Kenwood KDC-MP4036U User manual

This product uses Lead Free solder.
This product complies with the RoHS directive for the European market.
CD RECEIVER
SERVICE MANUAL
KDC-MP4036U/MP435U/X491
KDC-W4537UA/W4537UAY
KDC-W4537UG/W4537UGY
KDC-W4737U/W4737UY
* Depends on the model. Refer to the parts list.
Panel assy
KDC-MP4036U (A64-4129-12)
Panel assy
KDC-MP435U (A64-4126-12)
SPARE TDF PANEL
MAIN UNIT NAME TDF PARTS No. TDF NAME
KDC-MP4036U Y33-2720-64 TDF-MP4036U
KDC-MP435U Y33-2720-61 TDF-MP74D
KDC-W4537UA Y33-2720-63 TDF-W4537U
KDC-W4537UAY Y33-2720-63 TDF-W4537U
KDC-W4537UG Y33-2720-63 TDF-W4537U
Panel assy
KDC-MP4737U/MP4737UY (A64-4175-12)
Panel assy
KDC-X491 (A64-4221-12)
KDC-W4537UGY Y33-2720-63 TDF-W4537U
KDC-W4737U Y33-2720-62 TDF-W4737U
Panel assy
KDC-W4537Uxx (A64-4127-12)
Mounting hardware assy
(J21-9716-03)
Lever
(D10-4589-04) x2
* DC cord
(E30-6428-05)
* Screw set
(N99-1757-05)
* DC cord
(E30-6671-05)
* Antenna adaptor
(T90-0523-05)
* Plastic cabinet assy
(A02-2736-03)
* Remote controller assy (RC-xxx)
(A70-xxxx-xx)
Battery
(Not supplied)
* Carrying case
(W01-xxxx-xx)
Escutcheon
(B07-3125-01)
KDC-W4737U
KDC-X491
KDC-W4537U
KDC-MP435U
KDC-MP4036U
KDC-W4737UY Y33-2720-62 TDF-W4737U
KDC-X491 Y33-2720-60 TDF-MP74DX
© 2007-4 PRINTED IN JAPAN
B53-0513-00 (N)552

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KDC-MP4036U/MP435U/X491/W4537UA/W4537UAY
/W4537UG/W4537UGY/W4737U/W4737UY
BLOCK DIAGRAM
(X16- )
ELECTRIC UNIT (X34- )
SWITCH UNIT
FRONT-END
A500
LX BUS
E-VOL
PRE OUT
PRE OUT
PRE OUT
AUX IN
IC400
IC500
IC100
UP
BACK
RESET
IC BU5V P-CON
ANT-CON
ACC DET
DIMMER
SURGE DET
BU DET
Q3,4
BU 5V
SW 20V
Q8,9
Q10-12,18
ILL+B
SW 14V
A8V
SERVO
Q5,7
SW 5V
Q13,14
P CON
ANT CON
DIMMER
ACC
BACK UP
LINE
SP OUT(FR)
SP OUT(RL)
SP OUT(FL)
SP OUT(RR)
REMOTE
(SW)
(FRONT)
(REAR)
WIRED
TEL MUTE
IC101
USB5V
BU5V
SW MUTE
ILLUMI+B
CN
REMOTE
ED1
FL+B
R224
J1
J200
S1
S2
R17
Q200
DSI
Q15
Q50,58
Q53,56
Q60
Q57
R62,C57,D58
Q59
Q51
Q1,2,16
Q17
PANEL
5V
Q15
4VPRE
Q300,302
AM+B
Q500,501
SW 14V
FDC
USB 5V
SW
HI-SIDE
SERVO
IC1IC100
+B
4VPRE
SW 14V Q301
Q6
SW 14V
Q20
Q21
PANEL
5V
IC103
J600
J1
CN600
WH1
J1
Q600,602-605,607Q601,606
DRIVER
MUTE
MUTE
PRE
POWER
IC
SYSTEM
u-COM
ENCODER
ROTARY
ILLUMI
KEY KEY
MATRIX
Rx1
1/2W
1/2W
Rx1
FL
RESET
SW
GND
PANEL
DET
to
ROM
MEMORY
INSTALLER
DECODER
RDS
CORRECTION
J601
SW5V
AM+B
A8V
D5V
DAC
2ch
A5V
LPF
IC705 IC705
IC704
A8V
CD
DME1
SOC
IC711
DIR
D1.8V
SD RAM
NOR FLASH
SHIFT
LEVEL
SERVO
IC703
IC716
IC709,710,712
D3.3V
IC714
IC715
IC300
IC700
IC102
4VPRE+B
USB5V PAN SW5
FL
DRIVER
IC1
USB CN
J2
BU5V
E2PROM
FST
FM/AM
AUX (ISO IN)
CH
CD
OFFSET
MPX for RDS
RST
PRE MUTE
MUTE
215
for SOC
USB I/F
(IC711)

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KDC-MP4036U/MP435U/X491/W4537UA/W4537UAY
/W4537UG/W4537UGY/W4737U/W4737UY
DPU1
CD PLAYER UNIT (X32-598x-xx)
BOARD (X34- )
MOTHER
EF
A
C
B
TR COIL
FO COIL
APC
IC1
16.93MHz
CLOCK
IC6
8V SW
3.3V REG
IC3
LOADING &
RF AMP
SERVO
PROCESSOR
MOTOR
DRIVER
MOTOR
SPINDLE
3.3V REG
IC2
S2
S4
S1
S3
+
+
ONLY
SLED
MOTOR
DM1
DM2
Q1
X2
Q7
PROCESSOR
MICRO
1 CHIP IC
LEVEL SHIFT
LEVEL SHIFT
LEVEL SHIFT
Q3
Q3
Q4
(0-00),(0-01) ONLY
SW
Q2
SW
Q8,9
3.3V SW
Q6
SW (0-01),(0-03)
ONLY
(0-00),(0-01)
X1 or
VREF
D.GND
BU5V
8EJE-SW
12EJE-SW
LOS-SW
LOE/LIM-SW
D.GND
MOTOR
LO/EJ
S.GND
D.GND
D.GND
S.GND
A.GND
AS8V
R-ch
L-ch
S.GND
DMUTE
A,B,C,E,F
VREF
TR OUT
FO OUT
DM OUT
FM OUT
TVD,SPL
FOD,TRD,
DATA
CLK
MSTOP
RST
MUTE
MUTE
CLK
DATA
MSTOP
MRST
D.GND
S7V
AVDD
REGVDD
P-ON1
IOVDD
BLOCK DIAGRAM

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KDC-MP4036U/MP435U/X491/W4537UA/W4537UAY
/W4537UG/W4537UGY/W4737U/W4737UY
COMPONENTS DESCRIPTION
●ELECTRIC UNIT (X34-466x-xx)
Ref. No. Application / Function Operation / Condition / Compatibility
IC1 SW REG Outputs 5.0V. Power supply for D5V, FL+B and USB5V.
IC2 A8V REF Power Supply Outputs 1.27V.
IC100 Reset IC Lo when detection voltage goes below 3.6V.
IC102 System µ-COM Controls FM/AM tuner, the changer, CD mechanism, USB, panel, volume and tone.
IC103 Muting Logic IC Controls logic for muting.
IC200 Hi-side SW Overcurrent protection of USB power supply.
When pin1 goes Hi, USB5V is ON.
IC300 E-VOL Controls the source, volume and tone.
IC301 OP-AMP Reference supply for 4V pre-out.
IC400 Power IC Amplifies the front L/R and the rear L/R to 50W maximum.
IC500 RDS Decoder Decodes RDS signal.
IC700 D/A Converter. For CD and USB source.
IC702 iPod Authentication Coprocessor For iPod authentication.
IC703 Digital Audio Receiver For CD source.
IC704 OP-AMP L.P.F.
IC705 Point REG Outputs 5.0V. Power supply for D/A converter.
IC708 DC Voltage REG Outputs 3.3V. Power supply for 3.3V.
IC709,710 Inverted 3-state Output Converts 3.3V to 5V.
IC711 SOC (System On Chip) Decodes MP3 or other files of audio/decompression standards by software based
architecture.
IC712 Quad 2-input AND Gate Convert 5V to 3.3V.
IC714 SDRAM SDRAM for SOC.
IC715 NOR Flash ROM NOR flash ROM for SOC.
IC716 LDO REG Outputs 1.8V. Power supply for SOC.
Q1,2,16 A8V AVR When Q16’s base goes Hi, A8V AVR outputs 8.0V.
Q3,4 BU5V AVR While BU is applied, BU5V AVR outputs +5V.
Q5,7 Servo+B AVR When Q7’s base goes Hi, Servo+B AVR outputs 7.5V.
Q6,17,20,21 SW14V When Q17’s (or Q21's) base goes Hi,SW14V outputs 14V.
Q8,9 Serge Protect for IC1 Output 20V when BU is over 20V.
Q10,11,12,18 ILL+B AVR When Q18’s base goes Hi, ILL+B outputs 10.5V.
Q13,14 SW5V When Q14’s base goes Hi, SW5V outputs +5V.
Q15 PAN5V When the base goes Lo, PAN5V outputs 5V.
Q50,58 P-CON SW When Q50’s base goes Hi, AVR outputs 14V.
Q51 BU DET When the base goes Hi, Q51 is turned on.
Q52,54 P-CON Protection When P.CON output voltage decrease is detected, output protection is made.
When P.CON SW is ON, malfunction of Q58 is protected.
Q53,56 P-ANT SW When Q53’s base goes Hi, P-ANT SW outputs 14V.
Q57 ACC DET When the base goes Hi, Q57 is turned on.
Q59 Serge DET When the base goes Hi, BU DET is turned off.
Q60 Small Lamp DET SW When the base goes Hi, Q60 is turned on.
Q200 DSI When the base goes Hi, security indicator lights.

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KDC-MP4036U/MP435U/X491/W4537UA/W4537UAY
/W4537UG/W4537UGY/W4737U/W4737UY
Ref. No. Application / Function Operation / Condition / Compatibility
Q300,302 4VPRE+B Protect When 4VPRE+B is overcurrent, Q300 and Q302 turn Q301 off.
Q301 4VPRE+B AVR When Q300’s base is 8V, 4VPRE+B outputs 7.4V.
Q500,501 AM+B When Q501’s base goes Hi, AM+B is output.
Q601,606 Pre-out Mute Driver When a base goes Lo, mute driver is turned on.
Q600,602,603,
Q604,605,607 Pre-out Mute SW When a base goes Hi, pre-out is muted.
Q704,706 M-RST Converter Converts 3.3V to 5V.
●SWITCH UNIT (X16-389x-xx)
Ref. No. Application / Function Operation / Condition / Compatibility
IC1 FL Driver
IC3 Remote Control Sensor
Q1 LED LED SW On when the base goes Hi. (RED LED lights)
Q2 GREEN LED SW On when the base goes Hi. (GREEN LED lights)
●CD PLAYER UNIT (X32-5980-02)
Ref. No. Application / Function Operation / Condition / Compatibility
IC1
CD Signal Processor & MECHA
µ-COM RF Amplifier responding to
CD-RW
Focusing, tracking, sled and spindle servo processing.Automatic adjustment (focusing,
tracking, gain, offset and balance) operations. Digital signal processing (DSP, PLL,
sub-codes, CIRC error correction, audio data interpolation processing) operations,
and microcomputer function. Generation of RF signal based on the signals from the
APC circuit and the laser pick-up, and generation of servo error (focusing error and
tracking error) signals. Detection of dropout, anti-shock, track crossing and off-tracking
conditions, included gain control function during CD-RW.
IC2 3.3V REG Supplies 3.3V to IC1 and the laser pick-up.
IC6 4ch BTL Driver
Focusing and tracking coil, sled and spindle motor driver, disc loading and eject operation.
Q3 5V-3.3V Level Shift Shifts 5V to 3.3V, or 3.3V to 5V.
Q6 BU3.3V SW Q6 is ON when Q8 or Q9 is ON.
Q7 APC (Auto Power Control) Drives LD (Laser Diode).
Q8 Power Supply Control Power Supply Control from MECHA µ-COM. Q6 is ON when pin 63 (P ON1) of IC1 is Hi.
Q9 Power Supply Control Power Supply Control from system µ-COM. Q6 is ON when pin 125 (MSTOP) of IC1 is Hi.
D1,2 5V Force Voltage Prevention 5V Force Voltage Prevention from MECHA µ-COM side.
D3 Laser Diode Protection Prevents reverse bias which is applied to laser. Laser destruction prevention.
COMPONENTS DESCRIPTION

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KDC-MP4036U/MP435U/X491/W4537UA/W4537UAY
/W4537UG/W4537UGY/W4737U/W4737UY
MICROCOMPUTER’S TERMINAL DESCRIPTION
●SYSTEM µ-COM: IC102 on X34- (ELECTRIC UNIT)
Pin No. Pin Name I/O Application Truth
Value Table
Processing / Operation / Description
1 REMO I External display remote control input
Panel remote control input
Panel attached: Pull-up
Panel detached: Pull-down
2 LX REQ M O Communication request to slave unit
3 LX MUTE I Communication request from slave unit H: Mute ON, L: Mute OFF
4 LX CON O Start-up request to slave unit H: Slave unit ON, L: Slave unit OFF
5 LX RST O Forced reset to slave unit H: Reset, L: Normal condition
6 BYTE -
7 CNVSS -
8 XCIN - Sub clock 32.768kHz
9 XCOUT - Sub clock 32.768kHz
10 RESET -
11 XOUT - Main clock 12.00MHz
12 VSS -
13 XIN - Main clock 12.00MHz
14 VCC1 -
15 NMI -
16 LX REQ S I Communication request from slave unit
17 RDS CLK I RDS decoder clock input
18 PANEL DET I Detection of panel connector detached/
attached H: Panel detached, L: Panel attached
19 PON AM I/O AM power supply control AM reception: H, No AM reception: Hi-Z
20 TUN IFC OUT I Front-end IFC-OUT input H: Station found, L: No station
21 RDS AFS M I/O Noise detection time constant SW
22 RDS QUAL I RDS decoder QUAL input
23 RDS DATA I RDS decoder data input
24 USB SYNC O Clock output for SW-REG
25 NC - Not used Output L fixed
26 PWIC BEEP O Beep output
27 TUN SCL I/O Front-end I2C clock input/output MAX400kHz
28 TUN SDA I/O Front-end I2C data input/output
29 VFD SYS DATA I/O VFD data input/output
30 VFD PAN DATA I VFD INT input
31 VFD CL O VFD clock output 125kHz
32 VFD BLK O VFD reset
H: Reset cancelled, L: Reset
Momentary power down or Panel detached or 11
minutes after ACC OFF: L
33 S SYS DATA O System µ-com→SOC data
34 S SOC DATA I SOC→System µ-com data

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/W4537UG/W4537UGY/W4737U/W4737UY
Pin No. Pin Name I/O Application Truth
Value Table
Processing / Operation / Description
35 S SOC SCL I SOC→System µ-com clock
36-38 NC - Not used Output L fixed
39 ROMCOR DET I E2PROM writing request H: Writing
39 EPM I EPM input when writing
40 DSI I/O DSI control
41 CD DISC12 SW I 12cm CD detection
42 CD LOS SW I CD loading detection
43 CD MUTE I CD mute request L: Mute request, H: Normal condition
44 VFD CE O VFD control request H: VFD data transfer ready
45 SOC S RST O SOC reset H: Normal condition, L: Reset
46 SOC S STOP O SOC stop H: Normal condition, L: SOC stopped
47 NC - Not used Output L fixed
48 CD LOE LIM SW I CD detection (Chucking SW) H: Loading completed, L: No disc
49 CD LOEJ I/O CD motor control qRefer to the truth value table
50 CD MOTOR O CD motor control qRefer to the truth value table
51 ROTARY CW I VOL key detection Detects pulse
15-pulse/360°, 2-pulse/1-click
52 ROTARY CCW I VOL key detection Detects pulse
15-pulse/360°, 2-pulse/1-click
53 PON PANEL I/O Panel 5V power supply
ON (For 11 minutes after ACC OFF): L
Momentary power down or Panel detached or 11
minutes after ACC OFF: Hi-Z
54 PON FL+B I/O FL filament power supply H: ON, Hi-z: OFF
55 SW USB I/O VBUS5V control H: ON, Hi-z: OFF (Depends on command order from
SOC)
56 NC - Not used Output L fixed
57 PON ILL O Key illumination power supply H: Power ON, L: Power OFF
58,59 NC - Not used Output L fixed
60 VCC2 -
61 PON O Power supply control H: Power ON, L: Power OFF
62 VSS -
63,64 TYPE 1,2 I Destination setting wRefer to the truth value table
65 NC - Not used Output L fixed
66 PCON O External amplifier control
67~69 NC - Not used Output L fixed
70 ANT CON O Power antenna control Tuner ON: H
71 NC - Not used Output L fixed
72 ACC DET I ACC power supply detection ACC found: L, No ACC: H
73 BU DET I Detection of momentary power down BU found: L, Momentary power down: H
MICROCOMPUTER’S TERMINAL DESCRIPTION

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KDC-MP4036U/MP435U/X491/W4537UA/W4537UAY
/W4537UG/W4537UGY/W4737U/W4737UY
Pin No. Pin Name I/O Application Truth
Value Table
Processing / Operation / Description
74 ILLUMI DET I Dimmer illumination detection L: ON, H: OFF
75 S SYS REQ O Communication request of system µ-com
→SOC
76 S SOC REQ I Communication request of SOC→system
µ-com
77 PWIC MUTE O Power IC mute control
78 PWIC STBY O Power IC standby control
79 LINE MUTE I Line mute detection TEL mute: Below 1V, NAVI mute: Over 2.5V
80 PWIC DC DET I DC offset detection
81 IC2 SDA I/O I2C data input/output
82 IC2 SCL I/O I2C clock input/output
83 NC - Not used Output L fixed
84 MUTE AFS I/O AFS mute L: Mute ON, Hi-Z: Mute OFF
85 MUTE 0 O E-VOL front mute L: ON, H: OFF
86 MUTE 1 O E-VOL rear mute L: ON, H: OFF
87 MUTE 2 O E-VOL SW mute L: ON, H: OFF
88 MUTE PRE FR O PRE-OUT mute for FR
Mute is L during CD play: L
Momentary power down: L
Only condition when DUAL ZONE or NAVI INT: H fixed
89 MUTE PRE SW O PRE-OUT mute for SW L: Mute ON, H: Mute OFF
90,91 NC - Not used Output L fixed
92 RDS NOISE I FM noise detection
93 TUN SMETER I S-meter input
94 AVSS -
95 NC - Not used Output L fixed
96 VREF -
97 AVCC -
98 LX DATA S I Data from slave unit
99 LX DATA M O Data to slave unit
100 LX CLK I/O LX-BUS clock
Truth value table
qCD motor control
CD MOTOR (Pin50) CD LOEJ (Pin49)
Stop L L
Load H L
Eject H H
Brake H Hi-z
MICROCOMPUTER’S TERMINAL DESCRIPTION
wDestination setting
TYPE 2 (Pin64) TYPE 1 (Pin63) MODEL
0V 0V KDC-MP435U
0V 1.2V KDC-X491
0V 2.4V VISTEON
1.2V 0V KDC-MP4036U
2.4V 0V KDC-W4537UA
2.4V 1.2V KDC-W4537UG
2.4V 2.4V KDC-W4737U
3.6V 0V KDC-W4537UAY
3.6V 1.2V KDC-W4537UGY
3.6V 2.4V KDC-W4737UY
5V 0V U525

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KDC-MP4036U/MP435U/X491/W4537UA/W4537UAY
/W4537UG/W4537UGY/W4737U/W4737UY
TEST MODE
●How to enter the test mode
Press and hold the [1] and [3] keys and reset.
(While “– – – –” is being displayed, power can be ON for
30 minutes.)
●How to clear the test mode
Reset, momentary power down, Acc OFF, Power OFF,
detach the panel.
●Test mode default condition
• Source is STANDBY.
• Display lights are all turned on.
• The volume is at 30 (-10dB).
• LOUD is OFF.
• CRSC is off regardless of the availability of switching
function.
• SYSTEM Q is NATURAL (=FLAT).
• BEEP should always function when the key is pressed
briefly.
• AUX is ON (Internal AUX supporting model).
●Speciication of the test mode for tuner sourse
The frequency of 98.3MHz is received when the [4] key is
pressed in the TUNER FM mode
●Specification of FST soft mute adjustment mode
1. Receive the TUNER FM mode in the VOLUME 30 and
LOUD OFF condition.
2. Press and hold the [ ]key for 2 seconds to enter the
FST soft mute adjustment mode.
3. In the adjustment mode, the following display is shown.
Adjust the mute between 0 (18dBu) and F (36dBu) with
the [FM] / [AM] keys.
(Display) SMD–x_ _ _ (Adjustment value, 0~F is displayed
in “x”).
4. When the adjustment is “OK”, press and hold the [ ] key
for 2 seconds again to write the adjustment value in
the E2PROM, and after the successful writing-in the
“EP_WRITE” is displayed.
5. Press the [ ]key briefly to exit from the FST soft mute
adjustment mode.
(The test mode continues.)
●RDS automatic measurement
Add the process to replace the visual inspection of PS
display previously done in the production line.
When it is confirmed that the PS data has been received
and that the content of the PS is “RDS_TEST”, force to
OFF the P-CON terminal. ( The symbol, “_” indicates the
blank. )
→Make this as the process dedicated for the test mode.
P-CON is recovered by Power OFF→ON.
●Special display in tuner mode
Error is found in front-end, etc. if indications below are
displayed while in tuner mode.
• “TNE2P_NG” : E2PROM (in front-end: A500 of X34-)
values are still default (not determined)
• “TNCON_NG” : Cannot communicate with the front-end.
●K3I forced switching
Every time when [6] key is pressed in tuner FM mode,
switched in the following order: AUTO→Forced WIDE
→Forced MIDDLE→Forced NARROW→AUTO. Default
status is AUTO, and displayed as shown below.
• AUTO: FM1_98.1A • Forced WIDE: FM1_98.1W
•
Forced MIDDLE: FM1_98.1M • Forced NARROW: FM1_98.1N
●CD source test mode specification
• Display mode default setting shall be P-TIME.
• Jumps to the following tracks by pressing the [ ] key.
No.9→No.15→No.10→No.11→No.12→No.13→No.22→
No.14→No.9 (recursive)
Note that when playing a CD-DA disc and MP3 / WMA
/ AAC / WAV discs with 8 files or less, the disc is played
from the 1 track in the normal order.
• Pressing the [ ] key goes back by 1 track from the track
being played.
• When playing an MP3 / WMA / AAC/WAV disc, display
the file format before starting to play each file.
( “MP3”, “WMA”, “AAC”, “WAV” )
• While in CD source, press the [1] key briefly to jump to
No.28.
• While in CD source, press the [2] key briefly to jump to
No.14.
• While in CD source, press the [3] key briefly to display CD
mechanism model name and the version.
Press the [3] key briefly again to return to the normal
display. (Time code display)
6C20:0123
Model name Version
• While in CD source, press the [6] key briefly to jump to
No.15. At this time, the volume value is set to 25 (2V
PRE), 27 (4V PRE).

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KDC-MP4036U/MP435U/X491/W4537UA/W4537UAY
/W4537UG/W4537UGY/W4737U/W4737UY
●AUDIO adjust mode
• Press the [AUD] key and enter the audio adjustment
mode.
• Press the remote control [∗] key and [AUD] key to enter
the audio adjustment mode.
• Both AUDIO FUNCTION MODE and SETUP MODE
adjustment items are included.
• By pressing [AUD] and [FM] key briefly, switch the item
to be adjusted in the following order. (Only in forward
rotation)
The default item shall be Fader, and then the item is
forwarded in the following order: Balance →Bass Level
→Middle Level →Treble Level →HPF Front →HPF
Rear →LPF Sub Woofer. (thereafter arbitrary)
• Continuous forwarding by remote control is prohibited.
• Fader is adjusted by the VOL knob and [ ] / [ ] keys
in 3 steps: R15 ↔0 ↔F15. (Default value: 0)
• Balance is adjusted by the VOL knob and [ ] / [ ] keys
in 3 steps: L15 ↔0 ↔R15. (Default value: 0)
• Sub Woofer Level is adjusted by the VOL knob and [ ] /
[ ] keys in 3 steps: -15 ↔0 ↔+15. (Default value: 0)
• Bass/Middle/Treble Level are adjusted by the VOL knob
and [ ] / [ ] keys in 3 steps: -8 ↔0 ↔+8. (Default
value: 0)
• HPF Front / Rear is adjusted by the VOL knob and [ ]
/ [ ] keys in 2 steps: Through ↔180Hz. (Default value:
Through)
• LPF Sub Woofer is adjusted by the VOL knob and [ ]
/ [ ]] keys in 2 steps: 60Hz ↔Through. (Default value:
Through)
• Sub Woofer Phase is adjusted by the VOL knob and [ ]
/ [ ] keys in 2 steps: Reverse ↔Normal. (Default value:
Normal)
• Volume Offset (other than the internal AUX) is adjusted
by the VOL knob and [ ] / [ ] keys in 2 steps: -8 ↔0.
(Default value: 0)
• Volume Offset (the internal AUX) is adjusted by the VOL
knob and [ ] / [ ] keys in 3 steps: -8 ↔0 ↔+8. (Default
value: 0)
• Loudness ON/OFF is adjusted by the VOL knob and [ ]
/ [ ] keys in 2 steps: OFF ↔ON. (Default value: OFF)
• Dual Zone ON/OFF is adjusted by the VOL knob and
[] / [ ] keys in 2 steps: OFF ↔ON. (Default value:
OFF)
• Bass f / Bass Q / Bass EXT / Middle f / Middle Q / Treble f
are not displayed in the audio adjustment menu.
• SYSTEM Q (dB EQ) curve selection is not displayed in
the audio adjustment menu.
●MENU
• Press [MENU] key briefly to enter the MENU.
• Press the remote control [DNPP/SBF] key and the
[DIRECT] key to enter the MENU.
• Continuous forwarding by remote control is prohibited.
• Only in the test mode, make the USB source MENU show
the F/W Version check item and make the F/W Version be
shown as the initial items in the test mode.
●
Dual Zone (Dual Zone specification supporting
model)
• If the [AUTO] or [TI] keys is pressed briefly while in a
source other than STANDBY, Dual Zone is switched
between ON / OFF.
●Backup current measurement
If reset while in Acc OFF (Back Up ON) condition, MUTE
terminal goes off 2 seconds later, rather than 15 seconds.
(During this time, the CD mechanism does not function.)
●Special displays while all lights are on
When all lights are on with STANDBY source, if the
following keys are pressed, the following messages are
displayed.
[1]
key
Key pressed briefly: Version is displayed (forwarding)
(Display) TYPE : xx_ _ _ →632K–1.02 → All lights are on →
(“xx” is displayed in hexadecimals.) [“Development
name” – “version”]
∗TYPE indicates µ-com destination, and shows real-time
condition of the destination terminal.
[2]
key
Key pressed briefly: Serial No. is displayed (8 digits)
(Display) xxxxxxxx
[3]
key
Key pressed briefly: Power ON time is displayed.
Press and hold: To clear Power ON time (Press and hold for
2 seconds while the Power ON time is displayed.)
(Display) PON_0Hxx (00~50 is displayed for “xx”. When less
than 1 hour, display by increment of 10 minutes.)
xxxxx (00001~10922 is displayed for “xxxxx”)
MAX 10922 (hours)
[4]
key
Key pressed briefly: CD operation time displayed.
Press and hold: To clear CD operation time (Press and hold
for 2 seconds while the CD operation time is displayed.)
(Display) CDT_0Hxx (00~50 is displayed for “xx”. When less
than 1 hour, display by increment of 10 minutes.)
xxxxx (00001~10922 is displayed for “xxxxx”)
MAX 10922 (hours)
TEST MODE

11
KDC-MP4036U/MP435U/X491/W4537UA/W4537UAY
/W4537UG/W4537UGY/W4737U/W4737UY
[5]
key
Key pressed briefly: Number of CD EJECT times is
displayed.
Press and hold: To clear CD EJECT times (Press and hold
for 2 seconds while the CD EJECT time is displayed.)
(Display) EJCxxxxx MAX 65535 (times)
[6]
key
[FM]
key
Key pressed briefly: ROM correction version is displayed.
When E2PROM is not installed: ERR_
When not written in: R – – – – _ _ _
(Display) R1234 _ _ _ When data not matching: R∗∗∗∗_ _ _
[]
key
Key pressed briefly: AUDIO data initialization
(Display) AUD_INIT
[ ]
key
Key pressed briefly: Forced Power OFF data displayed.
Press and hold: To clear the forced power OFF information.
(Press and hold for 2 seconds while the forced power OFF
data is displayed.)
(Display) POFF _ – – – (No Forced Power OFF)
SEC (Forced Power OFF because of
missing Security Code)
PNL (Forced Power OFF because
of system µ-com and panel
communication error)
[AUD]
key
Key pressed briefly: iPod authentication IC installation status
display (iPod 2Wire supporting model)
(Display) iPOD_OK_ (Installation status OK)
NG (Installation status NG)
[ ]
key
Key pressed briefly: CD information display mode ON
∗Please refer to the next table.
●CD information display mode
I2C communication condition display
(Display) I2C_OK_ _
NG
CD mechanism error log display [switched by [ ] / [ ] keys]
(Display) MCERR1: xx ↔MCERR2: xx ↔MCERR3: xx ↔
MCERR1: xx ↔
(“– –” or an error code is displayed for “xx”.)
[AM]
key
↑
CD loading error log display [switched by [ ] / [ ] keys]
(Display) LDERR1: xx ↔LDERR2: xx ↔LDERR1: xx ↔
MAX 99 (times)
(Number of times is displayed for “xx”.)
CD ejection error log display [switched by [ ] / [ ] keys]
(Display) EJERR1: xx ↔EJERR2: xx ↔EJERR3: xx ↔
EJERR4: xx ↔EJERR1: xx ↔
MAX 99 (times)
(Number of times is displayed for “xx”.)
↓
[FM]
key
CD time code error count data display (missing counts)
[switched by [ ] / [ ] keys]
(Display) CNT_LOSE ↔CDDA_ _xx ↔CDROM_xx ↔
CNT_LOSE ↔
MAX 99 (times)
(Number of times is displayed for “xx”.)
CD time code error count data display (count not updated)
[switched by [ ] / [ ] keys]
(Display) CNT_STAY ↔CDDA_ _xx ↔CDROM_xx ↔
CNT_STAY ↔
MAX 99 (times)
(Number of times is displayed for “xx”.)
[]
key
Key pressed briefly: CD information display mode OFF
Press and hold: To clear entire CD information (Press and
hold for 2 seconds)
●Initializing AUDIO-related setting value
Press the [ ] key briefly in the STANDBY source and
reset the AUDIO setting value to the test mode default
value.
●Fluorescent tube short-checking
Change the process in the following order by pressing
[ATT] key briefly while in STANDBY source.
1. All lights off.
2. Every 125msec, light the odd and even number terminals
of the grid with the largest numbers.
3. Lights only odd number terminals.
4. Lights only even number terminals.
5. All lights on.
∗After the step 5 above, return to the step 1 and repeat
thereafter.
●Other
• When Power ON, do not display “CODE_NG”,
“CODE_OFF”, and “CODE_ON”.
• When the source is STANDBY, press [AUTO] or [TI]
keys briefly to switch key illumination between GREEN
and RED (GREEN ↔RED). (in the model with ILLUMI
switching function)
• When the source is STANDBY, press and hold the [AUTO]
or [TI] keys for 1 second to switch the PREOUT between
Rear and Sub Woofer (Rear ↔Sub Woofer). (1PREOUT
& 2PREOUT model)
• When started in the test mode, duration of prohibiting
LINE MUTE shall be changed from 10 seconds to 1
second.
• When in the test mode, do not write security code by
security jig.
TEST MODE

12
KDC-MP4036U/MP435U/X491/W4537UA/W4537UAY
/W4537UG/W4537UGY/W4737U/W4737UY
• When in the test mode, serial number is not written with a
serial-number-writing jig.
• When in the test mode, when DC offset error detection
is run, the detection information is not written into the
E2PROM.
• When in the test mode, even if the specified time has
passed, back-up memory items are not written into
E2PROM.
• DEMO mode shall not be operated while in the test mode,
CD Mechanism Information & Service Information & DC
Offset Error Detection Information Clear Mode, or DC
Offset Error Detection Information Clear Mode.
• Also, do not display DEMO ON/OFF option items in the
MENU in STANDBY source in the above modes.
●Clearing CD mechanism information & service
information & DC offset error detection informa-
tion (Clearing E2PROM data)
1. While pressing and holding the [MENU] and [ATT]
keys, reset-start to start initializing the CD mechanism
information, service information and DC error detection
information.
(While “– – – –” is being displayed, power can be ON for
30 minutes.)
[CD mechanism information]
• Displays I2C communication condition
• Displays CD mechanism error log
• Displays CD loading error data.
• Displays CD ejection error data.
• Displays CD time code error count data (missing count).
• Displays CD time code error count data (count not
updated).
[Service Information]
• Displays power ON time is displayed.
• Displays CD operation time.
• Displays number of CD EJECT times.
• Displays number of times panel was opened/closed.
• Displays forced Power OFF data.
[DC offset error detection information]
• DC offset error detection display 1
• DC offset error detection display 2
2. After the initialization process is completed, the following
is displayed.
When successfully completed: “CD_O_ _ _”
When finished but unsuccessful: “CD_X_ _ _”
3. This mode is cancelled by resetting. (The last screen will
not be retained.)
(Note) In this mode, the DC offset error detection display,
“PROTECT” is not shown.
●
Clearing DC offset error detection information
(E2PROM data clearing)
1. Press and hold [3] and [6] keys and reset-start to go into
the DC offset error display mode.
(While “– – – –” is being displayed, power can be ON for
30 minutes.)
2. While in STANDBY source, the current overall DC offset
error detection condition is displayed.
When not detected: “DC_ _OK_ _” : None of capacitor
leak, improper connection, etc. has been detected.
When detected: “DC_ _ERR_” : Any one of capacitor leak,
improper connection, etc. has been detected.
3. Use the following procedure to check the details of DC
offset error detection information.
[1]
key
Key pressed briefly: DC offset error detection display 1 (To
show such detection as the improper connection and other
detection)
Key pressed and held for 2 seconds: Clear the information
that indicated if there was such an error as improper
connection and other error.
(Display) DC1_OK_ _ (No error was detected)
ERR_ (Improper connection or other error is
detected.)
[2]
key
Key pressed briefly: DC offset error detection display 2 (To
show the number of capacitor leaks.)
Key pressed and held for 2 seconds: Clear the information
that indicates the detected number of capacitor leaks.
(Display) DC2_0_ _ _ (No error was detected )
1 (Leak was detected once.)
2 (Leak was detected 2 times.)
3 (Leak was detected 3 times.)
4 (Leak was detected 4 times or more.)
4. DC offset error display mode is cancelled by resetting. (The
last screen will not be retained.)
(Note) In this mode, the DC offset error detection display
“PROTECT” is not shown.
●FM/AM channel space switching (KDC-MP4036U/
MP435U/X491 only)
While power is OFF, press and hold [1] and [5] keys, and
press [SRC] key to power ON.
●Security
• How to enter the forced POWER ON mode
While “_ _ _ _” is being displayed, while simultaneously
pressing [MENU] key and [4] key, press [RESET] button,
With this, it is possible to turn the power on for 30 minutes
only.
TEST MODE

13
KDC-MP4036U/MP435U/X491/W4537UA/W4537UAY
/W4537UG/W4537UGY/W4737U/W4737UY
• How to register the security code on the “Car
Audio Passport” sheet after replacing E2PROM
(in the front-end: A500 of X34-) (KDC-MP4036U/
W4537Uxx/W4737Ux only)
1. Enter the test mode. (Refer to “How to enter the test
mode”.)
2. In the test mode, press [MENU] key briefly to enter the
MENU mode.
When “CODE_SET” is displayed, press [ ] key for 1
second or longer to enter the security registration mode.
3. Input the security code, using [FM] / [AM] / [ ] / [ ]
keys.
[FM] key : number up / [AM] key : number down
[ ] key : cursor to right / [ ] key : cursor to left
4. After inputting the code, press [ ] key for 3 seconds or
longer which causes “RE-ENTER” to be displayed. This is
for “confirming” the code. Use the method in the step 3 to
re-enter the code.
5. Then, press [ ] key for 3 seconds or longer, which will
display “APPROVED”. This completes the security code
registration.
6. Release the test mode. (Refer to “How to clear the test
mode”.)
* Note: All clear cannot be used to clear the security code.
• How to clear the programmable security code
(KDC-MP435U/X491 only)
1. While “_ _ _ _” is being displayed, press [ ] key for 3
seconds or longer while pressing the [AUTO] or [TI] keys.
(This makes the “_ _ _ _” display disappear.)
2. Input “KCAR”, using the remote controller.
Press [5] key of the remote controller 2 times (Input for “K”)
and press [ ] key.
Press [2] key of the remote controller 3 times (Input for “C”)
and press [ ] key.
Press [2] key of the remote controller once (Input for “A”)
and press [ ] key.
Press [7] key of the remote controller 2 times (Input for “R”)
and press [ ] key.
3. The security is cleared and the unit enters STANDBY
source.
4. If wrong codes are input, “_ _ _ _” will be displayed again.
TEST MODE

14
KDC-MP4036U/MP435U/X491/W4537UA/W4537UAY
/W4537UG/W4537UGY/W4737U/W4737UY
●Purpose
Prevent customer’s vehicle speakers damages, burnouts,
and smoking.
Avoid the connected speakers to be burned out,
damaged, or to smoke when DC occurs between the
audio power amp. + and - outputs.
●Processing after detection
• System status
• At the detection of DC error, error data is to be saved
immediately (E2PROM error log save area).
• Display the error message on the display. The system
shall maintain the current condition, including the
operation. Shut down audio system power supply. Set
Mute to ON.
• Although switching between Power OFF and ON (ACC,
BU, and Key operation) is valid, switching from Off to ON
shall be error until the µ-com is reset.
∗
While power-on, even if the IC2VI DCErr output terminal
logic recovered to normal level value, the error condition
shall continue.
• Prohibit to save the backup/installer memory to E2PROM
(nonvolatile memory).
• Controlling µ-com terminal
• Set Mute for all channels including for pre-out.
• Turn off power IC control system power supply. (Set AMP-
Standby function to valid)
• Set P-Con output to OFF (Logic by which external AMP
unit is turned off).
∗
The purpose is to shut down audio output. Basically, the
logic sets the audio output system signal line when in
Standby source.
DC OFFSET ERROR
• Key specification
• Other keys than eject and power keys are invalid.
• Display specification
• Display the “PROTECT” string and blink all characters at
1Hz.
∗
Use the indication below with the highest priority (error
message), and maintain the error message even when
the source is changed.
Display example
PROTECT
Blink
alternately
at 1Hz
●Cancel Condition
• Press the Reset terminal on the main body. Or set Backup
to OFF (Unplug and plug back in the DC connector).
The history is maintained (E2PROM data is saved).
• If DC error is detected during the capacitor leak detection
period, the clearing the error by the reset is limited to 4
times.
The startup is inhibited for the 5th time and later reset.
("PROTECT" display has to be blinked.)
●Note while in the test mode
• While in the test mode, even if DC leak is detected, it is
not written into E2PROM.
When an error is detected, the display is enabled.
●Other
• Function for checking and clearing data in E2PROM by a
given key shall be included. (Used at production dpt. and
service center, etc.)
PWIC_STBY
PWIC_MUTE
AUD_MUTE
2.0sec or more 1.5sec or more
0.5s or more
1.0s 1.0s
50ms
or more
AUD_MUTE
(independent H→L→H)
Improper connection
detection period
Capacitor leak
detection period
Other (improper detection etc.)
detection period

15
KDC-MP4036U/MP435U/X491/W4537UA/W4537UAY
/W4537UG/W4537UGY/W4737U/W4737UY
EDCBA
1
2
3
4
5
6
7
J2
S2
ED1
D40
D46
D10
D11
D12
D13
D14
D15
D16
D17
D18
D19
D20
D21
D22
D23
D24
D25
D26
D27
D28
D29
D30
D31
D32
D33
D34
D35
D36
D37 IC3
SWITCH UNIT
X16-389x-xx (J76-0368-12)
VO
W4
MENU
ATT RST 123456
SRC
EJECT
AUTO
66 18
171
14
VCC
G
KI3
KS1
KS2
KS3
KS4
KI1
KI2
KI5
AM- FM+
VOL AUD
J1
D1
D4
D5
D6
D7
D8
D9
Q1
Q2
IC1
SWITCH UNIT
X16-389x-xx (J76-0368-12)
41
1
C12
L1
C5
R15
R17
C2
R20
R21
R22
R23
R24
R25
R26
C3
R9
R10
R30
C4
CP1
W1
W2
R3
R4
R5
R6
R7
R8
R13
R1
BEBE
19
220
40
60
21 20
1
80
61
F- F+
TDF-DET
ILL D GND
LED+B
SW VFL
PAN 5 V
ESD-GND
USB ESD GND
FL+B
RTRAY CCW
RTRAY CW
REMO
RST
VFD-BLK
VFD
PAN
DATA
VFD-CE VFD-CL
VFD
SYS
DATA
USB5V
USB D+
USB-GND
USB D-
PAN 5 V
GREEN
RED
KS1
KS2
KS3
KS4
KI1
KI2
KI3
KI4
KI5
Refer to the schematic diagram for the values of resistors and capacitors.
X16-389x-xx
Ref. No. Address
IC3 6A
PC BOARD
(COMPONENT SIDE VIEW)
X16-389x-xx
Ref. No. Address
IC1 4D
Q1 6D
Q2 6D
(FOIL SIDE VIEW)

16
KDC-MP4036U/MP435U/X491/W4537UA/W4537UAY
/W4537UG/W4537UGY/W4737U/W4737UY
FGHIJ
1
2
3
4
5
6
7
PC BOARD (COMPONENT SIDE VIEW)
R144
W402
W403
C808
C802
L100
76
100
C101
R110
L500
X500
R206
C503
CP107
R146
CP108
R126
CP100
R122
R127
R504
R505
R507
R506
C803 R951
C115
8
54
1
X101
R749
R113
R117
C740
R118
R710
R721
C806
R209
R215
R211
R213
24
R783
R107
X100
C102
R104 R769
4
1
5
8
R725
R722
R724
R723
1
220
119
C722 C714
R740
R750
R720
R754
C903
C702
R140
C703
CP101
1
C104
R163
25
26
R782
R784
R704
R705
R707
R702
81
45
C751
C705
R703
11
10
CP103
X700
40
1
75
C110
51 R147
50 R142
CP105
R149
CP104
C21
R20
R19
C739
X701
R719
R718
20
21
31
30
R624
C300
R637
R614
C608
R636
C614
C611
C612
R626
R628 R629
R631
R630
C606
1576109
3 6
241
1
1
2348121113
C605
C602
C601
R620
R622
R618
R615
R608
R623
C615 R600
R602
R604
R603
R606
C904
C618
R609
R610
C603
C600
C604
C607
R303
C318
C728
C725
C314
C312
C310
C113
C311
C301
17
R713
R711
C720
R714
32
C715
4
1
R806
1
16
R302
C613
C304
C303
64
43
48
R310
C313
C315
33
C317
R304
51
C316
R307
49
R731
R734
R732
C711
C731
5
8
R805
C320
R402
R401
R411
R625
R627
W401
C403
C306
C305
C402
C404
R308
C319
R410
127
226
C400
R400
C420
C406 C405
C421
R405
R406
C414
R31
6
C321
TH400
R407
R403
R404
C
BE
BE
BE BE
BE
B
E
B
E
EB
J600/J602
J200
D219
D220
A500
P1 CN5
Q13
Q14
CN601
CN600
D607
Q605
D616
D615
D614
D613
D602
Q606
Q607
J601
D306
D304
D305
D609
D610
D411
CN2
0
CN2
0
D611
D612
Q300
D408
D409
IC103
IC709
IC710
IC702
IC102
IC704
IC300 IC301
IC400
ELECTRIC UNIT
X34-466x-xx (J76-0370-22)
CNVSS
S-MT
NOISE

17
KDC-MP4036U/MP435U/X491/W4537UA/W4537UAY
/W4537UG/W4537UGY/W4737U/W4737UY
ONMLK
1
2
3
4
5
6
7
4
03
R950
45
C767
L2
CP710
R749
C740
C719
C722
12
CP717
CP716
CP715
R729
13
48
CP700
CP720
C713
C714
R717
1
R740
R750
R754
C746
97
96
CP701
R803
R804
R786
1
CP714
24
25
C768
CP705
CP711
128
1
CP719
CP712
CP718
CP703
W701
/R930
R793
L700
C739
R758
X701
C773
C742
R744
65
64
R768
C737
CP707
CP709
CP708
54
CP713
C762
CP706
CP704
R799
R795
32
33
C15
8
R819
116
R818
R816
R817
9
C726
R771
R774
R772
R776
R778
54
C16
C732
13
C700
1
27
C766 C765
24
C764
C20
C738
C741
C761
28
O
C749
34
51
R18
I
G
7
C19
R17
1
C17
C18
C54
C902
3
C711
R805
L200/
CP730
C207
8
R219
R218
1
C206
C801
R217
R216
R50
R51
916
81
R405
R406
C56
R316
C424
R62
R61
R63 R72
R69
R65
C58
R64
C57
C55
C53
R71
R59
R403
C916
C423
R412
R404
C422
R68
C918
R2
R1
L1
R8
C11
C8
C10
C7
R5
C3
C9
C5
R9
C4
C2
C1
GIO
R4
BE
BE
BE
BE
BE
BE
BE
BEBEBEBE
EB
BE
BE
BE
BE
D1
D57
Q59
CN202
D220 D219
WH1
Q21
CN201
Q20
Q51
Q60
D52
D58
D53
D55 Q57
D408
J1
0
9
Q5
Q18
Q8
Q10
Q11 Q17 Q6
Q3
Q7
D5
Q1
IC711
IC703
IC700
IC705
IC715
IC714
IC708
IC716
IC1
IC200
IC2
TP200
Refer to the schematic diagram for the values of resistors and capacitors.
X34-466x-xx
Ref. No. Address
IC1
IC2
IC102
IC103
IC200
IC300
IC301
IC400
IC700
IC702
IC703
IC704
IC705
IC708
IC709
IC710
IC711
IC714
IC715
IC716
Q1
Q3
Q5
Q6
Q7
Q8
Q10
Q11
Q13
Q14
Q17
Q18
Q20
Q21
Q51
Q57
Q59
Q60
Q300
Q605
Q606
Q607
5M
2M
5I
4H
4K
3I
3J
2J
4K
5J
6K
4J
5K
5M
6I
5I
5K
5L
6L
5L
2M
3M
3M
3M
3M
4M
3M
3M
4I
4J
3M
4M
3K
3K
3K
3L
3K
2K
3J
3H
3H
3H

18
KDC-MP4036U/MP435U/X491/W4537UA/W4537UAY
/W4537UG/W4537UGY/W4737U/W4737UY
PQRST
1
2
3
4
5
6
7
PC BOARD (FOIL SIDE VIEW)
C109
R763
R145
R143
C925
C921
R798
R317
C901
C805
C763
R962
R224
R16
C22
R14
R15
R960 R961
C736
C204
C745
C747
R756
R755
R706
R712
R787
C755
R797
R792
R802
C760
R801
R796
R794
R773
R764
R789
R791
R807
R821
R820
R762
R742
R741
R739
R738
R753
R761
R800
R745
C743
R779
R813
C754
C758
C759
C757
R811
R808
R812
R815 R790
R781
R770
C750
R743
C753
C752
C744
R814
R765
R788
R767
R736
R766
R777
R810
R809 R775
R735
R748
R759
R760
R824
R746
R747
R709
C756
1
14
C723
W900
C920
R70
R13
C14
R10
C12
R11
R12
R25
C52
R6
R3
C930
C6
R54
R56
R60
R52
R220
C50
R57
C769
R312
R315
R313
R311
R309
C413
C412
R67
R66
W2
C917
C915 C913
C911
R314
C914
C912
R112
C108
R132
R135
R125
R133
7
R138
8
R128
R139
R137
R165
C107
R151
R148
R134
R154
C114
R155
C922
C923 C926
C919
R300
C302
R301
W300
R306
C307
C308
W405
R911
R915
R305
R914
R916
R913
C924
W404
BE
BE
BE
BE
BE
BE
BE
BE
BE
BE
E
EB
BE
B
BE
BE
BE
D700
D9
Q706
Q704
D213 Q52
D7
Q12
Q9
D6
Q16
D3
Q4
D2 Q2
D50
Q56 Q58
Q50
Q54
D308
D309
D51
D61
D60
Q53
D59
Q15 Q301
D307
D608
Q302
D300
D301
IC712
ELECTRIC UNIT
X34-466x-xx (J76-0370-22)

19
KDC-MP4036U/MP435U/X491/W4537UA/W4537UAY
/W4537UG/W4537UGY/W4737U/W4737UY
YXWVU
1
2
3
4
5
6
7
C
109
C807
R207
R214
R211
R208
R209
C103
R201
W501
R512
R511
R510
R509
R136
R112
R111
R103
R101
R121
R102
C100
C510
R116
R115
C509
R105
C
108
R
139
R
137
165
107
R
151
R154
C
114
R141
C105
21
R161
R159
34
R124
R123
R100
R153
C106
R155
R158
R162
R160
R157
R131
R152
R164
58
C512
C501
18
C500
16
R502
9
C502
C507 C506 C505
C307
41
W405
R911
C617
R635
R632
R633
C620
R616
R619
C609
C504
R503
R508
R617
C906
R613
R612
C610
C619
C905
R634
R611
R607
R605
R601
R621
BE
BE
BE
BE BE BE BE
BE
D200
Q500
Q200
D608
D301
D620
D621
D619
Q501
Q604
Q601
Q602
Q603
Q600
IC100
IC101
IC500
Refer to the schematic diagram for the values of resistors and capacitors.
X34-466x-xx
Ref. No. Address
IC100
IC500
IC712
Q2
Q4
Q9
Q12
Q15
Q16
Q50
Q52
Q53
Q54
Q56
Q58
Q200
Q301
Q302
Q500
Q501
Q600
Q601
Q602
Q603
Q604
Q704
Q706
5U
6V
5T
2Q
2Q
4Q
3Q
4T
2Q
3R
3R
3S
3R
3R
3R
6V
3T
3T
4V
4V
3V
3V
3V
3V
3V
6S
6S

20
KDC-MP4036U/MP435U/X491/W4537UA/W4537UAY
/W4537UG/W4537UGY/W4737U/W4737UY
ZAA AB AC AD
1
2
3
4
5
6
7
PC BOARD (COMPONENT SIDE VIEW)
R41
R15
R16
R89
C77 R112
CP2
C84
C82
C81
X2
CP4
C3
R28 R27
R24
CP1
GSD
SDG
EBC CEB
BEBE
EB
S1
S2
S3
S4
Q6
D2
Q8
Q9
Q3
Q4
D1
CD PLAYER UNIT X32-5980-02 (J76-0377-02)
Refer to the schematic diagram for the values of resistors and capacitors.
X32-5980-02
Ref. No. Address
Q3
Q6
Q8
Q9
4AA
2AA
2AA
2AA