Service manual

VI-8
ABCDEFGHJ
1 2 3 4 5 6
NIX EXCOPRO ASSY BR
PL12.1
HDD BR
PL12.1
PWBA FONT CARD
PL12.1
PWBA TOP ASSY BRA-PX(US)(EU) PL12.1
MCU HL-4200 PL12.1
CONTROL LOGIC
2.3.1 MACHINE SELF TEST
Flash Rom (U10)
CONTROL LOGIC
P/J 10
Pararell
P/J 12
USB
P14 J1
P/J 33
J34 P50
P/J 45
Ethernet 100Base TX / 10BaseT
2.3.3
IOT ERROR
J311
1 2 3 4
BRN VIO
GRY
VIO
P14 J27
+3.3DC DC COM DC COM
+5VDC
2.3.3
ESS ERROR
1 1 1
Virtual Line
+3.3DC
(2.1.1)
DC COM
(2.1.1)
DC COM
(2.1.1)
+5VDC
(2.1.1)
Flash Rom (U11)
+3.3VDC
J31
1
DC COM
(2.1.1)
2
S1
TEST PRINT
2 2
Shorting the pins J31-1and 2 enables test printing by the printer itself.
Flash Write
P30
2.3 Machine Run Control