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4. NO VIDEO
NO VIDEO
YES
CHECK
SCREEN CONTROL
CLOCKWISE
YES
CHECK
U201 PIN 5, 6, 7
SIGNAL LEVEL
YES
CHECK
U201 PIN 18, 19, 20
SIGNAL LEVEL
YES
CHECK
U204 PIN 6, 7, 9
SIGNAL LEVEL
YES
CHECK
CATHODE VIDEO
LEVEL
YES
PROBLEM IN CRT
NO
NO
PROBLEM IN U201
NO
U201 12V VOLTAGE
PROBLEM IN U204
NO
12V, 80V VOLTAGE
NO
R255, R235, R215
6-5
REFER TO
"NO RASTER"
ON PAGE
TROUBLE IN
R/G/B SIGNAL,
SIGNAL CABLE
CLAMP (PIN 23)
PROBLEM IN
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