Daewoo DSC-30W60N Service Manual page 33

Troubleshooting charts
Check 200VA to PA14M.
H Drive signal is output to Source of Q423.
33.75KHz
Horizontal Drive B+ to R481 is about 130Vp-p ± 10Vp-p .
The voltage waveform of Q425's collector is the following.
HD2
YES
YES
60Hz
YES
1400Vp-p ± 50Vp-p
END
NO
To No Power
200Vp-p
10Vp-p
130Vp-p
NO
32
NO
Check Q423.
If the impedance value of Q425's
collector is near zero Ω , the
horizontal deflection TR (Q425)
is dead. Replace Q425.