Abnormal Vertical Scanning - Fujitsu MCM1514V Service Manual

3. ABNORMAL HORIZONTAL VIDEO CENTER
SET H-CENTER TO CENTER
NG
4. ABNORMAL HORIZONTAL LINEARITY
CHECK L401,Q408,Q410,C427
& DY IC101 PIN 29 (CS1)
1. ABNORMAL VERTICAL SIZE
READJUAT V-SIZE FUNCTION VALUE
CHECK THE IC601 ABOUT 11.8V PIN 6
NG
OK
CHECK VERT. OSC CIRCUIT
NG
OK
READJUAT V-SIZE FUNCTION VALUE
2. VERTICAL CENTER
READJUAT V-CENTER FUNCTION
VALUE
NG
CHECK IC401 & IC601 RELATIVE CKT

6-6 ABNORMAL VERTICAL SCANNING

NG
CHECK IC401 PIN 4,7
RELATIVE CIRCUIT
CHECK D601,C606 RELATIVE CIRCUIT
CHECK THE VOLTAGE OF IC101
RELATIVE CIRCUIT
CHECK IC401 PIN 20,21,22,23
RELATIVE CIRCUIT