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Service Manual

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

Description of AIWA XCRW500 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.
136 137 138 139 140 141 142 143 144

Pin Name

I – I – I – I – I Address latch enable. Not used. Bus high enable. Not used. Read signal. Not used. IDE enable. Not used. IDE direction.


IC, BU2872AK Pin No.
1~4 5 6 7 8 9 10 ~ 13 14 15 ~ 25 26 27 28 ~ 37 38 39 ~ 42 43 44

Pin Name
SW1 ~ SW4 SO SI VSS SCK CS K1 ~ K4 VDD S1 ~ S11 G11 VEE G10 ~ G1 VDD L4 ~ L1 VSS OSC

I O I I I I I I O O I O I O I I/O transmission. (Connected to VSS) Serial data are output to higher bits. Serial data are input from higher bits. Connected to system ground. Serial data is fetched at start-up.

General purpose input terminal. The input data can be sent to microprocessor in serial

Serial initialization at "L". Valid when "H". Key scan data input terminal. Connected to system power supply. Segment output terminal. Output is P-channel open drain having pull-down resistor. Output terminal for grid. Output is P-channel open drain having pull-down resistor. Pull-down resistor for driver output is connected to this terminal. Output terminal for grid. Output is P-channel open drain having pull-down resistor. Connected to system power supply. LED output terminal. CMOS output. (Pin 39 not used) Connected to system ground. External capacitor for oscillation is connected to this terminal.

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