11.1.2.1. Checking IR Circuit
NOTE1: Even if Main P.C.B. is not removed, IR Circuit can be checked.
NOTE2: Prepare the Oscilloscope
1. Remove Top Case.
2. Turn on the power. Then if "Welcome ..." was displayed on the TV monitor, press [ENTER] to advance next stage.
Then press [ENTER] and proceed to step 6.
(*After "EPG" has been set up, this indication will not appear.)
3. Press [FUNCTIONS].
4. Select "TV GUIDE", and then press [ENTER].
5. Press [ENTER] to advance next stage.
6. Press [ENTER] to advance next stage.
7. Select "USA", and then press [ENTER].
8. Input "0 2 0 3 2", and then press [ENTER].
9. Select "Yes", and then press [ENTER].
10. Select "Yes", and then press [ENTER].
11. Select "Ch3", and then press [ENTER].
12. Press [ENTER].
13. Select "Not Listed", and then press [ENTER].
14. Connect scope to JK38001-4
15. Press [ENTER], and then if the P.C.B. is "OK", pulse signals of approx. 4.5Vp-p are output twice from JK38001-4.
(When you want to check again, select "Test this code again" and press [ENTER], then Pulse signals are output again.
*Recommended ranges of the Oscilloscope:
V: DC range, and 1V/div.
T: 1msec. /div.
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DMR-EH75VP
Содержание DMR-EH75VP
Страница 6: ...2 2 Precaution of Laser Diode 6 DMR EH75VP ...
Страница 8: ...3 Service Navigation 3 1 Service Information 8 DMR EH75VP ...
Страница 9: ...4 Specifications 9 DMR EH75VP ...
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Страница 18: ...6 Location of Controls and Components 6 1 Each Buttons 18 DMR EH75VP ...
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Страница 40: ...10 2 P C B Positions 40 DMR EH75VP ...
Страница 50: ...11 1 2 Checking and Repairing of Main P C B 50 DMR EH75VP ...
Страница 52: ...11 1 3 Checking and Repairing of RAM Digital P C B Module 52 DMR EH75VP ...
Страница 53: ...11 1 4 Checking and Repairing of HDD 53 DMR EH75VP ...
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Страница 119: ...17 Parts and Exploded Views 17 1 Exploded Views 17 1 1 Casing Parts Mechanism Section1 119 DMR EH75VP ...
Страница 120: ...17 1 2 Casing Parts Mechanism Section 2 120 DMR EH75VP ...
Страница 121: ...17 1 3 VHS Mechanism Section 121 DMR EH75VP ...
Страница 122: ...17 1 4 Packing Accessories Section 122 DMR EH75VP ...