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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.
HCD-GSX100W
Record/Playback Head Azimuth Adjustment Procedure: 1. Mode: Playback (FWD)
test tape P-4-A100 (10 kHz, � 10 dB) SPK board SPEAKER terminal (J357) L-CH, R-CH
Adjustment Location: Record/Playback/Erase Head
level meter
set + �
Head azimuth adjustment screw
2. Turn the adjustment screw and check output peaks. If the peaks do not match for L-CH and R-CH, turn the adjustment screw so that outputs match within 1dB of peak.
L-CH peak Output level
within 1dB within 1dB
Tape Speed Check Mode: Playback
Screw position
test tape WS-48B (3 kHz, 0 dB) set
Screw position
R-CH peak L-CH peak R-CH peak
frequency counter
+ � SPK board SPEAKER terminal (J357) L-CH, R-CH
3. Mode: Playback
test tape P-4-A100 (10 kHz, � 10 dB) L-CH SPK board SPEAKER terminal (J357) L-CH oscilloscope
set R-CH R-CH
V
H
1. Insert the WS-48B into the deck. 2. Press the bB button on the deck. 3. Confirm that the frequency counter reads 3,000 ± 90 Hz. Sample value of Wow and Flutter: 0.3% or less W.RMS (JIS) (WS-48B)
waveform of oscilloscope
in phase 45° good
90° 135° 180° wrong
4. Reapeat step 1 to 3 in playback (REV) mode. 5. After the adjustments, apply suitable locking compound to the parts adjusted.
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