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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+++++++
SAFETY PRECAUTIONS
GENERAL GUIDELINES 1. It is advised to insert an isolation transformer in the
AC supply before servicing a hot chassis. 2. Always use the manufacturer�s replacement safety components. The critical safety components marked with on the schematics diagrams should not be by other substitutes. Other substitute may create the electrical shock , fire or other hazards. Take attention to replace the spacers with the originals. Furthermore where a short circuit has occurred , replace those components that indicate evidence of overheating. 3. After servicing , see that all the protective devices such as insulation barriers, insulation papers, shields and isolation R-C combinations are correctly installed. 4. When the receiver is not being used for a long time of period of time , unplug the power cord of the Adaptor from the AC outlet.
There are electro-static sensitive components such as CMOS in LCD Module. Please earth human body when handle the LCD.In addition, please do not touch the interface connector pin with bare. 8 - Do not operate for a long time under the same pattern Operating LCD for a long time under the same pattern can cause image persistence and can damage it. Please follow following guidance. 1. Turn the power off when do not use. 2. Change the pattern periodically. LEAKAGE CURRENT COLD CHECK 1. Unplug the AC cord and connect a jumper
between the two prongs of the plug. 2. Turn the receiver�s power switch. 3. Measure the resistance value with an ohmmeter, between the jumpered AC plug and each exposed metallic cabinet part on the receiver. When the exposed metallic part a return path to the chassis the reading should be between 4Mohm and the 20Mohm. When the exposed metal does not have a return path to the chassis, the reading must be infinite.
Color TFT LCD Module is very sensitive both electrically and physically.Users, therefore, are requested to follow the �Guidance of handling color TFT LCD Module�on the followings.
polarizer. Surface of polarizer is soft and can be physically damaged easily.Please do not touch, push or rub polarizer surface with materials over HB hardness. 2 - Keep clean the surface. Please wear rubber glove when touch the surface of LCD screen. Please use soft and anti-static material as cleaner. 3 -Keep out of water.Water on/in the LCD may cause electrical short or corrosion. Please wipe out dry or water carefully. 4 -Prevent swift Temperature & Humidity change.Instantaneous temperature and/or humidity change can make dew or ice which cause nonconformance such as malfunction. 5 - High temperature & high humidity reduce the life-time. LCD is not proper to be used at high temperature and high humidity. Please keep specified temperature and humidity condition. 6 - Keep out of Corrosive Gas.Corrosive gas effect the polarizer and the circuit chemically and cause defects accordingly. 7 - Electrostatic discharge can make Damage
1 -Be careful not to make scratch on the
LEAKAGE CURRENT HOT CHECK 1. Plug the AC cord directly in to the AC outlet. Do
not use an isolation transformer for this check. 2. Connect a 2Kohm 10W resistor in series with an exposed metallic part on the receiver and an earth, such as a water pipe. 3. Use an AC voltmeter with high impedance to measure the potential across the resistor. 4. Check each exposed metallic part and check the voltage at the each point.
5. Reverse the AC plug at the outlet and repeat each of
the above measurements.
6. The potential at the any point should not exceed 1.4
Vrms. In case a measurement is outside the limits specified , there is the possibility of a shock hazard , and the receiver should be repaired and rechecked before it is returned to the customer.
HOT CHECK CIRCUIT AC-Voltmeter
TO INSTRUMENTS EXPOSED METALLIC PARTS
Water pipe (earth)
2 K Ohm
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