Zenith H27G48S Service Manual - Page 44

Tilt Circuit

Page 44 highlights

1 2 G F E D C SHT. 6-10 SHT. 6-10 B Tilt Circuit 3 4 5 6 7 8 9 10 IC 4 5 0 0 0 ISA16 45 00 B LB 1645N C NTILT 366- 921B 11 TO TILT 2 C OIL 3 C4500 0.1 50V C4501 0.01 16 V + 5V TNR R4 5 0 3 47K + 5V TNR R4 5 0 1 1K R4 5 0 4 C B 10 K E Q4 50 1 0 TR3 19 8 0 9 A A KTC 3198 R4 5 0 2 10 0 R4 5 0 5 10 0 OUT2 10 9 PROTEC TION 8 Vc c 2 7 Vc c 1 6 SW2 5 SW1 4 NC 3 PROTEC TION 2 OUT1 1 GND + 12 TLT 1 R4 5 0 0 15 1/ 2W C4502 47µ F 50V C B E R4 5 0 6 10 K Q4 5 00 0 TR3 19 8 0 9 A A KTC 3198 R4 5 0 7 12 K D4 5 0 0 0DS113379B A 1SS13 3 C4503 4.7µ F 50V + 12 TLT R4 5 0 8 4.7K C B R4 5 0 9 1K E Q4 50 2 0TR319809AA TILT1 KTC 3198 R4 5 10 PROV + 5V TNR R4 5 11 22K TILT2 A 3828VD0171E CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE LETTER "X" IN THEIR COMPONENTS DESIGNATORS. REPLACE ONLY WITH PART NUMBERS SPECIFIED. 6-7 ALL COMPONENTS WITH "M" IN THE DESIGNATOR ARE A SURFACE MOUNTED COMPONENT. FCS 48 SERIES SHEET 7

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Tilt Circuit
1
2
3
4
5
6
7
8
9
10
G
D
C
B
E
F
A
6-7
CRITICAL SAFETY COMPONENTS ARE IDENTIFIED BY THE LETTER “X” IN THEIR
COMPONENTS DESIGNATORS. REPLACE ONLY WITH PART NUMBERS SPECIFIED.
ALL COMPONENTS WITH “M” IN THE DESIGNATOR
ARE A SURFACE MOUNTED COMPONENT.
3828VD0171E
FCS 48 SERIES
SHEET 7
TILT2
TILT1
+ 12
TLT
+ 12
TLT
+5V
TNR
+5V
TNR
+5V
TNR
PROTEC TION
NC
SW1
SW2
Vcc1
Vcc2
OUT2
OUT1
PROTEC TION
GND
7
8
6
5
3
4
2
1
9
10
IC4500
LB1645N
1
0ISA164500B
C4502
50V
47μF
Q4500
KTC3198
E
B
C
0TR319809AA
C4503
50V
4.7μF
D4500
1SS133
0DS113379BA
Q4501
KTC3198
E
B
C
0TR319809AA
R4501
1K
R4505
100
1
2
3
CNTILT
1
366- 921B
C4500
50V
0.1
C4501
16V
0.01
R4507
12K
R4506
10K
R4504
10K
R4502
100
Q4502
KTC3198
E
B
C
0TR319809AA
R4508
4.7K
R4509
1K
R4510
PROV
R4511
22K
R4503
47K
R4500
1/ 2W
15
TO TILT
C OIL
SHT. 6-10
SHT. 6-10