Sony STR-K790 Support Question
Sony STR-K790 Support Question
Find answers below for this question about Sony STR-K790 - Lifier.Need a Sony STR-K790 manual? We have 1 online manual for this item!
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Related Sony STR-K790 Manual Pages
Service Manual - Page 1
...2007.03
STR-K790
US Model Canadian Model
AEP Model UK Model
• STR-K790 is the tuner and the amplifier section in any AM station, turn off the receiver. SPECIFICATIONS
AUDIO POWER ... no sound output. Inputs
Analog
Sensitivity: 800 mV/
50 kohms
Digital (Coaxial) Impedance: 75 ohms
Tone
Gain levels
±6 dB, 1 dB step
Reproduction frequency range:
28 - 20,000 Hz
FM ...
Service Manual - Page 2
...has to be set to the solder joint for a slightly longer time. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS...means of three methods.
1. COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE WITH MARK 0 ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS LIST ARE CRITICAL TO SAFE OPERATION.
STR-K790
Power consumption
Area code
Power ...
Service Manual - Page 3
...HEADPHONE Board 34
5. Chassis Section 43
6. Model US model Canadian model AEP, UK models
Parts No. ELECTRICAL ADJUSTMENT 12
4. DIGITAL Board (Side A) - ...... 16 4-4. Schematic Diagram - MAIN Board (1/4 27 4-15. ... Diagram - HDMI SW Board,
HDMI BRIDGE Board (AEP, UK only 23 4-11. STR-K790
About area codes
The area code of the receiver you purchased is shown on the lower...
Service Manual - Page 4
... the duration which the receiver turns off . To connect a portable audio such as MP3 player, etc..
4 The current status of the selected component or a list of selectable items appears here. Receives signals from remote commander.
Press to a headphone.
-
STR-K790
Receiver
Front panel
1 234
?/1
VIDEO 1 IN/ PORTABLE AUDIO IN/
AUTO CAL MIC
DIMMER
SLEEP
2CH
A.F.D.
Service Manual - Page 5
...the Pro Logic II Movie/Music decoder is decoding Dolby Digital signals.
STR-K790
About the indicators on the display if no digital signal is actually... when DVD input is decoding DTS signals. Lights up when audio signal is activated. PLII
E OPT
F DTS G MEMORY
Function...Right Surround (monaural or the surround components obtained by Pro Logic processing) Example: Recording format (Front/ Surround): ...
Service Manual - Page 6
... jack
player, etc. FM ANTENNA jack
Connects to the FM wire antenna supplied with this receiver. STR-K790
Rear panel US, Canadian models
12
3
4
DIGITAL OPTICAL
VIDEO 2/ BD IN COAXIAL DVD IN
ANTENNA AM
L
R AUDIO IN AUDIO IN AUDIO IN SA-CD/CD TV SAT
RL
SUB
RL
WOOFER SURROUND
SPEAKERS
RL
RL CENTER FRONT...
Service Manual - Page 7
...
2CH A.F.D.
AV ?/1 (on/standby)
Press to turn off the Sony audio/video components that the remote is assigned to turn the receiver on . To turn ...audio/video components that the remote is assigned to their factory settings. Tip
Under normal conditions, the batteries should last for an extended period of
batteries. • Do not expose the remote sensor to use . STR-K790...
Service Manual - Page 8
... muting
function. L TV VOL +*/-
Press TV CH +/-
STR-K790
Name
Function
D 2CH
Press to scan a station.
H DVD MENU
Press...to select 2CH STEREO mode. A.F.D.
G D.TUNING
Press to adjust the volume
+*/-
audio settings during recording), or multiple items on a list menu ...the same time to activate the buttons with components in the forward/backward direction of the DVD ...
Service Manual - Page 9
...Press to clear a mistake when you press the incorrect numeric buttons. Therefore, depending on the component, the above explanation is displayed on the TV screen. Press DISPLAY and TV (O) at the... exit the TV's menu while the menu is intended to serve as references when operating the receiver. STR-K790
Name
Q RETURN/ EXIT O
R V/v/B/b
S DISPLAY
T -/->10/x CLEAR
Function
Press to return to...
Service Manual - Page 10
.... While depressing the MOVIE and the AUTO CAL buttons simultaneously, press the power ?/1 button to turn on the main power. "VACS OFF" appears. (8 second)
10 STR-K790
SECTION 2 TEST MODE
SOUND FIELD CLEAR MODE The preset sound field is cleared when this test is activated, all segments turn on at the same...
Service Manual - Page 11
... will show :
"DCAC[][][]x" x = 1, 2, 3 If there is error happen, below display will change accordingly. Turn MASTER VOLUME jog, there will be test tone sound output from front left speaker of test tone)
STR-K790
11
DCAC FACTORY TEST MODE DCAC Factory Test mode have two stages:
1. DCAC DSP Data Line Checking 2. DCAC DSP Data Line...
Service Manual - Page 13
...; 5 : fusible resistor. • C : panel designation. Note:
• X : parts extracted from the component side.
• a : Through hole.
• f : internal component.
•
: Pattern from the parts face are omitted.
• Circuit Boards Location STANDBY board
POWER board DCAC board
HEADPHONE board DISPLAY board
STR-K790
HDMI SW board (AEP,UK) HDMI BRIDGE board (AEP,UK) DIGITAL...
Service Manual - Page 15
... 6-16Ω
TM602(2/2)
CENTER
TM604(2/2)
SUB WOOFER
IC850
2
PROTECT DET
7
POWER AMP -B
+B
-B
FL101 -20V
TUNER +10V RELAY +B AUDIO +7V
AUDIO +5V
AUDIO -7V
Q851,852 -B
SWITCH
D811
Q801 -20V REG
IC1902
3
+10V REG
1
IC821
1
+7V REG
3
IC1001
3
+5V REG
...D915
T900(AEP,UK) T902(US,CND)
Q901
RELAY DRIVE
RY901
STR-K790
15
15 BLOCK DIAGRAM - DISPLAY/POWER SECTION -
4-2.
Service Manual - Page 25
STR-K790
Ver. 1.1
1 A
B
C
DCAC
E BOARD
CN2001 (4pin-6pin) (Page 33)
D DIGITAL
F BOARD
CNS501 (Page 17)
E
DIGITAL
G F BOARD CNS502 (Page 17)
G
H
2
3
4
5
6
7
8
9
10
11
12
13
14
15
SA-CD/CD AUDIO IN
J400 TV AUDIO IN
SAT AUDIO IN
MAIN BOARD
AEP,UK
JW853
CC54... Q801 Q851 Q852 Q881 Q882 Q883
Location
G-4 G-3 C-6 G-5 H-6 H-5 H-6 G-6 G-5 F-14 F-11 E-9 E-12 F-12 F-12
STR-K790
25
25
Service Manual - Page 27
4-14. SCHEMATIC DIAGRAM -
STR-K790
DCAC
B BOARD
CN2001 (7pin to 9pin)
(Page 34)
J400
SAT AUDIO IN
CNP733 3P
J400 6P
TV AUDIO IN SA-CD/CD AUDIO IN
CC01 100P
R401 1k
CC51 100P
CC02 100P CC52 100P
CC03 100P CC53 100P
CC04 100P CC54 100P
R451 1k R402 1k
R452 1k ...
Service Manual - Page 33
...
CNP790
1
11 1-872-423- (11)
J790 PHONES
STR-K790
33
33 STR-K790
1
2
3
A POWER BOARD
B
C
S152
D
JW123... JW122 JW121
E
F
G
JW124 JW126 JW125
4
5
6
7
8
9
CNP152
1
3
JW157
S114 DIMMER
R135 S115
R136
S116
SLEEP
2CH
K
DISPLAY BOARD CN101 (Page 31)
10
11
12
13
14
15
DCAC BOARD
J2000 VIDEO 1 IN/ PORTABLE AUDIO...
Service Manual - Page 39
... input I Function key push signal input I Function key push signal input I Vacs control input
STR-K790 39 Ground terminal
O Latch signal output to DAC
O Clock signal output to DAC
O IC ... ENC_B
NC NC AVCC AVRH AVSS ADCC A/D1 A/D2 VERSION VSS TUNER SD MODEL VAX CTRL
I/O
Description
I Audio data signal input from DIR
I GP9 signal input from DSP
O BST signal output to DSP
O HCS signal ...
Service Manual - Page 42
... for safety.
Some delay should be anticipated when ordering these items.
• Abbreviation CND : Canadian model
5-1. FRONT PANEL SECTION
The components identified by mark 0 or dotted line with part number specified. STR-K790
SECTION 5 EXPLODED VIEWS
NOTE: • -XX and -X mean standardized parts, so they are critical for routine service.
No.
1 2 3 4 4
Part No...
Service Manual - Page 44
... delay should be different from the parts specified in the diagrams or the components used on the set. • -XX and -X mean standardized parts,...>
J2000 1-820-056-11 SMALL TYPE JACK (VIDEO 1 IN/PORTABLE AUDIO IN/AUTO CAL MIC)
< TRANSISTOR >
R2018 1-249-418-11 CARBON
..., u: µ, for example:
uA. . : µA. .
STR-K790
DCAC DIGITAL
SECTION 6 ELECTRICAL PARTS LIST
NOTE: • Due to...
Service Manual - Page 53
...5%
0 R758 0 R759 0 R760
R761 0 R762
1-249-405-11 CARBON
100
5%
1-249-405-11 CARBON
100
5%
1-234-182-11 ENCAPSULATED COMPONENT
1-247-847-91 CARBON
4.7K
5%
1-240-855-81 CARBON
6.2K
5%
R763 R764 R765 R766 R770
1-249-419-11 CARBON 1-249-431-11 ...1/4W 1/4W
S119 1-771-410-21 SWITCH, TACTILE (MUSIC) S152 1-771-410-21 SWITCH, TACTILE (?/1
53 STR-K790
MAIN POWER
Ref.
Part No. No.
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