Sony VPH-G90U Service Manual page 457

DF (1/3) BOARD
R1 R2
12k 100k
:RN-CP :RN-CP
R4
C1
3.3k
47
:RN-CP
16V
R12
51k
:RN-CP
C5
C3
47 47
16V 16V
28 27 26 25
1 2 3 4
R29 C8
100 0.033
:RN-CP :MPS
C7
TP3
47
V.TRIG R41 R39
16V
1 1k 1k
:RN-CP :RN-CP
V.TRIGGER
C12
100p
CH:CHIP
V06C
REG PROTECTOR 1
IC8
LM2940CT
+6V
5V REG
I
+6V
C15
C14
100 0.1 6.6
16V B:CHIP
V06C
REG PROTECTOR 2
IC9
LM2990CT
-5V REG
I
-7.2
C20
C19 100
0.1 16V
-6V B:CHIP
VPH-G90J/G90E/G90U/G90M
A B
R3
22k
:RN-CP
Q1
FMW5
V SIN SW 1 4 1
5 2
0
3
R8 -0.3
-0.3
100
C6 :RN-CP R13
R14
1 1.2 2.2k
100
:RN-CP
:RN-CP
24 23 22 21 20 19 18 17 16 15 -5V
IC3
CXA1470AS
V WAVE FORM
R26
+5V
10k
:RN-CP
R27
C26
0.01 R23 100
F:CHIP 2.2k :RN-CP
5 6 7 8 9 10 11 12 13 14
IC5(1/2) :RN-CP
µPC4558G2
0 0.3
R33
0 0 0.6 0 V SIN BUFF2 C11 0.2
100
22
8 3
:RN-CP
16V
2
2
1 5
0 3
R31
C10 10k R36 0 R34
0 100
0.1 :RN-CP 0 4 4.7k 4 1
:RN-CP
:MPS :RN-CP
2 3
Q5
FMS1
C9 R35 C27 V SIN SW 2
0.015 4.7k 0.01
:MPS :RN-CP F:CHIP
0.5
R50
2.2k 6
:RN-CP 7
5
0.5 IC5(2/2)
µPC4558G2
V SIN BUFF2
D1
+5V
5
O
G C16
47
16V
C18
D2
47
16V
-5V
O
G
-5
C
DF (1/3) DF (1/3)
+5V
R6
2.2k
4 TP1
:RN-CP
GND
R9
100
:RN-CP C2
22
16V
0 0.2
Q3
2SA1162
V SIN BUFF3 C28
0.01
F:CHIP
R17
150k
:RN-CP
Q4
2SC2712
V SIN BUFF4
0 -0.3
R30
5
2.2k
:RN-CP
R47
4.7k
:RN-CP
5
7 IC2(2/2)
0
6 µPC4558G2
0 V SIN BUFF1
0
R48
10k
:RN-CP
R49
10k
:RN-CP
-1.1
IC20(2/2)
µPC814G2
V SAW SHIFT
R56
6.8k
:RN-CP
Q6
DTC144EKA
V.TRIG BUFF
0
10-95 10-95
D E
-5V
6
R10
47k R11 C30 C31
-11.3 -12V
:RN-CP 1 R7
2.2k 0.01 0.01
100 R15 :RN-CP F:CHIP F:CHIP
C4
:RN-CP 10k
0.033
Q2 0 :MPS :RN-CP
S
2SK523 R16 IC2(1/2)
V.SAW 10k R19 0 8 µPC4558G2
0.5
:RN-CP 4.7k 3 V SIN BUFF1
0 4 6 :RN-CP 1
2 0.9 7 2
1 5 0
IC1(2/2)
R18 3 µPC814G2 0 0 4
100k IC1(1/2) V SAW OSC
:RN-CP R20 0 8 µPC814G2
10k V SAW OSC 0 R21
:RN-CP 4.7k
:RN-CP
C29
0.01 R43 R24
F:CHIP 4.7k 4.7k
R44 :RN-CP 0 :RN-CP 0
100k R42 R28
:RN-CP 0 12k 4.7
:RN-CP :RN-CP 4
6 7 2 IC4(1/2)
1 µPC4558G2
5 -2 3 V SAW CONT
R45 0 IC4(2/2) (0)
22k 8
µPC4558G2
-2
:RN-CP
V SAW CONT
(-1.8)
R38
R46 2.2k
C33
2.2k :RN-CP F:CHIP
0.01
:RN-CP F:CHIP
C34
0.01
F:CHIP
R60 R57
-12V
C40 10k 3.9k
+5V
4.7 :RN-CP :RN-CP
BP IC20(1/2)
µPC814G2
V SAW SHIFT
5.6
0
6 4 0 0
R64
7 0 2
47k
5 1 0 :RN-CP
16 15 14 13 12 11 10 9
3
R62
VDD Y X X1 X0 A B C
0
100 8 R58
:RN-CP 47k
IC11
:RN-CP
PC74HC4053D-T
V.SAW IC
Y1 Y0 Z1 Z Z0 VEE VSS
R63 C35 C36
0.01
10k C38 C39 0.01
1 2 3 4 5 6 7 8
:RN-CP F:CHIP 1 1 F:CHIP
C37
0.01
F:CHIP
R65
+12V
R55 15 14 10
100k :RN-CP
:CHIP T1 T2
12 10
A Q C41
C22 100
11 16V
0.0022 B
:MPS
13 CD Q 9
0 11.8
16 1 2
VCC T1 T2 IC10(2/2)
4 6
A Q HD14538BFP
11.9
F-V CONV
0.1
5
B
11.7
3 7
CD Q
GND
R66
IC10(1/2) 4.7k R67
(V WAVE GEN.)
8 HD14538BFP :RN-CP 4.7k
F-V CONV :RN-CP
F G
1
V.SIN.T
V.SIN.B
-5V
V.SIN
V.PARA
+5V
2
V.SIZE FINE
V.SIZE COARSE
TP2
V.SAW
V.SAW
-12V
+12V
3
C32
0.01
-5V
4
DF
(1/3)
B-%SX1640<AEP>-DF
5
H