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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.
3 CCD (IC802) A charge-coupled device in which charges are introduced when light from a scene is focused on the surface of the device. The image points are accessed sequentially to produce a television-type output signal.
532(H) 508(H)
Effective picture element: 249,936 = 508 (H) x 492 (V) PHIS1~PHIS4: Clock pulse for the storage.
PHI4 3 PHI3 4 5 PHI2 PHI1 6
Amp. VGG Output VOG
PHIR 7 VDD 8 Vout 9 12 13
Sample Hold,
Image pickup
500(V)
PHI1~PHI4: Clock pulse for the image pickup. PHIH1~PHIH2: Clock pulse for the horizontal shift register. PHIR: CCD analog signal output.
PHIH2
Storage
PHIS4 PHIS1 PHIS2 PHIS3
19 18 17 16
Horizontal shift register (CCD)
PHIH1
15
492(V)
14
4 Camera Signal Processor (IC801)
From CCD
AGC
8bit A/D Converter
D0~D7
D0~D7: Digital signal of the luminance and the color difference B-Y and R-Y signal. CCD IN: CCD analog signal input. VI1~VI4/VS1~VS4: Clock pulse for the CCD control signal.
to CCD
Timing Generator
From/to CPU
Sample Hold Selects a desired signal from the CCD. Timing Genarator Generates the clock pulse for the CCD. 8-bit AD converter Analog signal from the CCD is converted into 8-bit digital signal of the luminance and the color difference B-Y and R-Y signal. .
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