MICRO PWB LAYOUT
SYMPTOMS AND POSSIBLE FAULT LOCATION
- 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.