Part 3: Adjustment
3-10
2. ELECTRICAL ADJUSTMENTS
[Adjustment conditions]
●
Input signals
Video signal ............................1.0 Vp-p (75 ohms terminated), 16-step monochrome
pattern
Computer signal .....................0.7 Vp-p (75 ohms terminated), 16-step monochrome
pattern (XGA)
Component video signal ..........0.7 Vp-p (75 ohms terminated), 16-step monochrome
pattern (480p or 1080i format)
●
Picture control
........................"STANDARD" mode unless otherwise specified
●
Bright mode
............................"Bright Off" mode unless otherwise specified
Note:
* Please refer to "Service Adjustment Menu Operation" for entering to the service mode
and adjusting the service data.
2.1 Output Voltage Adjustment
After replacing the power unit and P.F. unit, readjust the output voltage adjustment as
follows.
1. Connect a digital voltmeter to pin 1 (+) and 3 (–) of K6A.
2. Adjust the voltage by using VR601 as follows.
AC Input: 230V Reading: 370V ± 2V
or 100V 320V ± 2V
Fig. 3-2
The each circuit has been made by the fine adjustment at factory. Do not
attempt to adjust the following adjustments except requiring the
readjustments in servicing, otherwise it may cause loss of performance
and product safety.
CAUTION
White 100%
Black 100%
16-step monochrome pattern
Be sure to connect the lamp when taking this adjustment.
CAUTION
Summary of Contents for LV-7545U
Page 2: ...CANON Power Projector LV 7545E D78 5231 SERVICE SMANUAL ...
Page 9: ......
Page 10: ...Part 1 General Information ...
Page 24: ......
Page 25: ...Part 2 Repair Information ...
Page 46: ...Part 3 Adjustment ...
Page 69: ...Part 4 Troubleshooting ...
Page 86: ...Part 4 Troubleshooting 4 17 BH3540 Volume Control IC1652 CXA2101AQ RGB Matrix IC4101 ...
Page 90: ...Part 4 Troubleshooting 4 21 LB1645 Motor Drive IC1601 LC863316 SUB CPU IC1851 ...
Page 91: ...Part 4 Troubleshooting 4 22 ML60851 USB I F IC9801 M62393 D A IC212 IC2381 ...
Page 93: ...Part 4 Troubleshooting 4 24 SII161ACT DVI I F IC8001 STR Z2156 Power Switching IC651 ...
Page 94: ...Part 4 Troubleshooting 4 25 TA1287 RGB YUV Converter IC4551 TB1274AF Video Decoder IC1101 ...
Page 95: ...Part 4 Troubleshooting 4 26 TDA7056 Audio Output IC1631 IC1632 ...
Page 96: ...Part 5 Parts Catalog ...
Page 97: ......
Page 113: ...Part 6 Electrical Diagrams ...
Page 130: ......