Sony KP-46WT500 Service Manual page 267

CB BOARD SCHEMATIC DIAGRAM
1 | 2 | 3
TO F.BLOCK
A
F GND
B CRT DRIVE 1
TO F.BLOCK
12
I.C
CN7305
11
0P
— G1
:ONE TOUCH 10
9
G2
8
G2 1
G1
K
R7304
CN7304
560k C7305
7P 0.001
1/2W
R7301
2kV
WHT 10
B
B
:S-MICRO :FPRD
B
TO D:CN8022
SG7301
+200V 1
R7312
NC R7307
2
680k
100 1/2W :RC
1/2W
GND
3
NC 4 C7309
0.0047
—
NC F
5
C7304
HEATER(+)
6
0.0047
F
HEATER(-) 7
CN7303
C 7P
BLK
:S-MICRO
TDA6120Q/N2/S1
TO CG:CN7203 VIDEO OUT
1
+200V 1
NC
2
R7311
1.0k
GND 3 1 2 3 4 5
—
1/16W
:RN-CP
NC 4
C7303
NC 22p
5
CH:1608
HEATER(+)
6
R7306
HEATER(-) 7 1.5k R7313
1/16W 560
:RN-CP 1/16W
D7301
D
:CHIP
MA111
C7302
R7308
22p
100
CH:1608
1/16W
:CHIP
L7302
C7308
22
:LAV35
250V
—
R7314
C7313
CN7302 L7301 330
0.1
6P 1/16W
25V
:LB2016
:RN-CP
BLK F:1608
:S-MICRO
C7310
TO A:CN702 R7302 C7306
0.1
1.2k 2200
E
1/16W 16V 25V
BS 1
C7311
:CHIP F:1608
0.1
GND
2
25V
C7312 F:1608
B
3
100
16V
IK 4
OFFSET 5
—
+12V
6
R7315
820
R7303
1/16W
C7301 220
:RN-CP
0.01 1/16W
25V :CHIP
B
B:1608
F
R7310
5.6k
1/16W
:RN-CP
R7305
R7309
22
0 1/16W
—
:1608 :CHIP
R7319
2.2k
C7307
Q7301 1/16W
0.1 R7317
:CHIP
25V 1.5k 2SB709A
F:1608 1/16W PEAK
:RN-CP
G
Q7302
C7314
0.1 2SB709A
R7316
25V BUFFER
1.1k
F:1608
1/16W
:RN-CP
—
CB BOARD WAVEFORMS
1 2
1.9 Vp-p (H) 94.0 Vp-p (H)
| 4 | 5 | 6 |
CN7309
G1
4
G1
5
R7330
6 1k
H SG7303
1/2W
7
DSP-301N
H
CN7308
0P
:FASTON
SG7302
DSP-501N
CRT_GND
TP7301
KB
TERMINAL
CRT_GND
L7303
R7328
4.7k :LAV35
CN7307
0P
:FASTON
IC7301
2
R7326
220
1/2W
6 7 8 9 10 11 12 13
R7329
100
C7315 R7322 1/2W
4700p 22k
500V 3W
E :RS
D7303 D7304
1SS83TD 1SS83TD
PROT PROT
C7320
+12V 0.01
50V
D7302
MA111
R7321
180k
Q7304
1/16W
2SK3018
:RN-CP
IK BUFFER
R7318 R7320
3.3k 330k
1/16W 1/16W R7325
S
:RN-CP :RN-CP 1.5k
1/16W
:CHIP
R7323
3.3k
C7317
1/16W
2200p
:CHIP
B:1608
Q7303
2SD601A
BUFFER
A-1302-811-A<RA6>CB
CB BOARD IC VOLTAGE LIST
IC7301
PIN VOLT
1 2.1
2 2.9
3 1.6
4 2.9
5 2.5
6 12.0
7 7.3
CB
7 |
[B CRT DRIVE]
COMPONENT SIDE
CB
[B CRT DRIVE]
CONDUCTOR SIDE
CB BOARD TRANSISTOR LIST
B C
PIN VOLT
Q7301 3.9 GND
8 GND
Q7302 1.7 GND
9 N/C
Q7303 2.4 12.0
10 200.0
11 N/C
G D
12 161.8
Q7304 7.3 12.0
13 144.5
All voltages are in V.
All voltages are in V.
— 56 —
1 2
A
B
C
D
1 2
A
B
C
E
3.0
2.4
D
2.9
S
6.0
KP-46WT500
3 4
3 4