Aiwa FM-LMD811, Service Manual

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1. How to start the MD test mode
While pressing the “MD EJECT” key, connect the AC plug to the power outlet.
* Notes: 1) Ignore the mechanical abnormality and continue the required MD test mode operations while the test mode is on.
2) Playback and recording operations are not possible while the test mode is in progress.
2. Checking the MD test mode and checking the audio system output
1) When the test mode starts, the following message appears and the test mode becomes operable.
2) Checking the audio system output:
Check that a signal of 1 kHz, -17dB (140mV) is output from the MD mechanism output (D/A OUT) connector.
* Note: No signal is output from the speaker output or headphone output.
3. How to cancel the MD test mode
1) Press the “MD EJECT” key to remove the disc.
2) Disconnect the AC plug from the power outlet.
*
If the MD test mode is canceled by any methods other than the procedure described above, the machine may operate abnormally when the
power is turned on again. In this case, disconnect the AC plug.
4. How to switch to the servo standby mode
Once the test mode has been set up, the machine mode is changed to the servo standby mode when the “STOP” key is pressed (“ALL SV OFF”
is displayed). From this mode, the machine can enter the various check modes listed below. When the “STOP” key is pressed, the machine
returns to the “ALL SV OFF” state from the other operating modes.
5. Checking the sled move operation
Both the lens and the pickup move in the direction of the inner circumference or the outer circumference when the “F.SKIP” key is pressed in
the machine’s “ALL SV OFF” state. The pickup moves to the innermost track and the “JAZZ” display lights up when the “INSIDE LIMIT SW”
key is pressed.
The pickup moves in the direction of
the outer circumference.
The pickup moves in the direction of the
inner circumference
(“JAZZ” lights up at the innermost track).