|
Who's Online
There currently are 5998 guests online.
|
Categories
|
Information
|
Featured Product
|
|
|
|
|
There are currently no product reviews.
;
I had been looking for a Manual for my CS2150 for quite a while -- in fact I had just about given up. I saw this site and decided to download the Manual. When I Received it by Email I was really pleased with what I got, with the result that My Kenwood 'Scope is now 100% repaired and working well. As an AV Serviceman, you need a good 'scope, and thanks to this site, and the Service Manual, I have been able to repair it. The Manual was a copy of the Factory Original and the copy was very clear, especially in the area of the Circuit Schematics, where You really need to be sure of what You are looking at.
;
I recently purchased a manual for a Samsung DLP tv to help with a trouble shooting problem I was having. Every tv repair shop wanted close to $400.00 for the fix, but after I found Owner-Manuals.com I hit pay dirt. The manual they had for me to purchase and download was a complete service manual for the exact tv I needed. It was complete with wiring diagrams, schematics, and even part numbers. If your the fix it yourself type I highly recommend trying to find any manual here before paying someone else to fix whatever problem your having.
;
Once again, excellent price and manual delivered in a timely manner and as advertised!
;
Outstanding quality manual. This is the exact documentation I needed to service my AKAI GX-210D. This is a PERFECT COPY of the service manual for my machine. Outstanding service. Thank-you!
;
This service manual have great value... Recommended A+++++++
FLOW CHART NO.6 FLOW CHART NO.9
NO YES YES Is the supply voltage 5V feed to pin(3) of IC1706? Does take-up turn when the capstan Check disk and reel drive unit. YES motor is running? Is voltage more than about 2.6V applied at NO Check between pin(46) of IC1701 and all the way YES IC1706? up to pin(2) of IC1706. Are pulses applied at pin(2) of IC1701 when NO Check take-up reel sensor and all the YES take-up reel disk is turning? way up thru to pin(2) of IC1701. NO YES Is the supply voltage feed to pin(21) of IC1706? Check PC 12V line. YES
The cassette tape fails to eject. The drum motor fails to run. Is the voltage more than about 2.6V DC given out Check IC1701. Does capstan motor start when the EJECT NO See FLOW CHART NO.8. NO Check PC 5V line.
button is pressed? pin(46) of IC1701. <The capstan motor fails to run.>
NO
NO
Is a "H"(about 4.7V) level applied at pin(12) Check pin(90) of IC1701. IC1706 when a reel pules has been inputted? Check or replace drum motor. NO NO NO the loading motor.
YES
Is the voltage about 10V sent out pin(15) of IC1706? Check IC1706. FLOW CHART NO.10
YES The drum motor runs only for a few seconds. Replace IC1706.
Is specified voltage applied at loading Check between IC1706 and all the way up thru to NO motor terminal? Is drum PG signal given out pin(7) IC1706? Check pins(4), (5), (6) of IC1706 and periperal circuits.
YES NO way up thru to pin(66) of IC1701. YES
Dose the motor run? Replace loading motor. Check or replace drum motor.
NO
YES
Replace cassette cam, gear, etc. Is drum PG signal given out pin(66) IC1701? Check line between pin(7) of IC1706 and all the
FLOW CHART NO.7 NO
NO Replace IC1701. Does power control(H) signal at pin(4) of IC1701 Check IC1701. YES
No power is turned on. Is V-H.SW.P pulse given out pin(23) of IC1701? Check IC1701.
change from "L" to "H" level? NO
45
No head switching pulse. Does base Q1951 change from about 5.0V Check pin(4) of IC1701 and all the way up thru
NO
YES FLOW CHART NO.11
4.5V? to Q1952.
YES Is the drum motor rotating? See FLOW CHART NO.9, 10
NO <The drum motor runs only for a few seconds> NO
NO
Is sent out collector of Q1951? Check Q1951 and the STBY 5V line. YES <The drum motor fails to run>
FLOW CHART NO.8
on pins(66) and (65) of IC1701, respectively? D-FG D-PG
NO About 5Vp-p Check PC line. Is the supply voltage 5V feed to pin(8) of AC
The capstan motor fails to run. Is the PG and drum FG signal present Replace IC1701.
Is the voltage more than about 2.6V DC given out Check IC1701. YES pin(29) of IC1701.
YES
connector? Are the PG drum FG signals present on NO Check line between pins(7), (8) of IC1706 and all
the way up thru to pins(65), (66) IC1701. YES pins(7) and (8) of IC1706?
Is voltage more than 2.6V DC sent in NO Check between the pin(4) of AC connector and all YES AC connector? the way up thru to pin(29) of IC1701. Check periperal circuit of IC1706. NO
YES
Is approx. 3.5V applied to pin(3) AC Check the pin(92) of IC1701. connector? NO
YES
Is applied to pin(5) of the AC connector Check AT 23V line. normally?
YES
Replace capstan motor.
DV-NC55U/C/M
|
|
|
> |
|