IC1Panel microprocessorPanel control microprocessor
IC2ROM ICGraphic ROM
IC4AVRFor 3.3V power supply
IC5AVRFor 2.5V power supply
IC6Buffer ICLevel shift buffer IC (5V→3.3V)
IC7Buffer ICLevel shift buffer IC (3.3V→5V)
IC8Remote control ICFor Remote control sensor
IC9Logic ICControl for FL contrast
IC10Analog ICSpectrum analyzer IC
Q13.3V RegulatorWhile PAN5V is applied when 3.3V regulator output is +3.3V
Q22.5V RegulatorWhile PAN5V is applied when 2.5V regulator output is +2.5V
Q3,4FL +B SWFL +B (VDD1) is turned on when Q3 base level goes H
Q53.3V SWSW3.3V is turned on when Q5 base level goes L
Q6,200FL 3.3V SWFL +3.3V (VDD1) is turned on when Q200 base level goes H
Q7,8Remote control ON SWThe power supply of IC8, 10 is turned on when Q10 base level goes H
Q9FL BLK SWVFD is turned on when Q9 base level goes H
Q11Red LED SWRed LED is turned on when Q11 base level goes H
Q1DSI LED SWDSI LED blinks when Q1 base level goes H/L
Q2KEY Illumination SW (Green)KEY Illumination SW “ON” when the Q2 base level goes H
Q3KEY Illumination SW (Red)KEY Illumination SW “ON” when the Q3 base level goes H
Q4KEY Illumination SW (Blue)KEY Illumination SW “ON” when the Q4 base level goes H
IC1Mechanism control microprocessorIC2DSPCD signal processor, RF amp, Servo control
IC3Decoder ICMP3/WMA decoder
IC4BTL driverFocus, Tracking coil, Feed and Spindle motor driver IC
IC5AVRSW3.3V AVR
IC6AVRBU3.3V AVR
IC7AVRBU2.5V AVR
IC8Selector ICSerial audio data selector
IC1System control ICSystem control microprocessor
IC2E-VOL & tuner ICE-VOL. FM/AM tuner & stereo decoder
IC3Power supply ICFor A8V AVR
IC4Audio power ICAudio power amplifier
IC5System ICFor System E’s control
IC6Audio control ICFor WOW/FOCUS control
IC7Power supply IC-9V AVR (For 4.5V Pre-out)
IC8Reset ICWhen BU5V line voltage is less than 3.5V, this IC output line is “L”
IC9Muting logic ICControl for MUTE, P-ANT & RESET muting
IC10Buffer ICFor spectrum analyzer
IC11~13OP AMPFor 4.5V Pre-out
IC14RDS decoderDecode for RDS signal
IC15,16Motor driverControl for Panel mechanism motor
IC18P-CON ICPower control IC
IC19Power supply ICSwitching regulator IC for CD4.7V
IC20Analog SWControl for WOW/FOCUS IC (IC4)
Q1,2BU 5V AVRWhile BU is applied when BU5V regulator output is +5V
Q3,601SW5V AVRWhen Q601base level goes H, SW5V regulator output is +5V
Q4,5SW14V AVRWhen Q5 base level goes H, SW14V regulator output is +14V
Q6~8Audio 8V AVRWhen Q6 base level goes H, A8V regulator output is +8.3V
Q9,602Servo +B AVRWhen Q602 base level goes H, S+B regulator output is +7.5V
Q11~14Illumination & DC/DC +B AVRWhen Q11 base level goes H, AVR output is +9.2V
Q15,16Audio 10.5V AVRWhen Q16 base level goes H, AVR output is +10.5V
Q17~19Pre Amp & -9V AVR
Q20~22Pre Amp & +9V AVR
Q23,24P-ANT SWWhen Q23 base level goes H, P-ANT SW output is +14V
Q25BufferEX amp control buffer
Q26Small lamp det. SWWhen Q26 base level goes H, Q26 turned ON
Q18,19 work as differential amplifier, Q17 wark as driver and -9.1V is supplied to
OP AMP for Pre-out
Q20,22 work as differential amplifier, Q21 wark as driver and +9.4V is supplied to
OP AMP for Pre-out
Q27BU detectorWhen Q27 base level goes H, Q27 turned ON
Q29ACC detectorWhen Q29 base level goes H, Q29 turned ON
Q30,31Muting driverWhen base level goes L, muting driver is turned ON
Q201BufferNoise detect buffer amp
Q202E-VOL muting SWWhen Q202 base level goes H, muting SW is turned ON
Q203~208
Q210AGCFor AGC for spectrum analyzer
Q303,304AM +B SWWhen Q303 base level goes H, AM +B is out to tuner unit
Q305BufferComposite signal buffer for RDS
Q501E2P 5V SWWhen Q501 base level goes L, E2P 5V is out for E2PROM
Q502,503Panel 5V SWWhen Q503 base level goes H, Panel 5V is out
Q603SWWhen Q603 base level goes H, Q603 is turned ON
Pre-out muting SWWhen base level goes H, Pre-output is muted
MICROCOMPUTER’S TERMINAL DESCRIPTION
● SYSTEM MICROPROCESSOR : UPD703030GC041 (X34-303 : IC1)
1PLL DATAI/O Data input/output terminal for Tuner front-end
2AM+BI/O AM+B (AM operation : H)
3(FM+B)OFM+B (FM operation : H, Last FM : H with RDS, RBDS model)
4PAN E2P DATAI/O Variable illumination D/A converter, E2PROM DATA terminal
5PAN E2P CLKI/O Variable illumination D/A converter, E2PROM CLK terminal
6EVDD-VDD 5V
7EVSS-GND
8AFSOTime constant switching for noise detection (FM seek, AF search, AUTO 0 : L, Receiving : H)
9BEEPOBEEP audio output terminal
10REMOIRemote control input terminal
11P MUTEOAudio power IC muting control terminal (POWER OFF, ALL OFF, TEL MUTE : L)
12SVROAudio power IC SVR discharge circuit control terminal
13IC2 SDAI/O CD mechanism, IC2, IC5, ROM correction DATA line
14IC2 CLKI/O CD mechanism, IC2, IC5, ROM correction CLOCK line
15P STBYOAudio power IC Stand-by terminal (POWER IC ON, ALL OFF : H, POWER IC OFF : L)
16P CONI/O Power control terminal (POWER ON : H, POWER OFF, ALL OFF : Hi-Z)
17WOW MODE2OWOW control terminal1
62MOSWOCD mechanism motor driver SW (LOADING, EJECT, Brake : H)
63FPM MOTOR BOFPM mechanism (Slider) control terminal2
64FPM MOTOR FOFPM mechanism (Slider) control terminal2
65FPM MOTOR OOFPM mechanism (Angle) control terminal2
66FPM MOTOR COFPM mechanism (Angle) control terminal2
67O DATAI/O External display DATA terminal2
68O CLKI/O External display CLK terminal
69O CEI/O External display chip enable terminal
70M MUTERIMute request from CD mechanism (Rch ON : L)
71AVDD-AVR 5V
72AVSS-GND
73AVREFIConnect to P-ON (29PIN)
74M MUTELIMute request from CD mechanism (Lch ON : L)
75PAN DETIPANEL, E2PROM detection terminal (With panel : L, Without : H)
76PHONEIPHONE detection terminal (TEL MUTE : 1V or less, NAVI MUTE : 2.5V or more)
77FPM SW4I
78FPM SW1IFPM mechanism position detect terminal2
79FPM SW2IFPM mechanism position detect terminal2
80FPM SW3IFPM mechanism position detect terminal2
81FPM PHOUTIFPM mechanism position detect terminal (2.2V or more : H)2
82S METERIS meter detection terminal
83NOISEIFM noise detection terminal
84IFC OUTIFront end IFC OUT input terminal (Receiving station : 2.5V or more)
85POWER DETIAudio power IC DC offset detection
86CD SW4I8cmDISC detection terminal (8cmDISC : L)
87R CLKIRDS decoder clock input terminal
88LX REQ SIReceive request from external slave unit (Request : L)
89SC REQICommunication request from panel microprocessor
90CD SW1ILOADING SW detection terminal (LOADING start, POWER OFF : L)
91CD SW2I12cmDISC detection terminal (12cmDISC, POWER OFF : L)
92R QUALIRDS decoder QUAL input terminal
93R DATAIRDS decoder DATA input terminal
94LX DATA SIData input from external slave unit
95LX DATA MOData output to external slave unit
96LX CLKI/O Clock input/ output with external slave unit
97PAN RXIData input from panel microprocessor
98PAN TXOData output to panel microprocessor
99WOW MODE1OWOW control terminal
100PLL CLKI/O Clock input/ output to Tuner front-end1
FPM mechanism position detect/ CD Mechanism detection terminal
(3.75V or more : No mechanism, 1.25V or more : H, Less than 1.25V : L)
Fig
2
7
Page 8
KDC-MP925/W8027
MICROCOMPUTER’S TERMINAL DESCRIPTION
Fig.1 WOW mode operation
MODEWOW MODE1 WOW MODE2 WOW MODE3FOCUS
BYPASSLLLDon’t care
TuBassLHLDon’t care
3D-STEREOLLHDon’t care
FOCUS LOWHLLL (Hi-Z)
FOCUS HIHLLH
WOW LOWHHHL (Hi-Z)
WOW HIHHHH
87FL LATCHOLatch output to FL driver IC
88,89NC-NC
90REMO ONOPower supply control for remote control IC (H : ON, Hi-Z : OFF)
91FL3.3V SWOFL3.3V control terminal (H : ON, Hi-Z : OFF)
92FL+B SWOFL+B control terminal (H : ON, Hi-Z : OFF)
933.3V SWO3.3V control terminal (L : ON, Hi-Z : OFF)
94NC-NC
95OEOOE control for Flash ROM (L : DATA transmission, Hi-Z : Wait ready)
96NC-NC
97WE/WROWRITE/READ control for Flash ROM (L : Writing, Hi-Z : Wait ready)
983.3V VDD-AVR 3.3V
99EVSS-GND
100CE ROMOCE control for ROM (L : DATA transmission, Hi-Z : Wait ready)
101CE F/ROMOCE control for Flash ROM (L : DATA transmission, Hi-Z : Wait ready)
102
103,104NC-NC
105GREEN LEDOSelect for illumination (GREEN H : ON, L : OFF)
106RED LEDOSelect for illumination (RED H : ON, L : OFF)
107DISP LEDODISP LED control (Normal H: ON, L : OFF)
108BLACK DISPOLight up to DISP LED (H : ON, L : OFF)
109,110NC-NC
111SA RSTOReset for spectrum analyzer (H : Reset, L : Normal)
1123.3V VDD-AVR 3.3V
113EVSS-GND
114~117
118~123
1242.5V VDD-AVR 2.5V
125VSS-GND
126~133
1343.3V VDD-AVR 3.3V
135EVSS-GND
136~143
144D15I/O External ROM data input/output terminal
FLASHROM CHECK
NC-NC
A21~A16OAddress bus
A15~A8OAddress bus
A7~A0OAddress bus
OWriting condition check for Flash ROM (H : OK, L : NG)
10
Page 11
TEST MODE
KDC-MP925/W8027
● How to enter the test mode
While pressing and holding the Preset 1 and Preset 3 keys,
reset the unit.
● How to exit from the test mode
While holding the Preset 6 key, reset the unit.
Note : Turning ACC off, po wer off, momentary power down
or panel detaching does not terminate the test mode.
● Initial status in the test mode
• Sources : ALL OFF
• Display : All segments are lit.
•Volume : -10dB (displayed as “30”)
• Loudness : OFF
• CRSC : OFF regardless of the presence of switching function.
• SYSTEM Q : Flat
•WOW : All OFF
• BEEP : When pressing any keys, the buzzer generates a
beep at any time.
When any of the following messages is displayed in Tuner
mode, the F/E may be abnormal.
• “TNE2P NG” : The EEPROM is set to the default (unstable
values) because the F/E was shipped without passing
through the adjustment process, etc.
• “TNCON NG” : Comm unication with the F/E is not possible.
● Forced switching of K3I
Each press of the Preset 6 key in Tuner mode should switch
K3I from AUTO→Forced Wide→Forced Middle→Forced
Narrow→AUTO.
The initial status is AUTO and the display shows these
modes as follows.
•AUTO : FMA
•Forced Wide : FMW
•Forced Middle : FMM
•Forced Narrow : FMN
● Test mode specifications of the CD receiver
•Forced ejection is inhibited in the reset start operation. When
the unit is reset while a CD is loaded in it, resetting does
not recognize the CD.
• Each press of the Track Up key jumps to the following track
numbers :
No. 9→No. 15→No. 10→No. 11→No. 12→No. 13→No. 22
→No. 14→No. 9 (The cycle restarts from here.)
• Each press of the Track Down key jumps to the previous
track number to the track being played.
•When the number of total trucks of the MP3 disc or the
WMA disc is less than 9, 1st truck is played.
• When the disc media is CD, A short press of the Preset 1
key jumps to the track number 28.
• When the model is equipped the CD mechanism assembly
adapted for MP3 or MP3/WMA disc, the mechanism name
and version number are displayed during the FL model is
lower stand and Display mode of LCD model is DNPS.
● Audio-related specifications
• Pressing the ✽ key on the remote initiates the audio adjustment mode.
• BL/F key on the Fader initials.
• Continuous holding of a remote control key is inhibited, and
workings are short press of any keys.
• Bass, Middle and Treble are adjusted in 3 steps of -8 / 0 /+8
with the Track Up/Down keys (Default value at 0).
• Balance is adjusted in 3 steps of L15 / 0 / R15 with the
Track Up/Down keys (Default value at 0).
•Fader is adjusted in 3 steps of R15 / 0 / F15 with the Track
Up/Down keys (Default value at 0).
• HPF is adjusted in 2 steps of OFF / 170Hz (or 200Hz) with
the Track Up/Down keys (Default value at OFF).
• LPF is adjusted in 2 steps of OFF / 120Hz with the Track
Up/Down keys (Default value at OFF).
• Bass f, Bass Q, Bass EXT, Middle f, Middle Q and Treble f
are not dealt with by the audio adjust.
•The WOW key passes during the audio adjustment as following steps (WOW model only).
OrderedTruBassFOCUSSRS Display
1OFFOFFOFFSRS WOW OFF
2ONOFFOFFSRS TruBass ON
3OFFLOWOFFFOCUS LOW
4OFFHIGHOFF FOCUS HIGH
5OFF OFFON SRS ON
6ONHIGHONSRS WOW HIGH
11
Page 12
KDC-MP925/W8027
TEST MODE
● Menu-related specifications
• A short press of the Q key initiates the menu mode.
• Pressing the DNPP key on the remote initiates the Menu
mode.
• Continuous holding of a remote control key is inhibited, and
workings are short press of any keys.
• Contrast is adjusted in 3 steps of 0 / 5 / 10 with the Track
Up/Down keys (Default value at 5).
● Backup current measurement
When the unit is reset while ACC is OFF (i.e. by turning
Backup ON), the MUTE terminal goes OFF in 2 seconds in
place of 15 second. (The CD mechanism is not activated at
this time.)
● Special display when the display is all on
Pressing the Preset keys while the power is ALL OFF displays the following information.
[PRESET 1]
[PRESET 2]
[PRESET 3]
[PRESET 4]
[PRESET 5]
[PRESET 6]
FM keyDisplay ROM collection version.
Version display (8 digits, Month/Day/Hour/Minute)
(Display) SYS xxxxxxxx :
PAN xxxxxxxx : FL model only
MEM
xxxxxxxx :
Serial number display (8 digits)
(Display) SNo xxxxxxxx
Short press : View power ON time. (The All OFF
period is not counted.)
2 seconds long press/hold : Clear power ON time
at the power ON time displaying.
(Display) PonTim xxxxxMax. 60000 (hours)
Short press : Display CD operation time.
2 seconds long press/hold : Clear CD operation
time at the CD operation time displaying.
(Display) CDTim xxxxxMax. 60000 (hours)
Short press : Display CD ejection count.
2 seconds long press/hold : Clear CD ejection
count at the CD ejection count displaying.
(Display) EjeCnt xxxxxMax. 60000 (times)
Short press : Display Panel open/close count.
2 seconds long press/hold : Clear Panel open/close
count at the Panel open/close count.
(Display) PnCnt xxxxxxMax. 600000 (times)
(Display) ROM R xxxInvalid : “R – – –”
4 contrasts FL model only
AM keyDisplay panel E2PROM condition.
(Display) P–ROM OK (Registered code)
P–ROM NG (Code is write in error)
P–ROM WAIT (Unregistered code)
P-ROM NON
(Panel security nonfunctional)
● Panel mechanism
• Auto-panel close inhibition when set-in the CD.
• The panel operation inhibition at power ON/OFF and ACC
ON/OFF.
• The panel position changing Eject→Last with a short press
of the PLAY/PAUSE keys.
● Other specifications
• No displays such as “CODE OFF/ON” during Power-ON.
• The LINE MUTE inhibition time is one second from 10 seconds when start-up the test mode.
• Do not write the security code with the security jig on the
test mode.
•Do not wr ite the serial with the serial writing jig on the test
mode.
• OEM display output is not stop if OEM displa y not connection on the test mode.
● Switching the frequency span (K/M type)
While holding the Preset 1 key and Preset 5 key, reset the
unit.
● Demonstration mode
1. How to enter to the Demonstration mode
1. Hold down the [Q] key and [TI (AME)] k ey button when the
power is on and press the Reset button.
2. This will enter to the Demonstration mode.
2. How to chancel the Demonstration mode
1. Hold-down the Preset [5] key button when the power is on
and press the Reset button.
2. This will cancel the Demonstration mode.
12
Page 13
TEST MODE
KDC-MP925/W8027
● Security information
1. Forced Power ON mode (All models)
Even when the security (Cord) is approved, resetting the
unit while holding the Q and Preset 4 keys makes it possible to turn the power ON for 30 minutes.
After 30 minutes have elapsed, it is not possib le to return to
the previous condition unless the unit is reset again. (Security code is doing not clear at this mode. Put the power on
fill-in.)
When panel security was set up for the unit when it is can
not power on.
In this case, you can use new ROM for the TDF panel that
the unit can be power on for test mode.
Note : Don’t enter the panel security set up for new ROM
panel. User can not power on the unit.
2. Method of registration of the security code after
EEPROM (F/E) replacement (Code security model)
1. Enter the test mode. (See How to enter the test mode)
2. Press the MENU key to enter the Menu mode.
3. When the message “Security” is displayed, press and hold
the Track Up/Down key for 1 second to enter the security
registration mode.
4. Enter the code using the FM/AM/Track Up/Track Down keys.
FM key : Number up
AM key : Number down
Track Up key : Cursor right shift
Track Down key : Cursor left shift
5. Hold down the Track Up key for at least 3 seconds and the
message, “RE-ENTER” appears, so once again enter the
code according to Step 4 above.
6. Press and hold the Track Up key for 3 seconds until “APPROVED” is displayed.
7. Exit from the test mode. (See 2. How to exit from the test
mode)
Note 1 : All Clear is not applicable to the security code of
this model.
Note 2 : When the F/E changed, need re-inscription because the panel security is clear.
3. How to inscription the panel security code
1. Enter the test mode.
2. Pressing the AM key on all lighting, check the “P-ROM W AIT”
display.
3. The NEXT key is long press 2 seconds, writing the code.
4. Display is “P-ROM OK”.
5. Exit from the test mode.
Note : E2PROM connection is NG when displa y is “P-R OM
NG”, so detach the panel and rewrite after the display is
“PROM WAIT”. This code can not clear.
4. Simple way to c lear the security code (K type only)
1. During code request mode, press the Track UP key for at
least 3 seconds while holding down the AUTO key. (– – – –
will disappear)
2. Enter, “KCAR” with the remote controller as described below.
• Press the remote controller 5 key twice, and press the Track
Up key. (Enters a “K” )
• Press the remote controller 2 key three times, and press
the Track Up key. (Enters a “C” )
• Press the remote controller 2 key once, and press the Track
Up key. (Enters an “A” )
• Press the remote controller 7 key twice, and press the Track
Up key. (Enters an “R” )
3. Security function is canceled and unit sets to All-Off mode.
4. Code request mode appears if a mistake was made in entering the numbers.
13
Page 14
ABCDE
7
KDC-MP925/W8027
1
PC BOARD (COMPONENT SIDE VIEW)
ELECTRIC UNIT X34-3030-10, X34-3032-71 (J74-1473-32)
Refer to the schematic diagram for the values of resistors and capacitors.
R31
D13
D12
R254
R255
R231
R230
R242
R243
9V
58
IC7
14
R25
C
Q19
C37
R23
R26
EB
D5
C22
16
Page 17
TSRQP
D5
Q19
KDC-MP925/W8027
1
R31
D13
D12
R254
R255
R231
R230
R242
R243
C34
V
5
IC7
14
R25
C33
C37
R23
R26
E
20
C22
R28
D10
R41
C46
C35
C32
D217
C17
D11
R37
R38
C296
C15
NGND
NR
C284
R30
R43
R45
D18
R36
Q27
EB
R274
R271
R276
IC10
R278
14
1
C293
C292
EB
R277
NL
C289
C44
R16
C294
FGND
C285
C281
D19
C45
R44
A8V
R4
R3
R270
58
Q210
FL
C282
D204
Q29
Q601
Q3
C21
R272C291
C295
FR
RGND
C287
C280
BE
EB
BE
R273
SW5V
AUXL
RR
RL
AUXG
C283
C288
D203
D2
SERVO+B
R275
AUXR
R13
R265
C286
R15
D6
C14
BE
Q5
BE
EB
Q4
W1
R1
C4
D3
R2
C701
X16-2530-11
Ref. No. Address
IC13R
IC22R
IC46R
IC56R
IC65R
IC75R
IC93S
IC105R
Q16R
Q26R
Q36R
Q46R
Q55R
Q62R
Q76R
Q86S
Q92R
Q116R
Q2002S
Q14
D4
ILL+B
C7
R8
BU5V
R9
Q602
CH+B
CH GND
R5
SW14V
EB
BE
DISPLAY UNIT
X16-2530-11 (J74-1587-02)
Q6
L8
1
4
CP13
109
72
R7
SYSRX
SYSTX
SCREQ
SCCON
MCREQ
PANRST
FLGND
C29
R36
C30
Q3
R300
R43
EB
R203
124
C27
CP9
10873
C11
R6
C7
DSI
RST
ANA
REMO
CP3
D3
R35
R27
EB
Q7
EB
Q10
R204
C13
R12
R10
R50
R9
C12
E2P5V
CP31
C28
EB
R201
EB
R202
C200
120
IC9
58
CP200
CP300
CP10
R11
CP8
L3
E2PDATA
FAC1
FAC2
R3
D1
R34
C31
Q8
R26
R41
Q200
CP19
C15
IC2
CP21
CP22
CP12
IC3
CP24
CP23
CP11
R28
R49
C14
CP30
CP14
Q9
L9
2548
R30
EB
R29
C35
C36
R25
2140
C26
C25
C38
C39
C37
CP17
L10
CP20
CP18
CP15
144
C16
CP16
136
C17 R14
Q2
CP25
IC1
C18
CP26
C10
C9
R8
X1
TEST
E2PCLK
132
28
CN1
1
ILL+B
FL+B
PANDET
D4
R2
CP27
D2
C19
R23
R22
Q5
R21
EB
CP32
1810
IC10
R40
R37
R39
19169
R38
CP1
EB
R19
IC4
45
R24
R20
R18
Q4
EB
R32
C23
R17
R42
R33
L1
CLK
R16
GREEN
RED
KI5
KI4
KI3
KI2
KI1
ESDGND
CP4
IC7
C34
C33
C32
R45
+2.5V
DI
CBC
Q11
C5
L2
R5
VOLB
CP5
14
85
R206
IC5
C4
37
L4
C8
CP7
DO
CN2
KS4
KS3
KS2
KS1
VOLA
R4
CP2
C22
81
R44
R47
R46
BEE
R48
+3 3V
Q2
EB
54
31
R200
L5
L6
L7
DGND
D5
CP28
C20
CP6
IC6
Q1
BE
C2
C1
C21
R1
13
R31
SWITCH UNIT
X16-2560-10 (J74-1590-02)
FROM CHECK
KI3
KI2
PAN5V
R5
C1
ESDGND
C12
R10
R1
R2
C11
DSI
D24
R11
R9
2
3
R8
RST
R3
R4
GREEN
KI4
KI5
RED
KS3
KI1
KS2
PAN5V
VOLB
VOLA
C3
DSI
KS4
124
CN1
ILLGND
DGND
ILL+B
R7R6
S5
KS1
C2
4
5
6
7
17
Page 18
UVWXY
KDC-MP925/W8027
1
PC BOARD (COMPONENT SIDE VIEW)
CD PLAYER UNIT X32-5540-00 (J74-1552-12)
S2
C32
C66
CP11
C25
C67
R38
C50
C29
2
S1
R27
R66
C72
L1
CP6
3
R65
3217
C44
R68
1633
IC3
C27
CP12
C69
R67
C18
C35
RFOK
C46
CP13
48
4
CP14
CP15
C13
R49
C15
C11
5
S4
6
X32-5540-00
R48
C41
MIACK
C10
R47
1
6449
C37
R46
/RESET
R42
Q4
G
D
S
MIDIO
CP5
R69
R13
CP7
Q7
EB
CP3
S3
IC6
C8
R12
C3
1345
R6
CBE
BEC
C52
Q5
CP2
R50
R63
Ref. No. Address
IC34V
IC65W
Q45V
Q55X
Q75W
7
Refer to the schematic diagram for the values of resistors and capacitors.
18
Page 19
ADACABAAZ
KDC-MP925/W8027
PC BOARD (FOIL SIDE VIEW)
CD PLAYER UNIT X32-5540-00 (J74-1552-12)
IOP-
Vref
E
VCC
PD
C28
241
R64
Q8
EB
R36
C+D
Q10
R70
CN1
Q3
15
130
C38
C63
TE
B
FE
R43
EB
SPDL
R61
R58
C57
R45
T
Q9
EB
/CLK
/MUTEL
CP1
FCS
TRK IN
SLED IN
TRK OUT
FCS DOWN
FCS UP
D3.3V
DGND
/EJECT
SLED OUT
/LOAD
SD
MOTOR
SLED
R56
TRK
CN2
C5
R53
16
R9
C7
4
5
R2
/MUTER
8EJE
LOE/LIM
D.GND
D5V
/MUTEL
R60
C58
TD
R57
IC5
DATA
LO/EJ
S.7.5V
S.GND
/MUTER
16
R62
C56
LD
D3
3
1
LOS
1
VR
R35
C6
PON
CEB
IC4
R34
BEC
ARF
F
R40
ADCIN
D.OUT
Lch
Rch
MD
FD
R52
F
R44
R59
RF
IOP+
A
C53
C34
C31
R37
R22
12EJE
A.+8V
A.GND
/MRST
/MSTOP
BU5V
GND
C47
ATEST
C36
100
C30
D2
SPDL+
R5
BU3.3V
C48
75
76
1
C26
C21
R29
SPDL-
R10
/RESET
C54
C51
C49
R51
C24
Q6
C12
SEARCH
LIM-SW
FLAGIN
C55
R54
IC2
C22
L2
C70
R21
BEC
ECB
R55
C23
C17
R24
DAVdd3.3V
C71
IC9
C19
C9
45
31
C4
R1
/MICK
C16
CLK
X2
/STB
A0
INT
T1
T2
T3 T4
CP10
51
50
26
25
R25
1345
BU2.5V
IC7
TXD1
C14
26
/RST
50
/MSTOP
MIRR
R4
R3
R33
R23
25
D
C39
TX
C68
R32
RXD1
Q1
C59
C62
FLAG
LOCK
X1
R31
CP16
R18
C60
C61
C2
C1
C20
IC1
S
G
R39
C42
/MILP
CP4
Vref
HOLD
TZD
FZD
SDIO
LRCKIA
C64
D.GND
C43
/MIRST
RZM
/MICS
CP8
BCKIA
TXO
LZM
1
7551
CP9
SDO
IC8
C33
R17
FOGUP
100
76
R11
/BOOT
13
45
C45
R28
XI
R16
R15
R14
R7
R8
POND3.3
1
2
3
STBY
REQ
4
5
X32-5540-00
Ref. No. Address
IC15AC
IC22AB
IC45AA
IC53AA
IC74AB
IC83AC
Ref. No. Address
Q15AC
Q35AA
Q65AB
Q82AA
Q93AA
Q103AA
IC93AB
Refer to the schematic diagram for the values of resistors and capacitors.
6
7
19
Page 20
ABCDE
C18 100u16
3
3
S
0
4
FRONT
P
R
R
G
KDC-MP925/W8027
1
WHT
GRN
GRY
BLU
RED
BLK
WHT
GRY
BLU
RED
BLK
WHT
GRY
BLU
RED
BLK
WHT
GRY
RED
BLK
4
143
161
107
116
125
4
13
143
152
161
10987
11126
5
134
143
152
16
1
89
107
116
125
134
143
152
161
98
107
116
125
13
152
98
GRN/BLK
VIOL/BLK
VIOL
PNK/BLK
BRN
ORG/WHT
YEL
GRN
GRN/BLK
VIOL/BLK
VIOL
BRN
ORG/WHT
YEL
GRN
GRN/BLK
VIOL/BLK
VIOL
PNK/BLK
BRN
ORG/WHT
YEL
GRN
GRN/BLK
VIOL/BLK
VIOL
PMK/BLK
BRN
ORG/WHT
YEL
TEL MUTE
TEL MUTE
LINE MUTE
ILLUMI
RL+
RLRR-
RR+
TEL MUTE
FRONT L
WHT/BLK
FRONT R
ANT CONT
ACC
GND
2
FRONT L
FRONT R
ANT CONT
ACC
GND
3
L
R
4
ANT CONT
GRY/BLK
BLU/WHT
P. CON
DC CORD
(E30-6294-05) : KDC-X879
WHT/BLK
GRY/BLK
BLU/WHT
P. CON
DC CORD
(E30-6295-05) : KDC-MP925
WHT/BLK
GRY/BLK
ANT CONT
BLU/WHT
P. CONT
ACC
DC CORD
(E30-6061-05) : FX-9100
FL+
WHT/BLK
FL-
GRY/BLK
FR-
FR+
BLU/WHT
P CONT
BLU/WHT
5
ILLUMI
B.UP
GND
6824
ACC
P.CON
1A53
2
B
1
RR+
7
8
64
7
53
FR-
FL+
RR-
FR+
FL-
RL+
RL-
DC CORD
(E30-4942-05)
KDC-W8027:
6
CAUTION : For continued safety, replace safety critical
components only with manufacturer’s recommended parts
(refer to parts list).
Indicates safety critical components. To reduce the
risk of electric shock, leakage-current or resistance measurements shall be carried out (exposed parts are acceptably insulated from the supply circuit) before the
appliance is returned to the customer.
• DC voltages are as measured with a high impedance
7
voltmeter. Values may vary slightly due to variations
between individual instruments or/and units.
CAUTION : For continued safety,
replace safety critical components
only with manufacturer’s recommended parts (refer to parts list).
Indicates safety critical components. To reduce the risk of electric shock, leakage-current or resistance measurements shall be
carried out (exposed parts are acceptably insulated from the supply
circuit) before the appliance is returned to the customer.
• DC voltages are as measured
with a high impedance voltmeter. Values may vary slightly
due to variations between individual instruments or/and units.
CAUTION : For continued safety, replace safety critical components only with manufacturer’s recommended parts
(refer to parts list).
Indicates safety critical components. To reduce the risk of electric shock, leakage-current or resistance
measurements shall be carried out (exposed parts are acceptably insulated from the supply circuit) before the
appliance is returned to the customer.
7
• DC voltages are as measured with a high impedance voltmeter. Values may vary slightly due to variations between
CAUTION : For continued safety, replace
safety critical components only with
manufacturer’s recommended parts (refer to
parts list).
Indicates safety critical components. To reduce the risk of electric
shock, leakage-current
or resistance measurements shall be carried
out (exposed parts are
acceptably insulated
from the supply circuit)
before the appliance is
returned to the customer.
• DC voltages are as
measured with a high
impedance voltmeter.
Values may vary
slightly due to variations between individual instruments or/
and units.
BCBBBAAZAY
1
2
3
4
5
6
7
X32-5540-00 (2/2)
30
Page 31
KDC-MP925/W8027
EXPLODED VIEW (MECHANISM)
BA
F
37
43
43
51
F
1
Jx2
43
4356
37
2
37
37
H
850
53
Bx2
36
33
55
834
855
843
843
843
32
849
809
33
22
G
8
40
15
806
41
807
35
DPU1
5
E
Ax2
44
2
39
x2
C
801
42
10
11
30
27
29
45
23
18
17
DM2
38
19
12
DFPC1
13
26
31
25
28
14
16
24
DM1
842
F
52
858
(X32)
F
* CD MECHANISM OPERATION DESCRIPTION is not in this sevice manual.
Please refer to service manual for X92-4450-0x (B51-7889-00).
Parts with the exploded numbers larger than 700 are not supplied.
31
Page 32
KDC-MP925/W8027
EXPLODED VIEW (UNIT)
(X16-256)
281
M
G
J
x2
808
768
W
G
776
315
774
709
210
219
225
G
G
PA2
G
R
x2
264
G
x2
K
253
220x2
273
297
295
296
299
773
222
FPC3
(X16-221)
251
286
D
B
DC2
RM1
302
306
DC1
PA1
213
216
214
707
F
(X16-253)
ED1
Q
Q
284
256
252
265
239
237
223
Q
C
230
N
238
232
285
A
Q
250
Depends on the model. Refer to the parts list.
Parts with the exploded numbers larger than 700 are not supplied.
32
RM2
1
SIZE AA
BATTERY
(Not Supplied)
294
300
2
3
204
212
763
208
273
270
790
718
PME1
249
(X16-208)
775
768
278
303
201
298
810
G
293
264
225
G
A
703
x2
C
K
277
809
757
x2
A
B
C
D
E
F
G
J
K
M
N
F
228
279
K
M2x1.9
M2x2
M2x3(BLK)
φ2x5
φ2x5(BLK)
M2x3(BLK)
M2x2
φ2x5(BLK)
FLA T W ASHER
DME1
FC1
FPC1
Vx2
V
C
748
K
229
Cx2
K
245
P
226
287
227
266
Ex2
C
224
K
N09-4448-05
:
N09-6073-05
:
N09-6087-15
:
N09-6088-05
:
N09-6089-15
:
N09-6093-05
:
N09-6094-05
:
N09-6096-05
:
N09-6097-05
:
N09-6105-05
:
N19-2175-04
:
Tx2
V
x2
820
U
812
PM1
267
236
C
S
747
702
206
758
Z
DC
FLA T W ASHER
P
RETAINIING RING
Q
M2x2.5
R
M2.6x5(BLK)
S
M3x5
T
φ3x5
U
φ3x8
V
φ2x4(BLK)
W
φ3x8
X
φ3x10
Y
φ2x4
Z
U
242
816
(X34-303)
760
K
FPC2
X
F1
740
280
272
PM2
U
243
283
N19-2176-04
:
N24-3015-60
:
N38-2025-46
:
N38-2650-45
:
N67-3005-46
:
N83-3005-46
:
N83-3008-46
:
N86-2004-45
:
N80-3008-46
:
N83-3010-46
:
N84-2004-46
:
262
U
759
234
Cx2
S
U
819
Cx2
233
x2
262
U
P
Cx2
x2
262
262
U
W2
(X34-)
Y
x2
817
Q
235
243
Y
U
x2
x2
x2
Page 33
PARTS LIST
✽ New parts
Parts without Parts No. are not supplied.
Les articles non mentionnes dans le Parts No. ne sont pas fournis.
Teile ohne Parts No. werden nicht geliefert.
✽ New parts
Parts without Parts No. are not supplied.
Les articles non mentionnes dans le Parts No. ne sont pas fournis.
Teile ohne Parts No. werden nicht geliefert.
Q2CN24-3015-60E TYPE RETAINING RING
R3CN38-2025-46PAN HEAD MACHIN SCREW
S3DN38-2650-45PAN HEAD MACHIN SCREW
T2DN67-3005-46PAN HEAD SEMS SCREW
U2DN83-3005-46PAN HEAD TAPTITE SCREW
V2DN83-3008-46PAN HEAD TAPTITE SCREW
W3CN86-2004-45
✽ New parts
Parts without Parts No. are not supplied.
Les articles non mentionnes dans le Parts No. ne sont pas fournis.
Teile ohne Parts No. werden nicht geliefert.
✽ New parts
Parts without Parts No. are not supplied.
Les articles non mentionnes dans le Parts No. ne sont pas fournis.
Teile ohne Parts No. werden nicht geliefert.
D2DA204UDIODE
D3DAN202UDIODE
IC191CW12AFG-4VF6 MICROCONTROLLER IC
IC2UPD63712GCMOS-IC
IC3TC94A20F-010MOS-IC
Indicates safety critical components.
36
Page 37
PARTS LIST
✽ New parts
Parts without Parts No. are not supplied.
Les articles non mentionnes dans le Parts No. ne sont pas fournis.
Teile ohne Parts No. werden nicht geliefert.
A
Ref. No.
IC4BA5824FPANALOGUE IC
IC5NJM2880U133ANALOGUE IC
IC5NJM2880U33ANALOGUE IC
IC6S-1112B33MCGANALOGUE IC
IC6XC6219B332MRANALOGUE IC
✽ New parts
Parts without Parts No. are not supplied.
Les articles non mentionnes dans le Parts No. ne sont pas fournis.
Teile ohne Parts No. werden nicht geliefert.
✽ New parts
Parts without Parts No. are not supplied.
Les articles non mentionnes dans le Parts No. ne sont pas fournis.
Teile ohne Parts No. werden nicht geliefert.
✽ New parts
Parts without Parts No. are not supplied.
Les articles non mentionnes dans le Parts No. ne sont pas fournis.
Teile ohne Parts No. werden nicht geliefert.
Q212SA1576ATRANSISTORK1
Q222SC4081TRANSISTORK1
Q23DTC114YUADIGITAL TRANSIST ORK1
Q23UN5214DIGIT AL TRANSIST ORK1
Q242SB1240TRANSISTORK1
Q25DT A123JKDIGITAL TRANSIST ORE1
Q25KRA105SDIGITAL TRANSIST ORE1
Q26DTC144EUADIGITAL TRANSIST OR
Q26UN5213DIGIT AL TRANSIST OR
Q272SC4081TRANSISTOR
✽
UPD703030GC041 MICROCONTROLLER IC
Indicates safety critical components.
40
Page 41
PARTS LIST
✽ New parts
Parts without Parts No. are not supplied.
Les articles non mentionnes dans le Parts No. ne sont pas fournis.
Teile ohne Parts No. werden nicht geliefert.
A
Ref. No.
Q292SC4081TRANSISTOR
Q30,31DTA124EUADIGITAL TRANSISTOR
Q30,31UN5112DIGITAL TRANSISTOR
Q201DTC143TUADIGIT AL TRANSIST OR
Q201UN5216DIGIT AL TRANSIST OR
N
d
d
Parts No.Description
e
w
Desti-
nation
Ref. No.
313B
322B
332A
352B
361A
KDC-MP925/W8027
ELECTRIC UNIT (X34-3030-10, X34-3032-71)
A
N
d
d
Parts No.Description
e
w
✽
D13-2184-04GEAR
✽
D13-2173-03RACK (GEAR)
✽
D14-0763-04ROLLER
✽
D21-2389-04SHAFT
✽
D23-0955-04RETAINER
Desti-
nation
Q202DTC124EUADIGITAL TRANSIST OR
Q202UN5212DIGIT AL TRANSIST OR
Q203-208DTC143TUADIGIT AL TRANSIST OR
Q203-208UN5216DIGIT AL TRANSIST OR
Q2102SC4081TRANSISTOR
Q303DTC124EUADIGITAL TRANSIST OR
Q303UN5212DIGIT AL TRANSIST OR
Q3042SB1188(Q,R)TRANSISTOR
Q305DTC143TUADIGIT AL TRANSIST OR
Q305UN5216DIGIT AL TRANSIST OR
Q501DT A124EU ADIGIT AL TRANSIST OR
Q501UN5112DIGIT AL TRANSIST OR
Q5022SB1427TRANSISTOR
Q503DTC124EUADIGITAL TRANSIST OR
Q503UN5212DIGIT AL TRANSIST OR
Q601DTC124EUADIGITAL TRANSIST OR
Q601UN5212DIGIT AL TRANSIST OR
Q6022SC4081TRANSISTOR
Q603DTC124EUADIGITAL TRANSIST OR
Q603UN5212DIGIT AL TRANSIST OR