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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!
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This service manual have great value... Recommended A+++++++
XM-280GTX SECTION 3 DIAGRAMS
2-4. MAIN BOARD
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS. (In addition to this, the necessary note is printed in each block.) for schematic diagram: Note: � All capacitors are in µF unless otherwise noted. pF: µµF 50 WV or less are not indicated except for electrolytics and tantalums. � All resistors are in � and 1/4 W or less unless otherwise � � � � � � � specified. % : indicates tolerance. 2 : nonflammable resistor. A : B+ Line. B : B� Line. Power voltage is dc 14.4V and fed with regulated dc power supply from +12V and REM terminals. Voltage is dc with respect to ground under no-signal condition. Voltages are taken with a VOM (Input impedance 10 M�). Voltage variations may be noted due to normal production tolerances. Waveforms are taken with a oscilloscope. Voltage variations may be noted due to normal production tolerances.
3 P 3x8
�
5 MAIN board 2 P 3x8
� Circled numbers refer to waveforms. � Signal path. F : AUDIO
1 P 3x8 4 panel (front)
for printed wiring boards: Note: � X : parts extracted from the component side. � : Pattern from the side which enables seeing. (The other layer�s patterns are not indicated.) Caution: Pattern face side: Parts on the pattern face side seen from the (Side B) pattern face are indicated. Parts face side: Parts on the parts face side seen from the (Side A) parts face are indicated.
2-5. LED BOARD
1 P 3x6
3-1. IC BLOCK DIAGRAM
2 LED board
IC8 TL494CN
OUT VCC C2
11 16 15 14 13 12 REF 5V 10
E2
9 6 78
heat sink (main)
ERROR
ERROR 1 2 3
0.1V
OSC
4
5
-IN INV
TIME
� Waveform
1
1V/DIV, 5µsec/DIV 3.4Vp-p 15µsec
COMP EN VREF
IC8
5
9
9
GND C1 E1
+IN NON
RT
CT
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