- 18 -
3. NO CHARACTER
CHECK
IC302 PIN 5, 6, 7 ?
CHECK
IC302 PIN 18, 19, 20,
PIN 9 (5V) ?
CHECK
IC303 PIN 1, 3, 5
PIN10 (12V),
PIN 6 (80V) ?
TROUBLE IN
P102, P301, SIGNAL
CABLE, PC SIGNAL
TROUBLE IN
IC302, P302
TROUBLE IN
IC303
TROUBLE IN
CDT SOCKET
NO
YES
NO
NO
YES
YES
CHECK
R, G, B CATHODE
VOLTAGE?
TROUBLE IN
IC304
NO
YES
NO CHARACTER