CD-DVD500 (serv.man22) - Sharp Audio Service Manual (repair manual). Page 20

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CD-DVD500H
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TEST MODE
During POWER off mode, push below each 2 keys and [POWER] key.
Then go to each TEST MODE.
KEY
TEST MODE
CONTENTS
[POWER]  [TUN] + [X-BASS]
TEST 1
TUNER PRESET MEMORY CLEAR
[POWER] [MEMORY/SET] + [X-BASS]
TEST 2
TUNER PRESET FOR PRODUCTION
Test mode for the production and display
TEST 3
Test mode for the production
[POWER] [CD] + [X-BASS]
TEST 4
Ver. No Display (DVD Microcomputer)
Test mode for the production and display
TEST 5
Test mode for the production
[POWER] [>] + [X-BASS]
TEST 6
ALL CLEAR (RESET)
Test mode for the production and display
TEST 7
Test mode for the production
[POWER] [TUN DOWN] + [X-BASS]
TEST 8
PRODUCTION INITIALIZE FOR CHANGER
Test mode for the production and display
TEST 11
Test mode for the production
[POWER] [<<] + [X-BASS]
TEST 12
Ver. No DISPLAY (SYSTEM MICROCOMPUTER)
[POWER] [CD] + [G.EQ]
TEST 15
DVD MICROCOMPUTER (ROM Renewal Mode)
TEST MODE 1 (Write in, operation manual, open to user)
Work:
Clear all TUNER PRESET MEMORY.
Function: - TUNER
- BAND: FM ST
- FREQUENCY RECEIVE: F.L. (MINIMUM FREQUENCY)
Figure:
The above figure: Displayed for about 1.0 sec
Other conditions: - Same as TEST MEMORY.
After Action: - Normal operation.
MEMORY
TUNER CL
RUN TEST 1
Clear all TUNER PRESET MEMORY.
Bring BAND SETTING FREQUENCY into operation .
POWER ON
NORMAL OPERATION
"TUNER CLEAR          " is displayd for 1sec.
MEMORY
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