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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

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