Zenith D35, Service Manual

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Is the eye-pattern vivid?
Does the
sawtooth waveform emit
at IC2A1 Pin36?
Does the 1.6V emit?
Check RF Eye-Pattern.
RF : 1.5-1.6V(TP2A0)
Fig.5. RF
waveform
Check IC2A1 Pin3. No signal: Pick-up is defective
Replace IC201. Check IC201 Pin84.
No signal at IC201 : IC201 is defective
• Check IC201 Pin165.
• Check the clock at the IC201 Pins37, 59.
• Both are normal : IC201 is defective
Replace IC2A1.
CHECK A
D.
END
NO
NO NO NO
YES
YES YES YES