Sony RA-3B Service Manual page 38

BLOCK DIAGRAM (8 OF 8)
(
POWER SUPPLY
G
H/V OUT
CN651
RH 10
RV 9
GH 7
MUTE
TO A
Q1508
M
BOARD
CN402
GV 5
BH 3
BV 1
MUTE
Q1501
CN1502
MUTE DRIVE
REGI MUTE 1
Q1509
V BLK 2
IC1507
(2/2)
5
6
D FOCUS 3
ABL 4
TO A
IC502(1/4)
I L
BOARD
CN801 1
HV PROT 5
PIN 6
HP 8
+135V
HDRIVE
HD 8
Q501
)
IC1502
SUB DY-DRIVE
CN501
CN1503
15 V DRIVE (+) 6
18 1 HR OUT
16 4 HR RET
J
14
11 2 VR OUT V DRIVE (-) 5
N
13 3 VR RET
6
TO A
9 1 HG OUT
BOARD VP 4
3 7
4 HG RET
CN202
CN605
IC1506 RELAY 4
CN1504
SUB DY-DRIVE
G
15 OVP 8
18 2 VG OUT
TO A
OCP 7
3 VG RET BOARD
16
CN681
14
11 1 HB OUT
13 4 HB RET
6
9 2 VB OUT
3 7 3 VB RET
CN1505
IC1501(2/2)
V ZOOMING AMP
IC1504
(1/2)
BUFFER BUFFER
20 2
R/S
Q1511 Q1503 21 1
18
3
11
9
7
10
24
23
IC1504
22
(2/2)
27
6
25 7 B/S
D1504
29 5
BUFFER
Q1502 T504 H(+)
FBT
HV
HV
D529
-12V 3 MV
MV
D533
+12V
7 200V
4
D534
11
D522
6
6 2
7
+135V 10
1
D532
8
9
D528
T502
PMT
9
14 PIN AMP
5
8
Q503
IC502(2/4)
6
5 11 IC502
2
13 4
4 (4/4)
10
T501
IC502
HDT
(3/4)
H OUT
3 4
Q502
1 6
IC1501(1/2)
V ZOOMING AMP
13
12
14
7
8
6
LATCH SWITCH
Q654, 655 Q658
V-SEP
Q1505
RELAY DRIVE
Q652
T602
7 8
1 7 1
+135V 5 6 3
D672
IC655
IC651 CONVERTER
+5V REG 4
D667
STBY
O I 9 6
+5V
PROTECT
5
8
BACK UP
Q651
D662
Q653
7 2 SWITCHING
5 3 IC601
LIMIT 1 4
Q656 8
D666
T603 PRT
T601
PROTECT
9 5
D671 IC654
Q657
AUDIO(+) 1
+135V REG
AUDIO(-)
D654 D657
D670
2 11 1
(1/2)
+11V
7
D655
D656
F652 D654 12
+15V
(2/2)
13
F651
-15V
IC653
+5V REG
D660
+5V O I 14
IC652
-5V REG
D659
-5V O I
D531
OFF.MUTE G2-MUTE
+12V
Q506 Q507
L504
HLC
3
1
— 38 —
IC1509
V OUT
CN1506
7
5 1 RV DEF
1
2 RV MID
3
3 RV RET
CN1507
1 GV DEF
2 GV MID
3 GV RET
CN1508
1 BV DEF
2 BV MID
Q601
3 BV RET
RY601
Q602
CN601
D601 602
2 AC (L)
LINEFILTER
L601 1 AC (W)
ACIN
D603
4
+135V
TO
MV FOCUS
PACK
CN503
3 200V
TO CG
7 H(+)
O
9 R/S BOARD
CN734
10 B/S
6 H(-)
IC1505 HV TO
6
HV
2
7 CN1501
1
5 BLOCK
3
3 HV, REG
CN507
TO
3 2 G2
FOCUS
1 DF AMP
2 1 DF PACK
Q1505, 1506
IC1507 D525,
(1/2)
526
CN506
1 R-H(+)
4 R-H(-)
CN505
1 G-H(+)
4 G-H(-)
CN504
1 B-H(+)
4 B-H(-)
KP- 43T90 / 48V90 / 53V90 / 61V90
DY (B)
V. DEF
DY
V. MID (V)
V. RET
SUB
DY
H(+)
DY
H(MID) (H)
H(-)
DY
(G)
SAME AS
DBOVE
DY
(B)
SAME AS
DBOVE