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3
DP23/23G/24
High Voltage limiter circuit operation check.
1. Turn off TV and connect jig as shown in Figure 2. Adjust
jig fully counter-clockwise for minimum resistance.
2. Set the AC input to 120V AC and turn on TV.
3. Confirm test pattern on CRT is a usable picture, then
slowly adjust jig until the picture disappears and TV shuts
down.
4. When the limiter circuit is operating properly, High
Voltage will be less than 30.5 kV at 1.4mA when TV shuts
down.
5. Turn off set immediately after checking circuit operation.
6. Unplug set for one minute to reset shutdown circuit.
Remove jig and voltmeter.
TECHNICAL CAUTIONS
(TH01)
WHITE side
GND side
TESTER
C901
R901
EF901
EF901
F901
KP01
PA
1
2
X901
R903
C981
R980
AC CORD POLARITY
This check is based on the UL standard. Use the jigs specified by the production technology section. The GND side (wider
blade) of the AC power cord should be connected to K9Y1
Содержание 43FWX20B
Страница 34: ...34 DP23 23G 24 CONTROL P W B DP23 DP23G BACK TO ADJUSTMENTS ...
Страница 72: ...PRINTED CIRCUIT BOARD Control P W B Pattern Side 72 DP23 23G 24 ...
Страница 73: ...DP23 23G 24 PRINTED CIRCUIT BOARD Control P W B Part Side 73 ...
Страница 74: ...DP23 23G 24 BLOCK DIAGRAM DP23 DP23G 74 ...
Страница 75: ...DP23 23G 24 BLOCK DIAGRAM DP24 75 ...
Страница 76: ...DP23 23G 24 WIRING DIAGRAM DP23 DP23G 76 ...
Страница 77: ...DP23 23G 24 WIRING DIAGRAM DP24 77 ...
Страница 83: ...DP23 23G 24 83 DP24 FINAL WIRING DRAWING ...
Страница 125: ...125 DP23 23G 24 ...
Страница 129: ...129 DP23 23G 24 ...
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