Test Mode - Sharp MD-MX30 Service Manual

Press specified buttons simultaneously to enter the following test modes.
System section
TEST 1: Factory setting (version number and destination)
TEST 2: Soft reset
MD section
TEST 3: MD test 1 (adjustment, test, etc.)
CD section
TEST 4: CD test
Tuner section
TEST 5: Tuner test frequency preset
TEST 6: Tuner preset clear
Entering the test mode
While holding down the following 2 buttons, press the ON/STAND-BY button to enter each test mode.
Name
TEST1 Factory setting
TEST2 Soft reset
TEST3 MD test 1
TEST4 CD test
TEST5 Tuner test
Frequency preset
TEST6 Tuner preset clear
System section
TEST 1 Factory setting test mode
Object: Putting the unit in default state.
Function: Checking existence of CD and MD and reinitializing all functions.
Operation: The unit performs CD initial operation and checks existence of CD.
If a CD exists, "CD OPEN" appears and tray opens in CD mode then the unit enters the normal power-on state.
Ejecting MD
While disc existence check, program version and preset destination appear according to the display.
When disc existence check is completed, the unit reinitializes all settings and displays "FINISH" according to the display and
prohibits every button input including power supply operation.
Leaving the test mode
The unit returns to normal operation by connecting and disconnecting the power supply cord.
Item
Version and destination display
CD presence
Setting end
Destination is displayed by its name.

TEST MODE

Level meter
"Center Bar"
– Setting the unit to default.
– Reinitializing the unit.
Flashing Setting MD microcomputer to test mode
Flashing Testing CD mechanism, hard
– Presetting test frequency
– Clearing all preset settings
Table 15-1 Test mode entry
Type
Sub-display 1 2
V
Operation C D
Function
F I
Table 15-2 Character display
Description
Character display
3 4 5 6 7 8
H
* * *
Number
O P E N
N I S H
– 15 –
MD-MX30/MX30W
Button1 Button2
[SURROUND] [ENTER]
[SURROUND] [DELETE]
[SURROUND] [MD-PLAY]
[X-BASS] [>>]
[TUNER] [MD-PLAY]
[TUNER] [MD-STOP]
Remarks
: 9 10 Sub-display
: