Leds; Test Points - Ricoh B264 Service Manual

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
SM
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
4-33
LED 102
(Yellow)
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
LEDS
LED 103
(Red)
Flashes
Flashes
Flashes
Flashes
Flashes
Off
LED 2
(Red)
B264/B265