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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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I was at first dubious about payiong for downloaded manuals but having done so, I was extremely impressed with quality of the two manual I ordered, well worth the small price I paid.
I would highly recommend these to my friends.
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reasonable price for the schematic - the service is perfect, all as expected and pointed by instructions - good scan of the original plans - thank you!
(5) Lighting in green, and then in red (Alarm of power voltage error) Unlike [lighting in red] in the STANDBY mode, [lighting in green] continues for about 30 seconds without any output of images and audio signals. Since then, the mode turns into [lighting in red]. Lighting in red (Caution) How to reset the alarming condition The alarming condition can be reset when an OFF� ON setting is repeated twice for the main power supply in the state that the LED is lit in red. The interval between the first and second settings is not particularly specified.
Make an OFF � ON setting twice for the main power supply in order to reset the alarming condition. NO Is the LED lit in red after it has been lit in green for about 30 seconds? YES YES When the main power supply is turned on in the state that the AD, PD, and PH connectors are disconnected, are there the Vs (170Vdc) and Vd (60Vdc) outputs at Pins to Pins of the PD con-
Normal
The PDP is fault. (Caution) The voltage values of Vd and Vs can differ according to the PDP. The method of checking these voltage values is obtainable from [2. Adjustment of the power unit] in the method of adjustment.
9-0 nector and a 5Vdc output at Pins 1-2 of the PH
At that time, however, no images are generated. NO
6-7
connector? In this case, is the LED not turned in red after it has been lit in green for about 30 seconds?
YES When the main power supply is turned on in the state that the PA and PV connectors are disconnected from one after another, is there a 12Vdc output at Pins of the PA connector or the 12Vdc and 6Vdc outputs at Pins and of the PV connector? In this case, is the LED not turned in red after it has been lit in green for about 30 seconds? The MAIN PWB or the AUDIO PWB is fault.
1-3
1
3-4
NO NO When the main power supply is turned on in the state that the PA and PV connectors are returned to their original conditions, are there a 3.3Vdc output at Pins and a 2.5Vdc output at Pins of the PN connector? The Power unit or the PN connector is fault.
9
1-3
7-
YES NO Is there a 3.3Vdc output at Pin 96 of IC9501 in the MAIN PWB? (Refer to the PWB layout diagram on Page P4-19 or 20.) YES The Power unit is fault. The MAIN PWB is fault.
3-7
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