Kenwood KDC-MP538U Service Manual page 26

A
KDC-MP538U/MP6039/MP6539U/
W6041U/W6141UY/W6541U/W6641UY/X592
1
SW/REAR
ELECTRIC UNIT
(X34-588x-xx)
L
J401
2
R403
22K
Q401
3
ANT.
W321
1
2
4
3
TP344 TP345 TP346
TP681
D611
J681
TP682
PAN GND 1
5
PAN5 2
TP685
PAN RST 3
TP684
ILL+B 4
TP686
SA CLK 5
TP687
SA RST 6
TP688
X16-
SA OUT 7
J1
TP689
RST 8
TP690
2/2
PAN REQ 9
TP691
SYS DATA 10
A
TP692
SC CON 11
TP693
SYS REQ 12
TP694
PAN DATA 13
TP695
F DC 14
TP696
KEY EJECT 15
6 TP698
FL GND 16
TP697
KEY SRC 17
TP699
FL+B 18
ESD 19
TP616
PANEL DET 20
P681
7
26
X34-588x-xx (1/5)
B
PRE OUT
L R
REAR
J401
J401
R
FRONT
FRONT
SW/ SUB
REAR WOOFER
B
SUB FRONT
R404 R409 R410
22K 22K 22K
Q402 Q403 Q404
Q401-406
Q407
PRE-OUT
MUTE SW
Q407,408
PRE-OUT
MUTE
DRIVER
1
W304
A322
RFGND
PANEL+5V SW
ANT INPUT
Q681
D5V
AM+B
OSCGND
Q682
COM+B
SDA
SCL
D-GND
VDD5V
TP683 38
R663 100
PLLGND
22
SMETER
ILL+B
AMIFOUT
R342 100
20
QUALITY
R343 1K
RDSOUT
21
R344 1K
D-GND2
22
RDSMUTE
R684 1K
10
STDGND
R685 1K
32
R686 100
29
R687 100
IF+B
44
R688 100
31
IFGND
R689 100
30
FDC
R654 1K
21
R651 1K
18
FL+B
R690 1K
17
C610
1
C
AUX IN
L R
J421
TP423
TP421
C
REAR
6
R415 R416
22K 22K
Q405 Q406
A
8.0V
Q408
5.6V
C105
1000P
5.6V
84
TP30
Q321,322
TP343
F/E AM+B SW
26
24
R321 R322
TP342
23 PON AM
22K 820
22
TP341
NC
85
L321 Q321
21 TP340
4.7uH
Q322 5
20
19
TP339
L322
VT
4.7uH
18 TP338
17 TP337 TP336
IFC 86
R323 470
16 TP335 TP334
28
R342 470
15 TP333 TP332
27
14
L323
4.7uH
13 TP331
12
11 TP329 TP330
87
10 TP328
9 TP327
88
8 TP326
7
6 TP324 TP325
89
5
TP323
4
R TU-R
TP322
3
L TU-L 10
2
TP321
1
TUN GND
25
3
C335
C336 0.01
10u35
+
R341
10K
IC331
R340
5 4
GND
6 3
10K
SPE-ANA
2
AGC
7
OPE
8.0V 8 1
AMP VCC
D
J431
1
2
3
R426 4
TP420
1K
C424
0.01
D421
D422
D423
0V 0V
OP
Q101
AMP
IC101
Q102
TP29
0V
R112
R113 4.7K
5.6V
Q103
D104 1K
1
2
Q103
4VPRE+B PROTECT
5
R301 2.2K
H
R302 2.2K
5V
0V RDS
DECODER IC
IC301
5V
16
0V
1 RDCL
QUAL
15
2
T57
TP300
RDDA
2.4V
C307
3
14
VREF
OSCOUT
2.2
C308
4 4.332MHz
MPX
270P
13
5.0V 5
OSCIN
OSEL
12 5.0V
0V VS
6
GND
11
EXTRES
7
10
NU
TM
8 9
FILOUT FSEL
Q331
MUTING LOGIC IC
AGC
C617 0.01
R333
47K
Q331
C333
R335
4.7
47K
R336
820
R338 C334 R339
1K 4.7 47K
C337
4.7
E
5 9
6 10
13
7 11
8 12
5L I/F
D433 D439
D431 D434
D432
ESD2
GND
9
7
6
R101
Q101,102
22
1/2W
4VPRE+B
R104 R106
Q104
1K 1K
Q105
1
2
5
19
2
3
5V
0V
R303
16
2.2K
R304
1K C301
10
18P
C302
18P
0V
10
3
3 10
5.0V
IC604
5V
0V
8
VCC
1
7
2
5V
6
0V
3
5
0V 4
GND
5V
MUTE DRV. 0V