH2308
23 Spring CBH2309
24 Spring CBH2332
25 Spring CBH2416
26 Spring CBH2434
27 Spring CBL1448
28 Spring CBL1466
29 Connector CDE6099
30 Shaft CLA3683
31 Shaft CLA3684
32 Lever CNC8501
33 Bracket CNC8507
34 Bracket CNC8509
35 Cushion CNM6301
36 Sheet CNM6773
37 Sheet CNM6774
38 Gear CNR1559
39 Arm CNV5928
40 Arm CNV5929
41 Gear CNV5930
42 Gear CNV5932
43 Gear CNV5931
44 Gear CNV5933
45 Holder CNV5943
46 Holder CNV5944
47 Arm CNV5948
48 Cover CNV5950
49 Holder CNV5951
50 Holder CNV6222
51 Holder CNV6223
52 Damper CNV6426
53 Holder CNV6446
54 Holder CNV6512
55 Chassis Unit CXB4501
56 Arm Unit CXB4503
57 Motor Unit(M3) CXB6620
58 Screw(M2x1.2) CBA1495
59 Guide CNV5925
60 Arm Unit CXB5311
61 Loading Arm Assy(-F) CXB5715
62 Washer CBF1060
63 Spring CBH2170
* 64 Shaft CLA3678
* 65 Gear CNV5934
66 Roller CNV6068
67 Holder CNV6210
68 Collor CNV6439
69 Arm Unit CXB5686
70 Washer YE20FUC
71 Washer CBF1038
72 Arm CNC8498
73 Lever Unit CXB4502
74 Screw(M2x1.5) CBA1509
75 Frame CNC8497
76 Sheet CNM6951
77 Guide CNV5924
78 Washer CBF1037
79 Spring CBH2300
80 Spring CBL1446
81 •••••
82 Spacer CNM6467
83 Ball CNR1189
84 Guide CNV5945
85 Clamper CNV5946
86 Arm CNV5947
87 Lever CNV5949
88 Arm Unit CXB4505
89 Screw JFZ20P020FMC
90 Frame CNC8496
-CD MECHANISM MODULE SECTION PARTS LIST

14
DEH-P90DAB
91 Damper CNV6426
92 Screw ISS20P060FMC
93 Screw(M2x3) CBA1511
94 Holder CNV6341
95 Roller CNV6389
96 Arm Unit CXB5970
97 Roller CNV6389
98 Arm Unit CXB5971
99 Load Motor Assy(-C)(M2) CXB6340
100 Carriage Motor Assy(-B)(M1) CXB6361
101 Screw Unit(-B) CXB6363
102 Screw ISS20P060FMC
103 Screw JFZ20P025FNI
104 Washer YE15FUC
105 Pickup Unit(Service)(P8) CXX1305
106 Screw IMS20P030FMC
* 107 Cover CNC9151
Mark No. Description Part No.

15
DEH-P90DAB

16
DEH-P90DAB
1234
1234
D
C
B
A
3. BLOCK DIAGRAM AND SCHEMATIC DIAGRAM
3.1 BLOCK DIAGRAM
CN451
BFM/AM TUNER UNIT
AMAIN UNIT
CN991CN701
RDS
DECODER
Q402
X501 3.648MHz
Q155
Q501
Q154
Q151 Q153
8
5
1
7
11
ASENB1
BUS2
BUS1
BUSL1
BUSL2
8
11 12
20
24
4
18
21
6
NL2
LDET
COMP
L-OUT
IC 501
PM4009A
Q3
CF202
X901
VDD
VCC
LOCL
VDD
B.UVDD
SYS+B
27
28
Q201 Q204
Q202
T51 Q51 CF51 CF52 CF53
ANT1 TV ANT2 TV
RF TV
AM RF
EEPROM
IC 3
BR9010FV
MIXER, IF AMP DET
IC 1
PML002A
FM/AM 1ST IF 10.7MHz
AM 2ND IF 450kHz
FM FRONT END
5
6
4
3
8
35
33
38 42 46
32
4439
45 55 57 61 74 75
71
65
78
54
70
69
63
25 24
19
46131211444134 33
22
IC 2 PM4008A
22 10 14 7 12 15 16 8 13 2 3
DI/DO CE2 CK CE1 SDBW SL FMSD NL1
CN101
Q401
25
22
ECD CORE UNIT
M
LASER
DIODE
MONITOR
DIODE
FOCUS ACT.
CARRIAGE
MOTOR
M
LOADING
MOTOR
SPINDLE
MOTOR
TRACKING ACT.
LD(–)
MD
+5V
FO+
TO+
17
8
3
4
PICKUP UNIT (SERVICE) (P8)
HOLOGRAM
UNIT
IC 401
BA5811FM
IC 301
TC9495FP
IC 801
BA05SFP
+5V REGULATOR
Q9
5
SPDIFG
21
8
ND
VD
V+5
20
CONT
11
CDEJET 10
CDLOAD
22
LOUT LOUT
10 CDLOAD
11 CDEJCT
20 CONT
5FG
21 SWSNS
8VD1
13
CD5VON 13 CD5V
23 IC 401
S-81250SGUP
POWER ON MUTE
CN901
CN101
AC/F/E/BD
EC
JM
VCC
CONTST/SP
FG
CLAMPSW
15
16
10
22
9
1
1
2
77
X301
78
2
21
MUTE
13
8
9
66
4
HOME
11 HOME
SW
Q102
IC 201
TA2150FN
RF AMP
MDI
LDO
VD
V+5
M
9
7
12
10
1
2
3
4
11
6
Q101
IC 2606
PD8072A
Q2101
D2106
CAO CBO CCO
D2108 D2109
F2001
RFAGC
ANT-D
Q2001
IC 2001
U2730B-BFS
BAND3
RF AMP
L-BAND MIX
26
23 19
18
19
12
7
8
9
F2201
Fc = 38.912MHz
SAW FILTER
IC 2201
U2731B-MFN
1st MIX
IC 2603
TC7SH04FU
10 6 13
24
15VIN
CLK
D0-9
39
22
IC 2502
ADS933Y-1
A/D
CONVERTER
DAB DECODER
IC 2604
U2739M-A
IC 2605
TC55V8512FTI-15
SRAM
USEROM
SYSTEM CONTROLLER
IC 2801
PD5565A
IC 2803
TC7W125FU
26
35
IC 2802
BR9010FV
65
IC 2202
NJM2360M
37
OSCO
OSCI
CPRFSWB
43
42
ADC_CLK
1
284
SLI
WAGC
SLI
W_AGC
21
CPIF
16
22
20
19
X2201
18.432MHz
11
13
X2801
10.00MHz
8.192MHz
Q2202
Q2102
Q2201
RFAGCL BAND
V8RF
BAND3 BAND SWITCH
BAND3
V8RF
CF2201
Fc = 2.048MHz
IC 2601
TC7SET04FU
24
DABPW
SYSPW
bsens
asens
reset
IPIN1
IPOUT
IPPW
SYSMUTE
icres 38
L3CLK 35
L3MODE 36
IPIN2
CN2001
ANT
ANT
CAO
CBO
CCO
RFA1 SAW1
40
VD
39
PD
29
IFOUT
6
SWC
3
SWA
SAW2
14 RFB1
FREF
32-35
IFIN1
23
24
IFIN2
13
X2601
24.576MHz
IC 2702
NJM2115V
D/A
CONVERTER
6
4
7LCH
VDD
MCMTRG2
4
SDA 84
SCL 85
LPLCK
83
MCM_TRIGER
50
MC_DAT
53
RS–
17
MC_CLK
52
MC_MODE
51
MCMTRG1
16
L3OUT
33
L3IN
34
ROMDO
66
ROMDI
67
IFAGC
92
3
4
romcs
70
romsk
68
8romwc
69
IC 2501
TC7S66FU
1
4
2
IC
PQ3
2
Q2203
XIN 14
XOUT 15
RDI_TX 61
TESTOUT 81
28
27
20
SEL1 99
26
100
10
18
17
98
25
19
Q2153
Q2155
V8RF
RFAGC
SWB
Q2152
Q2151
IC 2151
S-81250SGQD
AGC DET
32
51314 15 5
SCL 1
SDA 2
X2001
1261.568MHz
18.432MHz
Q2154 Q2202
V8RF
ANT-D
DDAB TUNER MODULE
IC 2701
PCM1716E-5
516
IC 2602
TC7WH74FU
1
5
ANT-D
VCO
24
AGND 22
RDI RDI
20
IFOUT
IPOUT
4
DGND 5
GND 3
12
IPIN 13
SYSPW 16
SEL1 18
IPPW 14
SYSMUTE 17
LCH
24
AGND
22
VDD
88
RDI
20
reset 21 reset
21
bsens 10 bsens
10
asens 11 asens
11
IFOUT
IPOUT
4
12
IPIN
13
IPPW
14 SYSMUTE
17
DABPW 15 DABPW
15
MODEL1 MODEL1 19 MODEL1
19
V8RF 1V8RF
1
VANT 2VANT
2
VCC 7VCC
7
V3D
V3D
VCC
VANT
V8RF
9V3D
9
IC
CA00
IP-BUS
1
2
8
DGND
5GND
3
VDD
FASL UNIT
IC 4502
NJM4558MD
IC 4501
NJM4558MD
MIC
Q4501 VR4501 ASL AMP ASL AMP
7
3
1
322
CN141
CN4501
CN251
MIC4501
NOISE NOISE
Q246
Q247
VDD
B

17
DEH-P90DAB
5678
5678
D
C
B
A
IC 101
CA0008AM
IP-BUS DRIVER
Q101
Q102
B.U
5
6
1
2
8IPPW
RX
TX
IPPW
RX
TX
86
85
66
PEE 100
MODELOUT
67
IN3_L Frontout_L
42 10
B.U
B.U
bsens 93
asens 92
isens 49
TELIN
VST
VDT
VCK
42
Rearout_L
FLIN
RLIN
SYSPW
B.U
11
12
A
9
11
14
22 4 25
Preout_L 9
Seiout_L 1
X2 15
X1 16
FLPILM 2
RXD 95
dsens 99
reset 11
OELPW 6
SWVDD 7
TXD 96
ILMPW 1
RL–23
RL+ 21
FL–3
FL+
RL22
ILL1
ACC1
GND3
BUP2
B.U
RL21
FL22
BRE1
FL21
FL1
5
IN4+_L
43
IN4–_L
44
IN2_L
41 IN1_L
40
ASLIN
77
ASENBO
65
SL
74
NL1
76
SDBW
30
TUNPCE
28
TUNPCK
97
TUNPDO
98
TUNPDI
94
LOCL
25
TUNPCE2
29
SD
33
NL2
32
LDET
88
fm/AM
45 tmute
31
IC 203
PML004AF
IC 301
PAL005A
IC 271
PA2028A
ELECTRONIC VOLUME/
SOURCE SELECTOR POWER AMP
HIGH OUT
RCA OUT
AUTOMATIC FLAP
MOTOR AND SENSE
SYSTEM
CONTROLLER
IC 601 (1/2)
PE5092A
SYSTEM
CONTROLLER
IC 601 (2/2)
PE5092A
MUTE STBY B.REMOTE
16
14
718
Q301
Q261
Q352
Q353
Q351
Q981
Q982 Q921 Q923
Q922
IC 1901
PD5555A
OEL MODULE
X1901
15.62MHz
11
33
13
Q931
Q932
Q951
SYS+B B.U
X601
12.58291MHz
SYSPW
7
RL1
SWL
3
11
2
1
2
5
3
TEL1 8
9
11
10
12
4
CN901
CN971
CN351
GND 1
dabrst
64
MUTE 48
SYSPW 21
AVREF 83
AVDD 82
ADPW 79
FLPPW 68
ASLSIGIN 78
XOUT
KYDT
34 DPDT
XIN
5
1
4
REM
SP641
ALARM
BUZZER
IC 141
NJM4558M
63
SYSPW
B.U VM1
SWDVDD
VDD
SWDVDD OPT IN
55
22
63
75
90
Q991
Q998
52 CDLOAD
53 CDEJECT
63 CONT
B.U
FG
SWSNS
80 VDSNS
CLANP
VDCONT
CD5VON
IC 241
PQ3RF23
21
IC 251
CA0008AM
IP-BUS DRIVER
1
2
5
6
8
Q252
Q251
VDD
DAB5V
DAB8V
VDD
Q245
Q243
Q244 Q248
Q241
Q242
Q246
Q247
FAN
Q972
Q973
Q971
SYSPW
REMOTE CONTROL
SENSOR
IC 1903
RS-140
KEY
MATRIX
IC 1902
PD8062A
11 RST
8SWDVDD
9ILB
CN1901
CN801
1dsens
4KYDT
5
2
5
4
2OELB
11
12
9
8DPDT
RST2
SWVDD
ILB
dsens
KYDT
OELB
DPDT
CKEYBOARD UNIT
Q806
Q807
B.U
Q805
B.U
VDD
RESET
IC 961
S-80834ANUP-EDY
12
Q962
B
A
Q601
Q852
Q853
Q851
FLPCLS 71
fclssw 69
fopnsw 70
FLPOPEN 72 IC 851
BA6288FS
11 14
63 4
CN851
MOTOR2
GND
FOPSW1
FCLSW1
MOTOR1
1
5
3
2
M
DALMON 20
B.U
B.U
VDD
VDD
Q913
Q911
Q942
Q941
B.U
VDD
Q808
Q801
Q802
Q803
RR
+
RR
-
FR
+
FR
-
FL
+
FL
-
RL
+
RL
-
ACC
ANT
GND
ILL
BACK
UP
BACKUP
GND
ILL
ACC
MUTE
B.REM

18
DEH-P90DAB
1234
1234
D
C
B
A
3.2 OVERALL CONNECTION DIAGRAM(GUIDE PAGE)
Note: When ordering service parts, be sure to refer to “EXPLODED VIEWS AND PARTS LIST” or “ELECTRICAL PARTS
LIST”.
A-a A-b
A-a
A-a
A-b
A-b
A-b
A-b
A-a
A-a
Large size
SCH diagram
Guide page
Detailed page
A
AUTOMATIC FLAP MOTOR AND SENSE
1R6K 2R7K
2R7K 1R6K
R012 R018
M951
CXM1085
AUTOMATIC
FLAP MOTOR S951
CSN1012
CLOSE
S952
CSN1022
OPEN
123
4
56
7
8
91011
IP-BUS:+2.2dBs
CD:+3.6dBs
DAB:+2.2dBs
FM(100%):-15.5dBs(EW), -19.5dBs(ES)
AM(30%):-26dBs(EW), -30dBs(ES)
SYSTEM CONT
BFM/AM TUNER UNIT
CKEYBOARD UNI
DDAB TUNER MODULE
ECD CORE UNIT FASL UNIT
A-a
A
MAIN UNIT

19
DEH-P90DAB
5678
5678
D
C
B
A
A
RR
+
RR
-
FR
+
FR
-
FL
+
FL
-
RL
+
RL
-
ACC
ANT
GND
ILL
BACK
UP
BACK UP
CEK1136
10A
GND
ILL
1K(1/2W)
B REMOTE
ACC
1K(1/2W)
MUTE
RL-
FL-
RL+
FL+
RR-
FR-
RR+
FR+
CD:+3.6dBs
IP-BUS, DAB:+2.2dBs
FM(100%):-16.5dBs(EW), -20.5dBs(ES)
AM(30%):-27dBs(EW), -31dBs(ES)
CD:+8.7dBs
IP-BUS, DAB:+8.3dBs
FM(100%):+4.6dBs(EW), +2.6dBs(ES)
AM(30%):-3.9dBs(EW), -7.9dBs(ES)
CD:+34dBs IP-BUS, DAB:+34dBs FM(100%):+30dBs(EW), +28dBs(ES) AM(30%):+22dBs(EW), +18dBs(ES)
TROLLER
A : DEH-P90DAB/EW
B : DEH-P90DAB/ES
T
A-b

20
DEH-P90DAB
1234
1234
D
C
B
A
1R6K 2R7K 2R7K 1R6K R012 R018
123
4
56
7
8
91011
IP-BUS:+2.2dBs
CD:+3.6dBs
DAB:+2.2dBs FM(100%):-15.5dBs(EW), -19.5dBs(ES) AM(30%):-26dBs(EW), -30dBs(ES)
IT DDAB TUNER MODULE
ECD CORE UNIT FASL UNIT
A-a
A-a A-b
1 2
A
MAIN UNIT