Checking order when there is no audio
1. Check the contact condition of or 20V connector of Main Board.
2. Measure the 20V input voltage supplied from Power Board.
(If there is no input voltage, remove and check the connector.)
3. Connect the tester P20102 to the speaker terminal and if you hear the ‘Chik~ Chik~’
sound when you touch the GND and output terminal, the speaker is normal.
Standard Repair Process Detail Technical Manual
Voltage and speaker checking method
when there is no audio
C. Audio error_No audio/Normal video
A12
Established
date
Revised
date
Error
symptom
Content
A12
①
③
P7603
P20102
1 SPK_R-_FT
2 SPK_R+_FT
3 SPK_L-_FT
4 SPK_L+_FT
5 SPK_R-_CT
6 SPK_R+_CT
7 SPK_L-_CT
8 SPK_L+_CT
9 SPK_R-_TW
10 SPK_R+_TW
11 SPK_L-_TW
12 SPK_L+_TW
P20102
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