Panasonic KX-FLC413RU (serv.man3) Service Manual / Supplement ▷ View online
5
KX-FLC413RU
2.1.4.
TRA(+) BIAS (Transfer(+) BIAS)/TRA(-) BIAS (Transfer(-) BIAS) Unit
[Changed from original section “7.15.3. TRA(+) BIAS (Transfer(+) BIAS)/TRA(-) BIAS (Transfer(-) BIAS) Unit”]
7.15.4. TRA(+) BIAS (Transfer(+) BIAS)/TRA(-) BIAS (Transfer(-) BIAS) Unit
When CHG REM is “L” and TRA CLK is “open”, Charge BIAS(180
PA) is output from CHG OUTPUT, and at the same time Trans-
fer(+)BIAS(800V) is output from TRA OUTPUT. When 5.425kHz PWM(Plus Width Modulation) signal is input to TRA CLK through
transistor Q208, Transfer(-) CURRENT BIAS corresponding to PWM signal is output from TRA OUTPUT.
transistor Q208, Transfer(-) CURRENT BIAS corresponding to PWM signal is output from TRA OUTPUT.
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KX-FLC413RU
2.2.
TROUBLESHOOTING DETAILS
2.2.1.
High Voltage Value Check Point
[Changed from original section “13.2.7. High Voltage Value Check Point”]
1
3.2.7. High Voltage Value Check Point
Measurement Procedure
1. Unplug the unit, and open the unit cover.
2. Remove the developing unit, if it is equipped.
3. Connect the wire to the terminal to be measured (Fig. 2). The wire should be put out of the unit not to interfere in other termi-
2. Remove the developing unit, if it is equipped.
3. Connect the wire to the terminal to be measured (Fig. 2). The wire should be put out of the unit not to interfere in other termi-
nals. See Fig 2 and 3 for fixing the wire to the terminal No.5.
4. Connect the wire fixed to the terminal to be measured and high voltage probe. Connect the earth of the high voltage probe to
the screw located under metal plate (Fig4, 5).
5. Reinstall the developing unit and close the unit cover.
6. Plug un the unit. It causes the unit to start the initial operation. Be careful, high voltage is output at that moment. (Avoid mea-
6. Plug un the unit. It causes the unit to start the initial operation. Be careful, high voltage is output at that moment. (Avoid mea-
suring then.)
7. The unit enters the service mode. Then push *556_0. (Do not push the SET button.)
8. Push the SET button.
8. Push the SET button.
(High voltage will be added to the unit in the hereafter. Avoid touching the wire and the tip of high voltage probe where high
voltage is supplied.)
voltage is supplied.)
9. When the measurement is finished, push the STOP button.
(The high voltage output is stopped.)
10. Remove the wire fixed to the output terminal after measuring.
Each terminal’s output voltage
* FLUKE85 (MULTIMETER) + HIOKI (HV PROVE 9014) or the equivalent should be used as the high voltage measuring instru-
ment.
* As for measuring TRA, start measuring within 9 seconds after pressing the SET button. The output value will be changed in 9
seconds.
ment.
* As for measuring TRA, start measuring within 9 seconds after pressing the SET button. The output value will be changed in 9
seconds.
No.
BIAS Name
Rated Output
Rated Output Range
1
DEV (Developing)
220V
220V ± 15V
2
OPC (GND)
-----------
-----------
3
GRID (Grid)
475V
475± 18V
4
CHG (Charge)
180
PA
Output voltage about 4.1~4.6KV
5
TRA+ (Transfer)
800V
800± 100V
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KX-FLC413RU
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KX-FLC413RU
2.2.2.
High Voltage Section
[Changed from original section “13.2.8. High Voltage Section”]
1
3.2.8. High Voltage Section
1. Main
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