Panasonic SL-VP48, Service Manual

Page: 54 / 72

27 28
OPTICAL PICKUP
6
Vref.
TBAL FBAL
TE
16
Vref.
Vref.
1
Vref.
Vref.
Ech
VCBA
Fch
Vref.
23
21
22
/OPEN
E
AN8839NSB-E1
IC101
SERVO AMP
Ach
VCBA
Bch
A
B
Vref.
Vref.
4
Vref.
Vref.
Vref.
Vref.
5
13
LDON
RF
DET.
8 9
+B7
Q201
7
26
OFTR
DET.
10
+B7
SUBTRA-
CTOR
Vref.
RFENV
NRFDET
14
20
3
+B7
25
24
FE
15
12
BDO
17
OFTR
19
18
BDO DET.
11
3 TENV
+B7
MUTE
VREF
ENV
OFTR
BDO
/RFDET
FE IN
FE OUT
Vcc
ENV OFF
VREF
NC
NC
TE
OUT
Vref.
TE
IN
PDOWN FBAL
F
2
Vref.
E E
F F
TBAL
PDF
PDE
PDB
PDA
LD
LPD
RF RF IN CS BRT CEA
C
A
D
D
B
C
LDON
FO1
6
8
RO1
H
BRIDGE
PRE
DRIVER
LOGIC
RI1
FO2
11
9
RO1
H
BRIDGE
PRE
DRIVER
LOGIC
FI2
FO3
22
24
RO3
H
BRIDGE
PRE
DRIVER
LOGIC
FO4
27
25
RO4
H
BRIDGE
PRE
DRIVER
LOGIC
5
TRAVERSE
MOTOR
SPINDLE
MOTOR
M
M
F+
F-
T+
T-
29
30
AN8746SA-E1
IC401
COIL & MOTOR DRIVE
4 FI1
13
TR+
FO-
PDO
WN
TR-
FO+
SUBTRA-
CTOR
7
10
23
26
PGND1
PGND2
PGND3
PGND4
RI2
12
FI3
RI3
20
21
FI4
RI4
28
1
PVcc1 VM1
MONITOR
3
MON
2
Vcc
+B6
PVcc2
+B3
+B3
16
PVcc3
17
+B3
PVcc4
+B3
32
VG
LIMITTER
GND
14
RESET TSD
VBG
18
VGO
31
PC
AC
MON
TRV+
TRV-
SPPOL
SPOUT
VG1
19
VG
+B6
SEMICONDUCTOR
LASER
PHOTO DETECTOR
FOCUS COIL
TRACKING COIL
LASER
POWER
DRIVE
VREF
RF
GND