Sony HCD-C5 service manual When Memory NG is Displayed, Record Procedure, Display Precedure

IOP DATA RECORDING AND DISPLAY WHEN OPTI- CAL PICK-UP AND NON-VOLATILE MEMORY (IC195 OF BD (MD) BOARD) ARE REPLACED

The IOP value labeled on the optical pick-up can be recorded in the non-volatile memory. By recording the value, it will eliminate the need to look at the value on the label of the optical pick-up. When replacing the optical pick-up or non-volatile memory (IC195 of BD (MD) board), record the IOP value on the optical pick-up according to the following procedure.

Record Procedure:

1.Press the ?/1 button to turn the power on.

2.Press the FUNCTION z button to set the MD function.

3.Press three buttons of VOL - , x and CD SYNC HIGH , simultaneously to enter the MD test mode and display “[Check]”.

4.Press the . “R” or > “R” button to display “[Service]”.

5.Press the ENTER/YES “R” button to display “AUTO CHECK”, and press the > “R” button to display “Iop Write”.

6.Press the ENTER/YES “R” button.

7.The display becomes “Ref= @@@.@” (@ is an arbitrary num- ber) and the numbers which can be changed will blink.

8.Input the IOP value written on the optical pick-up.

To select the number : Press the

.“R” or > “R” button.

To select the digit : Press two buttons of VOL - and

CD Z simultaneously.

9.When the ENTER/YES “R” button is pressed, the display becomes “Measu=@@@.@” (@ is an arbitrary number).

10.As the adjustment results are recorded for the step 9 value. Leave it as it is and press the ENTER/YES “R” button.

11.“Complete!” will be displayed momentarily. The value will be recorded in the non-volatile memory and the display will become “Iop Write”.

12.Press the REPEAT “R” button, or press two buttons of VOL - and MD Z simultaneously. to complete. “Initialize” will be displayed and release the MD test mode.

Display Precedure:

1.Press the ?/1 button to turn the power on.

2.Press the FUNCTION z button to set the MD function.

3.Press three buttons of VOL - , x , and CD SYNC HIGH simultaneously to enter the MD test mode and display “[Check]”.

4.Press the . “R” or > “R” button to display “[Ser- vice]”.

5.Press the ENTER/YES “R” button to display “AUTO CHECK”, and press the >“R” button to display “Iop Read”.

6.Press the ENTER/YES “R” button.

7.“@@.@/##.#” is displayed and the recorded contents are dis- played.

@@.@ : Indicates the Iop value labeled on the pick-up.

##.# : Indicates the Iop value after adjustment.

8.Press the REPEAT “R” button to complete. “Initialize” will be displayed and release the MD test mode.

HCD-C5

WHEN MEMORY NG IS DISPLAYED

If the nonvolatile memory data is abnormal, “E001 MEMORY NG” will be displayed so that the MD deck does not continue opera- tions. In this case, set the test mode promptly and perform the following procedure.

Procedure:

1.Enter the MD test mode.

2.Normally a message for selecting the test mode will be displayed. However if the nonvolatile memory is abnormal, the following will be displayed “INIT EEP?”.

3.Press the x and MD Z buttons simultaneously.

4.Press the .“R” or >“R” button to display “MDM-7B4M”.

5.Press the ENTER/YES “R” button. If the nonvolatile memory is successfully overwritten, the normal MD test mode will be set and a message to select the MD test mode will be displayed.

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