Sony STR-DB830 Support Question
Sony STR-DB830 Support Question
Find answers below for this question about Sony STR-DB830 - Fm Stereo/fm-am Receiver.Need a Sony STR-DB830 manual? We have 3 online manuals for this item!
Question posted by iroc4485 on April 25th, 2023
Keeps Blowing Fuses Model Str-db830
My receiver keeps blowing 801and 802 fuses when i turn the unit on and then no volume please help thanks
Current Answers
Answer #1: Posted by SonuKumar on April 25th, 2023 10:41 AM
SonuKumar
Member since:
May 9th, 2021 Points: 16,621,300
Member since:
May 9th, 2021 Points: 16,621,300
If your Sony STR-DB830 receiver keeps blowing the 801 and 802 fuses when you turn it on, and you're experiencing no volume, it suggests that there may be a fault or short circuit within the unit. Here are a few troubleshooting steps you can try:
- Check for loose connections: Ensure that all speaker wires and other connections are secure and properly connected to the receiver. Loose or shorted connections can cause fuses to blow.
- Disconnect external devices: Disconnect any external devices connected to the receiver, such as speakers, DVD players, or gaming consoles. This will help determine if the issue is related to one of the external devices causing a short circuit.
- Replace the blown fuses: If the fuses keep blowing, it's important to replace them with the correct type and rating. Make sure to use fuses with the same voltage and current rating as the original ones. If the fuses blow again immediately or shortly after replacement, it indicates a more significant issue.
- Professional repair: Given that the issue persists even after replacing the fuses, it's recommended to seek professional assistance. There may be an internal component malfunction or a short circuit within the receiver that requires skilled repair. Contact Sony customer support or bring the receiver to an authorized service center to have it inspected and repaired by trained technicians.
Please note that working with electronic devices and internal components can be potentially dangerous. If you are not experienced in electronics repair, it is best to consult a professional technician to avoid any harm or further damage to the equipment.
Please respond to my effort to provide you with the best possible solution by using the "Acceptable Solution" and/or the "Helpful" buttons when the answer has proven to be helpful.
Regards,
Sonu
Your search handyman for all e-support needs!!
Related Sony STR-DB830 Manual Pages
Service Manual - Page 1
...Licensing Corporation.
FM STEREO FM-AM RECEIVER
9-928-896-12 2002B1600-1 © 2002.02
Sony Corporation
Home Audio Company Published by Sony Engineering Corporation
STR-DB830/DB930/V929X
SERVICE MANUAL
Ver 1.1 2002. 02
Photo : STR-DB930 (BLACK model)
US Model
STR-DB930/DB830
Canadian Model
STR-DB930
AEP Model
STR-DB930/DB830
E Model Australian Model
STR-DB930
Chinese Model
STR-V929X...
Service Manual - Page 2
... AC 50/60Hz
Power consumption
STR-DB930
Canadian
:400 VA
Other models :290 W
STR-DB830
North American models : 280 W
AC outlets
North American models : 2 switched, total 120 W/1A
Other models : 1 switched, max 100 W
Dimensions 430 × 405 × 160.5 mm
(17 × 16 × 63/8 in any AM
station, turn off the receiver. VUDEO 1, 2 (AUDIO OUT) :
Voltage : 150 mV
Impedance...
Service Manual - Page 6
...
15 14 16
S LAT
S CLK
S DATA
DIGITAL AUDIO I/F RECEIVER
IC1101
DATA 16
CK OUT 13
3 D IN
BCK ...
INPUT OUTPUT
J202
VIDEO 2
INPUT OUTPUT
US,CANADIAN MODEL
TV/DBS
AEP MODEL
TV/LD
J203 INPUT
DVD/LD
DVD
INPUT
Y ...TM301 ANTENNA FM 75Ω
AM
TUNER UNIT
FM AM
ANT LEVEL 6
FM DET 9 L OUT 10
RDS 2 4 IC1
16 13 14
X1 4.33MHz AEP ONLY
R OUT 12 R CH
DO TUNED STEREO T. STR-DB830/DB930/V929X...
Service Manual - Page 7
...MODEL
+B
Q129,130
SIRCS DET.
F901
EXCEPT US,Canadian
MODEL
F903
US,Canadian MODEL
JW925
CNJ901
CNP901 AC IN STR-DB830/DB930/V929X
Ver 1.1 2002. 02
4-2.
BLOCK DIAGRAM POWER SECTION
L
C
W
B
SL DATA
CLK LAT
VOLUME...omitted due to same as L-CH. • Signal Path
:FM :CD
C
TM701 S(L)
SURROUND SPEAKER S(R)
L JJ101 SUB WOOFER
...
D1208
IC101 REMOTO CONTROL RECEIVER
RESET Q103
D1211
+6.2...
Service Manual - Page 8
... AMP board
JOINT(Q) board MAIN board VOLUME board
ROTARY board
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS. (In addition to ground
under no-signal (detuned) conditions. sont critiques pour la sécurité. Note: Les composants identifiés par une marque ! STR-DB830/DB930/V929X
4-3. are taken with a oscilloscope...
Service Manual - Page 10
SCHEMATIC DIAGRAM DIGITAL SECTION(2/3) • See page 19 for printed wirig board. • See page 12 for Waveforms. • See page 51 for IC Pin Functions. • See page 58 for IC Block Diagrams.
CXD9511Q
DIGITAL PWB FROM SUFFIX-12
+3.3V
- 15 -
- 16 - STR-DB830/DB930/V929X
Ver 1.1 2002. 02
4-5.
Service Manual - Page 11
SCHEMATIC DIAGRAM DIGITAL SECTION(3/3) • See page 19 for printed wirig board. • See page 54 for IC Pin Functions. • See page 58 for IC Block Diagrams.
STR-DB830/DB930/V929X
- 17 -
- 18 - 4-6.
Service Manual - Page 12
... BOARD DIGITAL SECTION(1/2) • See page 11 for circuit board location.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
A
B
C
D
E
F
G
H
• Semiconductor Location
Ref. No. No. No. STR-DB830/DB930/V929X
4-7. No. Location
D1001 E-2 D1101 C-3 D1102 C-6 D1208 A-9 D1209 D-12 D1211 A-9 D1501 F-11 D1504 G-11 D1505 H-11
IC1005 D-2
IC1007 E-2 IC1101 C-2 IC1102 C-6 IC1201...
Service Manual - Page 13
... circuit board location.
1
2
3
4
5
6
7
A
8
9
(Page 36)
10
11
VOLUME BOARD (Page 40)
STR-DB830/DB930/V929X
Ver 1.1 2002. 02
12
13
39
B
(Page 44)
C
(Page 24)
D
E (Page 35)
(Page 36)
F
40
G
DB930,V929 MODEL
DB830 MODEL
US,CND, AUS MODEL
EXCEPT US,CND, AUS MODEL
US,CND, AUS MODEL
EXCEPT US,CND, AUS MODEL
H
• Semiconductor Location
Ref. 4-8. No. DIGITAL PWB...
Service Manual - Page 14
... BOARD C (PAGE 21)
11 1-673-361- (11)
VOLUME BOARD X (PAGE 40)
- 23 -
- 24 - PRINTED WIRING BOARD DISPLAY SECTION • See page 11 for circuit board location.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
A
SPEAKERS
B
C
D
E
1
K
F
SP-SW BOARD
(PAGE 28)
8
G
16
• Semiconductor Location
Ref. No. Location Ref. No. STR-DB830/DB930/V929X
4-9. No. Location Ref.
Service Manual - Page 15
4-10. SCHEMATIC DIAGRAM DISPLAY SECTION • See page 12 for Waveforms. • See page 56 for IC Pin Functions. • See page 60 for IC Block Diagrams.
STR-DB830/DB930/V929X
SWITCH
- 25 -
TO LED BOARD (PAGE 29)
- 26 -
Service Manual - Page 16
PRINTED WIRING BOARD SPEAKER SWITCH SECTION • See page 11 for circuit board location.
1
2
3
4
5
6
7
8
A
K
DISPLAY BOARD (PAGE 23)
9
10
B
5
8
1
J
DISPLAY BOARD
C
(PAGE 24)
1
D
11
12
3 1
E
F
1-673-363-
1-673-364-
G
H
I
16
Z
DISPLAY BOARD (PAGE 23)
1-673-366-
- 27 -
- 28 - STR-DB830/DB930/V929X
4-11.
Service Manual - Page 18
...
H-2
Q757
H-4
Q758
G-4
Q798
F-11
Q799
G-4
- 31 -
- 32 - PRINTED WIRING BOARD REAR AMP SECTION • See page 11 for circuit board location.
1
2
3
4
5
6
7
8
9
10
11
12
A
B
AEP MODEL
C
D
(PAGE 43)
E
(PAGE 44)
(PAGE 43)
F
(PAGE 43) (PAGE 44)
G
H
16
I
• Semiconductor Location
Ref. No. STR-DB830/DB930/V929X
4-13.
Service Manual - Page 20
PRINTED WIRING BOARD POWER SECTION • See page 11 for circuit board location.
1
2
3
4
5
6
7
A
4
1
(Page 21)
B
C
D
E
F
G
16
• Semiconductor
H Location Ref. STR-DB830/DB930/V929X
4-15. Location
D801
B-9
D804
F-2
D805
F-2
D806
A-12
D810
B-12
D901
C-6
D902
C-6
D903
D-6
D904
C-6
D905
B-6
D907
A-5
IC1
F-9
IC399
F-12
Q801
B-12
Q901
A-5
U MAIN
(...
Service Manual - Page 22
.../SAT
(Page 22)
MONITOR
9
10
11
12
13
1
7
MAIN BOARD (Page 43)
V
1-673-367-
(PAGE 24)
MAIN BOARD
(PAGE 21)
1-673-362(PAGE 21)
- 40 - STR-DB830/DB930/V929X
4-17. No. Location
D251
F-5
IC202
G-6
IC251
F-4
IC252
F-4
IC253
F-3
IC254
F-1
IC1401 H-11
IC1402 G-11
IC1403 F-11
Q251
G-3
Q252
G-3
Q253
G-5
Q254
F-2
Q255
F-2
Q256
G-2
Q257
G-3
Q258...
Service Manual - Page 24
No. STR-DB830/DB930/V929X
4-19. No. No. PRINTED WIRING BOARD MAIN SECTION • See page 11 for circuit board location.
1
2
3
4
5
6
7
8
9
A
D671 Q671 R670
B DB930/V929X MODEL
C
D
US,CND,
E
AUS MODELS
EXCEPT US,CND,
AUS MODELS
F
DB930/V929X MODEL
RY671
R669 R671
G
MD/ TAPE
H
DB930/V929X MODEL
I
CC4-14,18,54-64,68:AEP MODEL
F-VIDEO BOARD
(Page 40...
Service Manual - Page 25
SCHEMATIC DIAGRAM MAIN SECTION(1/2)
STR-DB830/DB930/V929X
R401 1k
- 45 - TO DIGITAL BOARD
(3/3) (PAGE 17)
- 46 - 4-20.
Service Manual - Page 44
...model CH : Chinese model
• SEMICONDUCTORS In each case, u: µ, for example: uA...: µA... , uPA... , µPA... , uPB... , µPB... , uPC... , µPC... , uPD..., µPD...
When indicating parts by mark ! are seldom required for safety. Description < EARTH >
Remarks
* EB901 1-537-738-21 TERMINAL, EARTH (US,CND)
< FUSE....
The components identified by...
Service Manual - Page 45
...233;.
- 67 - Part No. Part No. F802
1-533-311-11 FUSE, GLASS CYLINDRICAL(DIA.5) 8A/125V 1-533-311-11 FUSE, GLASS CYLINDRICAL(DIA.5) 8A/125V
< TRANSISTOR >
C1016 1-163-251-11 ...% 50V
ELECT
470uF 20% 16V
(EXCEPT DB830 : US,AEP)(SUFFIX-12)
ELECT
470uF 20% 16V
(DB830 : US,AEP)(SUFFIX-12)
CERAMIC CHIP 0.1uF
50V
(SUFFIX-12)
The components identified by mark ! Description
< CONNECTOR >...
Service Manual - Page 64
Date
Description of Revision
1.0
1999.04 New
1.1
2002.02 DIGITAL board suffix-12 contents addition
(ECN-TAC01242) STR-DB830/DB930/V929X
REVISION HISTORY
Clicking the version allows you to jump to the revised page. Also, clicking the version at the upper right on the revised page allows you to jump to the next revised page.
Ver.
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