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Troubleshooting charts

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HVD1

High Voltage Drive signal is output

to pin 3 of I401.

31.5 / 33.75KHz

12Vp-p

Check 200VB to

PA14M.

To No Power

High Voltage Drive signal is output

to source of Q407.

31.5 / 33.75KHz

200Vp-p

60Hz

20Vp-p

100V

FBT B+ to #12 of PW16P is about

100V

20Vp-p

END

Check emitter

of Q401.

Check Q810.

Check EHT Drive signal to

base of Q808.

31.5 /33.75KHz

12Vp-p

The voltage waveform of Q810's

drain is the following.

650Vp-p

1 2 ... 16 17 18 19 20 21 22 23 24 25 26 ... 58 59

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Daewoo DSC-34W70N Wartungshandbuch Seite 21