A13
Standard Repair Process Detail Technical Manual
1. Check IR cable condition between IR & Main board.( Check picture number① and ②).
2. Check the Pin 22, Standby Power 3.5V (③)
3. AS checking the Pre-Amp(IR LED light) , the power is in ON condition, an Analog
Tester needle should move slowly, otherwise, it’s defective.
A13
③
Pin Pin name
1 3.5V_WIFI
2 WIFI_DM
3 WIFI_DP
4 GND
5 WOL/WIFI_POWER_ON
6 3.5V_WIFI
7 WIFI_SUSPEND/RESUME
8 GND
9 COMBO_RESET
10 BT_WAKEUP_HOST
11 GND
12 3.5V_WIFI
13
N/C
14 N/C
15 N/C
16 EYE_SDA
17 EYE_SCL
18 GND
19 IR
20 LED_R
21 GND
22 +3.5V_ST
23 KEY2
24 WOV_PDM0_DATAIN
25 WOV_PDM_CLKOUT
Remote control operation checking method
D. Function error
Checking order to check remote control
① IR & EYE Sensor
77B3
②
LED
IR
Eye
Error symptom
Content
Established
date
Revised
date
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