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CASIO 240CR
Service Manual


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

Description of CASIO 240CR 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 13 (click to view)
[PWD signal] After plug the AC cord into outlet, VP voltage appears on the base terminal of transistor Q3. When the VP exceeds 13 volts, Q3 is turned on by the differential voltage between base and emitter of Q3. Then the PWD signal goes to GND level and informs "power on" to the CPU. When the VP drops less than 13 volts, Q10 is turned off. Then the PWD goes high level since the PWD is pulled up to VDD and makes the CPU go "Power failure process". Note : During plug the AC cord into outlet, all voltages are supplied to the PCB. If you open the machine for repair, make sure plug off. [Voltage and check points in the power supply circuit] Actual value on the E245-1 PCB [unit : V]

Check point Power on

A 23.2 V (AC)

B 3 0

C 17.9

D 1 9

E 5.9

F 6.5

G 4.3

H 0.0

I 0

J 5.6

K 4.8

C

B

E

D

F

I

J

G H

K

Voltage check position
â 11 â

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