Panasonic SA-HT640WPL Service Manual page 28

SA-HT640WPL
SCHEMATIC DIAGRAM-16
OPTICAL PICKUP UNIT CIRCUIT
H
GND L4
1
J0JBC0000105
VCC
2
GND L3
C8
3
TO
J0JBC0000105
0.1
GND
HFM PCB 4
OUT
5
GND
6
G
GND
1
TB
2
TA
3
TC
4
TD
5
F
FE1
6
FE2
7
IM
8
RF
9
TO
GND
LDU PCB 10
VREF
11
VCC
12
SUB2
13
SUB1
14
SW
15
LD (CD)
16
LD (DVD)
17 C1
E
LDGND 0.1
18
D
C5 C6
22P 22P
C
B
A
1 2
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:+B SIGNAL LINE : CD-DA(AUDIO /VIDEO) SIGNAL LINE
T+
F+
TO ACT F-
T-
HFM
TA
TB
TD
TC
FE2
FE1
R2
GND (IM)
0
RF
VREF2(RF-)
PIN (DVD)
LD (CD)
R4 C2
LD GND
0 0.1
LD (DVD)
GND (OEIC)
VREF1
VCC
SUB2
SUB1
PIN(CD)
SUBSEL
R1
VR1 GND (IM)
C3 0
6.8K
0.1
R3
0
R5
0
R6
0
R7
6.8K
VR2
6.8K
L2
J0JCC0000307
C7
0.1
C4
L1
0.22
J0JBC0000105
3 4 5
26
25
24
23
22
21
20
19
18
17
16
A
15
TO
14
DVD MODULE CIRCUIT
13
(FP8501) ON
12
SCHEMATIC
11
DIAGRAM-4
10
9
8
7
6
5
4
3
2
1
6 7 8
28
SA-HT640WPL OPTICAL PICKUP UNIT CIRCUIT
9 10 1 1 12 13