Frontier LP7500 Service Manual page 819

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• This PCB has connectors J219 (OUT), J220 (IN), J221 (OUT), J222 (IN), J223 (OUT) and J224 (IN) which are
connected to optical fiber cables. Be sure to read the Precautions in handling the cable before operation.
68100
! ! ! ! Unused connector
Connector No.
P210 Corresponds to the CVP.
P204 Quad magazine PCB, triple magazine PCB
P213 Quad magazine PCB
! ! ! ! Component parts table
LED No.
LED1 DC+5 V input check
LED2 DC+3.3 V input check
TP
TP1 DC+5 V voltage measurement
• Power supply for digital circuits such
as ARCNET, FPGA, memory, and
CPU
• TP1: not installed
TP2 to TP6 Ground
• TP2: installed
• TP3 TP6: not installed
TP7 DC+3.3 V voltage measurement
• TP7: not installed
TP8 to Unused
*1
TP15
• Power supply for digital circuits such
as ARCNET, FPGA, memory, and
CPU
• TP8 to TP15: not installed
*1. Cannot use the voltmeter.
Switch No.
DS1
DS2
DS3
Purpose
Purpose
Purpose When the normal value (# V) is not detected
Bit No. Settings
1 OFF
2 OFF
3 OFF
4 OFF
1 OFF
2 OFF
3 OFF
4 OFF
1 OFF
2 OFF
3 OFF
4 OFF
66000
Description of PCB (printer section)
Option
Option
Option
• Failure in the cable connection between the
printer power supply 5 and printer control
PCB.
• Failure in the printer power supply 5 and
printer control PCB.
−
• Failure in the printer control PCB
−
Purpose
Unused
Unused
Unused
Unused
Unused
Unused
Unused
Unused
Unused
Unused
Unused
Unused
66000
Remarks
Status
On when the power supply is
turned on.
On when the power supply is
turned on.
Symptom
• No. 06901
ARCNET
communication
error. occurs.
−
• No. 06901
ARCNET
communication
error. occurs.
−
Remarks
Be sure to turn off.
Be sure to turn off.
Be sure to turn off.
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