3.1 1701 Special Function and Test Codes
3.1.3 1701 Diagnostic Tests
Using the 1701 tests, you can diagnose the individual input or output devices
that connect to the DC control board.
Input devices are the various sensors, switches, and thermistors. When you
run a test, the DC control board monitors the input device and displays the
SENSING prompt. When you manually actuate the sensor, the beeper sounds
and the control panel lights up. Other input tests display only data or control
panel lights, requiring no manual interaction.
Output devices consist of motors, solenoids, and high-voltage power supplies.
When you run an output test, the device is turned on and off. If PASS message
is displayed, the DC control board received the expected sensor signal from the
device under test. To prevent device overheating, device test time is limited to
10 seconds.
Table 3–2 1701 Test Codes
Test
Code
Display or
Prompt
Definition
0100
SENSING
Top cover LVPSA interlock switch.
0101
SENSING
Feed-door sensor.
0102
SENSING
Exit door sensor.
0201
blinking
Blinks the control panel indicators.
0202
lights
Turn on the control panel indicators.
0203
blocks
Two lines of 16 solid blocks on the display panel.
0204
Beeping
Sounds the beeper.
0205
SENSING
Press any key except
3
and all the indicators light.
0400.00
PASS
The main motor runs.
0400.01
PASS
The main motor and transfer charger
1
run.
0400.02
PASS
The main motor and developer charger
1
run.
0400.04
PASS
The main motor and main charger
1
run.
1
The motor is tested, the charger is just turned on.
Note:
When you see the SENSING prompt, you must manually actuate the sensor under test.
You may need the interlock cheating tool for covers open operation. The tool is part of the
miscellaneous parts kit, shown in Table 8–1.
(continued on next page)
Service Menus and Tests 3–5
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