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 jimodesign on December 11th, 2019
Changing Stations
can stations be changed directly on the unit without a remote?
Current Answers
Related Sony STR-K790 Manual Pages
Service Manual - Page 1
...Intermediate frequency 450 kHz
4)You can change the tuning scale.
General
Power requirements...AUDIO POWER SPECIFICATIONS
POWER OUTPUT AND TOTAL HARMONIC DISTORTION: (Models of DTS, Inc. All preset stations will be no more than 1% total harmonic distortion from 120 - 20,000 Hz; To reset the scale to 10 kHz (or 9 kHz), repeat the procedure. SERVICE MANUAL
Ver. 1.1 2007.03
STR-K790...
Service Manual - Page 2
...Measuring the voltage drop across a resistor by any exposed metal part having a return to change without notice. A)
To Exposed Metal Parts on Set
Notes on IC pins, etc.
...REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY. A commercial leakage tester, such as described below. STR-K790
Power consumption...
Service Manual - Page 4
q;
9
Name
H MASTER VOLUME
I INPUT SELECTOR
J Remote sensor
K MOVIE, MUSIC
L A.F.D. Turn to select the input source to a headphone.
-
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.
M PHONES jack N VIDEO 1 IN/
PORTABLE AUDIO IN/ AUTO CAL MIC jack
Function
Turn to turn the receiver on the...
Service Manual - Page 5
...Right Center (monaural) Surround Left Surround Right Surround (monaural or the surround components obtained by Pro Logic processing) Example: Recording format (Front/ Surround): ...audio signal is output from the SUB WOOFER jack. Note Dolby Pro Logic and Dolby Pro Logic II decoding do not function for models of area code AEP, UK only. STR-K790
About the indicators on presetting radio stations...
Service Manual - Page 6
... player, etc. HDMI IN/ OUT jacks*
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
...the receiver and to control the Sony audio/video components that the remote is assigned to turn the receiver on . Doing so may cause a malfunction. • If you replace the batteries, the remote buttons may be reset to direct sunlight
or lighting apparatuses. m
TUNING +
H
M
TV
X
x
1 2
3
4 5 6 7 8 9 q;
STR-K790
Inserting batteries into the remote
Insert two R6 (size-AA...
Service Manual - Page 8
... to select 2CH STEREO mode. STR-K790
Name
Function
D 2CH
Press to scan a station.
D.SKIP
Press to perform menu...direct tuning mode.
G D.TUNING
Press to pause playback or
recording of the CD player, DVD player or Blu-ray disc player.
audio...volume
+*/-
Press to activate the buttons with components in the forward/backward direction of the VCR, Bluray disc player or ...
Service Manual - Page 9
...remote is not available for DVD MENU or MENU.
Name
U Numeric buttons (number 5*)
V AUTO CAL W TV INPUT
SLEEP
Function
Press to preset/tune to preset stations...time to select the TV channels. Therefore, depending on the component, the above explanation is intended to serve as references when ... -/-- Use the tactile dots as an example only.
STR-K790
Name
Q RETURN/ EXIT O
R V/v/B/b
S DISPLAY...
Service Manual - Page 10
... power ?/1 button to turn on the main power.
2. Procedure:
1. EVER" appears and switch off .
6. STR-K790
SECTION 2 TEST MODE
SOUND FIELD CLEAR MODE The preset sound field is cleared when this mode is performed. CLR...DISPLAY MODE The software version is displayed. ALL" appears. (No change while displayed.)
SHIPMENT MODE All preset contents are reset to AM.
MHz
RDS ST MONO
3.
Service Manual - Page 11
... mode have two stages:
1. DCAC board Checking Connect front left speaker, and the display will change accordingly. "AD[]-[]xxx" xxx = 0 to start , below display will be test tone sound output from front left speaker of test tone)
STR-K790
11 Turn MASTER VOLUME jog, there will show :
"DCAC[][][]x" x = 1, 2, 3 If there is error happen...
Service Manual - Page 12
STR-K790
Ver. 1.1
TUNER SECTION [FM Auto Stop Check]
SET
SECTION 3 ELECTRICAL ADJUSTMENT
generator OUT (75 Ω)
... in good condition."
12 Confirm that input Frequency of automatic scanning means "The station signal is 75 ohm.
3. Please use video cable for checking.
Input the following signal from Signal Generator to FM antenna input directly.
* Carrier Freq : A = 87.5 MHz, B = 98 MHz, ...
Service Manual - Page 13
...components identified by mark 0 or dotted line with part number specified. der no-signal (detuned) conditions.
F : FM J : ANALOG c : DIGITAL I : VIDEO
For Printed Wiring Boards. DIGITAL Board -
1 IC1905 9 (MCLK1)
72 ns 1 V/DIV, 40 ns/DIV
2 IC1101 id (X1)
3.5 Vp-p
41.6 ns 1 V/DIV, 20 ns/DIV
3 IC1301 ws (XIN)
4.2 Vp-p
STR-K790...HEADPHONE board DISPLAY board
STR-K790
HDMI SW board (AEP...
Service Manual - Page 15
...
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 ... CONTROL
61
45
PROTECTOR VAX CTRL
DC-CONTROL ADCC
X1101 24MHz
IC102 REMOTE CONTROL 1 RECEIVER
82 X0 83 X1
54 SIRCS
SYSTEM CONTROL IC1101...STR-K790
15
15 4-2. DISPLAY/POWER SECTION -
Service Manual - Page 25
... page 13 for Circuit Boards Location.
:Uses unleaded solder. 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
C452 C402...
Service Manual - Page 27
MAIN BOARD (1/4) - • See page 36 for IC Block Diagram.
4-14. 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...
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
...signal input terminal O EEPROM clock signal output terminal I Input selector Encoder (A) signal input I Vacs control input
STR-K790 39 Not used (Open) - • IC Pin Function Description DIGITAL BOARD IC1101 MB90F045PF-G-9033-SPE1 (SYSTEM ... 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...
Service Manual - Page 42
... le numéro spécifié. FRONT PANEL SECTION
The components identified by mark 0 or dotted line with mark 0 are seldom required for safety. Some delay should be anticipated when ordering these items.
• Abbreviation CND : Canadian model
5-1.
STR-K790
SECTION 5 EXPLODED VIEWS
NOTE: • -XX and -X mean standardized parts, so...
Service Manual - Page 44
The components identified by reference number, please include the board name. Part No. uPC. . : µPC. . Ref.
uPB. . : µPB. . Part No. STR-K790
DCAC DIGITAL
SECTION 6 ...IC2000 8-759-167-88 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 1-249-421-11...
Service Manual - Page 53
... 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-...249-429-11 CARBON
33K
5%
220K 5%
470K 5%
10K
5%
Remark Ref. Part No. Part No. STR-K790
MAIN POWER
Ref. No. No.
Description
1/4W
R858 1-215-890-11 METAL OXIDE 470
1/4W
1/...
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