Checking order when there is no audio
①
Check the contact condition of cable or connector
②
Measure the 24V input voltage supplied from Power Board
(If there is no input voltage, remove and check the connector)
Standard Repair Process Detail Technical Manual
Voltage and speaker checking method
when there is no audio
C. Audio error_No audio/Normal video
A21
Established
date
Revised
date
Error
symptom
Content
A21
①
②
③
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
1 24V
2 24V
3 24V
4 24V
5 GND
6
GND
7 12V
8 12V
9 GND
10 GND
11 GND
12 GND
13 PWR-On
14 P-DIM2
15 GND
16 12V
17 12V
18 12V
19 24V
20 24V
21 GND
22 GND
23 DRV-ON
24 P-DIM1
25 GND
26 SCLK
27 VSINC
28 SIN
Main B/D Side
Pin map reversed
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Only for training and service purposes
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Содержание 60UH8500
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