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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.
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VDET Operation
A
V+5D V+5V R1941 1K D1932 D1933 D1934 Q1931 R1942 47K R1937 10K V+2R3 V+3R6
V+6
V+12
Q1931
VDET
Terminated with 1 M� at the main unit side.
1M
R1940 10K
R1934 22K R1935 18K
D1931 UDZS5.1B
B
Each power supply:
V+6 V+12 V+5D V+5V V+3R3 V+3R6 : 6V is supplied from PRE5V by 3 terminal Regulator. : 12V (VDVD+12) is supplied from the main unit. : Each voltage is supplied from PRE5V by 3 terminal Regulator. : Voltage is supplied from PRE5V by DC-DC converter.
C
VDET Operation:
1 When PRE5V disappeared 2 When the voltage of V+6 fell : VDET becomes low because V+3R6 disappears,too. : The base voltage of Q1931 falls, and become operating voltage. Q1931 turns ON, and Q1932 turns ON, too. And VDET becomes low. : The base voltage of Q1931 falls, and become operating voltage. Q1931 turns ON and Q1932 turns ON, too. And VDET becomes low.
3 When the voltage of V+12 fell
D
4 When the voltage of V+3R6 rose : The voltage rises as VDET = V+3R6. This voltage is not raised than Vz of (UDZS5.1B) by Zener diode. 5 When the voltages of V+5D, V+5V and V+3R3 rose : When these voltage rose, and the emitter voltage of Q1931 became operating voltage, Q1932 turns ON and VDET becomes low.
7.4 CLEANING
E
Before shipping out the product, be sure to clean the following positions by using the prescribed cleaning tools : Position to be cleaned Pickup leneses Fan Cleaning tools Cleaning liquid : GEM1004 Cleaning paper : GED-008 Cleaning paper : GED-008
F
150
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XV-SV5DV
3 4
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