Sharp IM-MT899H Service Manual page 18

IM-MT899H/IM-MT899W
Do the following when replacing the mechanism, the pickup, the
EEPROM (IC402), the LSI(IC201) or the main PWB unit.
Enter the test mode, move the pickup to the most internal periphery and execute AUTO1.
(Use the disc of MMD-213A.)
A U T O 1
PLAY
A T 1
A D J . O K
PLAY
A T 2
A D J . O K
The indication of RAMDOM
A P # # # #
B Y E
Indication disappears.
All the supply of the power supply is turned off.
Use serviceable EEPROM (RH-IX2988AFZZ) for replacement.
The serviceable EEPROM is dedicated to MT899 with an authentication ID.
After replacement, write the default value in the microcomputer, and change it to the set value of
the latest version.
Note) After that, be sure to perform the shipment setting.
(The battery indicator starts to operate correctly after you complete the setting.)
Test Mode Start · Completion method
• Starting method of the test mode
When the unit is in the stand-by state (with no display), the test mode is started by performing
the following operation using the remote control.
Press the [PLAY] button while pressing the [MODE/DISPLAY] button, and release the [MODE/DIAPLAY] button
while keeping the [PLAY] button pressed, and press the [VOLUME–] button.
Indication after the start :
T E S T
Volume –
All the lighting
• How to cancel the test mode
T E S T
STOP
B Y E
B Y E
(During the spare style automatic adjustment.)
Normality completion.
(During the adjustment that ATT is automatic.)
Normality completion.
Remote controller MODE/DISPLAY button.
(During the focus balance adjustment.)
(Adjustment completion.)
PLAY is pushed.
(Continuance is regenerating.)
It confirms that an address proceeds.
STOP2 is pushed.
O K
Volume+
EEPROM version
Destination
Program version
: LCD all the lighting two seconds
: Test mode stop
: [OK] or [NG]
O K
Check the microcomputer RAM and EEPROM with
the contents of the preliminary adjustment.
Pickup position initialisation
POWER OFF
EEPROM contents renewal.
(In such cases as the battery.)
: To the test mode stop ([Test mode menu])
Performance mode =Normal
Playback volume =28
LINE REC volume =30
Microphone REC volume =20
Resume setting =Cancellation
: Version indication 2 seconds
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