Service manual

DIP SWITCHES/JUMPER PINS/LEDS
SM 4-7 B358
Service
Tables
4.5 DIP SWITCHES/JUMPER PINS/LEDS
4.5.1 DIP SWITCHES
SW2:
No. Function On OFF
1
Destination for firmware
downloading
To flash ROM
To ROM SIMM
2
3
Not used Do not change this setting. Keep these both off.
4 Operation mode
Normal operation
Programming firmware
NOTE:
The functions of DIP switches no.1 is enabled when changing the setting of
no.4 to the off position. However,
do not change the default settings
.
Always do the firmware downloading using SP mode.
4.5.2 JUMPER PINS
TB1:
Function CS0 CS1
Bank setting for resident flash
ROM
Bank setting for flash
ROM is “0”.
Bank setting for flash
ROM is “1”.
TB2:
Function UN-PROT PROT
Not used Do not change this setting. Keep at “UN-PROT”.
4.5.3 LEDS
Symbol Function
PWR This LED turns on when +5 V is supplied to the printer controller.
LED2
LED3
LED4
LED5
Refer to section 6.2 (LEDs) for more detail.
4.6 SPECIAL TOOLS
Part Number Description Q‘ty
A8545120 ROM SIMM 1
G0219350 Loop Back Connector 1