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PIONEER CX893
Service Manual


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  • Contains Circuit Diagrams
  • Download
  • PDF Format
  • Complete manual
  • Language: English
Price: $4.99

Description of PIONEER CX893 Service Manual

Complete service manual in digital format (PDF File). Service manuals usually contains circuit diagrams, printed circuit boards, repair tips, wiring diagrams, block diagrams and parts list. Service Manual ( sometimes called Repair Manual ) is used mainly by technicians.

If You just want to know how to use Your tv, video, mp3 player etc. You should look for Owner's Manual. After placing order we'll send You download instructions on Your email address.

The manual is available in languages: English

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High-quality scanning. Detailed description. Recommend for all technician. A+++
 5606 MAMBINO NORDMENDE Service Manual by Henry Hyman;
This is a good quality scan of the original Service Manual from Nordmende, Germany. Contains the circuit diagram, PCB layout, adjust/tune instructions as well. It is NOT in English but in GERMAN language! That was quite right for my german friend from the lower east side in Berlin.
 FR-5080S SANYO Service Manual by Anders Nerdrum;
Received via e-mail this PDF manual is worth the money. This is a quality scan of a manual in excellent condition and is just as good as having the original manual in hand. I have later seen the original manual and it was printed in colour, but this particular manual is black & white but scan resolution is high end quality! All drawings and pictures are presented in great detail. So, nearly perfect score in my opinion. If you own the turntable you also should own the manual!
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I was very satisfied with the service manual I ordered and downloaded. I will definitely buy again from this seller.
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Great product. Recieved it fast...exactly as advertised.

Text excerpt from page 11 (click to view)
CX-893

1.4 Mechanical control
1) Loading
The microprocessor instructs the motor driver IC651 to rotate backward (IC651: 3 pin: L, 4 pin:Ht¨L+: L, L-:H) if LOAD STRAT SW (SW652) detects OFF (LOAD STRAT=H). If LOAD STRAT SW (SW652) detects ON (LOAD END=L) later, the microprocessor instructs the motor driver IC651 to stop (IC651: 3pin: H, 4pin:Ht¨L+: L, L-:H) and completes the loading and then transits to PLAY operation. If DISC IN SW (SW903) is OFF (DISC IN=H) or LOAD END SW has been OFF for a long time, the microprocessor determines that there is no inserted disc or a disc insertion error and performs EJECT or Error STOP.

2) EJECT
The microprocessor instructs the motor driver IC651 to positively rotate (IC651: 3 pin: H, 4 pin:Lt¨L+: H, L-:L) when it receives the EJECT instruction. If EJECT END SW (SW653) detects ON (EJECT END=L) later, the microprocessor instructs the motor driver IC651 to stop (IC651: 3pin: H, 4pin:Ht¨L+: H, L-:H) and completes the EJECT operation.

1.5 Others
1) Temperature detection
This module detects high temperatures, to protect PU. When the temperature of the output from the temperature sensor (IC402) exceeds a certain voltage level, it is determined as high temperature and an appropriate process such as Error STOP will be performed. The ambient temperature which causes that high temperature on the module is approximately 80 degree Celsius.

2) Voltage monitoring
This module monitors voltage to protect the system. The signals which are resistive divided (R803, 804) from the input VD from the product (CN301: 1,2) are monitored (IC401, 25 pin). If the voltage of the signal is higher than 2.86 V (VD7V or higher) or lower than 2.04 V (VD5V or lower), an appropriate process such as Error STOP will be performed.

11

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