Kenwood KDC-BT7539U Service Manual page 34

U
KDC-BT7539U/BT8041U
/BT8141UY/BT838U
C970 R970 R900
4.0V
5
4.0V
1 22K 10K
C972 R972 R902
7 8.0V
1 22K 10K
TP972
14
A8V
Q900
R906 R904
4.7K 4.7K
R984 R910 C904
12K 2.2K 1000P
14 BT-L
3.3V-1
23
X701
9.000MHz
R727
1M
R
3.3V 76
DVCC3A
9MHz
3.3V
3.3V
0V
77
USB OC
3.3V
78
USB VBUS SW 0V
3.3V
79
USB D+ 0V
3.3V
80
USB D- 0V
81
AM0 3.3V
82
CD LOE LIM SW
3.3V
0V
0V
83 3.3V
DVSS
0V
100
84
DATA M
85 3.3V
DATA S
0V
100
86
CLK
3.3V
6
87
CD SO 0V
0
3.3V
7
88
CD SI
0V
0
89
CD CLK
3.3V
3.3V
0V
0V
40 100
90
IPOD SDA
42 100
91
IPOD SCL
92
3.3V
BSIF BCK
0V
93
BSIF DATA
3.3V
94
BSIF GATE 0V
3.3V 95
DVCC3A
0V 96
ROMCOR DET
97
NC 3.3V
98
3.3V 0V
NC
0V
99
NC
32.768kHz
100
DVSS
0V
TP707
X700
32.768kHz
TP700
22
BU3.3V
34
X34-597x-xx (5/5)
V
C968
0.1
0V
IC964
5 4
GND
R901 R969 C969
6 3 4.0V
2 4.0V
10K 22K 1
7
8 1
R903 R971 C971
VCC
10K 22K 1
A8V
Q901
R905 R907
4.7K 4.7K
C905 R911
1000P 2.2K
BUFFER
IC965
3.3V
TP975
5.0V
L962
3.3V
180
19
3.3V
3.3V-1
22
TP708
3.3V
0V
3.3V
0V
3.3V
0V
3.3V
0V
3.3V
0V
IC700
SUB u-COM
CD DRIVEMUTE
CD SRAMSTB
3.3V
1.8V
0V
3.3V
1.8V
0V
3.3V
C705 C706
0V
0.01 0.01
C716 C717
10 10
BU3.3V
23
D5V
W
R978
TP974
100
10
TP973
R977
12
100
TP967 TP963
6
U1 OUT
U1 IN
TP968
NRESET
8
VCC
TP978
SPK2N/I2S OUT
5
TP979
SPK1N/I2S IN
6
TP976
SPK2P/I2S SYNC
7
TP977
SPK1P/I2S CLK
8
MIC2N
TP964
MIC1N
10
MIC2P
MIC1P
12
VSS
NC/VSS
TP966
R963
330 U0 OUT
1
R964
U0 IN
3
330
TP965
R965
GND
47K
GND
19
GND
GND
D5V
50
NC
49
NC
48
NC
47
NC
46
NC
3.3V
45
DVCC3A
C709
44 0V
DVSS
43
0.01
NC
42
NC
41
NC
40
NC
39
NC
38
NC
37
NC
Q704
36
NC
SRAM
35
STANDBY
NC
34
CONTROL
NC
BUFFER
33
NC
3.3V
32
R716
0V NC
31 100
CD PON 31
R715
1K
30
30
Q704 29
29
3.3V
0V
R714
3.3V
R713
0V
100 22K
28
DSP REQ 28
27 3.3V
DVCC3A
26 0V C708
DVSS
0.01
23
3.3V
0V
Q702,703
3.3V AVR for
IC700
(FLASH
ROM TYPE)
Q703
R710
1K
Q702
23
D5V
X
CN962
CAUTION : For continued
1
safety, re place safe ty critical
MIC
2 components only with manu-
facturer's rec om mend ed parts
(refer to parts list).
CN901
Indicates safety critical com-
1 2
po nents. To reduce the risk of
3 4
electric shock, leakage-cur rent
or resis tance mea sure ments
shall be carried out (exposed
5 6
parts are acceptably in sulat ed
to BT from the supply cir cuit) be fore
7 8
MODULE
the appli ance is returned to the
9 10
customer.
11 12
• DC voltages are as mea-
13 14
sured with a high impedance
voltmeter. Val ues may vary
15 16
slight ly due to vari a tions be-
tween indi vidual instru ments
CN902
or/and units.
1 2
to BT
MODULE
3 4
(X34- ) (B/2)
L964
2.4425GHz
J682
1
to
ANT
GND1
BT MODULE
2
3
P682
IC11 : M5237ML-CF0J
IC21 : R1114N331B-TR
IC61 : LT3684EMSE
IC71 : LT3467A
IC211 : STMPS2151STR
IC301 : E-TDA7478AD
IC331,964 : NJM4565V-ZB
IC451 : E-TDA7415CB
IC501 : E-TDA7850A
IC601 : 30626FHP3A7GP
IC602 : XC6120N362N1
IC603 : NOT USED
IC604 : 74HC2G02DP
IC605 : 74AHCT08PW
IC607 : 74LVC08APW
IC608 : BR24L04FV-W
IC700 : 92CD28AFG6VV1
IC750 : 341S2094
IC751 : BR24L04FV-W
IC965 : SI-3033KMS
Q11,21,31,41,51 : KTA1046-P
Q12,33,43,407,408,683
: DTA124EUA
Q13,24,34,44,322,680,682
: DTC124EUA
Q22,32,42,52,72,
121-123,900,901: 2SC4081
Q23,321,681,703 : 2SA1577
Q71 : 2SB1184
Q81 : 2SC2713-F
Q82 : 2SB1260
Q141,145 : 2SB1188(Q,R)
Q142 : 2SA1576A
Q143 : DTA114EUA
Q144,146,602,684,702,
704,705 : DTC114YUA
Q151 : DTC144EUA
Q331 : 2SC4617
Q401-406 : DTC143TUA
Q603 : DTA114YUA
D1 : S2V60-5009F46
D21,71-73 : D1FJ4
D22 : UDZW5.6(B)
D31 : UDZW8.2(B)
D41 : UDZW10(B)
D42,75,143,401,402,
453-455,501,502: DAP202U
D51 : UDZW15(B)
D61 :
∗
D74 : UDZW9.1(B)
D121,123,421-423,431-433
: UDZW6.8(B)
D124,161-164,434,439,973
: UDZW6.2(B)
D141,142,144,145 : D1F60-5063
D151,971,972 : UDZW4.7(B)
D201,202 : AVRL1613R3FTA
D331 : DA204U
D611 : DA204K
SIGNAL LINE
GND LINE
B LINE
KDC-BT7539U/BT8041U/
BT8141UY/BT838U (1/2)
Y
1
2
3
4
5
6
7