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let's say first that i do not need to have a credit for my opinion, i am a retired sparkie and i voluteerd to fix an electronic device for a local "Youthgroup",as no diagram was present i checked the "net" and gambled on this site and paying some fee via PayPall, i was gladly surprised that the manual arrived as was stated, GOOD SHOW, and best wishes, John
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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.
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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.
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Once again, excellent price and manual delivered in a timely manner and as advertised!
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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!
DPC-781/782/981
ADJUSTMENT
No. ITEM INPUT SETTING OUTPUT SETTING PLAYER SETTING ALIGNMENT POINT ALIGN FOR On the power from 0.08 to 0.15 mW, when the diffraction grating is correctly aligned with the RF level of 1.0 Vp-p or more. FIG. Apply the sensor Short the test land. Confirm section of optical that the display is power meter on " ". the Press FF Key and confirm pickup lens. that the display is 03. Connect an oscilloscope as follows. CH1:RF (Check-land RF) CH2:T1 (Check-land TE1) Connect an oscilloscope as follows. CH1:RF (Check-land RF) CH2:T1 (Check-land TE1)
1
LASER POWER
�
�
�
2
FOCUS ERROR
Test disc KTD-03
Press the PLAY key . Confirm that the display is "05".
FE BALANCE VR3
Optimum eye pattern
�
3
TRACKING ERROR
Test disc KTD-03
Press the FF key. Confirm that the display is " ".
TE BALANCE VR5
Symmetry between upper and lower
�
4
FOCUS GAIN
Test disc KTD-03 Apply Connect a LPF signal of between Check1.0kHz, land F1 and F2 to 0.05Vrms which connect an between oscilloscope or AC Check-land F1 voltmeters. and F2.
Press the PLAY key . Confirm that the display is "05".
FOCUS GAIN VR4
Two VTVMs should read the same value.
(d)
5
Test disc KTD-03 Apply Connect a LPF signal of between CheckTRACKING 1.0kHz, land T1 and T2 to GAIN 0.05Vrms which connect an between oscilloscope or AC Check-land T1 voltmeters. and T2.
Press the PLAY key . Confirm that the display is "05".
TRACKING GAIN VR6
Two VTVMs should read the same value.
(e)
Note: Test DISC KTD-03, TCD-783 or equivalent LPF : Around 47k� + 390 pF or so. Step 1~5 are in Test Mode.
(d) Focus Gain Two VTVMs should read the same value.
AC voltmeter
(e) Tracking Gain Two VTVMs should read the same value.
AC voltmeter
F1 F2
1.0kHz 0.05Vrms
L.P.F
T1 T2
L.P.F
VC
L.P.F
1.0kHz 0.05Vrms
VC
L.P.F
4
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