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