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Popular Sony STR-K790 Manual Pages
Service Manual - Page 1
... SPECIFICATIONS
POWER OUTPUT AND TOTAL HARMONIC DISTORTION: (Models of DTS, Inc. General
Power requirements
Area code
Power requirements
US, Canadian
120 V AC, 60 Hz
AEP, UK
230 V AC, 50/60 Hz
-
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...
Service Manual - Page 2
... 0.5 mA (500 microamperes.).
STR-K790
Power consumption
Area code
Power consumption
US
210 W
Canadian
290 VA
AEP, UK
220 W
Power consumption (during standby mode)
0.3 W
Dimensions (w/h/d) (Approx.) 429 × 145 × 308 mm (16 7/8 × 5 6/8 × 12 1/8 inches) including projecting parts and controls
Mass (Approx.) 7.4 kg (16 lb 9 oz)
Design and specifications are subject to...
Service Manual - Page 3
... Panel Section 42 5-2. ELECTRICAL PARTS LIST 44
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 CENTER FRONT SPEAKERS
Area code
Any differences in operation, according to the area code, are clearly indicated in the text, for example, "Models of the rear panel...
Service Manual - Page 4
... on the display.
Press to activate the Auto Calibration function. mode. 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
Name
H MASTER VOLUME
I INPUT SELECTOR
J Remote sensor
K MOVIE, MUSIC
L A.F.D.
To connect a portable audio such as MP3 player, etc..
4 Press to select sound fields (MOVIE, MUSIC).
Connects...
Service Manual - Page 5
... reproduced. STR-K790
About the indicators on presetting radio stations. PLII ; D D ; Lights up when the receiver is activated.
Note Dolby Pro Logic and Dolby Pro Logic II decoding do not function for models of area code AEP, UK only. However, "UNLOCK" appears on the display if no digital signal is input through the OPTICAL jack. Lights...
Service Manual - Page 6
....
AM
Connects to the
ANTENNA AM loop antenna
terminals
supplied with this
receiver.
6 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 SPEAKERS
A DIGITAL INPUT section...
Service Manual - Page 7
... input buttons (C). When the remote no longer operates the receiver, replace all components, press ?/1 and AV ?/1 (A) at
(on/standby) the same time to select the component you press any of
batteries. • Do not expose the remote sensor to use the supplied remote RM-AAU013 to operate the receiver and to control the Sony audio/video components that the...
Service Manual - Page 8
STR-K790...skips tracks of the DVD player on the TV screen.
level of the receiver. N ./>
Press to perform menu operations.
TUNING +/-
mode. G D.TUNING
Press to store a station. H ... orange printing.
audio settings during recording), or multiple items on the TV screen.
Press to perform menu operations.
Press TV VOL +/-
disc protection), recorder (e.g. Press ...
Service Manual - Page 9
... on the remote is not available for DVD MENU or MENU.
Press to enter the selection for receiver operation.
9 Therefore...STR-K790
Name
Q RETURN/ EXIT O
R V/v/B/b
S DISPLAY
T -/->10/x CLEAR
Function
Press to return to the previous menu or exit the menu while the menu or on-screen guide of the VCR, DVD player, or satellite tuner is displayed on the model.
• The above operation...
Service Manual - Page 10
... is performed.
Set the FUNCTION 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 returning the product to clients upon completion of any button other than ?/1 counts down the buttons. CLR." appears and initialization is displayed.
Procedure:
1. The model...
Service Manual - Page 11
... test tone)
STR-K790
11 DCAC board Checking
Start
DSP Data Line Pass Check
Auto Cal Mic Pass Check
END
Factory Test System Setup
Receiver
DCAC MIC
SPK... If there is error happen, below display will change accordingly. "AD[]-[]xxx" xxx = 0 to start , below display will show :
"ERR[]SD0x"
x = 1 → D1501 or R1530 x = 2 → D1502 problem x = 3 → D1503 problem
2. "DCAC[]FTM...
Service Manual - Page 12
... SG and the set. You cannot use SG whose output impedance is received in good condition."
12 Confirm that input Frequency of automatic scanning means "The ...to FM tuner function and scan the input FM signal with automatic scanning.
4.
STR-K790
Ver. 1.1
TUNER SECTION [FM Auto Stop Check]
SET
SECTION 3 ELECTRICAL ADJUSTMENT
generator OUT (75 Ω)
Procedure: 1. Turn the power on. 2.
Service Manual - Page 13
...- Replace only with mark 0 are indicated. Line. • Voltages and waveforms 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 - Caution: Pattern face side: (Side B) Parts face side: (Side A)
Parts...
Service Manual - Page 15
...Q507 AF POWER PROTECT
Q607 AF POWER PROTECT
SR-CH
Q707 AF POWER PROTECT
Q608 RELAY DRIVE
RY551
R-CH
TM602(1/2) L
R
FRONT
RY601
R-CH
TM604(1/2) L R
SURROUND
Q708 RELAY
...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...STR-K790
15
15 BLOCK DIAGRAM - DISPLAY/POWER SECTION -
Service Manual - Page 24
...SW BOARD, HDMI BRIDGE BOARD (AEP, UK only) - • See page 37 for IC Block Diagrams.
AEP,UK VIDEO 2/BD IN
STR-K790
HDMI SW BOARD
R5047 0
R5068 100k
TP5016
R5016 0
R5017 0
CN5001 19P
CN5002 19P R5048 0
R5069 100k
R5018 1k
R5019 0 R5020 0...(HDMI) PRE(HDMI) CTL(HDMI) COMP_S2 COMP_S1 V_SW1 V_SW2 V_SW3 V_SW4
A
DIGITAL BOARD (1/5) CNS509 (Page 18)
24
24 STR-K790
4-11. SCHEMATIC DIAGRAM -
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