Sony STR-DA2ES - Fm Stereo/fm-am Receiver User manual

SERVICE MANUAL
FM STEREO FM-AM RECEIVER
SPECIFICATIONS
STR-DA2ES/DB1080
Photo: STR-DA2ES
Ver 1.1 2003.07
9-874-061-02 Sony Corporation
2003G05-1 Home Audio Company
C2003.07 Published by Sony Engineering Corporation
US Model
Canadian Model
STR-DA2ES
AEP Model
UK Model
E Model
STR-DB1080
– Continued on next page –
This receiver incorporates Dolby* Digital and Pro Logic Surround
and the DTS** Digital Surround System.
* Manufactured under license from Dolby Laboratories.
“Dolby”, “Pro Logic” and the double-D symbol are
trademarks of Dolby Laboratories.
**“DTS”, “DTS-ES Extended Surround” and “Neo:6” are
trademarks of Digital Theater Systems, Inc.
AUDIO POWER SPECIFICATIONS
POWER OUTPUT AND TOTAL
HARMONIC DISTORTION:
(Modelsofarea code U only)
With 8 ohm loads, both channels driven, from
20 – 20,000 Hz; rated 100 watts per channel
minimum RMS power, with no more than
0.09 % total harmonic distortion from
250 milliwatts to rated output.
Amplifier section
POWER OUTPUT
Models of area code U, CA
Rated Power Output at Stereo Mode
(8 ohms 20 Hz – 20 kHz, THD 0.09 %)
100 W + 100 W
(4 ohms 20 Hz – 20 kHz, THD 0.09 %)
80 W + 80 W
Reference Power Output
(8 ohms 20 Hz – 20 kHz, THD 0.09 %)
FRONT1):100 W + 100 W
CENTER1): 100 W
SURR1): 100 W + 100 W
SURR BACK1): 100 W
(4 ohms 20 Hz – 20 kHz, THD 0.09 %)
FRONT:1) 80 W + 80 W
CENTER1): 80 W
SURR1): 80 W + 80 W
SURR BACK1): 80 W
Models of other area code
Rated Power Output at Stereo Mode
(8 ohms 1 kHz, THD 0.7 %)
100 W + 100 W2)
(4 ohms 1 kHz, THD 0.7 %)
90 W + 90 W2)
Reference Power Output2)
(8 ohms 1 kHz, THD 0.7 %)
FRONT1): 100 W + 100 W
CENTER1): 100 W
SURR1): 100 W + 100 W
SURR BACK1): 100 W
(4 ohms 1 kHz, THD 0.7 %)
FRONT1): 90 W + 90 W
CENTER1): 90 W
SURR1): 90 W + 90 W
SURR BACK1): 90 W
(8 ohms 20 Hz – 20 kHz, THD 0.09 %)
FRONT1): 90 W + 90 W
CENTER1): 90 W
SURR1): 90 W + 90 W
SURR BACK1): 90 W
(4 ohms 20 Hz – 20 kHz, THD 0.09 %)
FRONT1): 80 W + 80 W
CENTER1): 80 W
SURR1): 80 W + 80 W
SURR BACK1): 80 W
1) Depending on the sound field settings and the
source, there may be no sound output.
2) Measured under the following conditions:
Area code Power requirements
E 240 V AC, 50 Hz
SP, CEL, CEK, KR 230 V AC, 50 Hz
Frequency response
PHONO
CD/SACD, TAPE,
MD/DAT, TV/SAT,
DVD/LD, VIDEO 1, 2,
3
Inputs (Analog)
PHONO
MULTI CH IN 1, 2,
CD/SACD, TAPE,
MD/DAT, DVD/LD,
TV/SAT, VIDEO 1, 2,
3
3) INPUT SHORT.
4) Weighted network, input level.
RIAA equalization curve
±0.5 dB
10 Hz – 100 kHz
+0.5/–2 dB (when
ANALOG DIRECT is
selected)
Sensitivity: 2.5 mV
Impedance: 50 kilohms
S/N3): 86 dB (A, 2.5 mV4))
Sensitivity: 150 mV
Impedance: 50 kilohms
S/N3): 96 dB
(A, 150 mV4))

2
STR-DA2ES/DB1080
Inputs (Digital)
DVD/LD (Coaxial)
DVD/LD, TV/SAT,
MD/DAT, VIDEO3
(Optical)
Outputs
TAPE, MD/DAT
(REC OUT), VIDEO
1, 2 (AUDIO OUT)
FRONT L/R,
CENTER,
SURROUND L/R,
SURROUND BACK,
SUB WOOFER
EQ
BASS: 99 Hz~1.0 kHz
MID (FRONT L/R, CENTER only):
198 Hz~10 kHz
TREBLE: 1.0 kHz~10 kHz
Gain levels: ±10 dB, 0.5 dB step
Impedance: 75 ohms
S/N: 100 dB
(A, 20 kHz LPF)
S/N: 100 dB
(A, 20 kHz LPF)
Voltage: 150 mV
Impedance: 2.2 kilohms
Voltage: 2 V
Impedance: 1 kilohms
FM tunersection
Tuning range 87.5 - 108.0 MHz
Antenna terminals 75 ohms, unbalanced
Sensitivity
Mono: 18.3 dBf, 2.2 µV/75 ohms
Stereo:
38.3 dBf, 22.5 µV/75 ohms
Usable sensitivity 11.2 dBf, 1 µV/75 ohms
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
Selectivity 60 dB at 400 kHz
AM tuner section
Tuning range
Models of area code U, CA
With 10-kHz tuning scale: 530 – 1,710 kHz5)
With 9-kHz tuning scale: 531 – 1,710 kHz5)
Models of area code E
With 10-kHz tuning scale: 530 – 1,610 kHz5)
With 9-kHz tuning scale: 531 – 1,602 kHz5)
Models of area code SP, CEL, CEK, KR
With 9-kHz tuning scale: 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)
Harmonic distortion 0.5 % (50 mV/m,
400 Hz)
Selectivity
At 9 kHz: 35 dB
At 10 kHz: 40 dB
5) You can change the AM tuning scale to 9 kHz or
10 kHz. After tuning in any AM station, turn off
the receiver. Hold down TUNING + and press
?/1. All preset stations will be erased when you
change the tuning scale. To reset the scale to
10 kHz (or 9 kHz), repeat the procedure.
Video section
Inputs/Outputs
Video: 1 Vp-p, 75 ohms
S-video: Y: 1 Vp-p, 75 ohms
C: 0.286 Vp-p, 75 ohms
COMPONENT VIDEO
(Except for models of area code CEL, CEK):
Y: 1 Vp-p, 75 ohms
B-Y: 0.7 Vp-p, 75 ohms
R-Y: 0.7 Vp-p, 75 ohms
General
Power requirements
Area code Power requirements
U, CA 120 V AC, 60 Hz
CEL, CEK 230 V AC, 50/60 Hz
SP 220 – 230 V AC, 50/60 Hz
E 120/220/240 V AC, 50/60 Hz
KR 220 – 230 V AC, 60 Hz
Power consumption
Area code Power consumption
U290 W
CA 340 VA
CEL, CEK 300 W
SP, E, KR 300 W
Power consumption (during standby mode)
0.8 W (when “POWER SAVE” in the CUSTOMIZE
menu is set to “OFF”)/0.5 W (“ON”)
AC outlets
Area code AC outlets
U, CA 2 switched, 120 W/1A MAX
SP, CEL, CEK 1 switched, 100 W MAX
E2switched, 100 W MAX
Dimensions 430 ×161 ×400 mm
including projecting parts
and controls
Mass (Approx.) 13.3 kg
Supplied accessories
FM wire antenna (1)
AM loop antenna (1)
Models of area code U, CA;
Audio/video/control S cord (1)
Control S cord (mini jack) (1)
Remote commander RM-PG411 (1)
R6 (size-AA) batteries (2)
Models of other area codes;
Remote commander RM-LP211 (1)
R6 (size-AA) batteries (3)
Design and specifications are subject to change
without notice.

3
STR-DA2ES/DB1080
Notes on chip component replacement
•Never reuse a disconnected chip component.
•Notice that the minus side of a tantalum capacitor may be dam-
aged by heat.
Fig. A. Using an AC voltmeter to check AC leakage.
1.5 k Ω 0.15 µ FAC
voltmete
r
(0.75 V)
To Exposed Metal
Parts on Set
Earth Ground
SAFETY CHECK-OUT
After correcting the original service problem, perform the follow-
ing safety check before releasing the set to the customer:
Check the antenna terminals, metal trim, “metallized” knobs,
screws, and all other exposed metal parts for AC leakage.
Check leakage as described below.
LEAKAGE TEST
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 microamperes.).
Leakage current can be measured by any one of three methods.
1. A commercial leakage tester, such as the Simpson 229 or RCA
WT-540A. Follow the manufacturers’instructions to use these
instruments.
2. A battery-operatedAC milliammeter.The Data Precision 245
digital multimeter is suitable for this job.
3. Measuringthe voltagedrop across a resistor bymeans of aVOM
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 pas-
sive VOM that is suitable. Nearly all battery operated digital
multimeters that have a 2VAC range are suitable. (See Fig.A)
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!
LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE 0
SUR LES DIAGRAMMES SCHÉMATIQUES ET LA LISTE
DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ
DE FONCTIONNEMENT. NE REMPLACER CES COM-
POSANTS QUE PAR DES PIÈCES SONY DONT LES
NUMÉROS SONT DONNÉS DANS CE MANUEL OU
DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK 0OR DOTTED
LINE WITH MARK 0ON 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 PUB-
LISHED BY SONY.

4
STR-DA2ES/DB1080
1. SERVICING NOTES ............................................... 5
2. GENERAL ................................................................... 6
3. DISASSEMBLY
3-1. Disassembly Flow ........................................................... 7
3-2. Case (414535) ................................................................. 8
3-3. S-VIDEO board, VIDEO Board,
UP CONVERT Board and Tuner .................................... 8
3-4. VIDEO.AU Board ........................................................... 9
3-5. DIGITAL Board .............................................................. 9
3-6. MAIN Board, MIX Board .............................................. 10
4. TEST MODE.............................................................. 11
5. ELECTRICAL ADJUSTMENT............................ 12
6. DIAGRAMS
6-1. Block Diagram
– TUNER/VIDEO INPUT Section –.............................. 13
6-2. Block Diagram – AUDIO DSP Section –...................... 14
6-3. Block Diagram – AUDIO CONTROL Section – .......... 15
6-4. Block Diagram – POWER AMP Section – ................... 16
6-5. Block Diagram
– DISPLAY/KEY CONTROL Section –........................ 17
6-6. Block Diagram – POWER SUPPLY Section – ............. 18
6-7. Note for Printed Wiring Boards
and Schematic Diagrams ................................................ 19
6-8. Schematic Diagram
– DIGITAL (1/5)/V3-OPT Boards – ............................. 21
6-9. Schematic Diagram – DIGITAL Board (2/5) –............. 22
6-10. Schematic Diagram – DIGITAL Board (3/5) –............. 23
6-11. Schematic Diagram – DIGITAL Board (4/5) –............. 24
6-12. Schematic Diagram – DIGITAL Board (5/5) –............. 25
6-13. Printed Wiring Board
– DIGITAL Board (Component Side) – ......................... 26
6-14. Printed Wiring Boards
– DIGITAL (Conductor Side)/V3-OPT Boards – .......... 27
6-15. Printed Wiring Board – VIDEO Board –....................... 28
6-16. Schematic Diagram – VIDEO Board – ......................... 29
6-17. Printed Wiring Boards
– S-VIDEO/VIDEO 3/VIDEO.AU Boards – ................. 30
6-18. Schematic Diagram
– S-VIDEO/VIDEO 3/VIDEO.AU Boards – ................. 31
6-19. Printed Wiring Board – UP CONVERT Board – .......... 32
6-20. Schematic Diagram – UP CONVERT Board –............. 33
6-21. Printed Wiring Board – MAIN Board – ........................ 34
6-22. Schematic Diagram – MAIN Board (1/3) – .................. 35
6-23. Schematic Diagram – MAIN Board (2/3) – .................. 36
6-24. Schematic Diagram – MAIN Board (3/3) – .................. 37
6-25. Printed Wiring Boards – BIAS/MIX Boards –.............. 38
6-26. Schematic Diagram – BIAS/MIX Boards – .................. 39
6-27. Printed Wiring Boards – H.P/SP/SP-B Boards – .......... 40
6-28. Schematic Diagram – H.P/SP/SP-B Boards –............... 41
6-29. Printed Wiring Board – DISPLAY Board – .................. 42
6-30. Schematic Diagram – DISPLAY Board – ..................... 43
6-31. Printed Wiring Boards
– MUTING/POWER/SW Boards – ................................ 44
6-32. Schematic Diagram
– MUTING/POWER/SW Boards – ................................ 45
6-33. Printed Wiring Boards
– AC/DC 1/DC 2/V.SWITCH Boards – ......................... 46
6-34. Schematic Diagram
– AC/DC 1/DC 2/V.SWITCH Boards – ......................... 47
6-35. IC Pin Function Description ........................................... 58
7. EXPLODED VIEWS
7-1. Case Section .................................................................... 70
7-2. Front Panel Section-1...................................................... 71
7-3. Front Panel Section-2...................................................... 72
7-4. Chassis Section-1 ............................................................ 73
7-5. Chassis Section-2 ............................................................ 74
7-6. Chassis Section-3 ............................................................ 75
7-7. Chassis Section-4 ............................................................ 76
7-8. BIAS Board Section........................................................ 77
7-9. MAIN Board Section ...................................................... 78
7-10. Foot Section .................................................................... 79
8. ELECTRICAL PARTS LIST ............................... 80
TABLE OF CONTENTS

5
STR-DA2ES/DB1080
SECTION 1
SERVICING NOTES
•MODEL IDENTIFICATION
– Back Panel –
PART No.
Model PART No.
DA2ES : US model 4-239-175-0[]
DA2ES : Canadian model 4-239-175-1[]
DB1080 : Singapore and
Malaysia models 4-239-175-2[]
DB1080 : AEP and UK models 4-239-175-3[]
DB1080 : E model 4-239-175-4[]
DB1080 : Korean model 4-239-175-5[]
SERVICE POSITION
In checking the DIGITAL board, prepare jig (extension cable J-2501-208-A: 200 mm 21 core).
Connect jig (extension cable J-2501-208-A)
to the MAIN board (CN806, CN807) and
DIGITAL board (CN1102, CN1103).
Note: The power cord can be used unplugged from th
e
back panel though, as it is hard to do it,
it is easier to prepare other power cord and
use it as a jig.
DIGITAL board
MAIN board
power cord

6
STR-DA2ES/DB1080 SECTION 2
GENERAL This section is extracted from
instruction manual.
LOCATION OF CONTROLS
– Front Panel –
ANALOG DIRECT qh
AUDIO SPLIT 0
AUTO DEC ql
CINEMA STUDIO EX wd
Cursor buttons ( / ) ej
CUSTOMIZE r;
Digital Cinema Sound indicator 5
DIGITAL CONCERT HALL ws
DIMMER wh
DISPLAY 3
Display 7
DOOR OPEN qf
ENTER eh
EQ ek
EQUALIZER es
FM/AM wa
FM MODE rf
FUNCTION qs
INPUT MODE qd
IR receptor 2
Jog dial eg
LEVEL ef
MASTER VOLUME 9
MEMORY e;
MODE +/– qj
MULTI CH DIRECT qg
MULTI CHANNEL DECODING
indicator 8
MUTING qa
NIGHT MODE ra
NIGHT MODE indicator 4
NORMAL SURR
(;PLII/NEO:6) wg
ON SCREEN wj
PHONES jack wk
PRESET TUNING +/– w;
RDS PTY rd
(Models of area code
CEL, CEK only)
SB DEC indicator 6
SET UP ed
SLEEP rd
(Models of area code
SP, KR, E only)
SPEAKERS switch wl
SURR el
SURR BACK DECODING wf
TEST TONE rs
TUNING +/– ea
(Models of area code U, CA,
SP, KR, E only)
TUNING/PTY SELECT +/– ea
(Models of area code CEL, CEK
only)
VIDEO 3 INPUT jacks rg (16)
2CH STEREO qk
2ND ROOM rd (58)
(Models of area code U, CA
only)
?/1 (power) 1
+
–
+–
+
–
12 3456 7 8 9
q;qaqsqdqfqgqhqj
ql qkw;wawgwhwjwkwl wf wd ws
e; ea es ed ef eg
ejr;
el
ra ehekrsrg rdrf

7
STR-DA2ES/DB1080
• This set can be disassembled in the order shown below.
3-1. DISASSEMBLY FLOW
SECTION 3
DISASSEMBLY
SET
3-3. S-VIDEO BOARD, VIDEO BOARD,
UP CONVERT BOARD AND TUNER
(Page 8)
3-2. CASE (414535)
(Page 8)
3-5. DIGITAL BOARD
(Page 9)
3-6. MAIN BOARD, MIX BOARD
(Page 10)
3-4. VIDEO AU BOARD
(Page 9)

8
STR-DA2ES/DB1080
Note: Follow the disassembly procedure in the numerical order given.
3-2. CASE (414535)
3-3. S-VIDEO BOARD, VIDEO BOARD, UP CONVERT BOARD (DA2ES) AND TUNER
1 two flat head screws
1 two flat head screws
1 two flat head screws
1 two flat head screws
3 case (414535)
2
2
1 connector
(CN853)
4 S-video board,
video board and
up convert board (DA2ES)
2 wire (flat type) (15 core) (DB1080)
wire (flat type) (21 core) (DA2ES)
(CN303)
5 wire (flat type)
(15 core)
3 six screws (BV/RING)
6 three screws (BV/RING)
3 two screws (BV/RING)
(except DB1080:AEP, UK models)
7 tuner

9
STR-DA2ES/DB1080
3-4. VIDEO.AU BOARD
1 wire (flat type) (9 core) (DB1080)
wire (flat type) (15 core) (DA2ES)
(CN201)
4 video AU board
2 connector
(CN202)
3 two screws (BV/RING)
3 screw (BV/RING)
(DB1080: AEP, UK models)
3 screw (BV/RING)
(DA2ES)
3-5. DIGITAL BOARD
1 wire (flat type) (31 core)
(CN1101)
2 four connectors
(CN1106, CN1108, CN1109, CN1110)
6 five screws
(BV/RING)
8 digital board
7 two connectors
(CN1102, CN1103)
4 bracket (digital 3)
5 screw
(BVTP3
× 8)
3 screw
(BVTP3 × 8)
3 screw
(BVTP3 × 8)
Note: When installing the digital board (CN1101), connecting the wire (flat type) (31 core)
to the digital board beforehand improves the operatability.

10
STR-DA2ES/DB1080
3-6. MAIN BOARD, MIX BOARD
3 two screws
(BVTP3
× 8)
3 two screws
(BVTP3
× 8)
4 screw (BVTP3 × 8)
2 eight screws
(BV/RING)
1 three connectors
(CN801, CN803, CN805)
1 connector
(CN902)
5
6 connector (CN809)
7 twelve screws
(transistor)
6 six connectors
(CN681, CN631, CN431, CN481, CN531, CN581)
9 main board,
mix board
8 heat sink

11
STR-DA2ES/DB1080
SECTION 4
TEST MODE
TUNER FACTORY PRESET MODE
All preset contents are reset to the default setting.
Procedure:
1. While pressing the [DIMMER] and [SET UP] buttons, press
the I/1button to turn on the main power.
2. The message “TUNER FACTORY PRESET” appears and the
present contents are reset to the default values.
TUNER AM STEP CHANGE (9 kHz/10 kHz) MODE
(Except STR-DB1080: AEP and UK models)
Either the 9 kHz step or 10 kHz step can be selected for the AM
channel step.
Procedure:
1. While pressing the [PRESET TUNING +] or [TUNING +]
button, press the I/1button to turn on the main power.
2. Either the message “AM 9 kHz Step” or “AM 10 kHz Step”
appears. Select the desired step.
TUNER AUTOBETICALTUNING MODE
(STR-DB1080: AEP and UK models)
Procedure:
1. While pressing the [MEMORY] button, press the I/1button
to turn on the main power.
2. The message “Autobetical select” appears and scans and stores
all the FM and FM RDS stations in the broadcast area.
3. When done, the message “Autobetical finished” appears.
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:
1. While pressing the [MODE +] button, press the I/1button to
turn on the main power.
2. The message “S.F Initialize” appears and initialization is
performed.
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:
1. While pressing the [AUTO DEC.] and [MODE +] buttons, press
the I/1button to turn on the main power.
2. The message “MEMORY CLEARED !” appears and the
memories are reset to the default values.
MENU EXPAND FOR DEBUG MODE
Procedure:
1. Press the I/1button to turn on the main power.
2. Press two buttons of [CINEMA STUDIO EX] and [ENTER]
simultaneously.
3. The message “MENU SPECIALIZED !” appears and menu
expand turn on.
4. Press two buttons of [CINEMA STUDIO EX] and [ENTER]
simultaneously once again.
5. The message “MENU SPECIALIZED OFF” appears and menu
expand turn off.
FLUORESCENT INDICATOR TUBE PATTERN
CHECK 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:
1. While pressing the [DISPLAY] and [ENTER] buttons, press
the I/1button to turn on the main power.
2. All segments turn on at the same time.
SWAP MODE
Procedure:
1. While pressing the [DISPLAY] and [2CH ST] buttons, press
the I/1button to turn on the main power.
2. The message “SWAP MODE !” appears and swap mode turn
on.

12
STR-DA2ES/DB1080 SECTION 5
ELECTRICAL ADJUSTMENT
OSD ADJUSTMENT
Connection
Procedure:
1. Short the CN306 pin 4on the VIDEO board to the GND.
2. Connect a frequency counter to the CN306 pin 2on the
VIDEO board.
3. Press the I/1button to turn on the main power.
4. Press the [CUSTOMIZE] button.
5. Press the [>] button to display “COLOR SYSTEM”.
6. Turn the JOG DIAL to display “NTSC”.
7. Press the [>] button to display “OSD H.POSITION”.
8. Adjust the CT302 so that the frequency counter reading is
3.57954 MHz.
9. Press the [<] button to display “COLOR SYSTEM”.
10. Turn the JOG DIAL to display “PAL”.
11. Press the [>] button to display “OSD H.POSITION”.
12. Adjust the CT301 so that the frequency counter reading is
4.43361 MHz.
13. Press the I/1button to turn off the main power.
14. Connect a frequency counter to the CN306 pin 1on the
VIDEO board.
15. Press the I/1button to turn on the main power.
16. Press the [CUSTOMIZE] button.
17. Press the [>] button to display “OSD V.POSITION”.
18. Adjust the CT303 so that the frequency counter reading is 7.20
MHz.
Note: The steps 5, 6 and 9 to 12 should be performed to the models except
for the STR-DA2ES and STR-DB1080: Korean.
Adjustment and Connection Loacation:
–VIDEO BOARD (Component Side) –
VIDEO board
CN306 pin
1 or pin 2
+
–
frequency counte
r
IC306
CN306
CT303
IC305
IC304
IC310
CT302 CT301
1
4

1313
STR-DA2ES/DB1080
6-1. BLOCK DIAGRAM – TUNER/VIDEO INPUT Section –
SECTION 6
DIAGRAMS
• SIGNAL PATH
• R-CH is omitted due to same as L-CH.
: TUNER
SW3, SW4
7
9
3
5
13
V3
V2. IN
TV
LD
V1. IN
10
4
14
6
2
15
1
SW2
SW3
SW1
SW4
SW5
V1.
OUT
M.
OUT
7
9
3
5
13
V3
V2. IN
TV
LD
V1. IN
10
4
14
6
2
15
1
SW2
SW3
SW1
SW4
SW5
V1.
OUT
M.
OUT
15
13
9
11
3
5
7
1
2
14
10
4
6
ANALOG
SWITCH
SERIAL
INPUT
CONTROL
D304
D303
D851
D850
X301
17.734475MHz
X302
14.31818MHz
L. P. F.
FL301
FL303
A
(Page 17) DATA, CLK
FM
AM
8L CH
10R CH
13FM SIG OUT
14RDS-INT
15RDS-DATA
2
ST-DO
4
CE
3
ST-DI
1
CLK
7
STEREO
11
MUTE
6
TUNED
DATA LAT DATA CLK STEREO MUTE TUNED
(DB1080: AEP, UK)
TU301
TUNER UNIT
28 RDS DATA
RDS SIGNAL
RDS CLK
40 TUNER LAT
19 TUNER AUTO STOP
25 TUNER STEREO
20 TUNER MUTE
139
23 TUNER DATA IN
61
SYSTEM
CONTROLLER
IC1703
(1/7)
8YOUT
6COUT
7VOUT
4
CIN
2
YIN
3
VIN
VIDEO BUFFER
IC305
27 YOUT
26 COUT
25 VOUT
2
CIN
1
YIN
22
SCLK
23
SIN
24
CS
3
VIN
8EXS
OSD DRIVER
IC307
COMPARATOR
IC306
8
1
2
9
10 321213
6
5
46
5
(DA2ES/DB1080: Korean)
CLOCK
IC304 (3/3)
89 1110
(EXCEPT DA2ES/DB1080: Korean)
CLOCK
IC304 (1/3)
CLK
DATA
34
LAT
P/N
105
106
107
29 VIDEO SW1
30 VIDEO SW2
31 VIDEO SW3
32 VIDEO SW4
33 VSINK
SYSTEM
CONTROLLER
IC1703
(2/7)
J298 (1/2)
VIDEO 3
INPUT
VIDEO
TV/SAT IN VIDEO
DVD/LD IN VIDEO
IN VIDEO
OUT VIDEO
VIDEO 2
J305
J304
VIDEO 1
IN VIDEO
OUT VIDEO
J299
J852 (2/2)
J850 (1/2)
J850 (2/2)
J852 (1/2)
C
Y
C
Y
C
Y
C
Y
C
Y
C
Y
J751
J302
VIDEO SELECTOR
IC308
Y SWITCH
IC852
C SWITCH
IC850
B
(Page 14)
TU L OUT
FM 75Ω
COAXIAL
AM
R-CH
LAT
TUNED
STEREO
MUTE
DATA
VIDEO 3
INPUT
S-VIDEO
TV/SAT
S-VIDEO IN
DVD/LD
S-VIDEO IN
VIDEO 1
S-VIDEO IN
MONITOR
S-VIDEO OUT
MONITOR
OUT VIDEO
V1. OUT
V1. IN
V2. IN
V2. OUT
TV
LD
V3
M. OUT
SW5
SW1
SW2
SW3
SW4
BUFFER
: VIDEO IN
LEVEL SHIFT
IC310 (1/2)
SYNC SEPARATOR
IC311
SYNC SEPARATOR
IC309
VIDEO 1
S-VIDEO OUT
SW3 SW4
C
(Page 17)
LEVEL SHIFT
IC310 (2/2)
CLOCK
IC304 (2/3)
L. P. F.
L. P. F.
FL302
(EXCEPT DA2ES/DB1080: Korean)
1
CT301
OSD
CT302
OSD
V SYNC BUFFER
Q305
Y SYNC BUFFER
Q304
15
16
CT303
OSD
RY390
-2
-1
VIDEO BUFFER
Q3100 – 3102
10
13
4
15
VIDEO SYNC
SEPARATOR
IC3100
Y SYNC BUFFER
Q3103 – 3107
4
1
7
16
CLOCK
GENERATOR
IC3101
X3100
7.5795MHz
VIDEO – 5V
C SYNC BUFFER
Q3108 – 3112
(DB1080)
(DA2ES)
RELAY
DRIVE
Q390 – 394
EXD
XD
ANTENNA

1414
STR-DA2ES/DB1080
6-2. BLOCK DIAGRAM – AUDIO DSP Section –
DIGITAL
(ASSIGNABLE)
25SDO3
26SDO4
SDO3
SDO4
CONTROL
DATA CLK LAT
1415 16
CONTROL
CONTROL
43, 44, 51, 32, 31,
22 – 20, 52, 53, 56,
79, 57, 58, 67, 68
105, 50, 42, 41, 34,
69, 70, 59, 77, 78, 95,
86, 122, 114, 105, 106
7 – 10, 13 – 16,
29 – 32, 35 – 38
5 – 1, 44 – 42,
27 – 24, 21 – 18
S-RAM
IC1602
617
CS WE
8485
CSO
WEO
DATA
DEMODULATOR
LOCK
DETECT
TIMING
MICON INTERFACE
CLOCK
INPUT
CIRCUOT
IC1405
J1401
J202
AUDIO OUT
L
L
L
AUDIO IN
J298 (2/2)
L
VIDEO 2
VIDEO 1
J131
PHONO IN L
L
CD/SACD IN
J151
IN L
L
J152 (1/2)
L
L
J201
L
L
L
J171 (2/2)
R-CH
RY171
SIGNAL-END
DEFERENTIAL
CONVERTER
DIGITAL ∑
MODULATOR
SERIAL I/O
INTERFACE
CLOCK/
TIMING CONTROL RESET
/POWER CONTROL
6
DIGITAL AUDIO INTERFACE RECEIVER
IC1408
CLK LAT DATA
CLK LAT DATA
(Page 17)
DATA, CLK, LAT, 2ND LAT
J
(Page 15)
S MUTE
H
(Page 15)
LRCKO,
BCKO,
SCKOUT
G
(Page 15)
SDO1,
SDO2,
SDO3,
SDO4
D0 – D15 A0 – A15
D16 – D31 A0 – A15
L
R
AUDIO SELECTOR
IC171
IN
OUT
TAPE
D
(Page 15)
CD IN
B
(Page 13)
TU L OUT 25
21
23
27
19
17
4
6
2
8
7
10
9
1415 16
12
AUDIO SELECTOR
IC151
VIDEO SELECTOR
IC201
25
24
22
21
26
27
19
17
1415 16
3
4
5
6
9
14 2
7
10
11
12
36 37 38 35
47
CKSEK1
48
CKSEL1
B A
DI CE CLK DO XMODE
XMODE
3DIN0 16
DATAO
34
ERROR
15
LRCK
14
BCK
13
CKOUT
17
XSTATE
20
XMCK
22
XIN
24
AUDIO
2635
71
X1401
24.576MHz
OSC
IC1410 25
1
CLOCK SELECTOR
IC1407
D1702
D1703
HCLK
HDIN
81
HACN2
47
EEROR
82
HCS2
HDOUT2
96
2EXLOCK
79
PM2
78
BST2
80
XRST2
67
DIR ERROR ANALOG DIGITAL
121
SYSTEM MUTE
116
104103102
91 ADC:RST
37 OPT A
36 OPT B
75 DI
74 CE
73 CLK
76 DO
71 XMODE
72 CKSEL1
88
HACN1
89
XRST1
46
LRCK EN
85
HCS1
35
HDOUT1
83
GB9
84
BST1
90
PM1
7
2ND AUDIO RY
70
DATA0
69
DIR XSTATE
A
B
DI
CE
CLK
DO
XMODE
CKSEL1
SYSTEM CONTROLLER
IC1703 (3/7)
A/D CONVERTER
IC1101
15
13
LRCK
16
SYSCLK
1DOUT
LIN
6
RSTB
14
BCK
18 SDI1
15 LRCKI1
30 SDI2
PM
69
GP8
68
GP9
56
BST
36
HCS
35
HDOUT
32
HACN
2
XRST
22
KFSIO
113
AUDIO DIGITAL
SIGNAL PROCESSOR 1
IC1501
23SDO1
24SDO2
25SDO3
26SDO4
19LCKO
20BCKO
34HCLK
33HDIN
75 HCLK
74 HDIN
27 SDI1
28 SDI2
35 SDI3
39 SDI4
29 LRCKI1
38 BCKI1
76
HCS
82
HDOUT
83
HACN GP3 EXLOCK PM
141
BST
8
XRST
62
KFSIO
136120 140
64BCKO
10SCKOUT
61SDO2
60SDO1
BCKO
SCKOUT
63LRCKO
111GP7
LRCKO
SDO2
SDO1
• SIGNAL PATH
• R-CH is omitted due to same as L-CH.
: TUNER
: AUDIO IN (ANALOG)
: AUDIO IN (DIGITAL)
AB
E
(Page 15)
2CHL
TV/SAT
AUDIO IN
DVD/LD
AUDIO IN
OUT
AUDIO IN
AUDIO OUT
VIDEO 3
INPUT
AUDIO
DIGITAL OPTICAL
RECEIVER
IC1401
DIGITAL OPTICAL
RECEIVER
IC1402
DIGITAL OPTICAL
RECEIVER
IC1403
DVD/LD
OPTICAL IN
DIGITAL OPTICAL
RECEIVER
IC289
DIGITAL
(OPTICAL)
TV/SAT
OPTICAL IN
MD/DAT
OPTICAL IN
DVD/LD
COAXIAL IN
MD/DAT
OPTICAL OUT
DIGITAL OPTICAL
TRANSCEIVER
IC1404 DIGITAL SELECTOR
IC1406
BUFFER
IC1102
17 BCKI1
29 BCKI2
28 LRCKI2
59 EXLOCK
MUTING
SWITCH
Q1705
COUNTER
IC1409
MUTING
SWITCH
Q1703
MUTING
SWITCH
Q1704
MD/DAT
PHONO
EQ AMP
IC131
10 LPF
FILTER PLL
PLL LOOP
FILTER
Q1403, 1404
5DIN2
2DOUT
LEVEL SHIFT
CIRCUIT
10
CLK
12
LAT
11
DATA
CLK 2ND LAT DATA
14 IN 16
18
17
OUT
TRIM
TRIM BUFFER
IC172
ELECTRICAL
VOLUME
IC173
RELAY
DRIVE
Q171
LINE AMP
IC174
9
MCLK1
12
MCLK2
X1501
12.866MHz
144
MCLK1
139
MCLK2
X1601
13.5MHz
AUDIO DIGITAL
SIGNAL PROCESSOR 2
IC1601
EEPROM
IC1701
599
6100
SDA
SCL
EEPROM SDA
EEPROM SCL
6
2
5
1
SIGNAL
SELECTOR
IC1503
F
58
X0
57
X1
X1701
16.5MHz
(DA2ES)
2ND ROOM
OUT
VARIABLE

1515
STR-DA2ES/DB1080
6-3. BLOCK DIAGRAM – AUDIO CONTROL Section –
+
MODE CONTROL
INTERFACE
SERIAL INPUT
INTERFACE
MULT-FUNCTION
X8 OVER SAMPLING
DIGITAL FILTER
D/A
CONVERTER
LPF
AMP
LPF
AMP
LPF
AMP
LPF
AMP
MUTING
Q701
MUTING
Q601
MUTING
Q501
MUTING
Q451
MUTING
Q651
G
(Page 14)
SDO1,
SDO2,
SDO3,
SDO4
H
(Page 14)
LRCKO,
BCKO,
SCKOUT
J
(Page 14) S MUTE
TRIM
LEVEL SHIFT
CIRCUIT
CENTER
SUB WOOFER
CENTER
SURROUND BACK
MULTI CH IN 1
MULTI CH IN 2
J112
SUB WOOFER
D
(Page 14) CD IN
RELAY
DRIVE
Q815
RY805
P
(Page 17)
DATA, CLK, LAT
Q
(Page 17)
DATA, CLK, LAT
K
(Page 16)
L OUT
LEVEL SHIFT
CIRCUIT
M
(Page 16)
SL OUT
LEVEL SHIFT
CIRCUIT
J699
J449
L
R
FRONT
L
R
SURROUND
LEVEL SHIFT
CIRCUIT
L
(Page 16)
C OUT
N
(Page 16)
SB OUT
R-CH
SR-CH
RY449
RY549
RY699RY807
RELAY
DRIVE
Q826
J101
J111
45
46
47
41
40
DATA1
DATA2
DATA3
LRCK
BCK
LRCKO
BCKO
38 SCKISCKOUT
SDO1
SDO2
SDO3
SDO4
34
MDI
35
MC
36
ML
37
RST
33
MDO
ML RST MDO
14
12
10
9
VOUT1
VOUT3
VOUT5
VOUT6
2 DATA
1 BCK
16 SCK
15
ML
14
MC
13
MD
7VO L
D/A
CONVERTER
IC1202
BCKO 3 LRCK
LRCKO
SCKOUT
AUDIO SELECTOR
IC111
26 5.1L
35 5.1SL
39 5.1C
31 5.1SW
27 6.1L
36 6.1SL
40 6.1C
3 6.1SB
32 6.1SW 37COUT
24
LOUT
29SWOUT
5 D/ASB
25
34 D/ASL
6SBOUT
33SLOUT
22
DATA
21
CLK
23
LAT
38 D/AC
30 D/ASW
20 VRIN 23
OUT
25
26
TRIM
13
CLK
17
LAT
16
DATA
CLK LAT DATA CLK LAT DATA
20 VRIN 23
OUT
25
TRIM
26
TRIM
13
CLK
17
LAT
16
DATA
9VRIN 6
OUT
4
TRIM
5
TRIM
CLK LAT DATA
13
CLK
17
LAT
16
DATA
CLK LAT DATA
20 VRIN 23
25
26
OUT
TRIM
TRIM
20 VRIN 23
OUT
25
TRIM
26
TRIM
13
CLK
17
LAT
16
DATA
CLK LAT DATA
93 DA1LAT
92 DACINT
108 DA1DO
95 DACDI
94 DACCLK
119 DA2 LAT
ML
RST
MDO
MDI
MCI
120CD DIRECT
8PRE RY
SYSTEM
CONTROLLER
IC1703 (4/7)
DATA CLK LAT
• SIGNAL PATH
• R-CH is omitted due to same as L-CH.
: TUNER
: AUDIO IN (ANALOG)
MDI
MCI
FRONT L
SURROUND L
E
(Page 14) 2CHL 28 2CHL
FRONT L
SURROUND L
LINE AMP
IC1221
LINE AMP
IC1241
LINE AMP
IC1261 (1/2)
LINE AMP
IC1261 (2/2)
11
VOUT4
13
VOUT2
R-CH
R-CH
D/AL
LINE AMP
IC1281
2 (SW)
BUFFER
IC602 (2/2)
BUFFER
IC402
BUFFER
IC602 (1/2)
BUFFER
IC502
BUFFER
IC652 (2/2)
ELECTRICAL
VOLUME
IC401
AUDIO SELECTOR
IC751
ELECTRICAL
VOLUME
IC601
ELECTRICAL
VOLUME
IC501
ELECTRICAL
VOLUME
IC651
-2
-1
PRE OUT
PRE OUT
D/A CONVERTER
IC1201
MUTING
CONTROL
SWITCH
Q813
LINE AMP
IC652 (1/2)
LINE AMP
IC521
LINE AMP
IC621 (1/2)
LINE AMP
IC621 (2/2)
SUB WOOFER
CENTER
SURROUND
BACK
22
27
26 25
19
2117
23
BUFFER
IC753
LINE AMP
IC421
CONTROL
1415 16

1616
STR-DA2ES/DB1080
6-4. BLOCK DIAGRAM – POWER AMP Section –
• SIGNAL PATH
• R-CH is omitted due to same as L-CH.
: TUNER
+
+
–
–
TM501
PRE
DRIVE DRIVE
BIAS
CIRCUIT
BIAS
Q431
BOOSTER
Q402
BOOSTER
Q403
K
6
13 14 15
3
2
5
POWER AMP
IC403
POWER AMP
IC603
(Page 15) L OUT INPUT –VEOUT
+VEOUT
NF
PRE
DRIVE DRIVE
BIAS
Q631
BOOSTER
Q602
BOOSTER
Q603
L
8
11
12
9
(Page 15) C OUT INPUT –VEOUT
+VEOUT
PRE
DRIVE DRIVE
BIAS
Q681
BOOSTER
Q652
BOOSTER
Q653
N
6
3
2
(Page 15) SB OUT INPUT –VEOUT
+VEOUT
NF
NF
VCC VCC VEE
PRE
DRIVE DRIVE
BIAS
CIRCUIT
BIAS
Q531
BOOSTER
Q502
BOOSTER
Q503
M
6
13 14
3
2
5
POWER AMP
IC503
SYSTEM CONTROLLER
IC1703 (5/7)
(Page 15) SL OUT INPUT –VEOUT
+VEOUT
NF
VCC VCC
VCC VCC VEE
VEE
13 14
15
15
5
BIAS
CIRCUIT
AF POWER
SENSOR
Q434
CURRENT
DETECT
Q432, 433
AF POWER
SENSOR
Q634
CURRENT
DETECT
Q632, 633
AF POWER
SENSOR
Q684
CURRENT
DETECT
Q682, 683
AF POWER
SENSOR
Q534
CURRENT
DETECT
Q532, 533
5
1
118
2
3
6
10
REAR RY
H. P IN
PROTECTOR
SP A RY
4SP B RY
H/P RY
CENTER RY
SB RY
RELAY
DRIVE
Q823
RY806
R-CH
RELAY
DRIVE
Q808
RY448
RELAY
DRIVE
Q809
RY803
RELAY
DRIVE
Q807
RY801
D803
D802
PHONES
CENTER
SURROUND BACK
L
R
J849
+
+
–
–
TM449
–
–
+
+
R-CH
R-CH
SURROUND
L
R
LIMITER SWITCH
Q791.795
AF POWER
PROTECTOR
Q802, 803,
Q805
FRONT A
SPEAKERS
IMPEDANCE
USE 4-16Ω
–1
SPEAKERS
IMPEDANCE
USE 4-16Ω
–2
RELAY
DRIVE
Q444
RY444
L
R
+
+
–
–
TM444
R-CH
FRONT B
SPEAKERS
IMPEDANCE
USE 4-16Ω
B+
LIMITER SWITCH
Q790 B–
OVER LOAD
DETECTOR
IC803, Q804 (EXCEPT DB1080: E)

1717
STR-DA2ES/DB1080
6-5. BLOCK DIAGRAM – DISPLAY/KEY CONTROL Section –
PB/CB/B-Y
PR/CR/B-Y
PB/CB/B-Y
PR/CR/B-Y
CONTROL
Q302
C
(Page 17) SW3, SW4
SW3 SW4
J301 (1/2)
Y
Y
J301(2/2)
Y
OUTPUT
CIRCUIT
CONTROL S I/O SWITCH
IC851
O2-2 OUTPUT
CIRCUIT
INPUT
CIRCUIT
TV/SAT
CTRL S
STATUS IN
J855
VIDEO 1
CTRL S
OUT
J853
DVD/LD
CTRL S
OUT
J854
MONITOR
CTRL S
IN
J856
INH
BUFFER
Q852, 853
REMOTE
CONTROL
RECEIVER
IC1901
I/O BUFFER
Q1701
D1701
CONTROL A1 II
J303
Q810
S1904
SHIFT
REGISTER
LATCH
CIRCUIT
5 – 16, 21 – 23, 26 – 28
D1001 – 1018,
D1951
LED DRIVER
IC1002
1, 70 – 37 2 – 23
FL1001
FLUORESCENT
INDICATOR
TUBE
F1
F2
HVO25 – HVO59 HVO24 – HVO3
S1901
ON
OFF
SPEAKERS
S1902, 1903,
S1073 – 1077
S1061 – 1068
S1051 – 1058
S1091 – 1095
S1951 – 1953,
S1084 – 1087
SYSTEM CONTROLLER
IC1703 (6/7)
134
AD3
135
AD4
136
AD5
66 SIRCS
41 M STSTUS
64 MBUS DVD
65 BUS VIDEO
63 MBUS TV
112DIN
111CLK
113LAT
114CLR
62POWER
17SP A
132
AD1
133
AD2
86 A1 IN
87 A1 OUT
21
DATA
22
CLK
24
F. SW LAT
117
2ND VOL LAT
115
FUN LAT SW
39LED CR
38LED CE
31 CLB
30 STB
4DATA
2CLK
28 DIN
30 CLK
31 LAT
32 CL
14
4
15
11 10 9 6
13
12
3
5
1
2
VIDEO SELECTOR
IC303
9
11
13
5
3
1
VIDEO AMP
IC301
11 O2-1
10
13 IN1
6
O3-1
7
O3-2
4
2
IN3
OUT1
BUFFER
Q850, 851
(DA2ES)
(EXCEPT DB1080: AEP, UK)
A
(Page 13) DATA, CLK
Q
(Page 15) DATA, CLK, LAT
P
(Page 15) DATA, CLK, LAT
F
(Page 14) DATA, CLK, LAT, 2ND LAT DATA
CLK
LAT
2ND LAT
DATA
CLK
LAT
DATA
CLK
COMPONENT
VIDEO
TV/SAT IN
COMPONENT
VIDEO
DVD/LD IN
INH C B A
PB/CB/B-Y
PR/CR/B-Y
COMPONENT
VIDEO
MONITOR OUT
LEVEL SHIFT
IC1011
I / 1
• SIGNAL PATH
: VIDEO IN
(JOG DIAL)
FUNCTION
11C. JOG
12C. JOG
13F. JOG
14F. JOG
15V. JOG
16V. JOG
MASTER
VOLUME
ROTARY
ENCODER
RV1001
ROTARY
ENCODER
RV1951
ROTARY
ENCODER
RV1051
50SP B
D1901
D1902
STBY
+3.3V
STBY
+3.3V
S1901
SPEAKERS
A+B
OFF
A
B
(EXCEPT DB1080: E)
(DB1080: E)
SIRCS BUFFER
Q1702
FLOURESCENT INDICATOR TUBE DRIVER
IC1001
24
25
DIMMER
CONTROL
Q1002
MULTI
CHANNEL
DECODEING
D1019
9
10
2
1
13
12
5
4
8
3
11
6
LEVEL SHIFT
IC804
9
10
2
1
13
12
5
4
8
3
11
6
LEVEL SHIFT
IC805
CONTROL
CIRCUIT

1818
STR-DA2ES/DB1080
6-6. BLOCK DIAGRAM – POWER SUPPLY Section –
+5V
REGULATOR
Q824
+5V
+10V
REGULATOR
IC1301
TUNER +10V
+3.3V
REGULATOR
IC1302
TUNER +3.3V
+5V
REGULATOR
IC1808
A+5V
+5V
REGULATOR
IC1801
VIDEO +5V
+3.3V
REGULATOR
IC1802
+5V
REGULATOR
IC1807
+3.3V
REGULATOR
IC1806
TRX +3.3V
+2.6V
REGULATOR
IC1805
D+2.6V
D+3.3V
D1803
D909
+3.3V
REGULATOR
IC1804
+5V
REGULATOR
IC1803
STBY +5V RECT
D54 – 57
D58
D52
D53
T2
SUB POWER
TRANSFORMER
SYSTEM
CONTROLLER
IC1703
(7/7)
AC POWER
DETECT
Q54
– 5V
REGULATOR
Q902
VIDEO – 5V
F1
F2
FLUORESCENT INDICATOR TUBE
(FL1001)
+32V
+32V
REGULATOR
Q903
RECT
D912, 913
– 15V
REGULATOR
IC802
– 15V
+15V
+15V
REGULATOR
IC801
RELAY +24
B+
B–
-2
-1
8Ω
4Ω
IMPEDANCE
SELECTOR
S901
T901
MAIN POWER
TRANSFORMER
42D POWER
43V POWER
55RSTX
49SUB T. PORT
60STOP
18POWER RY
B+ SWITCH
Q1801, 1802
+7V
REGULATOR
IC1809
+7V B+ SWITCH
Q1805, 1806
B+ SWITCH
Q1803, 1804
B+ SWITCH
Q1810
STBY +3.3V
RESET SIGNAL
GENERATOR
IC1702
B+ SWITCH
Q52, 53
RECT
D903 – 906
RECT
D908
F904
F903
RECT
D914
F1
F49
VOLTAGE
SELECTOR
VS49 (1/2)
VOLTAGE
SELECTOR
VS49 (2/2)
(EXCEPT DB1080: E)
(DB1080: E)
(DB1080: E)
RELAY
DRIVE
Q51
RY1
(AC IN)
(DB1080: E) (EXCEPT DB1080: E, Korean)
(DA2ES/DB1080: E)
(EXCEPT DB1080: Korean)
AC OUTLET
CNJ1
D+5V
REGULATOR
CONTROL
SWITCH
Q904, 905
B+ SWITCH
Q1811, 1812
(DB1080: AEP, UK)
(DA2ES)
F2

19
STR-DA2ES/DB1080
6-7. NOTE FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS
Note on Printed Wiring Board:
•X: parts extracted from the component side.
•Y: parts extracted from the conductor side.
•: Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
•Indication of transistor
Caution:
Pattern face side: Partsonthe patternfacesideseenfrom
(Conductor Side) the pattern face are indicated.
Parts face side: Parts on the parts face side seen from
(Component Side) the parts face are indicated.
C
BThese are omitted. E
Q
B
These are omitted.
CE
Q
B
These are omitted.
CE
Q
Note on Schematic Diagram:
•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.
•f: internal component.
•2: nonflammable resistor.
•C: panel designation.
•A: B+ Line.
•B: B– Line.
•Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
no mark :TUNER
(): VIDEO 1
∗: Impossible to measure
•Voltages are takenwith aVOM(Inputimpedance 10 MΩ).
Voltage variations may be noted due to normal produc-
tion tolerances.
•Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal produc-
tion tolerances.
•Circled numbers refer to waveforms.
•Signal path.
F: TUNER
J: AUDIO IN (ANALOG)
c: AUDIO IN (DIGITAL)
E: VIDEO IN
•Abbreviation
CND : Canadian model
KR : Korean model
MY : Malaysia model
SP : Singapore model
Note:
The components identi-
fied by mark 0or dotted
linewith mark0are criti-
cal for safety.
Replace only with part
number specified.
Note:
Lescomposants identifiés par
une marque 0sont critiques
pour la sécurité.
Ne les remplacer que par une
pièce portant le numéro
spécifié.

20
STR-DA2ES/DB1080
•Circuit Boards Location
DC2 board SP board
S-VIDEO board
H.P board
DIGITAL boar
d
BIAS board
MUTING board
SW board
POWER board
VIDEO board
VIDEO 3 board
V3-OPT board
UP CONVERT board
(DA2ES)
SP-B board
(DB1080: E model)
AC board
VIDEO AU board
V.SWITCH board
(EXCEPT DB1080: E model)
TUNE
R
MAIN board
DISP board
DC1 board
MIX board