Test Mode - Sony STR-DE400 Service Manual

STR-DE400
FACTORY PRESET MODE
All preset contents are reset to the default setting.
Procedure:
1. While depressing the
DIMMER buttons simultaneously, press the power ?/1
button to turn on the main power.
2. The message "FACTORY" appears and the present contents
are reset to the default values.
AM CHANNEL STEP 9 kHz/10 kHz
SELECTION MODE
Either the 9 kHz step or 10 kHz step can be selected for the AM
channel step.
Procedure:
1. Set the FUNCTION to AM. Turn off the main power.
2. While depressing the TUNING + button, press the power
?/1 button to turn on the main power.
3. Either the message "9 k STEP" or "10 kSTEP" appears. Select
the desired step.
FLUORESCENT INDICATOR TUBE TEST MODE
All fluorescent segments are tested. When this test is activated, all
segments turn on at the same time, then each segment turns on one
after another.
Procedure:
1. While depressing the PRESET TUNING – and the AM
buttons simultaneously, press the power ?/1 button to turn
on the main power.
2. All segments turn on.
LFE SP A D D DIGITALEX D D PRO LOGIC II x DTS-ES NEO:6 MPEG-2 AAC RDS
SW
SP B SLEEP OPT COAX MULTI CH IN 96/24
L C R
SL S SR
SBL SB SBR
3. Press either of the VIDEO1 or VIDEO2 or DVD or
SA-CD/CD or FM or AM button.
LFE SP A D D DIGITALEX D D PRO LOGIC II x DTS-ES NEO:6 MPEG-2 AAC RDS
SW
SP B SLEEP OPT COAX MULTI CH IN 96/24
L R
S
SB
4. Press either of the VIDEO1 or VIDEO2 or DVD or
SA-CD/CD or FM or AM button once again.
SP A D D DIGITALEX D D PRO LOGIC II x DTS-ES NEO:6 MPEG-2 AAC RDS
SP B SLEEP OPT COAX MULTI CH IN 96/24
C
SL SR
SBL SBR
5. Press either of the VIDEO1 or VIDEO2 or DVD or
SA-CD/CD or FM or AM button once again. All segments
turn off.
10
SECTION 2

TEST MODE

PRESET TUNING – and the
MEMORY
D.RANGE EQ STEREO MONO
DIRECT
dB
kHz
mft.
MHz
MEMORY
D.RANGE EQ STEREO MONO
DIRECT
dB
kHz
mft.
MHz
MEMORY
D.RANGE EQ STEREO MONO
DIRECT
kHz
mft.
MHz
SOUND FIELD CLEAR MODE
The preset sound field is cleared when this mode is activated. Use
this mode before returning the product to clients upon completion
of repair.
Procedure:
1. While depressing the 2CH button, press the power ?/1
button to turn on the main power.
2. The message "SF. CLR." appears and initialization is
performed.
SOFTWARE VERSION DISPLAY MODE
The software version is displayed.
Procedure:
1. While depressing the PRESET TUNING – and the < buttons
simultaneously, press the power ?/1 button to turn on the
main power.
2. The model name, destination and the software version are
displayed.
KEY CHECK MODE
Button check
Procedure:
1. While depressing the < and the A.F.D. buttons simulta-
neously, press the power ?/1 button to turn on the main
power.
"REST 25" appears.
2. Every pressing of any button other than ?/1 counts down
the buttons. The buttons which are already counted once are
not counted again.
3. When all buttons are pressed "REST 00" appears.
SHIPMENT MODE
All preset contents are reset to the default setting.
Procedure:
1. While depressing the AM and the A.F.D. buttons simulta-
neously, press the power ?/1 button to turn on the main
power.
2. "CLEARING" t "CLEARED" appears and switch off the
set.
PROTECTOR
Procedure:
1. While depressing the PRESET TUNING – and the 2CH
buttons simultaneously, press the power ?/1 button to turn
on the main power.
2. "PROT. EVER" appears and switch off the set.
DECODE AUTO ALL
Procedure:
1. While depressing the PRESET TUNING – and the U but-
tons simultaneously, press the power ?/1 button to turn on
the main power.
2. "DEC. TEST" appears and switch off the set.