Zenith DVD5201, Руководство по обслуживанию

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VR166 - 923-03461
27
DVD2 - SERVICING
ELECTRICAL
See the eye-pattern vivid?
Does the
sawtooth waveform emit
at IC2A1 Pin 41?
Does the 1.6V emit?
Check RF Eye-Pattern.
RF : 1.5-1.6V(IC2A1 Pin 57)
Fig.5. RF
waveform
Check IC2A1 Pins 5, 6, 7, 8. No signal: Pick-up is defective
Replace IC201. Check IC201 Pin84.
No signal at IC201 : IC201 is defective
¥ Both are normal : IC201 is defective
Replace IC2A1.
CHECK A
D.
END
NO
NO NO NO
YES
YE S YE S YES