Sharp FO-2600 Service Manual page 104

FO-2600TH/SG
FO-2600GU/GH
[Connecting the extension board 2].....For inspection of PCU and Cable parts code Connector
Power supply QCNW-44498CZz_| CN303
1) Remove the bottom plate unit from the main unit. QCNW-4451SCzz_ | CN304
2) Remove the control PWB from the removed bottom plate unit, OCNW-44528Czz__| CN307
mount it on the bottom plate of extension board 2A (EXT2A), and
connect the cable of main unit to the extension board 2A (EXT2A) QCNW-4453SC2Z | CN302
in the same way as the control PWB, PCU PWB, and power QCNW-4454SCZZ TC terminal PCU PWB
supply. QCNW-4455SCZz__| MC terminal ;
3) Lead out the cable of extension board 2A (EXT2A) from the hole OCNW-4456SCZZ FG terminal
for the AC cord and power switch on the bottom plate, and mount Biel diliLaneeaeoeem|
the bottom plate to which the extension board 2A (EXT2A) has QCNW-4457SCZZ_| Drum earth terminal
been fixed on the main unit. QCNW-4458SCZZ ; bc bias terminal
4) Connect the PCU PWB and power supply, using the extension QCNW-4473SCZZ R312 (PIN)
cable let out from the rear side of main unit on which the exten- R313 (POUT)
sion board 2A (EXT2A) has been mounted as shown in the figure
2 QCNW-4474SC2Z CN4
y
Power Supply PWB
5) Connect the connectors CNPCU and CNPW of extension board QCNW-4475SCZ2Z CNS
2B (EXT2B) to the 'connectors CN305A and CN305B of PCU
Pwe.
Extension board connection diagram
CHECK
POWER
SUPPLY
EXTENSION
BOARD ({EXT2B)
EXTENSION BOARD 1(2/2)
1{___]8 cnek1
1} 8 cneke
1
'Ce
CNCED2 CNTXM2
CNSP2
CNEXTIB bd
pe
21
CNPNL2
CNCCD2
21
CNPW2 CNCU2