Zenith XBV243 series Service Manual - Electrical
Other manuals for XBV243 series:
Installation And Operating Manual, Installation And Operating Manual, Installation And Operating Manual
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110
VR168 - 923-03485
3-23
D35E COMBO - ELECTRICAL
ELECTRICAL
END
NO
NO
NO
NO
YES
YES
YES
YES
• Check IC201 Pin 162.
• Check the clock at the IC201 Pins 28, 30.
CHECK A
Check RF Eye-Pattern.
RF : 1.5-1.6V(IC2A1 Pin 57)
Is the eye-pattern vivid?
Does the
sawtooth waveform emit
at IC2A1 Pin 41?
Does the 1.6V emit?
Replace IC2A1.
Check IC201 Pin84.
Replace IC201.
No signal: Pick-up is defective
Check IC2A1 Pins 5, 6, 7, 8.
No signal at IC201 : IC201 is defective
• Both are normal : IC201 is defective
TROUBLESHOOTING (CONTINUED)