Sharp UP-600 Service Manual page 10

7. HOW TO USE SERVICE TOOLS
1) EXPANSION PWB : CKOG-6708RCZZ
•
External view
Purpose 1 : Used for servicing and repairing of options (such as the
and the ER-A5RS) wich are connected with the main
body option connector.
[Procedure 1]
Use an insulator base as shown in shaded section and perform serv-
icing.
UP-600
Expansion PWB
(CKOG-6708RCZZ)
Main PWB
To check the option I/F PWB from the solder side, connect the I/F
PWB to OPTCN2. To check from the parts side, connect to OPTCN3.
(Note) The option I/F PWB should be held horizontally so that no
excessive stress is applied to connecting section
[Procedure 2]
Pop up
UP-600
Expansion PWB
(CKOG-6708RCZZ)
Main PWB
Control ROM
Put a string between the pop up and the option PWB. Adjust the
length of the string so that the CKOG-6708RCZZ and the option PWB
are not binding. Then perform servicing.
Loop back connectors
UKOG-6705RCZZ
ER-A5RS
PWB
Base
A
.
String
Loop back connectors
UKOG-6705RCZZ
ER-A5RS
PWB
2) MCR TEST CARD : UKOG-2357RCZZ
•
Used when executing the diagnostics of the UP-E13MR.
•
External view