Part 3: Adjustment
3-8
2. CIRCUIT ADJUSTMENTS
[Adjustment conditions]
●
Input signal
Video signal ............................1.0Vp-p/75
Ω
terminated, 16 steps gray scale
(Composite video signal)
Computer signal .....................0.7Vp-p/75
Ω
terminated, 16 steps gray scale pattern
Component Video signal .........0.7Vp-p/75
Ω
terminated, 16 steps gray scale
(Component video signal with 480p, 575p, 720p or
1080i format)
●
Picture control mode
...............“STANDARD” mode unless otherwise noted.
Note:
Please refer to “Service Adjustment Menu Operation” for entering the service mode and
adjusting the service data.
2.1 Output Voltage Adjustment
After replacing the Power Board readjust the Output voltage adjustment as follows.
1. Connect a digital voltmeter to pins 1 (+) and 3 (–) of
K6D
.
2. Adjust the voltage by using
VR611
as following.
AC Input: 230V Reading: 380V ± 2V
* This adjustment is not required even if the power board is replaced because this
adjustment is carried out before parts shipment.
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 steps gray scale pattern
Be sure to connect the lamp when taking this adjustment.
CAUTION
Содержание D78-5532
Страница 2: ...CANON Multimedia Projector LV X4U D78 5532 LV X4E D78 5533 SERVICE SMANUAL ...
Страница 9: ...Part 1 General Information ...
Страница 26: ...Part 2 Repair Information ...
Страница 43: ...Part 3 Adjustment ...
Страница 62: ...Part 4 Troubleshooting ...
Страница 79: ...Part 4 Troubleshooting 4 17 AN5870SB RGB SYNC SW IC5201 LM4889 Audio Amplifier IC5031 ...
Страница 81: ...Part 4 Troubleshooting 4 19 FA5502 P F Control IC621 VPC3230D Video Decoder IC101 ...
Страница 82: ...Part 4 Troubleshooting 4 20 L3E07070 Signal Processor for TFT LCD IC401 NJW1141 Audio Selector IC5001 ...
Страница 83: ...Part 4 Troubleshooting 4 21 STR Z2156A Power Switching Control IC631 PW168A Scaler Main CPU IC301 ...
Страница 84: ...Part 4 Troubleshooting 4 22 TA1370FG Sync Separator Frequency Counter IC5302 ...
Страница 85: ...Part 5 Parts Catalog ...
Страница 86: ......
Страница 94: ......
Страница 96: ...V 1 U 2 U 1 V 2 Z 1 Z 2 X Y W Accessories Page 5 CANON LV X4J LV X4U LV X4E REF NO D78 5531 D78 5532 D78 5533 ...
Страница 100: ...Part 6 Electrical Diagrams ...