Toshiba 21S04B Service Manual page 28

Normal
Check
Normal
CRT PCB RK, BK, GK
Check Abnormal
Heater Voltage
Normal
Check CRT and FBT
Check CRT and FBT
No Picture, but sound is
in normal operation
Turn the VR of FBT, higher screen
voltage and Check the Deflection
is in Normal Operation
(If the deflection is in operation,
flyback signal is appeared)
Abnormal
Check
Abnormal
HIC202, HIC203,
HIC204 Output
Check
Abnormal
IC201S #63
or #59
Normal
Normal
Replace IC201S
Check
200V, 16.5V Line
Tuner CVBS Output
Abnormal
Normal
Check
IC201S #31
Abnormal
Check 8V
Normal
Check
IC803
Check
IC301
Check
Abnormal
Abnormal
Check DZ202
Normal
Replace
DZ202
Replace
IC201S