KENWOOD DMS500
Manual de Servicio

DM-S500
ADJUSTMENT
Note: Numerals on the display appear the error rate and ADIP error. 3. Terminating the continuous playback mode (1) Press the STOP key. The display then changes to �CPLAY MODE�. (2) Press the EJECT key to take out the disc. Note : The playback start addresses of IN, MID, and OUT are described below. IN MID OUT 30H cluster 300H cluster 700H cluster
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2-5 Other key function
Function 3 Description Plays back continuously when this key is pressed during stop. Turn on and off the tracking servo when it is pressed during continuous playback. Stops the continuous playback and recording. The thread moves to the inner circumference while this key is pressed. The thread moves to the outer circumference while this key is pressed.

Note : An erasure prevention control is not detected in the test mode. Notice that recording is performed irrespective of the erasure prevention control position when the REC key is pressed.

2-4-2 Operation in continuous recording mode 1. Entering the continuous recording mode (1) Insert a recordable disc into the unit. (2) Turn the SHUTTLE to display �CREC MODE�. (3) Press the PLAY key. The display then changes from �CREC MODE� to �CREC MID�. (4) Press the PLAY key again. The display changes from �CREC MID� to �CREC (####)�, and the continuous recording is started. Note : Numerals on the display (####) appear the address of recording point. 2. Change the recording point. (1) Turn the SHUTTLE to clockwise while �CREC MID� is displayed. The display changes as follows. (The recording point can be shifted.) MID OUT IN (2) Press the ENTER key. The display then changes to �CREC(####)�, and the continuous recording is started. Note : Numerals on the display (####) appear the address of recording point. 3. Terminating the continuous recording mode (1) Press the STOP key. The display then changes to �CREC MODE� and the REC display goes off. (2) Press the EJECT key to take out the disc. Notes : 1. The recording start addresses of IN, MID, and OUT are described below. IN 30H cluster MID 300H cluster OUT 700H cluster 2. The STOP key can be pressed at any time to stop the recording. 3. An erasure prevention control is not detected in the test mode. Be careful not to enter the continuous recording mode using a disc containing the data that should not be erased. 4. Do not record continuously for more than five minutes. 5. Take care that no vibration is applied during continuous recording.

2-6 Precaution on use of test mode
0 An erasure prevention control is not detected in the test mode. Therefore, when the recording laser power mode such as continuous recording mode and traverse adjustment mode is entered, the contents of the existing recording are erased irrespective of the control position. Be careful not to enter the continuous recording mode and traverse adjustment mode when using a disc, containing the data that should not be erased, in the test mode.

3. Electrical adjustment
3-1 Precaution during confirmation of Laser Diode emission
During adjustment, do not view the emission of a laser diode from just above for confirmation. This may damage your eyes.

3-2 Precaution on handling of Optical pick-up (KMS-260A)
The laser diode in an optical pick-up is easy to be subject to electrostatic destruction. Therefore, solder-bridge the laser tap on the flexible board when handling the optical pick-up. When removing the flexible board from the connector, make a solder bridge in advance, then remove the board. Be careful not to remove the solder bridge before inserting the connector. Moreover, take careful measures against electrostatic destruction. The flexible board is cut easily. Handle the flexible board with care.
Pick-up Flexible board

Laser tap

3-3 Precaution during adjustment
1) Perform the adjustment and confirmation marked with �O� in the order shown in the table when the parts below are replaced.

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