Ricoh C231 - Dip Sw, Led, Vr, Tp, and Fuse Tables; Leds; Potentiometers; Power Supply Unit

TEST POINTS
4-4
C231/C237/C238 SM
4.2 DIP SW, LED, VR, TP, AND FUSE TABLES
4.2.1 TEST POINTS
MPU
No Usage
TP101
TP102
TP103
TP104
TP105
TP106
TP107
TP108
TP109
TP110
CIS Sample Clock
Video Signal
GND-a
Scan Line Synchronizing Signal
Ink Detection Pulse (Standard Pulse)
Ink Detection Pulse
Not used
Master End Sensor Output Voltage
GND-a
-12V
4.2.2 POTENTIOMETERS
MPU
No Usage
VR101
VR103
Ink Detection Adjustment
Master End Sensor Adjustment
Power Supply Unit
No Usage
VR2 Thermal Head Voltage Adjustment
4.2.3 LED'S
MPU
LED # OFF ON
101 Low Ink Condition Sufficient Ink Condition