Dip Sw, Led, Vr, Tp, And Fuse Tables; Test Points; Potentiometers; Power Supply Unit - Ricoh C231 Service Manual

TEST POINTS

4.2 DIP SW, LED, VR, TP, AND FUSE TABLES

4.2.1 TEST POINTS
MPU
No
TP101 CIS Sample Clock
TP102 Video Signal
TP103 GND-a
TP104 Scan Line Synchronizing Signal
TP105 Ink Detection Pulse (Standard Pulse)
TP106 Ink Detection Pulse
TP107 Not used
TP108 Master End Sensor Output Voltage
TP109 GND-a
TP110 -12V

4.2.2 POTENTIOMETERS

MPU
No
VR101 Ink Detection Adjustment
VR103 Master End Sensor Adjustment

Power Supply Unit

No
VR2 Thermal Head Voltage Adjustment

4.2.3 LED'S

MPU
LED #
101 Low Ink Condition
C231/C237/C238
Usage
Usage
Usage
OFF
4-4
ON
Sufficient Ink Condition
SM