KENWOOD KDCX959 Service Manual

Cover page of KENWOOD KDCX959 Service Manual

Service Manual for KENWOOD KDCX959, downloadable as a PDF file.

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© 2002-3 PRINTED IN JAPAN
B51-7931-00 (S) 3397
CD RECEIVER
q
KDC-X959/Z939,Z738,Z838W
SERVICE MANUAL
This service manual does not include information on the CD mechanism assembly (exploded view, parts list,
schematic diagram or mechanism operation description).
For such information, please refer to the CD mechanism assembly service manual (X92-4450-0x: B51-7889-00)
for Z738.
For such information, please refer to the CD mechanism assembly service manual (X92-4590-0x: B51-7933-00)
for KDC-X959/Z939, Z838W.
Front glass
(B10-4240-01)
Panel assy
(A64-2687-11)
KDC-X959
Front glass
(B10-4252-01)
Panel assy
(A64-2723-11)
Z738
Front glass
(B10-4242-01)
Panel assy
(A64-2689-11)
Z838W
Front glass
(B10-4241-01)
Panel assy
(A64-2688-11)
KDC-Z939
Screw set
(N99-1723-05)
: KDC-X959/Z939
Screw set
(N99-1656-05)
Lever
(D10-4674-04)x2
Mounting
hardware assy
(J21-9823-03)
Plastic
cabinet assy
(A02-2712-13)
Remote controller assy
(A70-2026-05)
: except KDC-X959
Remote controller assy
(A70-2025-05)
: KDC-X959
Escutcheon
(B07-3050-02)
: except KDC-X959
(B07-3057-02)
: KDC-X959
DC cord
(E30-6062-05)
: KDC-X959
DC cord
(E30-6063-05)
: except KDC-X959
Antenna adaptor
(T90-0523/0534/0552-05)
: except KDC-X959
background image
© 2002-3 PRINTED IN JAPAN
B51-7931-00 (S) 3397
CD RECEIVER
q
KDC-X959/Z939,Z738,Z838W
SERVICE MANUAL
This service manual does not include information on the CD mechanism assembly (exploded view, parts list,
schematic diagram or mechanism operation description).
For such information, please refer to the CD mechanism assembly service manual (X92-4450-0x: B51-7889-00)
for Z738.
For such information, please refer to the CD mechanism assembly service manual (X92-4590-0x: B51-7933-00)
for KDC-X959/Z939, Z838W.
Front glass
(B10-4240-01)
Panel assy
(A64-2687-11)
KDC-X959
Front glass
(B10-4252-01)
Panel assy
(A64-2723-11)
Z738
Front glass
(B10-4242-01)
Panel assy
(A64-2689-11)
Z838W
Front glass
(B10-4241-01)
Panel assy
(A64-2688-11)
KDC-Z939
Screw set
(N99-1723-05)
: KDC-X959/Z939
Screw set
(N99-1656-05)
Lever
(D10-4674-04)x2
Mounting
hardware assy
(J21-9823-03)
Plastic
cabinet assy
(A02-2712-13)
Remote controller assy
(A70-2026-05)
: except KDC-X959
Remote controller assy
(A70-2025-05)
: KDC-X959
Escutcheon
(B07-3050-02)
: except KDC-X959
(B07-3057-02)
: KDC-X959
DC cord
(E30-6062-05)
: KDC-X959
DC cord
(E30-6063-05)
: except KDC-X959
Antenna adaptor
(T90-0523/0534/0552-05)
: except KDC-X959
background image
KDC-X959/Z939,Z738,Z838W
2
BLOCK
DIAGRAM
CH
F/E
FM+B
PLL+B
AM+B
BUFF
E-VOL
DECODER
RDS
ISO
AMP
OEM
EJECT LED
DSI
DISP
4.5V PRE
DC/DC
2WAY MUTE
ACC DET
DIMMER
TEL-MUTE
ACC
DIMMER
POWER IC
PRE AMP
PRE OUT
SP OUT
MUTE
DRIVER
NOISE
BUFFER
ANT-CON
ANT-CON
P-CON
P-CON
IF+B
CD
MECHA
AUX
SW
OP AMP
E'S
SPEANA
AGC OP AMP
MUTE
4.5V
BU DET
BACK UP
EX AMP CONT
EX AMP CONT
NAVI MUTE
RESET
DET
PANEL
SERVO
AVR
A8V
SW14V
DC/DC
REG
VOLTAGE
SW5V
PANEL5V
Q43,44
Q45,46
Q52
IC14
IC1
IC2
Q36
IC8,Q34
IC5
Q37-42
IC10-12
IC4
Q32,
IC7
33,35
Q15
Q31
Q30
Q14
Q111,112
Q26-29
Q3
Q9
IC3,Q4-6
IC6,Q16-23
Q1
Q10-13
Q7,8
Q201,473,474
IC16
305,306
IC20
IC21
EEP ROM
IC25
Q101,
P-CON
ANT-CON
EXCEPT KDC-X959/Z939
KDC-X959/Z939 ONLY
Z838W/Z738 ONLY
KDC-X959
ONLY
EXCEPT KDC-X959
KDC-X959
EXCEPT
Z738 ONLY
EXCEPT Z738
MI-COM
PANEL
MI-COM
OEL
BUFFER
KEY ILL
KEY
MATRIX
SW
REMO
SPEANA
BPF
BUFFER
SRAM
ROM
3.3V REG
RESET SW
+B
OEL PAN 5V
Q703,704
Z738
EXCEPT
EXCEPT Z738
IC4
IC3
IC9
IC2
IC1
IC6
IC7
Q4,5,9
IC8
Q6,8
OEL 16V
+B
IC24
BU5V
Q475,476
CONVERTER
CD4.7V
IC23,Q472
EXCEPT
Z738
FLUSH
ROM
IC5
SDA
SCL
S-METER
SW5V
RDCK
FM
AM
SW5V
AUDIO OUT
BACK UP
DATA H
DATA C
MUTE
CH
SD
A
RDDA
BU5V
BU5V
DSI
EJECT
G
EJECT
R/G
CD/MD
FM
AM
1512mV
866mV
3795mV
BU5V
PRE MUTE
PMUTE
PSTBY
MUTE
BEEP
AUX SW
CD-AUX
E-VOL OUT LEVEL
A8V
IFC OUT
SW5V
A8V
SCL
QUAL
AFS
SERVO
BU5V
Rch
Lch
A8V
A8V
A8V
REQ H
RST
REQ C
CH CON
CLK
A8V
+B
-B
BACK UP
BU5V
BU5V
A8V
+B
-B
SERVO
MI-COM
SW5V
MI-COM
BU5V
P5V
MI-COM
REMO
O-DATA
O-CE
O-CLK
1.8V PRE
476mV
274mV
676mV
1695mV
4.5V PRE
896mV
1695mV
Z838W (E)
4.5V PRE
AUX
CHANGER
4.5V PRE
1.8V PRE
3795mV
1512mV
866mV
896mV
274mV
1695mV
QU
A
L
E'S OUT LEVEL
PRE OUT LEVEL
M RST
SW1
SW2
SW3
LO/EJ
M STOP
M SW
MUTE R
MUTE L
KDC-X959 (K)
CHANGER
FM
AM
CD/MD
AUX
AM
FM
CHANGER
AUX
CD/MD
2361mV
722mV
4.5V PRE
4469mV
848mV
1.8V PRE
1481mV
3717mV
1254mV
1781mV
4469mV
GREEN
RED
KS1-KS4
KR1-KR5
F01-F06
WAVE
CE
SC
REQ
SC
D
A
T
A
P
ANRST
REMO
P
ANCON
MC
REQ
MC
CLK
MC
D
A
T
A
RST
WE
D0-D15
A0-A20
OE
CE
RY
WP
D0-D15
WR
RD
RSTB
RD
Y
CE
TEST
RS
WE
A0-A20
LB
UB
CE
OE
D0-D15
P5V
OEL 16V
P5V
OEL PAN 5V
Z738 (E)
CD4.7V
OEL PAN 5V
OEL 16V
CD4.7V
MI-COM
KDC-Z939 (M)
KDC-Z939 (M)
KDC-X959 (K)
Z838W (E)
4.5V PRE
Z738 (E)
476mV
676mV
1695mV
KDC-X959 (K)
KDC-Z939 (M)
Z838W (E)
Z738 (E)
4.5V PRE
FCS
FDIN
FDOUT
FCLK
,
,
,
,
251mV (E,M)TYPE
470mV (K)TYPE
215mV
1200mV
1200mV
A8V
background image
KDC-X959/Z939,Z738,Z838W
3
q SWITCH UNIT (X16-169X-XX)
Ref.No.
Component Name
Application/Function
Operation/Condition/Compatibility
IC1
SI-3033LSA-TL
3.3V AVR
+3.3V Output
IC2
TC74HC4050AFT
Buffer
5V
3.3V logic level shifting
IC3
RS-171
Remote sensor IC
IC4
BA3830F
BPF IC
BPF for the spectrum analyser indicator
IC5
M25P20
Flush ROM
For custom display data of the indicator
IC6
MX23L3213TI109
ROM
For display data of the indicator
IC7
IS61LV641615TI
SRAM
For display data of the indicator
IC8
703107AGJ121
Panel MI-COM.
IC9
TC7WT126FU
Buffer
3V
5V logic level shifting
IC10
TC7SH08F
WE/WR control signal
AND gate
generation
Q4
DTC123JUA
Key illumination Red SW
When a base goes Lo, Q4 is turned on, and key illumination Red is lit.
Q5
DTC123JUA
Key illumination Green SW
When a base goes Lo, Q5 is turned on, and key illumination Green is lit.
Q6
CPH3105
OEL+B SW
When Q8's base goes Hi, Q6 is turned on, and OEL 16V power line is
Q8
DTC114EUA or UN5111
supplied to OEL module.
Q9
DTC123JUA
Key illumination Blue SW When a base goes Lo, Q9 is turned on, and key illumination Blue is lit.
COMPONENT DESCRIPTION
q ELECTRIC UNIT (X25-927X-XX)
Ref.No.
Component Name
Application/Function
Operation/Condition/Compatibility
IC1
UPD703033GFA14
System MI-COM.
For KDC-X959/Z939, Z838W
IC1
UPD703033GFA15
System MI-COM.
For Z738
IC2
TDA7407
E-VOL. & N.C. MPX
IC3
M5237ML
AVR IC
IC is combined with Q4, and it works as the error detection, the Q4's driver.
IC4
TDA7560
Power IC
IC5
TDA7401
High pass filter &
HPF(Front/Rear output), LPF, Non-Fader switching and volume function
Non-Fader volume
IC6
ICL7660SIBA
-9V AVR
DC/DC converter, -9V output for pre-output amplifier
IC7
TC74HC02AF
Mute logic
2-input NOR x 4
IC8
NJM4565M-TE2
Op. amp.
Amplifier for the spectrum analyser and generation of Vref.(1/2Vcc) voltage
IC10
NJM4565M-TE2
Op. amp.
Amplifier for the front pre-outputs
IC11
NJM4565M-TE2
Op. amp.
Amplifier for the non-fader pre-outputs
IC12
NJM4565M-TE2
Op. amp.
Amplifier for the rear pre-outputs
IC14
TDA7479D
RDS decoder
IC16
S-80837ANNP
Reset IC
When BU 5V voltage is less than 3.7V, IC outputs Lo.
IC20
BA3121F
Isolation amplifier
AUX inputs isolation amplifier
IC21
BA3129F
Switched op.amp.
Input switching with AUX inputs and CD inputs
IC23
SI-8033JD
MECHA. AVR
DC/DC converter, +5V output for CD mechanism adapted for MP3/WMA
IC24
LT1930A
OEL AVR
DC/DC converter, +16V output for OEL module
IC25
BR24C02F-W
EEPROM
Q1
2SD2375
CD servo AVR
AVR for CD mechanism servo operation, +7.5V output.
Q3
2SA1037K
SW 5V
While a base goes Lo, SW 5V is supplied to the microprocessor
peripheral circuits.
Q4
2SA2057
A.+8V AVR
Q4 is combined with IC3, and it works as the power supply of +8.0V output.
Q5
DTC144EUA or UN5213
A.+8V AVR SW
When Q5's base goes Hi, Q6 is turned on, and A.+8V AVR is working.
Q6
DTA124EUA or UN5112
Q7
DTA124EUA or UN5112
SW14V
When Q8's base goes Hi, Q7 is turned on, and A.+8V AVR, CD servo
Q8
DTC124EUA or UN5212
AVR and A.+10V AVR are working.
Q9
2SB1427
PAN5V SW
For PAN5V on/off switching. When a base goes Lo with panel attached
to the set, Q9 is turned on, and PAN5V is supplied to the panel.
Q10
2SA2057
OEL/Illumination AVR
When Q11's base goes Hi, AVR outputs +9V.
Q11
2SC4081
Q12
DTC124EUA or UN5212
OEL/Illumination AVR SW
When Q12's base goes Hi, Q13 is turned on, and OEL/Illumination AVR
Q13
DTA124EUA or UN5112
is working.
Q14
DTA123JK or KRA105S
EXT. AMP CON. SW
When a base goes Lo, Q14 is turned on, and control pulse signal is outputted.
Q15
DTC144EUA or UN5213 Dimmer detection SW
When vehicle small lamps turn on, Q15's base goes Hi, and it is turned on.
background image
KDC-X959/Z939,Z738,Z838W
4
Q16
2SB1443
A.+10V AVR
When Q17's base goes Hi, AVR outputs +10V.
Q17
2SC4081
Q18
2SA1576A
Q18 and Q20 work as a differential amplifier, Q19 works as a driver,
Q19
2SC4081
PRE-AMP -9V AVR
and -9.3V is supplied to OP AMP.
Q20
2SA1576A
Q21
2SC4081
Q21and Q22 work as a differential amplifier, Q23 works as a driver,
Q22
2SC4081
PRE-AMP +9V AVR
and +9.7V is supplied to OP AMP.
Q23
2SA1576A
Q26
2SB1277(Q,R)
P-CON SW
When Q29's base goes Hi, Q26 is turned on, and P-CON signal is outputted.
Q29
DTC114YUA or UN5214
Works during POWER ON mode.
Q27
2SA1576A
P-CON. protection SW
Protect Q26 by turning ON when P-CON output is grounded.
Q28
DTA124EUA or UN5112 P-CON. protection inhibit SW Prevents Q27 tuning ON during start-up after power ON.
While BACKUP is applied, a base goes Hi, and Q30 is turned on.
Q30
2SC4081
BU detection SW
When momentary power down has detected, a base goes Lo, and
Q30 is turned off.
Q31
2SC4081
ACC detection SW
While ACC is applied, a base goes Hi, and Q31 is turned on.
Q32
DTA124EUA or UN5112 Mute driver for R Ch.
When BU detection SW or System RESET or MI-COM.'s MUTE is
Q33
DTA124EUA or UN5112 Mute driver for L Ch.
working, a base goes Lo, and Q32 and Q33 are turned on.
Q34
2SC4081
AGC for spectrum analyser
Q35
DTC124EUA or UN5212 E. VOL. mute SW
When BU detection SW or MI-COM.'s mute is working, a base goes
Hi, and Q35 is turned on.
Q36
DTC143TUA or UN5216 Noise buffer
Q37
DTC143TUA or UN5216 Audio mute SW (Front L) When Q37's base goes Hi, Pre-output is muting.
Q38
DTC143TUA or UN5216 Audio mute SW (Front R) When Q38's base goes Hi, Pre-output is muting.
Q39
DTC143TUA or UN5216 Audio mute SW (Non Fader R) When Q39's base goes Hi, Pre-output is muting.
Q40
DTC143TUA or UN5216 Audio mute SW (Non Fader L) When Q40's base goes Hi, Pre-output is muting.
Q41
DTC143TUA or UN5216 Audio mute SW (Rear L) When Q41's base goes Hi, Pre-output is muting.
Q42
DTC143TUA or UN5216 Audio mute SW (Rear R) When Q42's base goes Hi, Pre-output is muting.
Q43
DTC124EUA or UN5212
FM+B SW
When Q43's base goes Hi, Q44 is turned on, and A.+8V is supplied to
Q44
CPH3105
the F/E. Works during FM reception mode or RDS reception mode.
Q45
DTC124EUA or UN5212
AM+B SW
When Q45's base goes Hi, Q46 is turned on, and A.+8V is supplied to
Q46
CPH3105
the F/E. Works during AM reception mode.
Q52
DTC143TUA or UN5216 Composite signai buffer
Q101
DTA114YUA or UN5114 DSI LED SW
When a base goes Lo, Q101 is turned on, and DSI illumination LED is lit.
Q103
DTC124EUA or UN5212 AUX/CD selector SW
When a base goes Hi, AUX inputs are selected.
When a base goes Lo, CD inputs are selected.
Q111
2SB1277(Q,R)
P-ANT SW
When Q112's base goes Hi, Q111 is turned on, and P-ANT signal is outputted.
Q112
DTC114YUA or UN5214
Works during FM/AM reception mode or RDS reception mode.
Q201
2SC4081
BU5V discharge SW
When BU OFF is detected, Q201 is turned on during the base Hi condition.
Q305
DTA114YUA or UN5114 EJECT LED SW
When a base goes Lo, Q305 is turned on, and EJECT illumination
LED is lit.
Q306
DTA114YUA or UN5114 EJECT LED SW
When a base goes Lo, Q306 is turned on, and EJECT illumination
LED is lit.
Q472
DTC144EUA or UN5213 MECHA. AVR SW
When a base goes Hi, Q472 is turned on, and MECHA. AVR operation stops.
Q473
2SC4081
BU 5V AVR
While BACKUP is applied, AVR outputs +5V.
Q474
2SA2057
Q473 and Q474 are inverted Darlington connection.
Q475
2SC4081
Voltage converter
Q475 and Q476 work as voltage coverter for BU 5V AVR, and it output +9V.
Q476
2SA2057
Q703
2SA2057
OEL PAN5V AVR
While BACKUP is applied, AVR outputs +5V.
Q704
2SC4081
Q703 and Q704 are inverted Darlington connection.
Ref.No.
Component Name
Application/Function
Operation/Condition/Compatibility
COMPONENT DESCRIPTION
background image
KDC-X959/Z939,Z738,Z838W
5
q IC8 (SWITCH UNIT: X16-169X-XX)
Pin No.
Pin Name
I/O
Description
Processing Operation
1-7
D14-D8
I/O Data input/output with OEL, SRAM IC and ROM IC
8
PAN3.3VDD
-
Positive power supply connection terminal
Connected to 3.3V lines.
9
VSS
-
Ground connection terminal
Connected to GND lines.
10-17 D7-D0
I/O Data input/output with OEL, SRAM IC and ROM IC
18
MODE2
I
Not used(Pull down to GND lines)
19-21 NC
O
Not used(N.C.)
22
RSTB_OEL
I/O Reset output to OEL
Lo: Reset, Hi-Z: Normal operation
23,24 NC
I/O
Not used(N.C.)
25
SRAM_TESTI
I
SRAM test terminal
Not used(Pull down to GND lines)
26
SRAM_TESTO
O
SRAM test terminal
Not used(N.C.)
27
PAN3.3VDD
-
Positive power supply connection terminal
Connected to 3.3V lines.
28
VSS
-
Ground connection terminal
Connected to GND lines.
29-33 KR1-5
I
Key return input 1-5
34
NC
O
Not used(N.C.)
35
SRAM_CH
O
Not used(N.C.)
36
16V OEL,
I/O LED, OEL AVR ON/OFF control output
Hi-Z: AVR OFF, Hi: AVR ON
ILL BLUE
37
PAN3.3VDD
-
Positive power supply connection terminal
Connected to 3.3V lines.
38
VSS
-
Ground connection terminal
Connected to GND lines.
39
NC
O
Not used(N.C.)
40-43 KS4-1
I/O Key scan output 4-1
Lo: Scan ON, Hi-Z: Scan OFF
44,45 NC
O
Not used(N.C.)
46
NMI
I
Not used(Connected to GND lines)
47
PAN3.3VDD
-
Positive power supply connection terminal
Connected to 3.3V lines.
48
VSS
-
Ground connection terminal
Connected to GND lines.
49
CE_SD
O
Data line chip select output to IC9
Hi: SCDATA output enable
50
NC
O
Not used(N.C.)
51
SCREQ
O
Communication request output to the system MI-COM. Lo: Standby, Hi: Request
52
NC
O
Not used(N.C.)
53
MCREQ
I
Communication request input from the system MI-COM. Hi: Request
54,55 NC
O
Not used(N.C.)
56
FCS
I/O CS output to the flush ROM IC
Lo: Chip select
57
MODE1
I
Not used(Pull down to GND lines)
58
MODE0
I
Not used(Pull down to GND lines)
59
PARST
I
Reset input
Lo: Reset
60
CKSEL
I
Clock generator operation mode setting terminal
Connected to GND lines.
61
CVDD
-
Positive power supply connection terminal
Connected to 3.3V lines.
62
X2
-
Main clock resonator connection terminal
63
X1
I
Main clock resonator connection terminal
64
CVSS
-
Ground connection terminal
Connected to GND lines.
65
MCCLK
I
Clock input from the system MI-COM.
66
MCDATA
I
Data input from the system MI-COM.
67
SCDATA
O
Data output to the system MI-COM.
68
FCLK
O
Write clock output to the flush ROM IC
69
FDATAIN
I/O Data input from the flush ROM IC
70
FDATAOUT
O
Data output to the flush ROM IC
71
AVDD
-
A/D converter positive power supply connection terminal Connected to 3.3V lines.
72
AVSS
-
A/D converter ground connection terminal
Connected to GND lines.
73
ANI7
I
A/D converter analogue input terminal
Not used(Connected to GND lines)
74
WAVE IN
I
Audio input
75
F06
I
BPF(10kHz) input
76
F05
I
BPF(3.3kHz) input
77
F04
I
BPF(1kHz) input
78
F03
I
BPF(330Hz) input
79
F02
I
BPF(150Hz) input
80
F01
I
BPF(63Hz) input
81
PAN3.3VDD
-
Positive power supply connection terminal
Connected to 3.3V lines.
MICROCOMPUTER'S TERMINAL DESCRIPTION

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