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 jrcahigas on December 23rd, 2010
My Sony Str-k70 Has No Power.fuse Is Busted
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Related Sony STR-K790 Manual Pages
Service Manual - Page 1
...FM STEREO/FM-AM RECEIVER
9-887-542-02
2007C16-1 © 2007.03
Sony Corporation
Home Audio Division Published by Sony Techno Create Corporation
"Dolby", "Pro Logic" and the double-D symbol are...Hz
2)Reference power output for front, center, surround speakers and sub woofer.
SERVICE MANUAL
Ver. 1.1 2007.03
STR-K790
US Model Canadian Model
AEP Model UK Model
• STR-K790 is the tuner...
Service Manual - Page 2
.... REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY.
Check leakage as...) may not come printed with ordinary solder It is suitable. A. 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 ...
Service Manual - Page 3
...Board - HDMI SW Board,
HDMI BRIDGE Board (AEP, UK only 24 4-12. STR-K790
About area codes
The area code of the receiver you purchased is shown on the ... panel (see the illustration below). ELECTRICAL ADJUSTMENT 12
4. Schematic Diagram - MAIN Board (3/4 29 4-17. POWER Board, DCAC Board,
HEADPHONE Board 33 4-21. Printed Wiring Board - Printed Wiring Board - Printed Wiring ...
Service Manual - Page 7
... the same time to turn the receiver on or off the Sony audio/video components that the remote is assigned to operate. Button
Assigned Sony component
VIDEO 1 VCR (VTR mode 3)
VIDEO 2 VCR (VTR mode... want to select the component you press the input buttons (C). RM-AAU013
wd ws
wa w;
Observe the correct polarity when installing batteries. STR-K790
Inserting batteries into the ...
Service Manual - Page 10
... to turn on the main power.
2. All segments turn on at the same time, then each segment one after another . Turn the INPUT SELECTOR dial.
Every turning of the INPUT SELECTOR dial turns on . Procedure:
1. Turn off the set . STR-K790
SECTION 2 TEST MODE
SOUND FIELD CLEAR MODE The preset sound field is...
Service Manual - Page 11
...display will be test tone sound output from front left speaker of test tone)
STR-K790
11 Turn MASTER VOLUME jog, there will change accordingly. DCAC DSP Data Line Checking... = 1 → D1501 or R1530 x = 2 → D1502 problem x = 3 → D1503 problem
2. When power off : Press the three buttons MUSIC + DISPLAY + ?/1 . DCAC FACTORY TEST MODE DCAC Factory Test mode have two stages:...
Service Manual - Page 12
... to connect SG and the set. Please use video cable for checking. 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)
Procedure: 1. Turn the...
Service Manual - Page 13
...) conditions.
F : FM J : ANALOG c : DIGITAL I : VIDEO
For Printed Wiring Boards. Note: The components identified by mark 0 or dotted line with part number specified.
DIGITAL Board -
1 IC1905 9 (MCLK1)
72 ns... 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) ...
Service Manual - Page 15
...POWER SECTION - BLOCK DIAGRAM - STR-K790
• R-CH is omitted due to same as L-CH. • Signal Path
: FM
L
IC501 POWER AMP
+V OUT2 12
8 IN2 NF2 9
Q501,502 LIMITER
Q503 BOOSTER
-V OUT2 11
IC601 POWER...(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... HDMI_CTRL
89
FUSE DETECT 63
AVRH...
Service Manual - Page 25
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... E
Q554
Q653
Q652 E
Q654
CNP502
16
POWER
N TRANSFORMER T901 (Page 26)
STANDBY
O BOARD CNP906 (Page 26)
POWER
M TRANSFORMER T901 (Page 26)
DISPLAY
I
...
Service Manual - Page 26
...
7
CNP801
1-872-417- CNP906
5
6
MAIN
N BOARD
CNP907 (Page 25)
MAIN
M BOARD
CNP902 (Page 25)
MAIN BOARD
O CNP916 (Page 25)
C
DIGITAL BOARD CNP505
(Page 17)
STR-K790
26
26
7
8
T901 POWER TRANSFORMER
• Semiconductor Location
Ref. STR-K790
4-13.
D901 D910 D911 D912 D913 D914 D915 D920 D921 D922 D923
Location
D-3 E-2 E-2 E-2 E-2 E-2 E-2 B-4 C-4 B-4 B-4
Q901 D-3 Q911 D-3
Service Manual - Page 29
SCHEMATIC DIAGRAM - STR-K790
(Page 27)
TP2
20 MAIN BOARD (1/4) (Page 27)
(Page 30)
POWER AMP
IC701 STK350-530T-E
37 -37
37
1
-1
37
-0.2
-0.2
37 1.1 -1 37 -0.2 -0.2
R700 47k
C701 4.7 50V
R701 1k
C702 R702 ...
R479 2.2k CNP504 5P
L SURROUND
R
SPEAKERS
IMPEDANCE USE 6-16
SUB WOOFER
D
DIGITAL BOARD
(4/5) CNP506 (Page 21)
No mark:FM
STR-K790
29
29 4-16.
MAIN BOARD (3/4) -
Service Manual - Page 30
SCHEMATIC DIAGRAM - STR-K790
Ver. 1.1
4-17. MAIN BOARD (4/4) -
(Page 27)
IC501 STK350-530T-E
37
POWER AMP
37
1
-1
37
-0.2
-0.2
-0.2
-0.2
37
-1
1
37
R500 47k
C501 4.7 50V
R501 1k
C500 2.2 100V
C502 100p
R502 68k
C551 4.7 50V
C552 100p
...
RR11 10
RR12 10
RR13 10
CC11 0.01
CC12 0.01
CC13 0.01
TM602
FRONT
SPEAKERS
IMPEDANCE USE 6-16
CENTER
No mark:FM
STR-K790
30
30
Service Manual - Page 31
PRINTED WIRING BOARD - STR-K790
1
2
3
4
5
6
7
8
A
DISPLAY BOARD
CL125
B
K
CN101
R198
POWER
CL128
BOARD
CL127
CNP102 (Page 33)
JW111 CL121
CL120
FL101 FLUORESCENT INDICATOR TUBE
R199...BOARD CNS513 (Page 17)
JW135 JW134
JW147
JW146
TP100
11 1-872-420- (11)
STR-K790
31
31 DISPLAY BOARD - • See page 13 for Circuit Boards Location.
:Uses unleaded solder. 4-18.
Service Manual - Page 32
SCHEMATIC DIAGRAM - DISPLAY BOARD -
• See page 38 for IC Block Diagrams.
1 A
B
C
D
E
F
G
H
K
POWER
BOARD
CNP152
I
(Page 34)
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
DISPLAY BOARD
FL101 FLUORESCENT INDICATOR TUBE
2 R199
... (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 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... (11)
1-872-422- R2018
HEADPHONE BOARD
R137
A.F.D.
POWER BOARD, DCAC BOARD, HEADPHONE BOARD - • See page...
Service Manual - Page 39
... 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 (not used)
I...AVCC AVRH 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 to ...
Service Manual - Page 40
STR-K790
Pin No. Ground terminal
82
X0
- Connection for a crystal resonator
84
VCC3
- Power supply (+3.3V)
85
HDMI_S2...Power relay control signal output
59
VOL IC_CL
O Volume IC clock signal output
60
VOL IC_DA
O Volume IC data and latch signal output
61
PROTECTOR
I Protector status detect signal input
62
HP_RY
O Headphone relay control signal output
63
FUSE_DETECT
I Fuse...
Service Manual - Page 43
...693-737-11 TUNER (FM/AM) (AEP, UK) 1-532-464-33 FUSE (T2.5AL/250V) (AEP, UK) 1-533-452-12 FUSE, GLASS TUBE (DIA.5) (4A/125V)
(US, CND) 6-702-390-01...609-01 SCREW (TRANSISTOR) 3-703-244-00 BUSHING (2104), CORD
1-777-071-83 CORD, POWER (AEP, UK) 1-783-820-11 CORD, POWER (US, CND) A-1221-171-A MAIN BOARD, COMPLETE (US, CND) A-1221-172-A MAIN...693-728-11 TUNER (FM/AM) (CND)
Ref. STR-K790
Ver. 1.1
5-2.
Service Manual - Page 54
... FUSE FH952 1-533-217-41 HOLDER, FUSE
0 Q704 0 Q753 0 Q754 0 T901 0 T901
6-702-391-01 6-702-390-01 6-702-391-01 1-443-909-11 1-443-916-11
IC MP1620-OPY-MK IC MN2488-OPY-MK IC MP1620-OPY-MK POWER TRANSFORMER (US, CND) POWER ...1/4W
54
Description
Remark
A-1221-175-A STANDBY BOARD, COMPLETE (US, CND) A-1221-176-A STANDBY BOARD, COMPLETE (AEP, UK)
Ref. STR-K790
Ver. 1.1
STANDBY
Ref.
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can i put new digital pwb,coz fuse is busted.
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