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 smithavionicrefinements on February 15th, 2013
Sony Str K-790, Station Finder Control.
Sony STR K-790 makes static sound, appears to work, but no words radio tuner to recieve radio staions.
Is it simple, or is there a combination of controls needed to tune in stations?
Current Answers
Related Sony STR-K790 Manual Pages
Service Manual - Page 1
... Model UK Model
• STR-K790 is the tuner and the amplifier section in any AM station, turn off the receiver. While holding down DIMMER, press ?/1.
rated 85 watts per channel Surround mode2) (reference) (6 ohms 100 Hz, THD 10%) SUB WOOFER: 135 W
1)Measured under license from Dolby Laboratories. SPECIFICATIONS
AUDIO POWER SPECIFICATIONS
POWER OUTPUT AND...
Service Manual - Page 2
...digital multimeters that is suitable for a slightly longer time. STR-K790
Power consumption
Area code
Power consumption
US
210 W
Canadian
...× 5 6/8 × 12 1/8 inches) including projecting parts and controls
Mass (Approx.) 7.4 kg (16 lb 9 oz)
Design and specifications ...COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY...
Service Manual - Page 3
... Block Diagram - Schematic Diagram - DIGITAL Board (Side A) - ...... 16 4-4. Printed Wiring Boards -
Schematic Diagram - Schematic Diagram - Schematic Diagram - MAIN Board (4/4 30 4-18. EXPLODED VIEWS 5-1. MODEL IDENTIFICATION - 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".
Schematic Diagram...
Service Manual - Page 4
The current status of the selected component or a list of all speakers at the same time. Turn to select the input source to the supplied optimizer microphone for the Auto Calibration function.
- Connects to playback. STR-K790
Receiver
Front panel
1 234
?/1
VIDEO 1 IN/ PORTABLE AUDIO IN/
AUTO CAL MIC
DIMMER
SLEEP
2CH
A.F.D.
Press to adjust...
Service Manual - Page 5
... decoding Dolby Digital signals. Lights up when audio signal is selected. STR-K790
About the indicators on the display if no digital signal is decoding DTS signals.
For details on the display if no digital signal is input through the COAXIAL jack. However, "UNLOCK" appears on presetting radio stations. PLII ; Front Left Front Right Center (monaural...
Service Manual - Page 6
...supplied with this receiver. The
COAXIAL jack
provides a better
COAXIAL IN quality of loud
jack
sound. B ANTENNA section
AUDIO IN White (L) jacks Red (R)
Connects to a DVD
IN jack
player, etc.
Red ...(L) jacks
player, etc. 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...
Service Manual - Page 7
... Sony audio/video components that the remote is assigned to control Sony components as follows. When the remote no longer operates the receiver, replace all components, press ?/1 and AV ?/1 (A) at the same time (SYSTEM STANDBY). Remote commander
You can use a new battery with new ones.
MOVIE MUSIC
AMP MENU
123
FM MODE
456
7
>10/
- REPLAY ADVANCE PRESET +
.<
>
<
TUNING...
Service Manual - Page 8
...satellite tuner.
disc protection), recorder (e.g. K MUTING
Press to select sound fields (MOVIE, MUSIC).
level of all speakers at the same time to activate the buttons with components in...Press to enter direct tuning mode. Then, use V, v, B, b and to scan a station.
Press to perform menu operations.
F FM MODE
Press to store a station.
m/M
Press to enter...
Service Manual - Page 9
...component, the above operation may not be possible or may not work depending on the TV screen.
Name
U Numeric buttons (number 5*)
V AUTO CAL W TV INPUT
SLEEP
Function
Press to preset/tune to preset stations...VCR, satellite tuner, Blu-ray disc player or DVD player. Press the numeric buttons and TV (O) at the same time to select the input signal (TV input or video input). STR-K790
Name
Q ...
Service Manual - Page 10
... off .
6.
"VACS OFF" appears. (8 second)
10 Procedure:
1. PROTECTOR AUTO OFF Procedure:
1. Use this mode is activated. Procedure:
1. While depressing the DIMMER and the DISPLAY buttons simultaneously, press the power ?/1 button to turn off the main power. 2. STR-K790
SECTION 2 TEST MODE
SOUND FIELD CLEAR MODE The preset sound field is cleared when this mode before...
Service Manual - Page 11
...Check
END
Factory Test System Setup
Receiver
DCAC MIC
SPK Front Left
1. "DCAC[]FTM" appears. DCAC DSP Data Line Checking After press the DIMMER , DCAC Factory test mode will... = 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 Line Checking 2. Afterward, press the DIMMER to 255 (depends on...
Service Manual - Page 12
...scanning stops. You cannot use SG whose output impedance is received in good condition."
12
STR-K790
Ver. 1.1
TUNER SECTION [FM Auto Stop Check]
SET
SECTION 3 ELECTRICAL ADJUSTMENT
generator OUT (75 Ω)... (EMF)
Note: Please use 75 ohm "coaxial cable" to FM tuner function and scan the input FM signal with automatic scanning.
4. Confirm that input Frequency of automatic scanning means "...
Service Manual - Page 13
... 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 board
MAIN board
• Waveforms -
Note: The components identified by mark 0 or dotted line with a oscilloscope. • Circled numbers refer to waveforms. • Signal...
Service Manual - Page 15
... 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 ...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 BLOCK DIAGRAM - 4-2.
Service Manual - Page 16
... DIGITAL BOARD (SIDE A) - • See page 13 for Circuit Boards Location.
:Uses unleaded solder.
1
2
3
4
5
6
7
8
A
DIGITAL BOARD (SIDE A)
R1943 C1913
B C D E
STR-K790
R1096
FB1350
R1318 C1315 R1321
R1253
FB1306
IC1301
R1313 R1312
R1311
R1555
C1031
FB1310
C1301
R1557
RB1500
C1302 R1301 C1304 R1304
D1302
JR1005 R1303
R1325
...
Service Manual - Page 17
PRINTED WIRING BOARD - Location D1003 D-3 D1004 D-3 D1107 C-6 D1108 C-6 D1110 C-6 D1111 C-7 D1501 C-3 D1502 C-3 D1503 D-3
IC1001 E-3 IC1031 B-7 IC1351 C-2 IC1901 B-7 IC1902 B-5 IC1904 B-6
STR-K790
DIGITAL BOARD (SIDE B)
STANDBY BOARD
C
CNP801
(Page 26)
AM
TUNER
FM 75 COAXIAL
AEP,UK
HDMI BRIDGE
A BOARD CNS199 (Page 23)
HS1903
HS1901
CL026
IC1031
CL027 C1032
CL029 CL031 TP1000 ...
Service Manual - Page 32
...
13 FL_DI N
14 FL_CLK
15 INPUT_JOG_4A
16 INPUT_JOG_4B
17 DCAC_IN
I
MAIN BOARD
(2/4) CNP908 (Page 28)
H
DIGITAL BOARD
(4/5) CNS513 (Page 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 36
... 44 DATA1 45 DATA2 46 DATA3 47
ZEROA 48
36 35 34 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- STR-K790
- DIGITAL Board -
Service Manual - Page 39
... output
O IC reset signal output to DSP
I Tuning encoder input (not used)
I Tuning encoder input (not used)
- Power supply (+3.3V... signal input I Vacs control input
STR-K790 39 • IC Pin Function Description DIGITAL BOARD IC1101 MB90F045PF-G-9033-SPE1 (SYSTEM CONTROLLER)
Pin No. 1 ... A/D1 A/D2 VERSION VSS TUNER SD MODEL VAX CTRL
I/O
Description
I Audio data signal input from DIR
...
Service Manual - Page 40
... relay control signal output
69
C/REAR/SB_RY
O Center, rear, surround back speaker control signal output
70
SW_RY
O Sub woofer control signal output
71
NC
O Not used (Open)
72
BRIDGABLE_RY
O Bridgeable relay control output (not used)
73
DO/SD/ST
I Frequency data signal input from the tuner
74
SLATCH
O Latch signal output to DIR
40 STR-K790
Pin...
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