LG 60PY2D-AB Service Manual page 19

6. In case of no sound
(1) Symptom
LED is green
Ø
Screen display but sound is not output
Ø
(2) Check following (If HDMI sound is not output, Check the EDID at first)
Is the SPK
cable normal?
Yes
Is the Flat cable
connected correctly?
Yes
No
Is the RF
(Digital) sound
normal?
Yes
Is the RF(Analog)/ AV/
Component L-R sound
normal?
Yes
Is the SPDIF
sound normal
No
Is the SPK cable
connected correctly?
No
Connect the Cable correctly.
No
Connect the Cable
correctly.
Is the
Yes
MSP4410K
(IC501)
normal?
No
Replace IC501
Is the CS5530A
No
(IC1205), MC33078
(IC1206), Scaler
(IC701) normal?
Is the 74LCX157
No
(IC1203), CS8415A
(IC1202), 74LCS244
(IC1201), Scaler
(IC701) normal?
Yes
Replace SPK cable
Is the
Yes
NSP6241 TAS5122
(IC502) (IC503)
normal? normal?
No
Replace IC502 Replace IC503
No
Replace the IC
No
Replace the IC
- 19 -
Is the
Yes
Is the Scaler
(IC701)
normal?
No
Replace IC701
Yes
Replace
VSC Digital
B/D
No