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Standard Repair Process Detail Technical Manual
symptom
Content
Checking order when there is no audio
1. Check the contact condition of or 20V connector of Main Board.
2. Measure the 13.2V output voltage from Power Board.
(If there is no input voltage, remove and check the connector.)
3. Connect the speaker terminal and if you hear the 'Chik~ Chik~' sound when you
touch the GND and output terminal, the speaker is normal.
Error
C. Audio error_ No audio / Normal video
Voltage and speaker checking method
when there is no audio
P201
P202
P251
②
P251
SK100
Established
date
Revised
date
①
1
3
5
7
9
11
A12
SPK_R-_FT
2
SPK_R+_FT
SPK_L-_FT
4
SPK_L+_FT
SPK_R-_CT
6
SPK_R+_CT
SPK_L-_CT
8
SPK_L+_CT
SPK_R-_TW
10
SPK_R+_TW
SPK_L-_TW
12
SPK_L+_TW
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Only for training and service purposes.
A12
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