Sony VPH-G90U Service Manual page 473

PA (2/2) BOARD
CN88
5P
WHT
:S-MICRO
TP600
+200V(HV)
+200V(HV) 1
+200V(HV) 2
+200V(HV) 3
NC 4
+25V 5
TO M BOARD(2/2)
CN531
TP601
GND(HV)
ABL1
ABL2
L500
47µH
+12V.C
HVDRV
C500
100
16V
GND.C
PA BOARD WAVEFORMS
1 2 3
3.8 V p-p (V) 875.0 V p-p (H) 233.0 V p-p (H)
VPH-G90J/G90E/G90U/G90M
A B
L600
22µH
C600 C601 C602 C603
820 820 820 820
250V 250V 250V 250V
C604
0.1
:MPS
+25V
R500
560
2W
:RS
D500
1SS119
PROT.
+12V
IC500
NJM78L12A-T3
+12V REG.
1 PH500 8 Q500
2SC2785TP
TLP558
HVD.BUFFER
17.6 12 R501 HVD.ISOLAT.
1k
C501
I O
2
220 7
G
R502
35V
1k
C502 C503 3
6
100
100
35V 25V 6
(5.9)
4 5
C504 C505
0.01 22
:MPS 25V
C
PA (2/2) PA (2/2)
+200V
1 18 1 18 1 18
2 17 2 17 2 17
3 16 3 16 3 16
4 13 4 13 4 13
5 12 5 12 5 12
11 11 11
14 10 14 10 14 10
L601 L602 L603
15 9 15 9 15 9
420µH 420µH 420µH
6 7 6 7 6 7
R614 R615 R616 R617
0.1 0.1 0.1 0.1
1/2W 1/2W 1/2W 1/2W
D600 D603
D606
V06C V06C Q601 Q602
Q600 V06C
SPEED UP SPEED UP 2SK2349-CB 2SK2349-CB
2SK2349-CB SPEED UP
-3228 -3225
HV.CONV. HV.CONV. HV.CONV.
0.5 0.5 0.5
R600 R602 R604
D601 D604 D607
39 39 39
RD20ES S RD20ES S RD20ES
2W 2W 2W
PROT. PROT. PROT.
:RS :RS :RS
R601 R603
D602 D605 D608
1k RD20ES C605 1k RD20ES C606 R605 RD20ES
1W PROT. 0.1 1W PROT. 0.1 1k PROT.
:RS :MPS :RS :MPS 1W
:RS
FB600 FB601 FB602 FB603
R506
10
1W
:RS
R505
Q503 Q505
2.7k
2SC3421-Y 24 2SC3421-Y
1W
PRE-DRIVE PRE-DRIVE
:RS
R507
3 47
9
(9.4)
9.6
9
(9.9)
(9.4)
R503 R508
1k 47
Q504
2SA1358-Y
9
PRE-DRIVE
C506 (9.4)
1000p
5.6
:B
C508
0.4 Q502 0.01
(0.3) 2SC2785TP C507 :B
HVD.AMP. 100
R504
Q501 35V
1k
2SA1175TP
HVD.BUFFER
10-111 10-111
D E
1 18
2 17
3 16
4 13
5 12
11
14 10
L604
15 9
420µH
6 7
R618 R619
0.1 0.1
1/2W 1/2W
R606 R607 R608 R609 R610
15 15 15 15 15
3W 3W 3W 3W 3W
:RS :RS :RS :RS :RS
-3228
L605
D609 D610
3.3µH 3.3µH
C607 C608 DD82RC DD82RC
0.016 0.016
S DUMPER DUMPER
2kV 2kV
:PP :PP
C609
0.022
630V
:PT
FB604 FB605
C610
C611
1.5 1.5
400V 400V
:PP :PP
Q507
24 2SC3421-Y 24
PRE-DRIVE
9
(9.4)
9.6 9.6
(9.9) R509 (9.9)
47
Q506 Q508
2SA1358-Y 2SA1358-Y
PRE-DRIVE PRE-DRIVE
C509
0.01
:B
PA (2/2)
(HV OUT)
F G
1
CN89
8P
2 :LARGE
1 FBTHOT1
FBTHOT1
2
3 NC
4 NC
5 ABL1
2
6 ABL1
COOL1
7
8 GND(HV)
L606
TO PB BOARD
FBT
CN90
8P
:LARGE
1 FBTHOT2
2 FBTHOT2
3 NC
4 NC
ABL2
5
6 ABL2
7 COOL2
8 GND(HV)
TO PB BOARD
FBT
R612
4.7k
1/2W
:RN
3
C612
0.1
200V
:PP
R613
4.7k
1/2W
:RN
CN91
C613
3P
0.1
YEL
200V
:PP :S-MICRO
1 GND(HV)
2 GND(HV)
3 GND(HV)
TO PB BOARD
FBT
4
B-%SX1640<AEP>-PA-2
5
H