LG 60PY2D, Service Manual

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6. In case of no sound
(1) Symptom
Ø
LED is green
Ø
Screen display but sound is not output
(2) Check following (If HDMI sound is not output, Check the EDID at first)
Is the SPK
cable normal?
Is the SPK cable
connected correctly?
Connect the Cable correctly.
No
No
Replace IC501
No
Replace IC502
No
Replace SPK cable
Yes
Yes
Is the RF
(Digital) sound
normal?
No
Is the
MSP4410K
(IC501)
normal?
Is the
NSP6241
(IC502)
normal?
Replace IC503
No No
Is the
TAS5122
(IC503)
normal?
Is the Scaler
(IC701)
normal?
Replace IC701
Yes
Yes
Yes
Yes
Is the RF(Analog)/ AV/
Component L-R sound
normal?
Yes
Yes
Replace
VSC Digital
B/D
Yes
Is the Flat cable
connected correctly?
Connect the Cable
correctly.
No
No
Is the CS5530A
(IC1205), MC33078
(IC1206), Scaler
(IC701) normal?
No
Replace the IC
Is the SPDIF
sound normal
No
Is the 74LCX157
(IC1203), CS8415A
(IC1202), 74LCS244
(IC1201), Scaler
(IC701) normal?
No
Replace the IC