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5-1-16 No Video
Check signal cable and connection.
IC101 Pins 2, 6 and 11 (17": IC104,
Pin 5, 8, 10) inputs are right?
Yes
IC101 Pins 29, 32 and 35
(17": IC104, Pin 25, 28, 30) outputs
are right?
Yes
IC102 Pins 4, 6 and 14 (17": IC105,
Pin 1, 3, 5) outputs are right?
Yes
Cathode DC levels are right?
Yes
G2 voltage is right?
Yes
Change CRT.
Done.
PG17**/PG19**/PG21**
No
Check CN101 and BNC B'D IC1.
No
2
Check I
C bus and +12 V line.
No
Check +12 V line.
Check and replace IC102 (17": IC105).
Check +80 V line.
No
Check and replace IC101 and IC104
(17": IC104).
No
Check G2 wire, CRT Socket board,
and FBT.
5 Troubleshooting
5-9
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