Level 3 Repair
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2. IR LED
Check the Voltage
VCC_1.8V_AP,VCC_2.8V_AP
C756 = 3.4V
Abnorma IRLED Part
END
No
Yes
Check the Voltage
R1002 = 1.8V
R1003 = 1.8V
No
Yes
check the voltage when
barcode active mode
R1046 = 1.8V
R716 = 1.8V
No
Yes
Resolder U600 or U1001
Resolder U1001 or heat over UCP5000
Resolder U1001 or heat over UCP5000
or Q701 or resolder
R716,717,718,719,720,721,722,1,723,726
Yes
IRLED
operate correctly?
No
change RCV module
