JVC AV-56WP74 Service Manual page 70

CIRCUIT DIAGRAMS [RECEIVER UNIT]
MAIN PWB CIRCUIT DIAGRAM (1/12) SHEET 1
VOLTAGE (V)
PIN NO.
Q1101
E 0
C 4.0
B 0
MAIN
Q1102
E 5.2
U/V FRONTEND
C 0
B 4.6
Q1103
E 4.3
C 9.1
B 5.2
R1119
10K
TU1101
GND
1 4.0
2 3.0
3 2.4
4 4.6 D1101
CN1E11 OPEN
OPEN
5 4.5
GND
6 0
D1102
7 5.0 OPEN
8 0 CN10E1
OPEN GND
9 31.6
C1101
10 0 OPEN
CN10E2
11 0
OPEN
12 0
GND
CN1E21
13 0
QUB132-26FXPP
14 2.5
15 0
16 4.6 CN10E3
OPEN
17 4.0
18 2.5
19 0
20 0
21 0
TU1101-18
[H]
GND
1.8Vp-p
9V
5V
SHEET 12
21V
BS_5V
AUDIO_L
SHEET 7
AUDIO_R
SCL0
SDA0
SHEET 5
HP_L
HP_R
NOT USE
HP_VOL
SHEET 5
HP_MU
LOUT_US
SHEET 11
ROUT_US
NOT USE
BS_GEMV
SHEET 2
TV_V1
TV_L1
SHEET 5
TV_R1
C/N_AFT1
SHEET 10
AFT2
SHEET 12
12V
SHEET 10
BS_POW
SHEET 1
GRON
SHEET 2 S_MU
SCL2
SHEET 10
SDA2
TU_5V
TU_POW
SHEET 12
TU_9V
14V
R1134
TU1101
QAU0303-001 TU1101 10K
R1135
Q1103
27K
Q1102 *1
*2
C/N_AFT1
GND
R1105
GND GND 10K
GND
R1104
OPEN
C1106
OPEN
TV_L1
TV_R1
C1107
OPEN
GND TV_V1
C1112 C1113
.01 .01
R1101 R1123 OPEN
R1122
OPEN C1117
OPEN
OPEN
GND
L1101 OPEN
32V
L1102 0
R1102 220 QRN143J-0R0X
R1103 220
C1102 C1103 C1104
470 /16 10 /50 OPEN
QETN1CM-477Z
QETN1HM-106Z
Q1101
2SD601A/QR/-X
GND
R1133 0
C1110 C1109
OPEN OPEN
GND
IC1101
OPEN
D1103 D1104
OPEN OPEN
GND GND
9V
5V
21V
Y1911
0
BS_5V
Y1914
AUDIO_L
0
AUDIO_R
R1911
OPEN
SCL0
SDA0 R1912
OPEN
HP_L
R1910
HP_R OPEN
R1913
OPEN
HP_VOL
HP_MU
R1914
OPEN
LOUT_US
ROUT_US
C1911
OPEN
GND
BS_GEMV
Y1917
0
Y1916
TV_V1 0
TV_L1
R1915 Q1913
OPEN OPEN
TV_R1
C/N_AFT1 R1916
OPEN
AFT2
R1919
Q1914
OPEN
12V
OPEN
R1917
BS_POW OPEN
GRON
R1918 Y1913
S_MU OPEN OPEN
SCL2
C1912
OPEN
SDA2
GND
IC1911
OPEN
TU_5V
TU_POW C1915
OPEN
TU_9V
Y1915 C1914
D1911 C1916
OPEN OPEN
14V OPEN OPEN
C1913
OPEN
GND
No.52105
AV-48WP74 AV-48WP74
AV-56WP74 AV-56WP74
SHEET 11
SHEET 12
SHEET 12
NOT USE SHEET 5
RECEIVER
CN1005
QGB1505J1-15
GND
CN1006
GND
TUNER TUNER
2-7 2-8
RECEIVER
QGB1505J1-35 CN1006
BS_GEMV
R1118
OPEN
-M2
No.52105