Philips V40 109B6 - Page 78

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109B6 CRT
Repair Flow Chart (Continued)
78
C. Horizontal deflection
output repair flow:
1. Symptom:
without
H-deflection
Check HDRB
7617 base
Check HDRB
7515 base
Check B+DRB
7501 Pin6
Refer 7501 check list
or replace 7503
2. Symptom:
East/West corr.
Refer 7501
check list
3. Symptom:
H-linearity
(full freq. Range)
Enter factor
ymode
check linearity data
in EEPROM
Check
3615/3611
7611 collector
Check CPU
7801 Pin38
control range
Check
7501 Pin32
4. Symptom
Rotation
Check
7621
Check 7617
Check 3627/3628
5. Symptom:
Focos
Enter OSD
function
disable morie
Check HDRB
7501 Pin8
Check 7501
pin11
parabola exist
Check 7611
Refer cpu
check list
check cpu pin11-14