Sony DSR-250, Service Manual

Page: 8 / 322

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SERVICE NOTE
1. TO TAKE OUT A CASSETTE WHEN NOT EJECT (FORCE EJECT)
1
Refer to 2-6. to remove the cabinet (L) assembly.
2
Remove the shoulder pad.
3
Remove the CN4300 (2P) of VI-156 board.
4 Remove the CN501 (2P) of VI-156 board.
5
4.5V from the DC power supply to the cam motor and unload the tape guide.
6
Rotate the idler gear by your finger to the clockwise and remove the tape slack.
7
4.5V from the DC power supply to the FL motor (Cassette motor) and unload the cassette.
What to do when a user forgets a password
This camcorder has the forced log insertion function. A password is inputted, and this function is set up. When this function was set up, this
camcorder doesn’t move if the memory stick which memorize a correct logo isn’t inserted. To release the forced logo function, the correct
password must be input.
This password is memorized in the IC1105 (EEPROM) on VI-156 board. Therefore, when a user forgets the password, replace the IC1105.
This IC1105 memorizes the HRS METER data (Hour meter data: page A, address 00 to 13), too. Therefore, replace the IC1105 in the
following order to copy the HRS METER data.
Replacing procedure:
1)
Note down the data of page A, address 00 to 13.
2) Replace IC1105 (EEPROM) on VI-156 board.
3) To page A, address 00 to 13, input the data noted down.
(Refer to “HRS METER (Hours meter)” of “5-4. SERVICE MODE”)
CN4300 2P
CN501 2P
2
Remove the
shoulder pad.
6
Remove the idler gear and
remove the tape slack.
7
Unload the
cassette.
5
Unload the tape guide.
3
Disconnect CN4300
4
Disconnect CN501
DC power supply (4.5Vdc)
Cam motor
FL motor