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Rev. 2.01
- 51 -
SRP-350/352plusA&C
7. Troubleshooting
This chapter describes the methods for troubleshooting in this Receipt Printer.
7-1 Power Problem
Power Out
O
k?
O
n
S
MP
S
Power VDR
(
+24V
)
O
k?
Power VTPH
(
+24V
)
O
k?
Power VCC
(
+
5
V
)
O
k?
End
1. Check the Input/Output Power Cable
2. Replace the Adapter(SMPS)
1. Check the Harness of Power S/W
2. Check the related Circuit & Pattern
1. Check the TR (Q3,Q4)
2. Check the related Circuit & Pattern
1. Check the Regulation U2 (BA17805FP-E2)
2. Check the related Circuit & Pattern
Power
Problem
N
N
N
N
Y
Y
Y
Power
(
+7.
8
V
)
O
k?
1. Check the Regulation U16 (LM2576S-ADJ)
2. Check the related Circuit & Pattern
N
Y
Y
Power
(
+
3
.
3
V
)
O
k?
1. Check the Regulation U3 (BA033FP-E2)
2. Check the related Circuit & Pattern
N
Y