Ricoh FT5580 Service Manual page 28

12 June 1987
SERVICE TABLES
1. Test Points
- Main Board -
Number
TP100
TP101
TP102
TP103
- Scanner Control -
Number
TP301
TP303
TP304
TP305
TP306
TP307
TP308
TP309
TP310
TP311
TP312
2. Variable Resistors
- ID Sensor Board -
VR
VR-1
- Main Board -
VR
VR-100
- Optics Control Board -
VR
VR-301
VR-302
Function
Input voltage of image density sensor.
+24 V
+5 V
GND
Function
+24 V (Vm)
Factory Use
Factory Use
Factory Use
Factory Use
Factory Use
Original Density Voltage
Scanner Forward Signal (Low Active)
Scanner Return Signal (Low Active)
GND
+5 V (Vc)
Function
LED Light Intensity Adjustment
Function
ADS Voltage Adjustment
Function
APS Width Sensor (OWS) Voltage Adjustment
APS Length Sensor (OLS) Voltage Adjustment
2-4