Sony STR-DB830 - Fm Stereo/fm-am Receiver User manual

STR-DB830/DB930/V929X
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
FM STEREO FM-AM RECEIVER
MICROFILM
— Continued on next page —
SPECIFICATIONS
Manufactured under license from Dolby Laboratories
Licensing Corporation.
“DOLBY” and the double-D symbol aare trademarks
of Dolby Laboratories Licensing Corporation.
AUDIO POWER SPECIFICATIONS
POWER OUTPUT AND TOTAL HARMONIC DISTORTION : With 8
Ω loads, both channels driven, from 20 - 20,000 Hz ;rated 110 W
(STR-DB930) and 100 W (STR-DB830) per channel minimum
RMS power, with no more than 0.05 % total harmonic distortion
from 250 mW to rated output (USA model only).
Amplifier section
POWER OUTPUT
Stereo mode
North American model
(8 Ω20 Hz - 20 kHz, THD 0.05 %)
STR-DB930 : 110 W + 110 W
STR-DB830 : 100 W + 100 W
(4 Ω20 Hz - 20 kHz, THD 0.05 %)
STR-DB930 : 100 W + 100 W
STR-DB830 : 90 W + 90 W
Other model
100 W + 100 W (8 ΩDIN 1kHz)
100 W + 100 W (4 ΩDIN 1kHz)
90 W + 90 W (8 Ω 20Hz-20kHz,thd0.05%)
90 W + 90 W (4 Ω 20Hz-20kHz,thd0.05%)
Surround mode
North American model
(8 Ω20 Hz - 20 kHz, THD 0.09 %)
STR-DB930 : Front : 110 W + 110 W
Centera) : 110 W
Reara) : 110 W + 110 W
STR-DB830 : Front : 100 W + 100 W
Centera) : 100 W
Reara) : 100 W + 100 W
(4 Ω20 Hz - 20 kHz, THD 0.09 %)
STR-DB930 : Front : 100 W + 100 W
Centera) : 100 W
Reara) : 100 W + 100 W
STR-DB830 : Front : 90 W + 90 W
Centera) : 90 W
Reara) : 90 W + 90 W
Other model
(8 Ω20 Hz - 20 kHz, THD 0.09 %)
Front : 90 W + 90 W
Centera) : 90 W
Reara) : 90 W + 90 W
(4 Ω20 Hz - 20 kHz, THD 0.05 %)
Front : 90 W + 90 W
Centera) : 90 W
Reara) : 90 W + 90 W
a) Depending on the sound field settings and the source, there may be no
sound output.
Dynamic power output
STR-DB930 : 165 W + 165 W, 8 Ω
250 W + 250 W, 4 Ω
STR-DB830 : 155 W + 155 W, 8 Ω
240 W + 240 W, 4 Ω
Frequency response
PHONO : RIAA
equalization curve ±0.5 dB
CD, TAPE, MD/DAT, TAPE/MD, DVD/LD, TV/SAT, VIDEO
1,2, andVIDEO3:
10 Hz - 50 kHz + 0.5/-2
dB(with sound field, equalizer, and
bass boost bypassed)
Inputs(Analog)
PHONO :
Sensitivity : 2.5 mV
Impedance : 50 kΩ
S/Nb) : 86 dB(A, 2.5 mVc))
Photo : STR-DB930 (BLACK model)
w w w . x i a o y u 1 6 3 . c o m
Q Q
3
7
6 3
1 5 1 5
0 9 9
2
8 9
4 2
9 8
T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com

— 2 —
5.1CH INPUT, CD, DVD/LD, TAPE,
MD/DAT, TAPE/MD, TV/SAT,
VIDEO 1, 2, and VIDEO 3 :
Sensitivity : 150 mV
Impedance : 50 kΩ
S/Nb) : 96 dB(A, 150 mVc))
b) INPUT SHORT
c) Weighted network, input level
Input(Digital)
DVD/LD (coaxial) :
Sensitivity : -
Impedance : 75 Ω
S/N : 100 dB(A, 20 kHz LPF)
DVD/LD, TV/SAT, MD/DAT (Optical)
Sensitivity : -
Impedance : -
S/N : 100 dB(A, 20 kHz LPF)
Outputs TAPE, MD/DAT, TAPE/MD, (REC OUT)
; VUDEO 1, 2 (AUDIO OUT) :
Voltage : 150 mV
Impedance : 10 kΩ
FRONT L/R, CENTER, REAR L/R, SUB
WOOFER :
Voltage : 2V
Impedance : 1 kΩ
PHONES :
Accepts low-and high-impedance headphones
BASS BOOST +6 dB at 70 Hz
Sampling Frequency 48 kHz
EQ BASS : 100 Hz - 1.0 kHz(21 steps)
MID : 500 Hz - 5.0 kHz(21 steps)
TREBLE : 1.0 kHz - 10 kHz(21 steps)
Gain levels : ±10 dB, 1 dB step
FM tuner section
Tuning range 87.5 - 108.0 Hz
Antenna terminals
75 Ω, unbalanced
Sensitivity Mono : 18.3 dBf, 2.2 µV/75 Ω
Stereo : 38.3 dBf, 22.5 µV/75 Ω
Usable sensitivity
11.2 dBf, 1 µV/75 Ω
S/N Mono : 76 dB
Stereo : 70 dB
Harmonic distortion at 1 kHz
Mono : 0.3 %
Stereo : 0.5 %
Separation 45 dB at 1 kHz
Frequency response 30 Hz - 15 kHz +0.5/-2 dB
Sencitivity 60 dB at 400 kHz
AM tuner section
North American and E models
With 10-kHz tuning scale : 530 - 1,710 kHzd)
With 9-kHz tuning scale : 531 - 1,710 kHzd)
Other models
531 - 1,602 kHz
Antenna Loop antenna
Usable sensitivity
50 dB/m(at 1,000 kHz or 999 kHz)
S/N 54 dB(at 50 mV/m)
Hermonic distortion
0.5 %(50 mV/m, 400 kHz)
Selectivity At 9 kHz : 35 dB
At 10 kHz : 40 dB
d) You can change the AM tuning scale to 9kHz. After tuning in any AM
station, turn off the receiver. Hold down the TUNING + button and press
the 1/ubutton. All preset stations will be erased when you change the
tuning scale. To reset the scale to 10 kHz, repeat the procedure.
Video section
Inputs Video : 1 Vp-p 75 Ω
S-video : Y : 1 Vp-p 75 Ω
C : 0.286 Vp-p 75 Ω
Outputs Video : 1 Vp-p 75 Ω
S-video : Y : 1 Vp-p 75 Ω
C : 0.286 Vp-p 75 Ω
General
System Tuner section :
PLL quarts-locked digital synthesizer system
Preamplifier section :
Low-noise NF type equalizer
Power amplifier section :
Pure-complementary SEPP
Power requirements
USA, Canadian models
120VAC, 60Hz
Australian model
240VAC, 50Hz
Other model
220 – 230V 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 ×63/8in.)
including projecting parts and controls
Mass(Approx.)
13 kg(28 lb 11oz)
Supplied accessories
• FM wire antenna (1)
• AM loop antenna (1)
• Audio/video/control S connecting cord (1)
• CONTROLA1 connecting cord (1)
• FM antenna adapter (1)
STR-DB930, V929X only
• Remote commander RM-LJ302 (remote) (1)
• LR6 (size-AA) alkaline batteries (3)
STR-DB830 only
• Remote commander RM-PP402 (remote) (1)
• LR6 (size-AA) batteries (2)
Design and specifications are subject to change without notice.
MODEL IDENTIFICATION
– BACK PANEL –
MODEL
DB930: US model
DB930: Canadian model
DB930: Malaysia, Singapore models
V929X
DB930: Australian model
DB930: AEP model
DB830: US model
DB830: AEP model
PARTS No.
4-217-716-0π
4-217-716-1π
4-217-716-2π
4-217-716-3π
4-217-716-4π
4-217-716-5π
4-217-716-6π
4-217-716-7π
PART NO.
w w w . x i a o y u 1 6 3 . c o m
Q Q
3
7
6 3
1 5 1 5
0 9 9
2
8 9
4 2
9 8
T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com

— 3 —
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK !OR DOTTED LINEWITH
MARK !ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS
LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE
COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS
APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS
PUBLISHED BY SONY.
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!
LES COMPOSANTS IDENTIFÉS PAR UNE MARQUE !SUR LES
DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT
CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE
REMPLACER CES COMPOSANTS QUE PAR DES PIÈSES SONY
DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU
DANS LES SUPPÉMENTS PUBLIÉS PAR SONY.
TABLE OF CONTENTS
SAFETY CHECK-OUT
(US model only)
After correcting the original service problem, perform the
following safety checks before releasing the set to the customer:
Checktheantenna terminals, metal trim, “metallized” knobs,screws,
and all other exposed metal parts forAC leakage. Check leakage as
described below.
LEAKAGE
The AC leakage from any exposed metal part to earth ground
and from all exposed metal parts to any exposed metal part having
a return to chassis, must not exceed 0.5 mA (500 microampers).
Leakage current can be measured by any one of three methods.
1. Acommercial leakage tester, such as the Simpson 229 or RCA
WT-540A. Follow the manufacturers’instructions to use these
instruments.
2. A battery-operated AC milliammeter. The Data Precision 245
digital multimeter is suitable for this job.
3. Measuring the voltage drop across a resistor by means of a
VOM or battery-operatedAC voltmeter. The “limit” indication
is 0.75 V, so analog meters must have an accurate low-voltage
scale. The Simpson 250 and Sanwa SH-63Trd are examples of
a passive VOM that is suitable. Nearly all battery operated
digital multimeters that have a 2VAC range are suitable. (See
Fig. A)
Earth Ground
AC
voltmeter
(0.75V)
1.5k
Ω
0.15 µ F
Fig.A. Using an AC voltmeter to check AC leakage.
To Exposed Metal
Parts on Set
1. GENERAL ·········································································· 4
2. SERVICEING NOTE ······················································· 6
3. TEST MODE······································································ 6
4. DIAGRAMS
4-1. Block Diagram Main Section ··········································· 7
4-2. Block Diagram Power Section ········································· 9
4-3. Circuit Board Location ····················································· 11
4-4. Schematic Diagram Digital Section(1/3) ······················· 13
4-5. Schematic Diagram Digital Section(2/3) ······················· 15
4-6. Schematic Diagram Digital Section(3/3) ······················· 17
4-7. Printed Wiring Board Digital Section(1/2)····················· 19
4-8. Printed Wiring Board Digital Section(2/2)····················· 21
4-9. Printed Wiring Board Display Section ··························· 23
4-10. Schematic Diagram Display Section ······························ 25
4-11. Printed Wiring Board Speaker Switch Section··············· 27
4-12. Schematic Diagram Speaker Switch Section ················· 29
4-13. Printed Wiring Board Rear AMP Section ······················· 31
4-14. Schematic Diagram Rear AMP Section ························· 33
4-15. Printed Wiring Board Power Section ····························· 35
4-16. Schematic Diagram Power Section ································ 37
4-17. Printed Wiring Board Video Section ······························ 39
4-18. Schematic Diagram Video Section ································· 41
4-19. Printed Wiring Board Main Section ······························· 43
4-20. Schematic Diagram Main Section(1/2) ·························· 45
4-21. Schematic Diagram Main Section(2/2) ·························· 47
4-22. IC Pin Function ································································ 49
4-23. IC Block Diagrams ··························································· 58
5. EXPLODED VIEWS
5-1. Front Panel Section ·························································· 62
5-2. Chassis Section································································· 64
6. ELECTRICAL PARTS LIST ······································· 66
w w w . x i a o y u 1 6 3 . c o m
Q Q
3
7
6 3
1 5 1 5
0 9 9
2
8 9
4 2
9 8
T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com

— 4 —
SECTION 1
GENERAL
Identifying the Parts
Front Panel
11/uswitch
2FUNCTION control
MODE button
3INPUT MODE button
45.1CH INPUT button
5MASTER VOLUME control
6MUTING button
7SLEEP button (EXCEPT AEP)
RDS PTY button (AEP model)
8SPEAKERS selector
PHONES jack
9DOOR OPEN button
0DIMMER button
!¡ DISPLAY button
!™ A.F.D button/indicator
MODE button/indicator
2CH button/indicator
!£ MULTI CHANNELDECODING indicator
!¢ BASS BOOST button
!∞ EQUALIZER button
!§ TEST TONE button (EXCEPTAEP)
RDS EON button (AEP model)
!¶ PRESET TUNING +/- buttons
SHIFT button
FM/AM button
!• TUNNIG +/- buttons
FM MODE button
MEMORY button
!ª LEVEL button
@º SUR button
@¡ EQ button
@™ Cursor buttons (</>)
@£ Jog dial
@¢ SET UP button
@∞ NAME button
@§ ENTER button
w w w . x i a o y u 1 6 3 . c o m
Q Q
3
7
6 3
1 5 1 5
0 9 9
2
8 9
4 2
9 8
T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com

— 5 — — 6 —
SECTION 3
TEST MODE
FLUORESCENT INDICATORTUBETEST MODE
* All fluorescent segments are tested. When this test is activated,
all segments turn on at the same time, then each segment turns on
one after another.
* Procedure:
While depressing the ENTER, the LEVEL and the EQ buttons
simultaneously, press the power [1/u] button to turn on the main
power. All segments turn on at the same time, then each segment
turns on press the ENTER button.
FACTORY SET MODE
* All preset contents are reset to the default setting.
* Procedure:
While depressing the SET UP, the LEVEL and the ENTER buttons
simultaneously, press the power [1/u] button to turn on the main
power. The message Factry Set appears and the present contents
are reset to the default values.
ALL CLEAR MODE
* All preset contents are cleared when this mode is activated. Use
this mode before returning the product to clients upon completion
of repair.
* Procedure:
While depressing the SET UP button simultaneously, press the
power[1/u] button toturn on the main power.Themachineenters
the DEMO mode.DEMO mode: Wait a while, then the
demonstration starts. If the power [1/u] button is pressed often
the demonstration has started, the power is turned off, and the
demonstrationresumes if the power [1/u] button is pressed again.
ALL CLEAR mode; If the power [1/u] button is pressed often
themachine enters the DEMO mode, but before the demonstration
starts, the display is turned off. Press [1/u] again. No response is
returned. The press [1/u] again. The preset data is cleared and
the machine enters the normal power-on state.
SOUND FIELD CLEAR MODE
* The preset sound field is cleared when this mode is activated.
Use this mode before returning the product to clients upon
completion of repair.
* Procedure:
While depressing the SOUND FIELD MODE button, press the
power [1/u] button to turn on the main power. The message S.F
Initialize appears and initialization is performed.
AM CHANNEL STEP 9 kHz/10 kHz
SELECTION MODE (US,Canadian Model)
* Either the 9 kHz step or 10 kHz step can be selected for the AM
channel step.
* Procedure:
Set the FUNCTION to AM. Turn off the main power.
While depressing the TUNING+ button or the PRESETTUNING
+ button, press the power [1/u] button to turn on the main power.
Either the message AM 9kHz Step or AM 10kHz Step appears.
Select the desired step.
DSPTEST MODE
* It tests whether the DSP works correctly or not. When the DSP
test is activated, the test data is output from the DSP (IC1401:
CXD2712R) of the DIGITAL board and is written in the RAM
(IC1402:IDT71V016S). When the test data is read from the RAM
by the DSP, the data output must be equivalent to the original
data. If they disagree, an error is triggered. Errors can be caused
by the broken data line or defective soldering.
* Procedure
While pressing the SETUP, LEVEL and SUR buttons, press the
POWER button to enter the DSP test mode. The message DSP
TEST MODE appears. When an error occurs, the message DSP2
ERROR is displayed. When there is no error, the message DSP2
NOERROR appears and the 1 kHz signal is output to all channels.
Then, the mode can be switched the (SIGNWAVE) (THROUGH)
and (INPULSE) mode.
AUTOBETICAL MODE (AEP Model only)
* This mode is installed in the Europe models only. When this mode
is used, the receiver scans the broadcasts that can be received by
tuner, and sets up the broadcasts. Be sure to start scanning after
connecting the antenna.
Procedure:
Check that the antenna is connected. Press the POWER button
while pressing the MEMORY button to turn on the power. The
message“Autobetical select” appears and scanning starts by tuner.
VERSION MODE
* When this mode is used, the microprocessor version number is
displayed.
* Procedure:
Press the POWER button while pressing the ENTER, LEVEL,
andSUR buttons to turn on the power.The microprocessor version
number appears as follows.
SECTION 2
SERVICING NOTE
1. When the front panel is removed, theVR board is removed at the
same time. Consequently the LEDs cannot be turned on and the
sound volume cannot be increased or decreased from the remote
control.
2. When servicing the DIGITALboard, be sure to connect the earth
land of the DIGITAL board with the chassis frame so that the
earth potential of the DIGITAL board must not be floated from
the chassis frame.
Rear Panel
1 2 34 5 6 7 8
0!¡
9
!™!£!¢!∞!§!¶!•!ª@º@¡@™
1ANTENNA
2SIGNAL GND
3DIGITAL
45-1 CH INPUT
5SPEAKERS (FRONT)
6SPEAKERS (REAR)
7SPEAKERS (CENTER)
8PREOUT
9IMPEDANCE SELECTOR
!º AC OUTLET
!¡ AC power cord
!™ S-LINK
!£ 2ND AUDIO OUT
!¢ VIDEO 1
!∞ VIDEO 2
!§ DVD/LD
!¶ TV/SAT
!• TAPE
!ª MD/DAT
@º CD
@¡ PHONO
@™ MONITOR
w w w . x i a o y u 1 6 3 . c o m
Q Q
3
7
6 3
1 5 1 5
0 9 9
2
8 9
4 2
9 8
T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com

STR-DB830/DB930/V929X
— 7 — — 8 —
SECTION 4
DIAGRAMS
L
58
DATA
FM
AM
FM
75Ω
AM
DO
TUNED T. MUTE
STEREO
DATA
CLK
CE
L OUT
R OUT
TUNER UNIT
DO
TUNED
MUTING
STEREO
S DATA
S CLK
S LAT
R CH
: FM
: CD
• Signal Path
• RCH is omitted
PHONO
LCD
J301
LINPUT
LOUTPUT
J302
J001
DAT/MD
M OUT
1
J201
MONITOR
J202
J203
TV/LD
DVD
VIDEO 2
VIDEO 1 V1 IN
13
V1 OUT
15
V2 IN
9
V2 OUT
11
TV
3
LD
5
8
VEE
16
VCC
14
SW1
10
SW2
4
SW3
6
SW4
3 2
VIDEO SELECT
IC201
-5V
REG
IC202
-15V
+5V
4
3
2
8
6
11
5
9
12
CONTROL
CE
16
CLK
14
DI
15
AUDIO SELECT
IC301
MUTE
Q1502
S LAT
S CLK
S DATA
EQ AMP
IC302
MUTE
Q1506 IC1508
MUTE
Q1505
VIDEO(SW1)77
SYSTEM
CONTROL
IC201
VIDEO(SW2)76
VIDEO(SW3)
75
VIDEO(SW4)
72
16
59
AUTO STOP
60
STEREO
84
TUNER MUTE
S DATA
S CLK
S LAT
DO
TUNED
STEREO
TMUTE
56
DATA
57
CLOCK
55
LATCH
D
: PHONO
27
26
24
22
23
17
CONTROL
CE
16
CLK
14
DI
15
SELECTOR
IC303
S LAT
S CLK
S DATA
25
20
L
TAPE (MD) INPUT
LOUTPUT
Y
V1 O
VIDEO 1
INPUT
5
15
1
LD
M O
Y SWITCH
IC252
D201
VIDEO 1
OUTPUT
Y
C
C
C SWITCH
IC251
C
Y
J251
MONITOR
OUTPUT
J253
J252
J303
V1 O
13
15
1
V1 I
M O
13 V1 I
C
Y
DVD
5LD
LTV/DBS
L
J305
VIDEO2
INPUT
INPUT
LOUTPUT
L
VIDEO1 OUTPUT
LINPUT
J304
TM301
ANTENNA
4 14 15 13 2 3 1
10
12
10
LINPUT
DVD/LD
21
IR LINK
DET
IC001
DVD/LD
IR LINK
DET
IC002
TV/DBS
IR LINK
DET
IC003
DAT/MD
IR LINK
DET
IC004
MD/DAT
(INPUT)
(REC OYT)
DVD
COAXIAL IC007
14SW1 10SW2 4SW3 6SW4
14SW1 10SW2 4SW3 6SW4
INPUT
OUTPUT
INPUT
INPUT
OUTPUT
OUTPUT
DVD/LD
TV/DBS
INPUT
US,CANADIAN
MODEL AEP MODEL
5
4
6
3
4
9
SELECT
SWITCH
IC1005
7
B
A14
2B
A
IC1006
112
DI
108
DIG IN A
107
DIG IN B
A B
110
CL
111
CE
115
BY SYNC
113
DO
DIGITAL AUDIO
I/F RECEIVER
IC1101
D IN
3
BP SYNC
33
DI
36 CLK
38 CE
37
16
DATA
13
CK OUT
14
BCK
22
12.288M
34
ERROR
35
DO
X3501
12.288MHz
IC1404
IC1404 XI
8
SDIA0
84
SDIA1
85
SDWCK0
82
DOLBY
DIGITAL AUDIO DECODER
IC1301
24
AUDATA0
23
AUDATA1
22
AUDATA2
D0-7
SCK
69
1
SCCLK SI
68
CS
66
IC
62
2
SI
4
CS
5
IC
67
SO
3
SO
114
D1202
106
ANALOG/DIG
ERROR
A0-7
D0-7
SRAM
IC1402
SIA
117
SIB
118
SIC
119
XWE
74 XOE
70
16
20
23
25
.HD0
HD7
D0-7
HD0 HD7 13
XHDWR
25
HA0
AUDIO DSP
IC1401
HA0
15
XHDWR
9
XHDCS
14
XRST
26
16
XHDCS
27
HRDY
26
XRST
13
HRDY 5
SOD
15
SOD
30
CDTI
IC1202 IC1202
Q1201
Q1202
31
CDTO
29
CCLK
28
CS
32
PD
2
SOA
LRCK1
116 LRCK0
115 BCK1
114 3
SOB
4
SOC
27
L OUT1
LIN-
29
AUDIO CODEC
IC1503
CDTO
44
CDTI
43
CCLK
42
CS
41
PD
17
SDTO
9
MCLK1
39 BCLK
4LRCK
5
SDTI 1
6
SDTI 2
7
SDTI 3
8
LIN+
30
IC1504 IC1504
23
L OUT3
IC1508
IC1509
MUTE
Q1504
IC1510
24
R OUT3
25
L OUT2
IC1507
IC1505
IC1505
IC1506
MUTE
CONT
Q1507
Q1204
U DATA
50
DISP DATA 52
DISP CLK 49
DISP MR
51
SREQ
10
SOTO 9
SINO 87
MD2 89
MD0
90RESET
U CLOCK
U MREQ
U SREQ
SOT0
SIN1
MD2
MD0
U REST
105RY POWER RY POWER
AC MUTE
PROTECT
RY HP
RY FRONT A
RY FRONT B
RY CENTER
RY WOOFER
RY REAR
AC MUTE
PROTECTOR
HP RY
SP/A RY
SP/B RY
RY CENTER
RY WOOFER
REAR SP RY
C
92
XO
93
XI
X1201
16MHz
67STOP STOP
: DVD
IC11404
AEP ONLY
9FM DET 42
13 14
RDS
IC1
X1
4.33MHz
6
ANT LEVEL
16
ANT LEVEL
RDS DATA
RDS CLK
A
TUNER
26 CD
27 MD
25 TAPE
23
23
COM 20
COM 17
COM
161415
S LAT
S CLK
S DATA
SELECTOR
IC330
2
SW5
S DATA
S CLK
S LAT
47
EV DATA
48
EV CLK
46
EV STB
IC309
32
AUTO
10
11
12
15
LRCK
SDBCK0
83
IC1403
IC1403
IC1403
BCK0
113
IC1403
IC1403
DFS
11
99
CLKI
100
CLKO
X1401
10MHz
RELAY
DRIVE
Q301
L
LS
J1002
5.1 INPUT C
W
SELECTOR
IC1502
2CH L
19
S.1-L
20
S.1-LS
23
S.1-C
26
S.1-C
3
L
21
C
27
W
2
LS
24
17
L OUT
25
C OUT
4
W OUT
22LS OUT
161415
S LAT
S CLK
S DATA
RY301
J306
AUDIO
OUT
L
R
R CH
L
C
W
SL
DATA
CLK
LAT
B
XMODE
48
CSFLAG
25
XSTATE
17
109
XMODE
117
CSFLAG
118
XSTATE
116
AUTO
85
S MUTE
Q1102
D1203 Q1203
24 17
82
66
104
99
100
101
103
102
RY PRE PRE RY
98
RESET
D1201
IC304
35
96kHZ
S MUTE
4-1. BLOCK DIAGRAM MAIN SECTION
w w w . x i a o y u 1 6 3 . c o m
Q Q
3
7
6 3
1 5 1 5
0 9 9
2
8 9
4 2
9 8
T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com

STR-DB830/DB930/V929X
— 9 — — 10 —
RELAY
DRIVE
Q601
Q504, Q505
BIAS
14
5
15
6
1
2
3
VEE
VCC
IN
MUT
+VE
NF
-VE
13 VCC
POWER AMP(L)
IC501
+VDD
-VDD
BOOSTER
Q506
BOOSTER
Q507 CUR DET Q598
AF DETECTOR
Q509,510
Q511
Q604, Q605
BIAS
9
15 12
11
VEE
IN
+VE
NF
-VE
13 VCC
POWER AMP(C/W)
IC601
+VDD
-VDD
BOOSTER
Q606
BOOSTER
Q607 CUR DET Q698
AF DETECTOR
Q609,610
Q611
Q704, Q705
BIAS
MUTE
Q501,503
14
5
15
6
1
2
3
VEE
VCC
IN
MUT
+VE
NF
-VE
13 VCC
POWER AMP(SL)
IC701
+VDD
-VDD
BOOSTER
Q706
BOOSTER
Q707 CUR DET Q798
8
RY602
RELAY
DRIVE
Q546
RY501
RELAY
DRIVE
Q596
RY502
RELAY
DRIVE
Q645
RY601
RELAY
DRIVE
Q745
RY701
RELAY
DRIVE
Q681
RY681
RELAY
DRIVE
Q901
RY901
RELAY
DRIVE
Q671
RY671
JJ101
JJ102
L
R
L
R
L
R
R CH
R CH
R CH
C
S(L)
S(R)
R CH
SURROUND
SPEAKER
SUB
WOOFER
REAR
J701
PHONES
TM701
FRONT
SPEAKER
TM501
R CH
R CH
RESET
IC1206 58
3
6
+6.2
REG
Q1205
D801
SWITCH
Q613
PROTECTOR
Q547-549
F2
F1
F801
F802
D802-805
+VDD
-VDD
IMPEDANCE
SELECTOR
84
S801
F901
D901-904
CNP901
AC IN
L
R
:FM
:CD
D
• Signal Path
• RCH is omitted
IN
6
14 VCC
2+VE 3-VE
F803
F804
1
+5V
REG
3
+24V
1
+3.3V
REG
3
IC1203
IC1204
CNJ901
T902
MODE CONTROL
IC102
STOP
AC MUTE
PROTECTOR
PRE RY
REMOTO
CONTROL
RECEIVER
IC101
26
SIRCS Q101
RESET
Q103
77
RESET
POWER
S101
POWER KEY
66
F2 F1
16
JW925
47
STOP
RESET
TV/SAT
CONTL S
STATUS IN
MONITOR
CONTROL S
IN
VIDEO 1
CONTL S
OUT
DVD/LD
CONTL S
OUT
S-LINK
J204
J256
J255
J257
J258
LEVEL
CONTROL
Q257,258
11 4
LEVEL
CONTROL
Q255,256
LEVEL
CONTROL
Q254
3
2
5
67
1
IC254
SWITCH
Q251,252
ST-I/O
IC253
1 MUT
2
-15V
REG
IC402
3
1
+15V
REG
IC401
3
3
+5V
REG
1
-15V
+15V
+5V
+32V
REG
+32V
Q801
F805
1
+6.2V
REG
3
IC1205
DIGITAL +5V
CONT µCOM ETC
DISP µCOM+5.6V
T901
F903
US,Canadian
US,Canadian
MODEL
90
LED CLR
DOUT
3
RY HP
SP/A RY
SP/B RY
RY CENTER
RY WOOFER
RY REAR
58
URESET
C
ABUS A1 IN
63
I/O
BUFFER
Q104
ABUS OUT
67
FLOURESCENT
INDICATOR TUBE
FL101
29
DIN
26
LAT
34
CLK
24
CLR
4
LS
29
CLK
5
CL
30
DIN FL DAT
22
FL CLK
21
FL LAT
24
FL CLEAR
25
SPEAKER
SWITCH
SP B
65
SP A
64
6
S102
49
MD0
89
LED CE
87
LED CLK
88
LED DATA
D122,123,136-140
D147,149-157
D124,125,128
21 543
MBUS DVD
94
MBUS VIDEO 1
93
MBUS STA OUT
96
MBUS TV
95
IC254
UP
55
DOWN
56
2
4
8
5
MOTOR
DRIVE
IC103
51
MD2
20
SINO
19
SOTO
61
UDATA
62
UCLOCK
60
UMREQ
58
URESET
URESET
UMREQ
UCLOCK
UDATA
FLASH DO
FLASH DI
MD2
MD0
82
XO
XO
83
XI
XI
CARR OUT
IC106
SIRCS
CTL
I/O
SIRCS
DET.
IC107 Q105
+B Q129,130
SIRCS IN CA1 I
RESETCA1 O
IC105IC104
FL DRIVE FL DRIVE
RY POWER
IC408
RV401
VOLUME
L
C
W
SL
M
IN
14
DATA
9CLK
8LAT
10
15
OUT
DATA
CLK
LAT
IC414
IN
3
DATA
9CLK
8LAT
10
2
OUT
DATA
CLK
LAT
IN
14 15
OUT
IC410
IC410
IN
14
DATA
9CLK
8LAT
10
15
OUT
DATA
CLK
LAT
IC409
VOL CONT
IC416
VOL CONT
IC415
VOL CONT
B
DATA
CLK
LAT
59
USREQ
USREQ
RDS DATA
54 RDS CLK
53 RDS SIGNAL
46
RDS DATA
RDS CLK
ANT LEVEL
A
AF DETECTOR
Q709,710
A
B
R
L
JW927
JW928
MODEL
EXCEPT
1
+5V
REG
3
IC1501
CODEC +5V
D806-809
D1208
D1211
7
POWER RY
RESET
LAT
LAT D1209
X101
16MHz
15
33
212 11
16
514
98 99
X102
7.82MHz
DB930/V929 MODEL
9
BUFFER
Q253
US,Canadian MODEL
76
JOG DOWN
75
JOG UP
RV102
D140-145
79
FUNCTION DOWN
78
FUNCTION UP
RV101
19181716
LED DRIVER
IC108
915 20 2917
..
FUNCTION
KEY
KEY INPUT 1 KEY INPUT 2 KEY INPUT 3 KEY INPUT 4 KEY INPUT 5
38
S126-128
FUNCTION
KEY
39
S119-121
FUNCTION
KEY
40
S129,130
S115-118
FUNCTION
KEY
41
S111-114
S122-124
FUNCTION
KEY
43
S103-110
S131
TUNER
PHONO
TAPE
MD/DAT
CD
29
PRE OUT
FRONT
CENTER
4-2. BLOCK DIAGRAM POWER SECTION
w w w . x i a o y u 1 6 3 . c o m
Q Q
3
7
6 3
1 5 1 5
0 9 9
2
8 9
4 2
9 8
T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com

STR-DB830/DB930/V929X
— 11 — — 12 —
SP SW board
VIDEO board
S-VIDEO board
DIGITAL board
JOINT(Q) board
MAIN board
VOLUME board
REAR AMP board
ROTARY board
LED board
HP board
SP-SW board
F-VIDEO board
DISPLAY board
DC board
AC board
4/8 board
TUNER
board
4-3. CIRCUIT BOARD LOCATION
For schematic diagrams.
Note:
• All capacitors are in µF unless otherwise noted. pF: µµF
50 WV or less are not indicated except for electrolytics
and tantalums.
• All resistors are in Ωand 1/4W or less unless otherwise
specified.
• % : indicates tolerance.
•2: nonflammable resistor.
•1: fusible resistor.
•C: panel designation.
•U: B+ Line.
•V: B– Line.
•H: adjustment for repair.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
No mark : FM
• Voltagesare taken witha VOM (Inputimpedance 10 MΩ).
Voltagevariations may benoted due to normalproduction
tolerances.
• Waveforms are taken with a oscilloscope.
• Circled numbers refer to waveforms.
• Signal path.
F: FM
J: CD
c: DIGITAL
I: PHONO
• Abbreviation
CND :Canadian model
AUS :Australian model
MY :Malaysia model
SP :Singapore model
CH :Chinese model
THIS NOTE IS COMMON FOR PRINTEDWIRING
BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this necessary note is printed in each
block.)
• Waveform
DIGITAL Board
1 IC1201 (™ (XO)
2 IC1401 (CLKO)
3 IC1404 25
4.0Vp-p
3.5Vp-p
5.5Vp-p
4MHz
10MHz
12.288MHz
100
DISPLAY Board
TUNER Board
4 IC102 *™ (XO)
5 IC106 !§ (X OUT)
3.6Vp-p
3.8Vp-p
16.0MHz
7.28MHz
6 IC1 !£ (X 1)
2.7Vp-p
4.33MHz
For printed wiring boards.
Note:
•X: parts extracted from the component side.
•®: Through hole.
•b: Pattern from the side which enables seeing.
Note:
The components identified by
mark !or dotted line with mark
!are critical for safety.
Replace only with part number
specified.
Note:
Les composants identifiés par
une marque !sont critiques
pour la sécurité.
Ne les remplacer que par une
pièceportant lenumérospécifié.
w w w . x i a o y u 1 6 3 . c o m
Q Q
3
7
6 3
1 5 1 5
0 9 9
2
8 9
4 2
9 8
T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com

STR-DB830/DB930/V929X
— 13 — — 14 —
4-4. SCHEMATIC DIAGRAM DIGITAL SECTION(1/3) • See page 19 for Printed Wirig Board. • See page 12 for Waveforms. • See page 49 for IC Pin Functions. • See page 58 for IC Block Diagrams.
DIGITAL DOLBY,DTS DECODER
R1259
10k
SIGNAL CHANGE
DATA SELECTOR
w w w . x i a o y u 1 6 3 . c o m
Q Q
3
7
6 3
1 5 1 5
0 9 9
2
8 9
4 2
9 8
T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com

STR-DB830/DB930/V929X
— 15 — — 16 —
4-5. 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
+3.3V
w w w . x i a o y u 1 6 3 . c o m
Q Q
3
7
6 3
1 5 1 5
0 9 9
2
8 9
4 2
9 8
T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com

STR-DB830/DB930/V929X
— 17 — — 18 —
4-6. 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.
w w w . x i a o y u 1 6 3 . c o m
Q Q
3
7
6 3
1 5 1 5
0 9 9
2
8 9
4 2
9 8
T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com

STR-DB830/DB930/V929X
— 19 — — 20 —
4-7. PRINTEDWIRING BOARD DIGITAL SECTION(1/2) • See page 11 for circuit board location.
12
A
B
C
D
E
F
G
H
34567891011121314
• Semiconductor Location
Ref. No. Location Ref. 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
Ref. No. Location
IC1007 E-2
IC1101 C-2
IC1102 C-6
IC1201 C-7
IC1202 F-6
IC1301 C-4
IC1401 F-5
IC1402 F-3
IC1403 E-3
IC1404 D-3
IC1502 G-10
IC1503 F-8
IC1504 F-10
IC1505 G-7
IC1506 G-8
IC1507 G-9
IC1508 G-12
IC1509 F-12
IC1510 E-12
IC1554 E-10
Q1201 E-6
Q1202 E-6
Q1501 E-11
Q1502 F-11
Q1503 F-11
Q1504 G-11
Q1505 G-11
Q1506 H-11
Q1507 E-11
Ref. No. Location
w w w . x i a o y u 1 6 3 . c o m
Q Q
3
7
6 3
1 5 1 5
0 9 9
2
8 9
4 2
9 8
T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com

STR-DB830/DB930/V929X
— 21 — — 22 —
4-8. PRINTED WIRING BOARD DIGITAL SECTION(2/2) • See page 11 for circuit board location.
39
US,CND,
AUS
MODEL
US,CND,
AUS
MODEL
EXCEPT
US,CND,
AUS
MODEL
EXCEPT
US,CND,
AUS
MODEL
43
40
(Page 36)
(Page 35)
(Page 24)
(Page 44)
DB930,V929
MODEL
DB830
MODEL
(Page 36) (Page 40)
VOLUME BOARD
12
A
B
C
D
E
F
G
H
345678910111213
• Semiconductor Location
Ref. No. Location Ref. No. Location
D1002 C-12
D1201 C-7
D1202 B-8
D1203 B-9
D1204 C-2
D1205 C-2
D1206 C-4
D1207 C-4
D1210 B-10
IC1001 D-13
IC1002 C-13
IC1003 B-13
IC1004 B-13
IC1006 C-12
IC1203 A-3
IC1204 A-3
IC1205 C-4
IC1206 D-5
IC1501 C-5
Q1203 B-9
Q1204 C-8
Q1205 C-3
w w w . x i a o y u 1 6 3 . c o m
Q Q
3
7
6 3
1 5 1 5
0 9 9
2
8 9
4 2
9 8
T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com

STR-DB830/DB930/V929X
— 23 — — 24 —
4-9. PRINTEDWIRING BOARD DISPLAY SECTION • See page 11 for circuit board location.
CN120
1
2
LED BOARD
(PAGE 28)
Z
1
30
50
80
100
DB830
DB930/V929
DB930:AEP,MY.SP,AUS
/V929
SPEAKERS
1
5
DIGITAL BOARD
(PAGE 21)
C
VOLUME BOARD
(PAGE 40)
X
11
(11)
1-673-361-
1
71
4
85
VOLUME
BOARD
(PAGE 40)
L
ROTARY BOARD
(PAGE 27)
J
16
12
A
B
C
D
E
F
G
34567891011121314
K
SP-SW
BOARD
(PAGE 28)
1
8
• Semiconductor Location
Ref. No. Location Ref. No. Location
D101 F-14
D102 F-11
D103 F-4
D104 F-4
D107 E-9
D124 E-3
D125 E-2
D126 F-4
D127 F-2
D128 E-3
D129 E-2
Ref. No. Location
D132 C-8
D134 C-8
D135 C-8
D136 D-4
D137 D-4
D138 D-5
D139 D-6
D140 D-7
D141 D-8
D142 D-9
D143 D-10
D144 D-11
D145 D-12
D147 E-4
D149 B-10
D150 B-10
D151 C-10
D152 B-13
D153 C-13
D154 D-13
D155 D-12
D156 D-12
D157 E-12
IC101 E-13
IC102 D-10
IC103 E-14
IC104 E-7
IC105 F-10
IC106 E-4
IC107 F-3
IC108 D-2
Ref. No. Location Ref. No. Location
Q101 E-13
Q102 D-5
Q103 C-11
Q104 F-4
Q105 F-4
Q129 F-3
Q130 F-2
w w w . x i a o y u 1 6 3 . c o m
Q Q
3
7
6 3
1 5 1 5
0 9 9
2
8 9
4 2
9 8
T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com

STR-DB830/DB930/V929X
— 25 — — 26 —
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.
TO LED BOARD
(PAGE 29)
SWITCH
w w w . x i a o y u 1 6 3 . c o m
Q Q
3
7
6 3
1 5 1 5
0 9 9
2
8 9
4 2
9 8
T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com

STR-DB830/DB930/V929X
— 27 — — 28 —
4-11. PRINTEDWIRING BOARD SPEAKER SWITCH SECTION • See page 11 for circuit board location.
16
DISPLAY BOARD
(PAGE 23)
K
DISPLAY BOARD
(PAGE 24)
J
1-673-363-
1-673-366-
1-673-364-
85
3
1
1
1
DISPLAY BOARD
(PAGE 23)
Z
12
A
B
C
D
E
F
G
H
I
3456789101112
w w w . x i a o y u 1 6 3 . c o m
Q Q
3
7
6 3
1 5 1 5
0 9 9
2
8 9
4 2
9 8
T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com

STR-DB830/DB930/V929X
— 29 — — 30 —
4-12. SCHEMATIC DIAGRAM SPEAKER SWITCH SECTION
26
26
w w w . x i a o y u 1 6 3 . c o m
Q Q
3
7
6 3
1 5 1 5
0 9 9
2
8 9
4 2
9 8
T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com

STR-DB830/DB930/V929X
— 31 — — 32 —
4-13. PRINTEDWIRING BOARD REAR AMP SECTION • See page 11 for circuit board location.
(PAGE 44) (PAGE 43)
(PAGE 43)(PAGE 43)
(PAGE 44)
AEP MODEL
12
A
B
C
D
E
F
G
H
I
3456789101112
16
Ref. No. Location
D701 H-9
D702 H-10
D703 H-10
D704 H-10
D705 F-3
D706 F-4
D749 F-9
D751 G-2
D752 H-2
D753 H-2
D754 H-3
D798 F-11
D799 F-3
IC701 G-6
Q704 G-10
Q705 H-10
Q706 H-9
Q707 H-11
Q708 G-11
Q709 F-3
Q710 F-4
Q754 G-3
Q755 H-3
Q756 H-2
Q757 H-4
Q758 G-4
Q798 F-11
Q799 G-4
• Semiconductor
Location
w w w . x i a o y u 1 6 3 . c o m
Q Q
3
7
6 3
1 5 1 5
0 9 9
2
8 9
4 2
9 8
T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com

STR-DB830/DB930/V929X
— 33 — — 34 —
4-14. SCHEMATIC DIAGRAM REAR AMP SECTION • See page 58 for IC Block Diagrams.
AEP MODEL AEP MODEL
AEP MODEL
The components identified by
mark !or dotted line with mark
!are critical for safety.
Replace only with part number
specified.
Les composants identifiés par
une marque !sont critiques
pour la sécurité.
Ne les remplacer que par une
pièceportant lenumérospécifié.
w w w . x i a o y u 1 6 3 . c o m
Q Q
3
7
6 3
1 5 1 5
0 9 9
2
8 9
4 2
9 8
T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com

STR-DB830/DB930/V929X
— 35 — — 36 —
4-15. PRINTEDWIRING BOARD POWER SECTION • See page 11 for circuit board location.
16
4
1
MAIN
U
12
A
B
C
D
E
F
G
H
34567891011121314
(Page 44)
(Page 22)
(Page 44)
(Page 21)
(Page 21)
Ref. No. 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
• Semiconductor
Location
w w w . x i a o y u 1 6 3 . c o m
Q Q
3
7
6 3
1 5 1 5
0 9 9
2
8 9
4 2
9 8
T E L 1 3 9 4 2 2 9 6 5 1 3 9 9 2 8 9 4 2 9 8 0 5 1 5 1 3 6 7 3
Q Q
TEL [phone] QQ 376315150 892498299 TEL [phone] QQ 376315150 892498299
http://www.xiaoyu163.com
http://www.xiaoyu163.com