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PD-41,PD-3700
MAIN BOARD ASSEMBLY
i
M1
Hee
(CN201)
7 ae
TEST MODE
g VR102 VR152
jumper wires
VR1
VR151
test
move [==]
Figure 1 Adjustment Locations
6-4. Notes
1. Use a 10: 1 probe for the oscilloscope.
2. All the knob positions (settings) for the oscilloscope in the adjustment procedures are for when a 10:1 probe is
used.
6-5. Test
mode
These models have a test mode so that the adjustments and checks required for service can be carried out easily.
When these models are in test mode, the keys on the front panel work differently from normal. Adjustments and
checks can be carried out by operating these keys with the correct procedure. For these models, all adjustments are
carried out in test mode.
[Setting these models to test mode]
How to set this model into test mode.
1. Turn off the power switch.
2. Short the test mode jumper wires. (See Figure 1.)
3. Turn on the power switch.
When the test mode is set correctly, the display is different from what it usually is when the power is turned on. Ifthe
display is still the same as usual, test mode has not been set correctly, so repeat steps 1-3.
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