Canon D78-5532, Руководство по обслуживанию

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2.2 Fan Control Adjustment
1. Set the lamp mode to "Normal" and then enter the service mode.
2. Connect a digital voltmeter to test point “
TPFANB ” (+) and chassis ground (–). Select
item no. “ 81 ” and change data value to adjust voltage to be 6.0 ±0.1V.
3. Connect a digital voltmeter to test point “ TPFANC ” (+) and chassis ground (–). Select
item no. “ 82 ” and change data value to adjust voltage to be 6.0 ±0.1V.
4. Connect a digital voltmeter to test point “ TPFANB ” (+) and chassis ground (–). Select
item no. “ 84 ” and change data value to adjust voltage to be 13.5 ±0.1V.
5. Connect a digital voltmeter to test point “ TPFANC ” (+) and chassis ground (–). Select
item no. “ 85 ” and change data value to adjust voltage to be 13.5 ±0.1V.
2.3 Pedestal Adjustment [PC]
1. Receive the 16-step grey scale computer signal with Computer1 [RGB] mode.
2. Enter the service mode.
3. Connect an oscilloscope to test point “
TPVIDEOG ” (+) and chassis ground (–).
4. Select item no. “ 203 ” and change data value to adjust the pedestal level and black
level to be the same level.
5. Connect an oscilloscope to test point “ TPVIDEOR ” (+) and chassis ground (–).
6. Select item no. “ 204 ” and change data value to adjust the pedestal level and black
level to be the same level.
7. Connect an oscilloscope to test point “
TPVIDEOB
” (+) and chassis ground (–).
8. Select item no. “ 205 ” and change data value to adjust the pedestal level and black
level to be the same level.
Fig. 3-3
P
edestal Lebel
Blac
k Lebel
Part 3: Adjustment
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