MODEL: WD-52527 / WD-52528 / WD-62527 / WD-62528

MICRO / TERMINAL PWB TROUBLESHOOTING

Troubleshooting Guide

 

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

 

 

 

 

 

 

 

 

 

MICRO PWB LAYOUT

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Mitsubishi Electronics WD-62527, WD-62528, WD-52528 specifications Micro / Terminal PWB Troubleshooting