14GT15 14GT20
14GT15 14GT20
14GT15 14GT20
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TROUBLE SHOOTING TABLE<br />
<strong>14GT15</strong><br />
<strong>14GT20</strong><br />
NO RASTER<br />
Check F701.<br />
Blown out.<br />
Replace the fuse.<br />
Check T701 pin (7) voltage<br />
(Approx. 310V at 220V AC)<br />
The fuse is again blown out.<br />
Check R701, R707 and<br />
D709.<br />
Check IC701, D701,C707<br />
and D710.<br />
Check Secondary Main+B<br />
(Pin (17) of T701<br />
voltage:Approx. 115V)<br />
Check D758, IC702 and<br />
IC753.<br />
Check CRT connector<br />
K1-K5 bias.<br />
D1001 (Power LED Green)<br />
turns on.<br />
D1001 (Power LED Red)<br />
turns on or turns ON/OFF.<br />
Check R618 and R615.<br />
Check<br />
C878.<br />
Check<br />
IC801.<br />
Checking the<br />
protector circuit.<br />
Does horizontal circuit<br />
oscillate ?<br />
Check IC751 and IC801.<br />
27