XL-MP8H (serv.man4) - Sharp Audio Service Manual (repair manual). Page 8

XL-MP8H

2 – 2

Turning on the test mode

To turn on the specific test mode, press the ON/STAND-BY button, holding down the following two buttons in the ordinary stand-by mode (power off
state). In this case only the main unit button is valid. Even when the ON/STAND-BY of remote control button is set to on, the test mode is not turned
on.

[Ordinary test mode]

1. CD Test Mode (TEST 1).....................FUNCTION+Tuning Down

2. Tuner Test Mode (TEST 2).................FUNCTION+Preset Down

3. Volume Test Mode (TEST 3)...............FUNCTION+Tuning Up

4. Timer Test Mode (TEST 4)..................FUNCTION+Preset Up

5. Display Test Mode (TEST 5)...............FUNCTION+Bass/Treble

6. ALL KEY Test (TEST 6)......................MEMORY/SET+Tuning Up

7. Tuner clear test (TEST 7)...................MEMORY/SET+Preset Up

8. Soft reset test (TEST 8)......................MEMORY/SET+Preset Down

All test modes can be terminated by turning off the power with ON/STAND-BY key.

• CD test (TEST 1)

In step 5, hold down the AUX key on the remote control. The tracking servo is switched on/off.

From step 3, the pick up can be moved with the FF/REW key.

• Tuner test (TEST 2)

• VOLUME test (TEST 3)

Starting from level 23 (default), check all the levels (0 - 23 - MAX).

• TIMER test (TEST 4)

At 1:05, the power turns on to activate the tape function, and turns off after 90 seconds (equivalent to 90 minutes on the unit).

• Display test (TEST 5)

When test mode is activated, the entire display lights up. As the “PLAY” key is pressed, half of the display lights up alternately.

• ALL KEY test (TEST 6)

In the test mode, hold down all the buttons on the main unit and then press the “ON/STAND-BY”button. “OK” appears.

If only the “ON/STAND-BY” button is pressed, “ERROR” appears.

[cd step 1] Enter test mode. 

←––––––––—

↓ Hold down the “memory” button

[cd step 2] After some steps, the laser turns on.

↓ Hold down the “memory” button

[cd step 3] After some steps, focus search is per-
formed.

↓ Hold down the “memory” button

[cd step 4] After some steps, CLV rotation is per-
formed.

↓ Hold down the “memory” button

[cd step 5] CD playback starts.

↓ Hold down the “stop” button to return to [cd step 1] ––––––––

A

A

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FM STEREO

FM87.50 MHz
FM108.00 MHz
FM98.00 MHz
FM90.00 MHz
FM106.00 MHz

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7
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9

AM

AM522 kHz
AM1620 kHz
AM990 kHz
AM603 kHz

10

AM

AM1404 kHz

11

⋅
⋅

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FM MONO

FM106.00 MHz
FM90.00 MHz
FM98.00 MHz
FM108.00 MHz
FM87.50 MHz