Test Points - Ricoh B079 Service Manual

LEDS
4.4 LEDS
BICU LED Sequences
Normal Operation
System Startup
Firmware Update: Normal
Execution
Firmware Update: Error
Firmware Update: Normal End
Energy Save Mode
Controller LED Sequences
System Startup (including Self-Diagnostics)
Self-Diagnostic Error
Normal Operation
Firmware Update: Normal Execution
Firmware Update: Error
Firmware Update: Normal End
NOTE: LED 1 monitors Data Bus Bit 14, LED 2 monitors Data Bus Bit 15.

4.5 TEST POINTS

Controller Board
Number Monitored Signal
TP1
TP3
TP6
TP8
TP9
TP10
TP11
TP12
TP13
TP14
TP15
TP16
TP17
B079/B082
CÓPIA NÃO CONTROLADA
LED 101
(Green)
Flashes
Flashes
Flashes
Flashes
Flashes
Off
GND
GND
GND
DB0 RXD
DB0 TXD
GND
+5VE
GND
+5V
+5VE
GND
R_FGATE
W_FGATE
4-26
CÓPIA NÃO CONTROLADA
LED 102
(Red)
Off
On (1~2s) then Off
On
Flashes
Off
Off
LED 1
(Red)
On Off
On On
Flashes Off
Flashes Flashes
Off Off
On On
LED 103
(Orange)
Flashes
Flashes
Flashes
Flashes
Flashes
Off
LED 2
(Red)
SM