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!
Question posted by russellp on February 4th, 2014
How To Tune Sounds For Bass And Tremmel
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Related Sony STR-K790 Manual Pages
Service Manual - Page 1
... the sound field settings and the source, there may be erased when you change the AM tuning scale ...tuning scale.
SERVICE MANUAL
Ver. 1.1 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.
FM STEREO/FM-AM RECEIVER
9-887-542-02
2007C16-1 © 2007.03
Sony Corporation
Home Audio...
Service Manual - Page 2
... three methods.
1. Ordinary soldering irons can be damaged by heat. A. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS ... boards may peel away if the heated tip is applied for AC leakage.
NE REMPLACER CES COM- STR-K790
Power consumption
Area code
Power consumption
US
210 W
Canadian
290 VA
AEP, UK
220 W
Power consumption...
Service Manual - Page 3
STR-K790
About area codes
The area code of the receiver you purchased is shown on the lower right portion of area code AA only". RL
RL ...
Service Manual - Page 4
...commander. mode.
Press to a headphone.
-
Connects to select sound fields (MOVIE, MUSIC). Press to activate the Sleep Timer ...adjust the brightness of all speakers at the same time. STR-K790
Receiver
Front panel
1 234
?/1
VIDEO 1 IN/ PORTABLE AUDIO IN/
AUTO CAL MIC
DIMMER
SLEEP
2CH
A.F.D.
q;
9
...component or a list of selectable items appears here. Press to select A.F.D.
Service Manual - Page 5
... the SUB WOOFER jack. STR-K790
About the indicators on presetting radio stations. PLII
E OPT
F DTS G MEMORY
Function
Lights up when using the receiver to show how the receiver downmixes the source sound. Name
H Tuner Indicators
I Preset station indicators
J D.RANGE
K COAX
L Playback channel indicators
L R C SL SR S
Function
Lights up when audio signal is selected.
Service Manual - Page 6
... to a DVD player, etc.
The
COAXIAL jack
provides a better
COAXIAL IN quality of loud
jack
sound.
The image and the sound are output to a CD player, etc.. B ANTENNA section
AUDIO IN White (L) jacks Red (R)
Connects to a TV or a projector. STR-K790
Rear panel US, Canadian models
12
3
4
DIGITAL OPTICAL
VIDEO 2/ BD IN COAXIAL DVD IN...
Service Manual - Page 7
...old ones. • Do not mix alkaline batteries and other components (SYSTEM STANDBY). STR-K790
Inserting batteries into the remote
Insert two R6 (size-AA) batteries in tuner
7
RM-AAU013
wd ws
wa w; m
TUNING +
H
M
TV
X
x
1 2
3
4 5...remote RM-AAU013 to operate the receiver and to control the Sony audio/video components that the remote is assigned to use . Remote commander
You can ...
Service Manual - Page 8
STR-K790
Name
Function
D 2CH
Press to perform menu operations.
Then, use V, v, B, b and to select 2CH STEREO mode. G D.TUNING
Press to store a station.
MEMORY Press to enter direct tuning...the same time to the TV. mode.
audio settings during recording), or multiple items on ...J TOOLS
Press to display options applicable to select sound fields (MOVIE, MUSIC). and TV (O) at ...
Service Manual - Page 9
STR-K790
Name
Q RETURN/ EXIT O
R V/v/B/b
S ... Numeric buttons (number 5*)
V AUTO CAL W TV INPUT
SLEEP
Function
Press to preset/tune to preset stations or to select track numbers of the CD player, Blu-ray disc ...to clear a mistake when you press the incorrect numeric buttons. Therefore, depending on the component, the above operation may not be possible or may not work depending on the model....
Service Manual - Page 10
...Hz ft.
5. Turn the INPUT SELECTOR dial once again. SWAP ALL MODE The signal will have sound output. "SWP. PROTECTOR AUTO OFF Procedure:
1. " PROT. Select
the desired step.
Procedure:
... off the set . "VACS OFF" appears. (8 second)
10 STR-K790
SECTION 2 TEST MODE
SOUND FIELD CLEAR MODE The preset sound field is cleared when this mode is turned off purposely. While depressing...
Service Manual - Page 11
... DCAC Factory Test mode have two stages:
1. DCAC DSP Data Line Checking 2. Turn MASTER VOLUME jog, there will be test tone sound output from front left speaker of test tone)
STR-K790
11 "AD[]-[]xxx" xxx = 0 to start , below display will show :
"ERR[]SD0x"
x = 1 → D1501 or R1530 x = 2 → D1502 problem x = 3 → D1503...
Service Manual - Page 13
...
3.5 Vp-p
41.6 ns 1 V/DIV, 20 ns/DIV
3 IC1301 ws (XIN)
4.2 Vp-p
STR-K790
81.4 ns 1 V/DIV, 40 ns/DIV
4.2 Vp-p
13
13 Line. • Voltages and ...component side.
• a : Through hole.
• f : internal component.
•
: Pattern from the pattern face are omitted.
• Circuit Boards Location STANDBY board
POWER board DCAC board
HEADPHONE board DISPLAY board
STR-K790...
Service Manual - Page 15
...IMPEDANCE USE 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
1
IC822...AC DET
D914
D915
T900(AEP,UK) T902(US,CND)
Q901
RELAY DRIVE
RY901
STR-K790
15
15 BLOCK DIAGRAM -
Service Manual - Page 25
...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
C452 C402
R454
TP1
DCAC
BOARD
B CN2001 (7pin-9pin)... 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
D448 D449 D501 D502 D529 D549 D551 D552 D553 D601 D602 D603 D651 D652 D701 D702
F-5 F-5 G-8 G-6...
Service Manual - Page 27
...
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 R403 1k
R453 1k R404 1k
R454 1k
CNP501 15P
STR-K790
F
DIGITAL BOARD
(3/5) CNS501 (Page 20)
CNP502...
Service Manual - Page 33
...
33 PRINTED WIRING BOARDS - 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 IN/ AUTO CAL MIC
JW2013
D2013 R2000
JW2004 Q2002
Q2001...
Service Manual - Page 39
... - Not used (Open) - Analog power supply (+3.3V) I Vacs control input
STR-K790 39 • IC Pin Function Description DIGITAL BOARD IC1101 MB90F045PF-G-9033-SPE1 (SYSTEM CONTROLLER... VSS TUNER SD MODEL VAX CTRL
I/O
Description
I Audio data signal input from DIR
I GP9 signal input ...signal output
O IC reset signal output to DSP
I Tuning encoder input (not used)
- Ground terminal
O ...
Service Manual - Page 42
...3CR)
Remark
Ref. Replace only with RV102
3
#1
#1
7
8
5
7
chassis section
6
cb
a 9
Ref.
STR-K790
SECTION 5 EXPLODED VIEWS
NOTE: • -XX and -X mean standardized parts, so they
may have some difference from ...are not stocked since they are critical for routine service. FRONT PANEL SECTION
The components identified by mark 0 or dotted line with mark 0 are seldom required for ...
Service Manual - Page 44
...
J2000 1-820-056-11 SMALL TYPE JACK (VIDEO 1 IN/PORTABLE AUDIO IN/AUTO CAL MIC)
< TRANSISTOR >
R2018 1-249-418-11 ...METAL OXIDE: Metal oxide-film resistor. Part No.
The components identified by reference number, please include the board name.... mark 0 are seldom required for safety.
Description
Remark Ref. STR-K790
DCAC DIGITAL
SECTION 6 ELECTRICAL PARTS LIST
NOTE: • Due...
Service Manual - Page 53
...
560
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 CARBON ...CARBON 1-247-895-00 CARBON 1-249-429-11 CARBON
33K
5%
220K 5%
470K 5%
10K
5%
Remark Ref.
STR-K790
MAIN POWER
Ref.
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