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This is the original manufacturers service manual, with detailed info on the circit boards, explosion drawings of all parts in assembly order, and tuning instructions. The only thing missing is the information on the dimensions of the various drive belts. mail me if you need them. gcrossman_at_aol.com
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Ordered service manuel for a hard to find plasma tv - your company made it easy to find and purchase - I will use you again
Thanks for your help
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This is a high quality manual with clear schematic and components layout diagrams ; with service procedure included.
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This service manual for the Kenwood KT-990D was reproduced really well ,is very legible and manual is complete.Combined with the low price paid,in the future,I will be checking Owner-Manuals.com any time I need a manual.
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When I purchased this manual I had my doubts regarding the quality as the price was so reasonable as compared to other outlets.
The manual itself is of high standard the print is very clear as are the diagrams. Obviously with the diagrams one has to zoom in otherwise it is to small to be able to read.
Overall I am very pleased with the company who delivered as they said and with the manual they supplied.
I occasionally require a manual and now having registered with this company I shall order from them in the future.
XP-ZV1 SECTION 4 ELECTRICAL CHECKING
The CD section adjustments are done automatically in this set. In case of operation check, confirm that RF level. Precautions for Check 1. Perform check in the order given. 2. Use YEDS-18 disc (Part No.: 3-702-101-01) unless otherwise indicated. 3. Power supply voltage requirement : DC4.5 V in DC IN jack. (J101) VOLUME button : Minimum HOLD switch : OFF RF Level Check Condition: � Hold the set in horizontal state. Connection:
oscilloscope (AC range)
MAIN board TP507 (RF) TP521 (RFGND)
+ �
Checking Location: � MAIN board (SIDE B) �
Procedure: 1. Connect the oscilloscope to the test points TP507 (RF) and TP521 (RFGND) on the MAIN board. 2. Set a disc. (YEDS-18) 3. Press the u button. 4. Check the oscilloscope waveform is as shown below. A good eye pattern means that the diamond shape (�) in the center of the waveform can be clearly distinguished.
RF Signal reference Waveform (Eye Pattern)
TP521 (RFGND)
VOLT/DIV : 100 mV (With the 10:1 probe in use) TIME/DIV : 500 ns
RF level 0.8 to 0.95 Vp-p
CN501
To watch the eye pattern, set the oscilloscope to AC range and increase the vertical sensitivity of the oscilloscope for easy watching.
TP507 (RF)
5.
Stop revolving of the disc motor by pressing the x button.
IC402
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