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 curtisswilson73 on October 24th, 2010
I Have No Remote And There Is No Control Buttons To Change The Radio Station Or
i have no remote and there is no way to change the radio station or control the bass treble ect. on the control panel
Current Answers
Related Sony STR-K790 Manual Pages
Service Manual - Page 1
... both channels driven, from 120 - 20,000 Hz; SPECIFICATIONS
AUDIO POWER SPECIFICATIONS
POWER OUTPUT AND TOTAL HARMONIC DISTORTION: (Models of ...Loop antenna
Intermediate frequency 450 kHz
4)You can change the tuning scale. While holding down DIMMER, ...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...
Service Manual - Page 2
...leakage. 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... multimeters that is suitable for a slightly longer time. Follow the manufacturers' instructions to change without notice. The Data Precision 245 digital multimeter is suitable. Measuring the voltage drop across...
Service Manual - Page 4
... receiver turns off . Press to activate the Auto Calibration function. Press to select 2CH STEREO mode. mode. q;
9
Name
H MASTER VOLUME
I INPUT SELECTOR
J Remote sensor
K MOVIE, MUSIC
L A.F.D.
Connects to playback. Turn to select the input source 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
... Logic processing to 2 channel signals in order to tune in radio stations, etc. Lights up when the receiver is selected. The letters (L, C, R, etc.) indicate the channels being reproduced.
Front Left Front Right Center (monaural) Surround Left Surround Right Surround (monaural or the surround components obtained by Pro Logic processing) Example: Recording format (Front...
Service Manual - Page 6
...ANTENNA jack
Connects to a CD
White (L) jacks
player, etc. AEP, UK models
12
C AUDIO INPUT section
AUDIO IN Connects to the FM wire antenna supplied with this receiver.
Connects to a TV or ...IN quality of loud
jack
sound.
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...
Service Manual - Page 7
... the AV ?/1 switch changes automatically each time you do not intend to operate.
To turn the receiver on or off . STR-K790
Inserting batteries into the remote
Insert two R6 (size-AA) batteries in tuner
7
MOVIE MUSIC
AMP MENU
123
FM MODE
456
7
>10/
- Note The function of the input buttons, the receiver turns on...
Service Manual - Page 8
...buttons with components in the forward/backward direction of the CD player or DVD player (multidisc changer only). Press to display the TV's menu.
TUNING +/- MOVIE, MUSIC
Press to adjust
the TV volume level. audio...and TV (O) at the
same time.
X
Press to scan a station. Press to the TV. STR-K790
Name
Function
D 2CH
Press to select A.F.D.
Press to select 2CH ...
Service Manual - Page 9
...buttons.
Press -/-- Name
U Numeric buttons (number 5*)
V AUTO CAL W TV INPUT
SLEEP
Function
Press to preset/tune to preset stations...while the menu is displayed on the component, the above explanation is intended to...differently than described.
• The VIDEO 3 button on the TV screen. STR-K790
Name
Q RETURN/ EXIT O
R V/v/B/b
S ...displayed on the remote is not available for DVD MENU ...
Service Manual - Page 10
...change while displayed.)
SHIPMENT MODE All preset contents are pressed "REST 00" appears. While depressing the SLEEP and the DISPLAY buttons simultaneously, press the power ?/1 button...channels so that all buttons are reset to the default setting. Procedure:
1. VACS CONTROL TEST MODE The ... mft. Turn the INPUT SELECTOR dial once again. STR-K790
SECTION 2 TEST MODE
SOUND FIELD CLEAR MODE The ...
Service Manual - Page 11
When power off : Press the three buttons MUSIC + DISPLAY + ?/1 . "DCAC[]FTM" appears.
Afterward, press the DIMMER to 255 (... test mode will change accordingly. "AD[]-[]xxx" xxx = 0 to start , below display will show:
"DCAC[][][]x" x = 1, 2, 3 If there is error happen, below display will be test tone sound output from front left speaker of test tone)
STR-K790
11 DCAC DSP Data...
Service Manual - Page 12
...whose output impedance is received in good condition."
12 Please use video cable for checking. STR-K790
Ver. 1.1
TUNER SECTION [FM Auto Stop Check]
SET
SECTION 3 ELECTRICAL ADJUSTMENT
generator...scan the input FM signal with automatic scanning.
4. Confirm that input Frequency of automatic scanning means "The station signal is 75 ohm.
3.
Set to connect SG and the set. The stop of A, B and...
Service Manual - Page 15
...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 ...CONTROL
68
38
Q881-883 PROTECT SWITCH
D841 VACS CONTROL
61
45
PROTECTOR VAX CTRL
DC-CONTROL ADCC
X1101 24MHz
IC102 REMOTE CONTROL 1 RECEIVER
82 X0 83 X1
54 SIRCS
SYSTEM CONTROL...STR-K790
15
15
DISPLAY/POWER SECTION - 4-2. BLOCK DIAGRAM -
Service Manual - Page 27
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 R403 1k
R453 1k R404 1k
R454 1k
CNP501 15P
STR-K790
F
...
Service Manual - Page 32
...
CL111
CL112
CL113
CL114
CL115
CL116
CL117
CL11 8
CL103
JW120 5.5
IC102
REMOTE CONTROL RECEVER
RPM7240-H4 IC102
1
3.3
3.3
VCC OUT GND
2 R119 10 0
3
C150 0.1
JW101
CNS102 17P 1
DC-CONTROL
2 GND
3 GND
4 +3.3V(STDBY )
5 +5V
6 VOL_JOG_2A
... 21)
CNP102 2P 1 DCAC_IN (CN2001)
2 DC-CONTROL (CN2001)
L
DCAC BOARD CN2001 (Page 34)
No mark : FM
STR-K790
32
32 STR-K790
4-19.
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 36
...33 32 31 30
29
28 27 26 25
SYSTEM CLOCK MANAGER
FUNCTION CONTROL INTERFACE
SYSTEM CLOCK
SERIAL INPUT INTERFACE
4X/8X OVER SAMPLING
DIGITAL FILTER WITH FUNCTION CONTROLLER
ZERO DETECT
DAC
DAC
DAC
ENHANCED
MULTI- DIGITAL Board - SIGMA
MOJULATOR
...6 2B 5 2A
ZERO1/GPO1 ZERO2/GPO2 ZERO3/GPO3 ZERO4/GPO4 ZERO5/GPO5 ZERO6/GPO6
NC NC VOUT6 VOUT5 VOUT4 VOUT3
-
STR-K790
- MAIN Board -
Service Manual - Page 39
... 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 ... ground terminal I ADCC signal input I Function key push signal input I Function key push signal input I Vacs control input
STR-K790 39 Power supply (+3.3V)
O Composite video signal select 1 (not used)
O Composite video signal select 2...
Service Manual - Page 40
STR-K790
Pin No. Pin Name
I/O
Description
46
TUNER CLK
O Tuner clock signal output
47
TUNER DATA
O Tuner..., UK only)
53
RDS_DATA
I RDS data signal input (AEP, UK only)
54
SIRCS
I Data signal input from the remote control sensor
55
HP_DETECT
I Headphone signal input
56
POWER_KEY
I Power switch key detect signal input
57
ADCC_INT
I ADCC interrupt input
58
POWER_RY
O...
Service Manual - Page 44
...Ref. The components identified by reference number, please include the board name. Ref.
Les composants identifiés par une marque 0 sont critiques pour la sécurité. STR-K790
DCAC DIGITAL...759-167-88 IC NJM4565D
< JACK >
J2000 1-820-056-11 SMALL TYPE JACK (VIDEO 1 IN/PORTABLE AUDIO IN/AUTO CAL MIC)
< TRANSISTOR >
R2018 1-249-418-11 CARBON
1.2K
5% 1/4W
R2019 1-249-421...
Service Manual - Page 56
... FM Auto Stop Check
Change of D884 to MAIN board
(SPM-07002) (ECN-ECC03280)
(ENG-07004) of TUNER for US model
Addition of Part No. Ver.
Also, clicking the version at the upper right on the revised page allows you to jump to the revised page. STR-K790
REVISION HISTORY
Clicking the version...
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