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AIWA LCXK277
Service Manual


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

Description of AIWA LCXK277 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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Text excerpt from page 26 (click to view)
Pin No. 32 33

Pin Name RF_I RF_O

I/O I O

Description Input terminal by capacity combination of RF summing amplifier. Output terminal of RF summing amplifier. Checkpoint of Eye pattern. Anti-reverse input terminal for RF summing amplifier.

34

RF_M

I

The gain of RF amplifier is decided by the connection resistance between RF_M and RFO terminals.

35 36 37

RFTC LD PD

I O I

This is a pin where the selection time constant is externally connected to control the RF level. APC amplifier output terminal. APC amplifier input terminal. RFI-V amplifier inverted input pin.

38, 39

PD1, PD2

I

These pins are connected to the A+C and B+C pins of the optical pickup, receiving by currents input.

40

FEBIAS

I/O

Bias adjustment pin of the focus error amplifier. F and EIV amplifier inverted input pins.

41, 42

F, E

I

These pins are connected to the F and E of the optical pickup, receiving by current input.

43 44 45 46 47 48 49 50 51 52

EI VEE TEO LPFI TEI ATSC TZC TDFCT VC FZC

â â O I I I I I O I

Gain adjustment pin of the I-V amplifier E. (When not in use of BAL automatic adjustment) GND connection pin. Output terminal for tacking-error amplifier. Output E-F signal. BAL adjustment comparator input pin. (Input through LPF from TEO) Input terminal for tracking error. Window-comparator input terminal for detecting ATSC. Input terminal for tracking-zero cross comparator. Capacitor connection pin for the time constant used when there is defect. Output terminal for DC voltage reduced to half of VCC+VEE. Input terminal for focus-zero cross comparator.

38

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