Table of Contents
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10. SCHEMATIC DIAGRAM
10.1 TUNER AMP UNIT (GUIDE PAGE)
A
Note: When ordering service parts, be sure to refer to " EXPLODED VIEWS AND PARTS LIST" or
"ELECTRICAL PARTS LIST".
Large size
SCH diagram
A-a
A-b
A-a
A-b
Guide page
Detailed page
A-a
A-b
B
C
D
IP-BUS
131 - 160
E
F
A
90
1
2
L1152
L1153
VDD
ACC5V
USB5V
5.2V
CTF1661-A
IC1101
CTH1253-A
USBCTL
(15uH)
1
5
EN
VOUT
2
VD5
FLG
GND
3
4
FLG
VIN
R5523N001B
USGND
VD3
VD5
IC1111
ACC3
1
5
VIN
VOUT
2
VSS
3
4
ON/OFF
NC
S-1200B33-M5
T1
GNDDDC
R1162
0
>
VD5
5.1V
L1121
P1121
CTH1358-A-T
CEK1286-A
3.0A
NM
VD8
GNDDDC
>
VD8_1
8.0V
VD8_2
L1131
P1131
CTH1358-A-T
CEK1286-A
NM
3.0A
GNDDDC
R114
NM
R115
NM
IC111
LS1
TC74VHCT08AFKS1
8.0V
VD5
VD8
DGND
101 - 130
5.1V
VD8
1
1A
VCC
2
CN101
1B
4B
3
1Y
CKS3844
4A
4
1
2A
VD
4Y
GNDDDC
5 2B
2
VD
3B
6 2Y
3
VD
3A
7 GND
PGND
4
3Y
PGND
5
DGND
6
VDD5
DGND
VDD5
7
AMUTE
R101
470
AMUTE
8
XRES
R102
1k
9
XRES
IRQPWR
R103
470
IRQPWR
10
StoMS
R104
220
S
MS5TX
11
MStoS
R105
220
MS5
SRX
12
C
STANBY
R106
470
13
STANBY
AGND
AGND
14
LSR
R108
470
CN1901
ROUT
15
AGND
16
LSL
R107
LOUT
17
LSV
470
18
AGND
AGND
R109
19
COMPOSIT
VIGND
C107
0
VGND
20
VIGND
NM
21
DGND
D-2
D-
22
D+2
D+
23
DGND
24
R128
L101
IECOUT
25
CTF1389-A
390
DGND
26
SCK
R121
0
SCK
27
SDA
R122
0
28
SDA
CPRST
R123
0
5
11
CPRST
29
VSS
I2C_SCL/SPI_SIMO
4
12
DGND
30
VCC
I2C_SDA/SPI_SOMI
3
13
nRESET
R124
LSDGND
MODE0/SPI_CLK
14
NC2
2
MODE1/SPI_nSS
NC8
100k
15
1
NC1
IC121
341S2162
NM
Ver2.0B
LSDGND
R131
NM
180
VDD1
L151
R135
CTF1528-A
1k
JA131
BS+
R136
1
CKS5271
GND
100
2
3
4
BS-
R139
5
C131
100
6
BUP
IPL+
0.1u/10
Q131
7
R141
ABO
LSA1576UB(QRS)
RFGND
8
R132
IPR+
2.2k
9
IPR-
180
10
IPL-
R143
11
4.7k
RFGND
R140 1k
R436
0
FM/AM TUNER UNIT
401 - 500
C432
Q430
NM
C431
NM
NM
FM(30%): -25.50 dBs
RFGND
AM(30%): -25.37 dBs
R437
U401
TUNR
0
Rch
TUNL
24
Lch
23
BEGND
RFGND
22
RDS_HSLK
21
RDS_LOCK
20
RDS_DATA
19
RDS_CK
TUN3V
18
VDD_3.3
17
COMP
L451
16
C457
DGND
15
TUN5V2
NM
DO
14
RFGND
ROM_VDD
DGND
13
OSCGND
R451
680
12
R452
NM
LDET
11
RFGND
R453
680
DI
10
R454
680
CK
9
R455
680
CE1
8
R457
680
WC
7
R471
680
CE2
6
SYS+B
SL
VCC
L471
5
VCC
1u
4
FM_ANT
3
RF_GND
2
L472
RFGND
AM_ANT
1
22u
C475
JA471
1000p/50
MANT
3
YKS5041
2
1
AGND
RFGND
RFGND
RFGND
DGND
The > mark found on some component parts indicates
the importance of the safety factor of the part.
Therefore, when replacing, be sure to use parts of
identical designation.
DVH-335UB/XNRC
2
3
A-a
DD CON
1101 - 1200
C1142
1.0u/35
CCG1236
C1143
CCG1236
OUTH1
C1144
R1142
(1/8W)
C1146
NM
C1147
NM
10
R1189
R1190
D1142
D1141
10k
10k
RB551V-30
RB551V-30
C1141
CTF1661
C1145
0.033u/50
0.033u/50
13
48
14
47
SW1
SW2
R1161
15
DGND1
DGND2
46
OUTL1
OUTL2
16
45
2.2
(1/8W)
N.C.4
N.C.19
C1161
17
44
VREG5A
VREG5
3.3u/10
18
43
N.C.5
N.C.18
IC1103
R1191
19
42
BD9013KV
N.C.6
N.C.17
20
41
1k
N.C.7
EXTVCC
21
40
FB1
N.C.16
22
FB2
39
COMP1
COMP2
SS1
23
SS2
38
N.C.8
24
37
GNDDDC
IC112
R111
R112
TC74VHC08FK
0
0
14
1
14
1A
VCC
13
2
13
1B
4B
12
3
12
1Y
XRST
4A
11
4
11
2A
4Y
10
5 2B
10
3B
9
6 2Y
9
IRQPW
3A
8
7 GND
8
3Y
R116
NM
SYS_2_LS
DGND
STANDBY
LS_2_SYS
AMUTE
SYS+B
D111 NM
Q112
Q111
RN1910
RN4982
1
6
4
3
2
5
5
2
3
4
6
1
AGND
AGND
LSR
LSL
LSV
DVD/USB:+5.06 dBs
IEC
VDCONT5
IC122
VDD3
TC7MBL6126SFK
VD3
R126
1
14
1OE
VCC
0
2
13
A1
L121
2OE
2
1
D+
3
12
A2
B1
4
11
A3
B2
5 A4
10
3
4
D-
B3
6 4OE
9
NM
B4
R127
7 GND
8
3OE
0
USGND
IPL+
IPL-
R151
R152
4.7k
IPPW
CN601
IC151
1k
NM
8
1
SYS_2_IP
DIN1
STBY
7
2
10
IP_2_SYS
VCC
ROUT
RWCNVSS
6
3
9
BUS+
DIN2
5
4
8
BUS-
GND
7
HA12241FP
6
5
4
RFGND
ASENBO
3
Q132
2
LTC124EUB
1
IPR+
IPR-
TUNR
SYS+B
Q431
NM
AGND
TUNL
NM
VDD
R401
22k
RCK
R402
22k
RDSLK
R403
22k
RDT
R404
22k
RFGND
HSLK
TU3.3
2.2u
L452
D701
10u
TUNPDI
LDET
TUNPDO
D702
TUNPCK
C702
C701
CE1
CE2
D713
C704
SL
VA703
D714
VA704
C703
D715
D712
C705
C706
ILMGND
3
LSV
L1192
BU3
BUP
CTH1253-A
P1191
D1192
AUXV
CEK1344-A
AUXVG
RSX201L-30
Raychem 4A
D1193
>
LSVD8
RSX201L-30
CTH1253-A
GNDDDC
CTF1661-A
L1191
L1108
(15uH)
GNDDDC
L1141
OUTH2
R1141
10
(1/8W)
R1188
T0
2.2
8.01V
(1/8W)
R1187
C1185
0
3.3u/10
C1184
1.0u/35
GNDDDC
VCRL
VCRG
VCRR
AUXL
AUXG
AUXR
C607
100p/50
DGND
26
27
IP_2_SYS
RX
28
SYS_2_IP
TX
29
DPDT
DPDT
30
KYDT
KYDT
31
RWCLK
RWCLK
RWBUSY
32
RWBUSY
R623
220
SYS_2_LS
33
TXLS1
R624
34
LS_2_SYS
220
RXLS1
R625
NM
NC
35
NC
R626
NM
36
TELIN
TELIN
PCL
37
PCL
38
ASENBO
ASENBO
39
RWEMP
40
XRST
XRESET
R628
NM
41
IRQPW
IRQPW
R629
1k
STANDBY
42
STANDBY
R630
1k
43
AMUTE
AMUTE
R631
100k
44
RWCE
45
ACCPW
DPDT1
ACCPW
DPDT
46
VDCONT8
VDCONT8
RWCNVSS
47
IPPW
IPPW
RESET
MUTE
48
AMPPW
SYSMUTE
SYSPW
49
AMPPW
DGND
50
SYSPW
ACCPW
ACCPW
KYDT1
KYDT
PWCLK
RWCLK
RWBUSY
R651
RWBUSY
VDD
NM
DGND
VDD
R641
47k
IC641
NM
GND
DO
ROMDATA
5
4
TEST
DI
6
3
ROMLK
NC
SK
ROMCS
7
2
VCC
CS
8
1
ROM CORRECTION
R643
DGND
NM
L701
NM
DZ2S068C
1
R745
NM
DZ2S068C
4
220p/50
CTF1713
R746
220p/50
DZ2S068C
220p/50
EZJZ1V270RM
DZ2S068C
EZJZ1V270RM
220p/50
NM
DZ2S068C
USGND
USB5V
ILM+B
SWVDD
220p/50
NM
DGND
CN701
CKS6288
AUX:+2.19 dBs
B
CN1821
4
MS V
100
AUX V
R501
R510
75
100
R502
AUX VGND
R503
NM
NM
AV SELECTOR
501 - 600
SYS+B
1
2
VCC1
3
BIAS1
GND1
4
C527
NM
L1-1
5
C528
NM
L1-2
6
C529
NM
R1-1
I
7
C530
NM
R1-2
AN
VGND
C543
8
NM
L2-1
9
C544
NM
L2-2
10
VCC2
11
BIAS2
GND2
12
R521
22k
R524
22k
AG
DGND
X601
CSS1774
R607
15.0MHz
R6
100k
R608
C606
C605
10
100k
20p/50
20p/50
R6
10
10
99
NC
98
EJECT
NC
97
AVCC
96
VREF
95
SL
94
AVss
SYS u-COM
93
CSENS
92
601 - 700
NC
91
NC
IC601
90
KEYD
89
PEG753A
KEYAD
88
NC
87
NC
86
TESTIN
85
USBFLG
84
TUNPDO
83
NC
82
USBCTL
81
RDS-HSLK
80
RDS-DATA
79
RDS-LOCK
78
MODEL0
77
MODEL1
76
MODEL2
DG
RESET
VDD
CN721
NM
AUXV
22
FLPILM
21
CSENS
20
AUXL
19
AUXR
18
2
AUXG
17
D+
16
ILMCLR2
3
15
D-
14
ILMCLR1
13
USB5V
12
EJECT
11
DPDT
10
USGND
9
KYDT
8
USGND
7
ROT0
6
USGND
ILM+B
5
SWVDD
ROT1
4
SWVDD
3
ILMGND
ILMGND
2
DGND
1
DGND
ILMGND
ILMGND
DGND
NM
4
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