Kenwood KDC-BT7539U Service Manual page 30

A
KDC-BT7539U/BT8041U
/BT8141UY/BT838U
1
(X34-597x-xx) (A/2)
2
REAR & SUB
R403
22K
Q401
3
ANT.
W321
1
2
4
3
TP344
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
TP698
6
FL GND 16
TP697
KEY SRC 17
TP699
FL+B 18
ESD 19
TP616
PANEL DET 20
P681
7
30
X34-597x-xx (1/5)
B
PRE OUT
L R
REAR
∗
J401
∗
J401
FRONT
FRONT
REAR & SUB
SUB WOOFER
∗
A
FRONT
R404 R409 R410
22K 22K 22K
Q402 Q403 Q404
Q401-406
Q407
PRE-OUT
MUTE SW
Q407,408
PRE-OUT
MUTE
DRIVER
1
∗
A322
26
RFGND
PANEL+5V SW
ANT INPUT
Q681
NC
D5V
AM+B
OSCGND
Q682
COM+B
IFC
SDA
SCL
D-GND
VDD5V
TP683 38
R663 100
PLLGND
22
SMETER
ILL+B
AMIFOUT
R342 100
20
QUALITY
R343 1K
RDSOUT
21 25
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
25
FDC
R654 1K
21
R651 1K
18
FL+B
R690 1K
17
C621
100P
C
AUX IN
L R
J421
TP423
TP421
REAR
6
R415 R416
22K 22K
Q405 Q406
Q408
84 2
Q321,322
TP343
F/E AM+B SW
24
R321 R322
TP342
PON AM
23
22K 820
22
TP341
85
L321 Q321
21 TP340
4.7uH
Q322 5
20
19
TP339
L322
VT
4.7uH
18 TP338
17 TP337 TP336
86
R323 470
16 TP335 TP334
28
R324 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
3
C335
C336 0.01
10u35
+
R341
10K
IC331
R340
5 4
GND
10K 6 3
SPE-ANA
2
AGC
7
OPE
8.0V 8 1
VCC
AMP
25
D
J431
1
R426
TP420
1K
2
C424
3
0.01
4
D421
D422
D423
1
5
R301 2.2K
∗
B
R302 2.2K
5V
0V RDS
DECODER IC
IC301
5V
R303
16
0V
1 RDCL
QUAL
2.2K
15
2
T57
TP300
RDDA
2.4V
R304
C307
3
1K
14
VREF
OSCOUT
2.2
C308 4 4.332MHz
MPX
270P
13
5.0V 5
OSCIN
OSEL
12 5.0V
0V 6 VS
GND 11
EXTRES
7
10
NU
TM
8 9
FILOUT FSEL
Q331
AGC
C617 0.01
R333
5V
0V
47K
Q331
C333
R335
5V
4.7
47K
0V
R336
0V
820
R338 C334 R339
MUTE DRV.
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
1
2
5
19
2
3
5V
0V
16
C301
10
18P
C302
18P
0V
10
3
4
3 10
5.0V
IC604
8
VCC
1
7
2
6
3
5
4
GND 4
5V
0V
25