Specifications

LED Cinema Display (24-inch) Symptom Charts — Startup and Power Issues 19
2010-02-08
Disconnect all connectors from 9.
the logic board EXCEPT the
power supply cable.
Verify voltages on logic
board between test points
TP61 (3.3VDC) and chassis
ground (GND) is 3.1–3.5 VDC,
and between TP13 (12VDC)
and chassis ground (GND) is
11.4–12.6 VDC.
Yes Power supply OK. Suspect
possible short, damaged
connector, or faulty sensor/
fan/speaker. Reconnect
connectors one at a time
and retest for 3.3VDC at TP61
and 12VDC at TP13. Replace
aected part that causes the
3.3VDC or 12VDC voltages to
disappear.
L14
No
Replace logic board. L01
Burnt Smell/Odor
Unlikely cause: LCD panel, blower, subwoofer, speakers, camera, microphone
Quick Check
Symptoms Quick Check
Burnt Smell/Odor
No power•
No image•
No fan spin•
Non-operational•
Verify source of smell/odor is emanating from the 1.
display.
Verify display is functional.2.
Remove air vent obstructions.3.
Deep Dive
Check Result Action Code
Verify by visual inspection of 1.
each module the location the
source of burnt smell/odor
Yes Located aected module.
Go to step 2.
No
Not able to locate aected
module. Go to
Dead Unit / No Power
symptom code ow.
Verify no other modules or 2.
internal cables are aected or
the root cause.
Yes Replace all aected module(s)
and/or cable(s).
P08
No Return unit to user.