Sony STR-K790 Service Manual - Page 10

Str-k790, Test Mode - speakers

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STR-K790 SECTION 2 TEST MODE 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. SOFTWARE VERSION DISPLAY MODE The software version is displayed. Procedure: 1. While depressing the DIMMER and the AUTO CAL 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 MUSIC and the AUTO CAL buttons simultaneously, press the power ?/1 button to turn on the main power. "REST 08" 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. 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 SLEEP and the AUTO CAL buttons simultaneously, press the power ?/1 button to turn on the main power. 2. All segments turn on. SW LFE SP A SP B LCR SL S SR SBL SB SBR ;D EX ;PL II x ;PL OPT DTS-ES HDMI COAX 96 / 24 CAT NEO:6 SAT MEMORY D.RANGE dB k Hz mft. MHz RDS ST MONO 3. Turn the INPUT SELECTOR dial. LFE SP B x COAX NEO:6 RDS D.RANGE MONO k m MHz 4. Turn the INPUT SELECTOR dial once again. SW ;D C SL SR SBL SB SBR ;PL DTS CAT MEMORY ST dB Hz ft. 5. Turn the INPUT SELECTOR dial once again. All segments turn off. 6. Every turning of the INPUT SELECTOR dial turns on each segment one after another in the same order. SWAP ALL MODE The signal will be swapped to all channels so that all speakers will have sound output. Procedure: 1. While depressing the DIMMER and the DISPLAY 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 SLEEP and the DISPLAY buttons simultaneously, press the power ?/1 button to turn on the main power. 2. "CLEARED" appears and switch off the set. PROTECTOR AUTO OFF Procedure: 1. While depressing the MOVIE and the DISPLAY buttons simultaneously, press the power ?/1 button to turn on the main power. 2. " PROT. EVER" appears and switch off the set. 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 MOVIE 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. VACS CONTROL TEST MODE The VACS feature of the amplifier is turned off purposely. Procedure: 1. While depressing the MOVIE and the AUTO CAL buttons simultaneously, press the power ?/1 button to turn on the main power. 2. "VACS OFF" appears. (8 second) 10

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10
STR-K790
SECTION 2
TEST MODE
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.
SOFTWARE VERSION DISPLAY MODE
The software version is displayed.
Procedure:
1.
While depressing the
DIMMER
and the
AUTO CAL
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
MUSIC
and the
AUTO CAL
buttons
simultaneously, press the power
?/1
button to turn on the
main power.
“REST 08” 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.
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
SLEEP
and the
AUTO CAL
buttons
simultaneously, press the power
?/1
button to turn on the
main power.
2.
All segments turn on.
3.
Turn the
INPUT SELECTOR
dial.
4.
Turn the
INPUT SELECTOR
dial once again.
5.
Turn the
INPUT SELECTOR
dial once again. All segments
turn off.
6.
Every turning of the
INPUT SELECTOR
dial turns on each
segment one after another in the same order.
SWAP ALL MODE
The signal will be swapped to all channels so that all speakers will
have sound output.
Procedure:
1.
While depressing the
DIMMER
and the
DISPLAY
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
SLEEP
and the
DISPLAY
buttons
simultaneously, press the power
?/1
button to turn on the
main power.
2.
“CLEARED” appears and switch off the set.
PROTECTOR AUTO OFF
Procedure:
1.
While depressing the
MOVIE
and the
DISPLAY
buttons
simultaneously, press the power
?/1
button to turn on the
main power.
2.
“ PROT. EVER” appears and switch off the set.
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
MOVIE
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.
VACS CONTROL TEST MODE
The VACS feature of the amplifier is turned off purposely.
Procedure:
1.
While depressing the
MOVIE
and the
AUTO CAL
buttons
simultaneously, press the power
?/1
button to turn on the
main power.
2.
“VACS OFF” appears. (8 second)
MEMORY
L
C
R
SL
S
SR
SB
SBR
SBL
SW
LFE
SP A
SP B
CAT
NEO:6
SAT
D.RANGE
RDS ST
MONO
DTS-ES
96 / 24
HDMI
COAX
D EX
;
OPT
;
PL II x
;
PL
dB
k Hz
mft.
MHz
LFE
SP B
NEO:6
D.RANGE
MONO
COAX
k
m
MHz
RDS
x
MEMORY
C
SL
SR
SB
SBR
SBL
SW
CAT
DTS
D
;
;
PL
dB
Hz
ft.
ST