25" Primary Power Circuit - Zenith TVBR1342Z Service Manual

1 2
G
6.3A 125V 2.5A 125V
CAUTION: FOR CONTINUED PROTECTION AGAINST FIRE HAZARD,
REPLACE ONLY WITH THE SAME TYPE FUSE
5A 125V(ICP503) ,6.3A 125V(F501) ,2.5A 125V(F502)
F
5A 125V(ICP504), 4A 125V(ICP502) AND 2.5A 125V(ICP505)
DEGAUSS COIL
E
This schematic
applies to the
following model
only:
TVBR2542
D
AC120V_60Hz
C
13 REC/PB
5V 0.1ms/div
B
14 REC/PB
0.5V 5µs/div
A
CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE SYMBOL
REPLACE ONLY WITH PART NUMBERS SPECIFIED.

25" Primary Power Circuit

3 4
RELAY DRIVE
Q504
D516 2SC1815Y
1SS133
0.2
0.6
0
RY501
SDT-S-112LMR
2 1
3
4
L503
8R250009 CP502
TV-50P-02-A1
1
2
TH501
L501_1
PTH451A3R0Q11 SS24V-15045
34
12
6.3A 125V
F501
6.3A125V
51MS
FH502 FH501
CD501
EYF-52BC EYF-52BC
0R614908
BLACK
BLACK
WHITE
WHITE
CP501
THL-P03P-B1
FEED BACK
IC506
C549 R552
TLP621(GR)
10.1
0.033 uF 10K 7.3
C554
0.0022 uF 6.3 6.4
6.0
FEED BACK
SWITCHING
Q507
2SC945
SWITHING
Q502
2SA1371
107.8
109.7
CAUTION:
100.5
R508
0
5.2 16.4
1M
0.7
0
4.2
5VSWITCHING SWITHING
Q513 Q512
DTC114ES 2SC2909
.
5 6
R501
W810
2.2 7W
D501
2
GBL06L-6177
4 1
W802
3
W809
T501
81350534
POWER REG. IC
DC IN
132.5
8
IC502 STR-G6624
O.S.C
DRIVE
144.5
REG. T.S.D 6
START O.V.P LATCH
5
1 2 3 4 5
170.2 0 0 17.9 2.5
170.2
B505 4
BL02RN2-R62T4 COL
ADJ
25.0
2
GND
0
1
13 14
D506 R502
RMPG06J
4.7 1/2W
C509
0.027 uF R543
D517
1SS133 680 1/4W
D521
1SS133
HS502
763WAA0111
GND1
IS THE LIVE CONNECTION
5-19 P/L = See parts list for part description
7 8
CP505
005P-2100
C516
500V 470P pF
R517_1
D505
21DQ09N 12 W
D509
21DQ09N
1
CP506
W858
005P-2100
R512
B504 D503
W804
BL01RN1-A63
RU2AM 27K 1W
C517
2KV 820P pF
W859
D511 R511
W855
10ELS2N 10K
C518
pF
500V 470P
SB 9.8 D514
16
21DQ09N
SG 0
15 D512
21DQ09N
111V 117.4
14
HG 0
13
5V 9.8
12
W848
LG 0
11
D508
W857
13.1
10
12V
21DQ09N
13.3 C527
9
12V
pF
500V 470P
D519
W815
21DQ09N
C519
500V 470P pF
D530
W856
D525 1SS133
D526
R507
1K
PROV = Provisional
9 10
DEGAUSS_H
+B
FROM/TO DEFLECTION
+B
SOUND+B
TV.POWER_H
TO SHEET 20
DEGAUSS_H
P.CON+111V
POWER_FAIL
AT+111V
SOUND+B
SOUND_GND
AT+30V
FROM/TO DEFLECTION
GND TO SHEET 20
POWER_FAIL
UNREG+8V
TO POWER
CP810_1 (CD810)
8283_0812_00_000
GND 1
GND 2
AT+12V 3
MOTOR_GND 4
UNREG+8V
UNREG+8V 5
UNREG+8V 6
AT+13V
AT+13V 7
AT+30V
AT+30V 8
1SS133
UNREG+8V
1SS133
SOUND+B
TVBR2000 SHEET 19