Test Mode - Sony STR-K785 Service Manual

STR-K785
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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 "S.F. CLR." appears and initialization is
performed. (3 second)
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. (8 second)
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.
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3. When all buttons are pressed "REST 00" appears.
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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.
SP A DIGITALEX PRO LOGIC II x DTS-ES NEO:6 MPEG-2 AAC RDS
LFE D D D D
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 MULTI CH IN 96/24
www
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.
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SECTION 2

TEST MODE

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
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y
mft.
MHz
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SWAP ALL MODE
Procedure:
1. While depressing the PRESET TUNING – and the A.F.D.
buttons simultaneously, press the power ?/1 button to turn
on the main power.
2. "SWP.ALL" appears. (No change while displayed.)
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. "CLEARED" appears and switch off the set.
PROTECTOR
If an error occurs, the "Protector Display" will flash for a while and
the power is turned OFF.
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 (3 seconds) and the display returns
to the "Protector Display" and the power remains ON.
VACS CONTROL
Procedure:
1. While depressing the < and the DIMMER buttons simulta-
neously, press the power ?/1 button to turn on the main
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power.
2. "VACS OFF" appears. (8 second)
DCAC FACTORY TEST MODE
DCAC Factory Test mode have two stages:
1. DCAC DSP Data Line Checking
2. DCAC board Checking
Start Pass
DSP Data Line
Check
Factory Test System Setup
SPK Front Left
1. When power off :
Press the three buttons < + DISPLAY + ?/1 .
(If it doesn't operate, please press DISPLAY again afetr 2
seconds.) co
Afterward, press the DIMMER to start DCAC factory test
mode.
.
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Pass
Auto Cal Mic
END
Check
Receiver
DCAC MIC
m
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