71
107P2 CM 25 GSIII
Repair Flow Chart (Continued)
D. Vertical Deflection Failure
check
7503
pin 12, 13
basic check
+13/-13V
Symptom :
one horizontal line
V_size is abnormal
too large/small (small)
check 7404
pin1,pin7 ramp
exist ?
check
+78V,
good?
replace
7503
No
Ok
Ok
check
3401,3402
No
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