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MODEL: WD-52527 / WD-52528 / WD-62527 / WD-62528
Page 33
MICRO / TERMINAL PWB TROUBLESHOOTING
Symptom Possible Causes
No audio or video on one input Physical damage on RCA jack, broken
solder or trace at pin on terminal board
No video on all inputs TA connecter loose, No Vcc to IC2K01,
IC9C00, IC9C10, IC9C20
No audio on all inputs TA connecter loose, No Vcc to IC3J01,
IC9C00, IC9C10, IC9C20, IC3E00,
IC3E01
No HDMI signal Source not HDMI compliant, physical
damage to J2001, J2101, no Vcc to
IC2000, IC2600, IC9C20, IC9C71, IC9C81
No HDMI audio Source is DVI mode, IC2401, IC9C71
No DVI audio IC3J02, IC3J03
No power or TV won't boot Loose RA connector, no Vcc to IC7A00,
IC9C51
TV shuts down Loose or disconnected JD connector , no
Vcc to IC7C81
Main picture ok, no PIP Loose or disconnected JD connector , no
Vcc to IC7C81
Main picture ok, no PIP IC2K01, Q2M20, 21, 22
PIP ok, no main picture IC2K02, 03, 04, Q2M00, 01, 02
No closed captioning Q2K07, 08, 09, 30, 31, 32
IR blaster not working Physical damage on phono jack PJ2E00,
01, broken solder or trace at pin on Micro
board, no Vcc to IC7P01-05
Troubleshooting Guide
MICRO PWB LAYOUT