Sony STR-D2010 User manual

SERVICE MANUAL tei
Canadian Model
SPECIFICATIONS
Other Specifications
Amplifier section
AUDIO POWER
SPECIFICATIONS
8 ohms, 195 + 195 watts
POWER
OUTPUT
AND
TOTAL
HARMONIC
ieee
al
With
8-ohm
load,
both
channels
driven,
earn
a
tS
Dynamic
power output
from 20 ~ 20,000 Hz, rated 130 watts per Intermodulation (IM) distortion at Less than 0.008%
channel minimum RMS power, with no rated output
more
than
0.008%
total
harmonic
Frequency
|
PHONO
RIAA
+0.5
dB
. . sone response equalization curve
distortion from 250 milliwatts to rated pn eo (eee
output. 2,
DIGITAL (OPTICAL/
COAXIAL)
VIDEO 1, 2,3
Damping factor (8 ohms, at 1 KHz) | 50
Input PHONO MM 3 mV, 50 kilohms
sensitivity/ | DaT. CD, VIDEO | 200 mV 50 kilohms
inpedance | 4,2, 3 TAPE 1,2
DIGITAL (COAXIAL)| 0.5 Vp-p, +20%, 75 ohms
DIGITAL (OPTICAL); TOSLINK
DAT OUT TAPE 200 mV 10 kilohms
OUT 1, 2 VIDEO 1
SPEAKERS Accepts speakers of 8 - 16 ohns
HEADPHONES Accepts headphones of high an low
impedance
MUTING -20 dB
— continued on next page —
_ FM STEREO/FM-AM RECEIVER
rol ONY.
Output
sensitivity/
impedance

STR-D2010
Digital section
Digital filter
Parametric
equalizer
(at 44.1 KHz)
Delay time
ODS
Modulation (A/D conversion)
Demodulation (D/A conversion)
Sampling frequency
Frequency
Video section
Level +/— 10 dB, 2dB/step
16-bit liner
Dual 18-bit liner
18-bit 8-times over sampling
32 kHz, 44.1 kHz, 48 KHz
27, 37, 52, 72, 100, 140, 190, 270,
370, 520, 720 Hz
1.0, 1.4, 1.9, 2.7, 3.7, §.2, 7.2, 10, 14
kHz
ims-9.9s
+6dB
FM tuner section
Frequency range
Antenna terminals
Sensitivity at 50 dB
Usable sensitivity
S/N
Harmonic
distortion
at 1 kHz
IM distortion
Separation
Selectivity
Capture ratio
Auto tuning
threshold
Mono
Stereo
Mono
Stereo
Mono
Stereo
Frequency response
AM suppression ratio
Image response ratio
IF response ratio
Sprious response ratio
RF intermodulation at 800 KHz
Low
87.5 - 108.0 MHz
75 ohms coaxial
18.3.dBf, 45 uV (mono)
38.3 dBf, 45 pV (stereo)
11.2 dBf, 2 pV (IHF)
84 dB
78 dB
0.2%
0.4%
0.2%
0.4%
45 dB at 1 kHz
30 Hz - 15 kHz *$5 dB
65 dB at 300 kHz
1.2 dB
60 dB
80 dB
90 dB
100 dB
65 dB
30 dBf
50 dBf
High
AM tuning section
Antenna
S/N
Selectivity
Frequency range
Usable sensitivity
Harmonic distortion
Auto tuning threshold
530 - 1710 kHz (with 10 kHz interval)
531 ~ 1710 kHz (with 9 kHz interval)
Loop antenna
50 dB/m (at 1,000 kHz or 999 kHz)
54 dB (at 50 mV/m)
0.5% (50 mV/m, 400 Hz)
35 dB (9 kHz), 40 dB (10 kHz)
55 dB/m
General
Tuner section
System
Preamplifier
section
Power amplifier
section
Power consumption
AC outlets
Dimensions
Weight
Supplied accessories
Power requirements 120 V AC, 60 Hz
Two switched, total 100 watts
PLL quartz-locked digital synthesizer
system
Low-noise NF type equalizer
Pure-complimentary SEPP.
USA model: 250 watts
Canada model: 520 VA
(5 watts at standby condition)
430 x 148 x 369 mm
(17 x 5%s x 14%/e inches)
12.1 kg (26 Ib 11 02)
FM ribbon antenna (1), AM loop antenna (1)
Programmable System Commander RM-P201 (1)
External antenna connector (1)
Sony Batteries SUM-3 (NS) (2)
Design and specifications subject to change without notice.

| STR-D2010
TABLE OF CONTENTS
perform the following 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 0.5mA (500 microampers). 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 instru-
ments.
NV
A battery-operated AC milliammeter. The Data
Precision 245 digital multimeter is suitable for
this job.
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK A OR DOTTED
LINE WITH MARK A 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 PUB-
LISHED BY SONY.
means of a VOM or battery-operated AC volt-
meter. 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 2V AC range are
suitable. (See Fig. A)
To Exposed Metal
Parts on Set
|
AC
voltmeter
(0.75'V)
0.15uF = S1.5k0
eo
= Earth Ground
Fig. A. Using an AC voltmeter to check AC leakage.
ATTENTION AU COMPOSANT AYANT RAPPORT
A LA SECURITE!
LES
COMPOSANTS
IDENTIFIES
PAR
UNE
MARQUE
(A,
SUR
LES
DIAGRAMMES
SCHEMATIQUES
ET
LA
LISTE
DES
PIECES
SONT
CRITIQUES
POUR
LA
SECURITE
DE
FONCTIONNEMENT.
NE
REMPLACER
CES
CON-
POSANTS
QUE
PAR
DES
PIECES
SONY
DONT
LES
NUMEROS
SONT
DONNES
DANS
CE
MANUEL
OU
DANS
LES
SUPPLEMENTS
PUBLIES
PAR
SONY.
Section Title Page Section Title Page
1. GENERAL 3-4. Schematic Diagram
Tek MOVELVIOW. a ob. beoclnhet dalled Region ay wh en aaa’ 4 —Pre, Main Amp/Power Section— ............ 25
1-2. Parts Identification ....... 6... cece cece eee eee 5 3-5. Printed Wiring Board
1-3 -‘Basic Controls: os sae avs edith nda teeie heed Paes 7 —Digital Section 2.0.6... cece cece cere ees 28
1-4. Receiving Radio Broadcast Programs............ 7 3-6. Schematic Diagram
1-5. Listening to Other Program Sources ............ 10 —Digital Section— ........ 0. ccc cence ences 31
1-6. Enjoying Digital Sound Effects ..............-. 10 3-7. Schematic Diagram
1-7. Using the Surround Effects ...............-0055 11 —Display Section—....-.. 0... ccc eee es 34
1-8. Using the Parametric Equalizer ............-... 12 3-8. Printed Wiring Board
1-9.
Using
the
Digital
Dynamic
Sound
..............
13
—Display
Section—...
1.2.0...
cee
eee
eee
tens
37
1-10. Recommended Combinations of the Digital 3-9. Printed Wiring Boards
Sound
Effects
.......-ccescee
cece
reenter
eeeeane
14
—Tuner
Section—
........
cece
eee
eens
41
3-10. Schematic Diagram
2. ELECTRICAL ADJUSTMENTS.................... 15 =Tuner Section cee sca sc anedieasadender bese’ 43
3-11. Explanation of IC411 (wPD78C14) .............. 45
3. DIAGRAMS
3-1. Block Diagram.......... eee eee e eee ees 17 4. EXPLODED VIEWS
3-2. Circuit Boards Location ............: sees eens 19 4-1. Front Panel Assembly ........-....0ee eevee es 47
3-3. Printed Wiriwg Boards 4-2. Chassis Assembly............ 0000s eee eee 48
—Pre, Main Amp/Power Section— ............ 21
5. ELECTRICAL PARTS LIST .............--....05- 49
SAFETY CHECK-OUT
After correcting the original service problem, 3. Measuring the voltage drop across a resistor by

STR-D2010 |
SECTION 1
GENERAL
1-1. OVERVIEW
The STR-D2010 is a FM stereo/FM-AM receiver with a built-in digital signal processor. You can enjoy various audio and
video program sources with this unit.
Digital surround processor.’
The STR-D2010 incorporates five types of surround effect
and you can adjust reverberation/initial delay time and
surround level to maximize each effect for your room.
¢ DU [poueysunrouns] * - reproduces the specially encoded
sound on Dolby surround video programs.
e Hall surround -- provides reverberation such as that
produced in a large concert hall.
e Live surround -- provides reflected sounds such as those
produced at live performance.
¢ Stadium surround -- gives the feeling of sound heard ina
large stadium.
e Simulated surround -- gives width and depth to the
monaural sound of old movies, etc.
* Manufactured under license from Dolby Laboratories Licensing
Corporation. Additionally licensed under one or more of the
following patents: U.S. numbers 3,632,886, 3,746,792, and
3,959,590; Canadian numbers 1,004,603 and 1,037,877.
“DOLBY” and the double-D symbol 00 are trademarks of Dolby
Laboratories Licensing Corporation.
Digital parametric equalizer 2= °° *’
e You can enjoy program sources with appropriate
equalization curve by controlling the level of the desired 3
frequency bands.
e You can store the equalization curves you created and
recall them very quickly.
e EQ Link system allows you to tune in a preset station and
immediately enjoy the sound with the stored equalization
curve.
Digital Dynamic Sound ***:
e You can enjoy dynamic sound even at small output levels.
TVNVCR control center: - 528s"
e You can control up to three VCRs or video disc players
and a monitor TV with this unit.
e You can enjoy TV or CATV programs with FM simulcast
sounds.
e You can add sounds from various-audio program sources
to video tapes during editing.
Quartz-locked digital synthesizer tuner
e You can store up to 30 radio broadcast stations in the unit.
e Index Tuning system allows you to categorize the stations
by kinds of music, etc. and tune in a station quickly.
High-power ampmneny with a oe DIA’
converter: 0). #
e The built-in D/A converter allows you to directly connect
digital audio equipment with optical/coaxial digital outputs.
¢ Independent 2-channel amplifier is built-in for the rear
surround speakers.
¢ The amplifiers in this unit output 195 + 195 watts for the
front speakers and 15 + 15 watts for the rear speakers at
dynamic power output.
Progeammeable, System commander oe
P201.:
ss
oe
‘
e The supplied remote commander can “learn” the various
functions of other infrared type remote commanders.

1-2. PARTS IDENTIFICATION
PRESET EQ LINK (ON/OFF) button )
EQUALIZER MODE Selectors
EQUALIZER function buttons
(ON/OFF, PEAK HOLD)
Display
window
|
|
|
|
| |
DISPLAY/DEMO (RTAVEQ) button
SURROUND
(ON/OFF)
button
—
|
|
EQ (equalizer) MEMORY buttons
MEMORY button
Numeric buttons
( EQ PGM SET (equalizer program set) button
DIRECT TUNING button
EQUALIZER setting buttons (BAND, SLOPE)
|
| f SHIFT button
(SET, WRITE)
SYSTEM POWER button
Remote control sensor
VOLUME controi knob
SPEAKERS Selectors
HEADPHONES jack
TAPE 2 MONITOR button and indicator
Digital input selector
EDIT buttons (VIDEO, AUDIO)
SAMPLING FREQUENCY indicators il |
| |
|
i
SURROUND MODE Selectors
ODS (Digital Dynamic Sound) button and indicator
MUTING button and indicator
BALANCE control
VIDEO 3 INPUT jacks
CURSOR buttons
t
TT CURSOR MODE buttons and indicators
i
WW... _—_-_-—-_ _——TUNER function buttons (INDEX SELECT, FM MODE, FM/AM)
PRESET TUNING buttons
Function selectors
INDEX TUNING buttons
OTOZG-uLS

Programmable System Commander RM-P201 (supplied)
OTOcGa-uls
(1) LEARN indicator [1] POWER button
The RM-P201 can “team” various functions of other remote commanders which use infrared rays. “ Tums on/off the receiver.
When the mode selector is set to SONY STD (Sony Standard), buttons on the RM-P201 can be used to perform the functions (2] Mode selector Me
below. SONY STD : To operate the commander on Sony 12} DECK and VTR selectors
standard. DECKA,B : Selects cassette deck A or B.
USER STO : To use the learned functions. VTR 1.2.3: Selects VCR 1,20r3.
LEARN : To learn other functions. 1: Betamax VCRs
2: 8mmVCRs
(3) TVand VTR POWER buttons 3: VHS VCRs
TV: Turns on/off the TV.
VTR: Tums on/oft the VCR. 13] PHONO buttons
START : Starts record play.
STOP: Stops record play.
(@ co player operation buttons
Ld : Play
a : Stop 14] TV operation buttons
4 RPL. AMS (Automatic Music Sensor) TV/VIDEO : Selects the input signal to the TV set. either
PGM : Program play a TV broadcast or VCR programs.
SHUFFLE : Shuffle play
CONTINUE : Continuous play
VOL (volume) +/- buttons
CH (channel) +~ buttons
DISC SKIP : Disc skip
115} FUNCTION selectors
(5) TAPE deck operation buttons
«#4: Reverse fast winding 16) SURROUND buttons
: Reverse play ON/OFF : Turns on/off the surround function.
: Forward play MODE: Selects the surround mode.
: Forward fast winding
: Stop 17] DBFB/DDS ON/OFF button
: Pause Turns orvotf the ODS (Digital Dynamic Sound).
: Recording (While you press @. REV for reverse
recording or FWD for forward recording.) [18] VOL (volume) contro! buttons
(8) VTR operation buttons (19] MUTING button
' “~< : Rewind :
> : Play (20) TUNER operation buttons
>> : Fast forward INDEX +- —: Selects a nexVprevious preset station
| az : Stop under the same index.
(e)) u : Pause SELECT : Index select button
| e : Recording buttons (Press both buttons for PRESET +~- : Selects a higherfower preset number,
recording.) EQ LINK : Tums orvoft the EQ link.
ANT TV/VTR : Selects the output signal from the antenna
terminal from the VCR. either TV or VCR. Notes
CH +~ : Channel select buttons «When the CONTROL S OUT connector is connected to the
CONTROL S IN connector of each equipment. you can
EQUALIZER operation buttons control the connected equipment using this remote
ON/OFF : Turns on/off the equalizer. commander.
MODE: Selects the equalizer mode (A to G).
BAND _ : Selects the frequency band.
(8) CURSOR MODE operation buttons
{3] RESET button
Press this button and operate again if the equipment works
incorrectly.
PROGRAM CLEAR button

1-3. BASIC CONTROLS
-—
Real Time Analyzer
VOLUME
MUTING
To adjust the output level
Turn the VOLUME control knob.
VOLUME
To increase
To reduce the sound temporarily to alow level (-20dB
attenuation)
Press MUTING. Press again to restore the previous sound
level.
To change the relative output level of the right and left
speakers
Turn the BALANCE control to correct stereo imaging when the
speaker position is not symmetrical.
: Speaker Selection —°—2+.0.55 =
Press SPEAKERS A to select the speaker system connected to
SPEAKERS A terminals.
Press SPEAKERS B to select the speaker system connected
to SPEAKERS B terminals.
Press SPEAKERS A and Bto select the both.
Select SPEAKERS A to listen to the surround sound with both
front and rear surround speakers, When SPEAKERS B is
selected, rear surround speakers will not activate.
The signal from the PRE OUT jack is output regardless of the
speaker selection.
‘SPEAKERS.
oo
The real time analyzer displays audio output levels of each
frequency segment. To check the peak levels, press PEAK
HOLD.
To change the display to the parametric equalizer or the
demonstration mode, press RTAVEQ until the desired display
appears.
OISPLAY/DEMO
1-4. RECEIVING RADIO BROADCAST PROGRAMS
Select TUNER.
_... . TUNING
Press TUNING DIRECT.
Enter the frequency of the desired station.
Example t: FM 102.50 MHz Exampte 2: AM 1350 kHz
oy
rts
5 Adjust the volume.
es
Tuning intervals for direct tuning
FM: 50 kHz interval
AM: 10 kHz interval (changeable to the 9 KHz interval)
Changing the AM tuning interval
The AM tuning interval is preset to 10 kHz. To use the
receiver where the frequency allocation system is based on
the 9 kHz interval, make the following adjustments:
1 Turnonthe power and tune in any AM station.
2 Press SYSTEM POWER to turn off the receiver.
3 While pressing PRESET TUNING +, press SYSTEM
POWER again to turn on the receiver.
Resetting the AM tuning interval
Follow the procedure for changing the AM tuning interval.
Caution
When the interval is changed, all preset stations which you
have stored will be erased. After changing the interval, be
sure to newly preset stations. (See “Presetting Stations” on
page 8)
When the entered number is not In the receivable frequency range
The entered digits blink in the frequency display area. and reception
does not take place.
{f this condition occurs, press TUNING DIRECT again, and enter the
correct frequency (the trequency range of the recever is 87.50 to 08.0
MHz for FM, and 530 to 1710 kHz tor AM)
Correcting the entered frequency
Repeat Steps 3 to 4 of direct tuning.
For entering AM frequencies, you need not enter the last "0".
However. if you have changed the AM tuning interval to 9 kHz, enter all
the digits.
if you enter a frequency nat covered by the tuning interval
The entered value is automatically rounded up or down to the closest
value covered by the tuning interval.
When an FM stereo program is noisy
When the unit receives an FM stereo program, the STEREO indicator
goes on in the display window. If the stereo program is noisy, press FM.
MODE to change the mode aver to MONO. This eliminates the stereo
ettect, but the noise wilt be greatly reduced. To retum te the stereo
mode. press FM MODE again,
otToza-als

Auto Tuning: ° ~ ae: 7 Presetting Stations.
2 3
[amenn 3 5
A total of 30 FM/AM stations (10 stations on each
memory page) can be stored in the unit's memory in
Select TUNER. any desired sequence.
Select TUNER.
Select FM or AM.
Tune in the desired station by
direct tuning or auto tuning
Select CURSOR MODE TUNING.
Press
MEMORY.
fueacae]
MEMORY indicator appears fora
a few seconds. : :
Press SHIFT to select the memory
4 page (A, B, or C).
The memory pages can be classified -
q_according to the station band, etc.
Press a cursor to start auto tuning.
To tune in lower To tune in higher
frequencies frequencies
is ee : E
7 Press the desired numeric button
4 (1 to 0) to preset the station.
Selecting the signal levet of the station to be tuned in | Repeat above steps for presetting other desired stations.
You can setect “high” or “low” as the FM tuning level by
pressing cursors. lf the MEMORY indicator goes oft before pressing the
Press <3 to select high; HIGH disptayed in the display numeric button
window. Press MEMORY again to display the indicator.
Press % to select low: HIGH display disappears.
HIGH: The frequencies of strong signal stations anty will be Replacing a preset station
tuned in. Preset another station on the number of the station to be
LOW: The frequencies of all recervable stations will be tepiaced. The previously preset station will be erased.
tuned in.
Tuning in Preset Stations - Preset Tuning
Scanning preset stations
SYSTEM POWER > ON
Tuning in preset stations directly |
SYSTEM POWER — ON 3
a A 4 Press SHIFT to select nis
aged the memory page (A, B, or C).
PRESET TUNING.
ee
ie Select the desired preset station (-T+)
Re.
by pressing PRESET TUNING 4/-. by
* Each time you press PRESET TUNING ¢ (or -), a. preset i | ~ O-)
station of next higher (or tower) preset number is tuned in. e ‘i
« If you keep pressing + (or -), preset stations are oa desired numeric button
successively tuned in the increasing (or decreasing) order. g (1 ta 0).
Release the button when the desired station is tunedin. . _-
+ Scanning of the preset stations takes place cycfically from
AM to FM. and vice versa. s
OTO0za-u1S

Labelling
the
Preset
Statians
—Index
Input
Index.
Tuning:
sEnee
ek
SYSTEM POWER — ON 2
You can organize preset stations under Index Names
which you create (up to 4 characters) to categorize the
stations by the types of music, for exampte, ROCK,
JAZZ. atc.
Select TUNER.
Tune in the desired preset
station.
Press CURSOR MODE INDEX.
To select aletter To change
or a number the position
Se
Create
a
index
Name.
[>
é]
& 8
q@ Press MEMORY.
Hey The MEMORY indicator
fee appears for a few seconds.
Press SHIFT to select the
memory page (A. B, or C}.
sre ttc hee te ee net
INDEX SELECT
Select the Index Name by
pressing INDEX SELECT.
Select the desired station
by pressing INDEX
TUNING +-.
When you want to tune in a station memorized under a
different Index Name, press INDEX SELECT as many
times until the desired Index Name appears.
Repeat steps 2 to 7 to label other stations.
Pressing CURSOR MODE INDEX twice make ail 4 digits af the index
flash.
Then. all previously mamanzed indexes can be called up by pressing A
; cog
Press the desired numeric
button (1 to 0).
‘or (7. This allows you lo change a part of previously memorized index to
create anoiher new one To return to the previous mode. press CURSOR
MODE INDEX agam.
A station can be stored under only one Index Name
If you store an already categonzed station under any other Index Name.
onty the last selected category will be valid.
Receiving FM Simulcast TV Programs: 3
Monitor TV
SYSTEM POWER ~ ON
MONITOR
VIDEO OUT
oj ss)
ee eee —
peices |
00 SSeS soaesoocS
Select VIDEO 1, VIDEO
2/CDV, or VIDEO 3.
Tum on the TV.
Select TUNER and tune in the FM simulcast
program on the receiver.
Adjust the volume.
OTOca-dLS

1-5. LISTENING TO OTHER PROGRAM SOURCES
Cor |3
4 Select the program source.
When you select DIGITAL, press the digital input selector to
select 1-OPTICAL or 2-COAXIAL. When the digital audio
signal is input, SAMPLING FREQUENCY indicator will glow
according to its sampling frequency (ex. 44. 1 kHz for CD,
M atc.).
& Turn on the TV when you selected video program
3} sources.
Adjust the valume.
1-6. ENJOYING DIGITAL SOUND EFFECTS
The STR-02010 incorporates a digital signal processor which
consists of digital parametric equalizer, digital surround
processor, and the DDS (Digital Dynamic Sound).
The parametric equalizer controls the output level of the
desired frequencies, and the sorround processor
electronically reproduces a natural sound field for various
kinds of music. The DOS system provides powerful sound
even at small output levels.
By using these three digital sound effects, you can create a
optimum sound quality and sound atmosphere in your room.
Pine eelacelte mittee ite@ ta can
The STR-D2010 has the demonstration mode which
| illustrates the effects of each digital sound effect and other
main features, such as Index Tuning. Before controlling
sound effects, experience the difference with the actual
sound and displays on the unit.
Play back a program source.
such as a CD.
Press DISPLAY/DEMO until DISPLAY/DEMO,
“DEMO” appears on the display.
The demonstration mode will
illustrate sound effects, etc. in the
following order (see the next page):
OTOZG-YHLS

; Digitak Parametric Equalizers ©
BAND 1-3
Adjusts the level
of each frequency
band.
| the frequencies to
FREQ
Moves the
frequency of
BAND 1.
PILE
Displays the
combination of all
three equalization
curves and moves
show the change
of total equlization
curve.
SLOPE
Changes the
slape of
equalization
curve.
CALL
Recalls stored
equalization
curves (A to G).
Digital Surround Processor
Displays each
surround mode
and illustrates the
change of reverb-
eration time and
surround level.
Turns on and off
the ODS.
Displays RTA
(Real Time
Analyzer), PEAK
meter, and
equalization
Demonstrates
creating Index
Name and Index
Tuning. -
To stop the demonstration mode
Press any button other than SPEAKERS.
1-7. USING THE SURROUND EFFECTS
Whatis a effect?
The sound heard in places such as a concert hail or a
movie theather consists of a direct sound, a reflected sound
and a reverberative sound which reach you later than a
direct one. The acoustics of a room affect the way these
three sounds are heard. We can estimate the size or type of
a hall by listening to these three kind of sounds even with
our eyes closed.
Reverberative sound
Reflected sound
a ! 1
TEES direct souna LF?
ann
man
y
‘Selecting: Sorround Modes: -
HALL
Provides the reverberation effect that is produced in a
concert hall. This mode is most appropriate for programs
with little reverberation, such as studio recordings.
You can adjust the reverberation time and surround levet.
STADIUM
Provides the effect of sound heard in a stadium. This mode
is also appropriate for programs with little reverberation,
such as studio recordings.
You can adjust the reverberation time and surround level.
LIVE
Provides the effect just of a real tive performance. This
mode is suitable for enjoying programs with a lot of
reverberation, or a movie without Dolby surround
Processing.
You can adjust the initial delay time and surround level.
SIMULATED
Gives a simulated stereo effect to monaural program
source. You can adjust the initial delay time and surround
level.
DOLBY
Decodes movie programs processed with the Dolby
surround etfect. It expands the sound to create a sound as
heard in a movie theather. You can adjust the intial delay
time and surround level.
The STR-D2010 reproduces the retlected Sound and the
reverberative sound using its digital signa! processor and
allows you to design a variety of acoustic sound fields in
your own room,
Transitiors of the sound#:+2:
Level t Direct Reflected Reverberative
sound sounds sound
—_—_—_
A
Front speakers
OTOZQ-YLS

Listening
ta
the
Surround
Sound
‘ :
ae.
Select SPEAKERS A to listen to the surround sound with
both front and rear surround speakers. When SPEAKERS B
is selected, rear surround speakers will not activate.
SYSTEM POWER — ON 2
= = SURROUND MODE
Fe:
a4 Select the desired surround mode. by
Press CURSOR MODE
SURROUND.
8 Adjust the reverberatior/initial delay
time.
Adjust the surround level.
“Both the reverberatiorvinitial delay time
and surround level are stored in the
surround mode each time after
tad adjustment.
Ta turn off the surround effect
Press SURROUND ON/OFF. The normal sound without
surround effect will resume.
Note
Surround functian and parametric equatizer do not have any effect
‘on the program source connected to the TAPE 2 MONITOR.
About the input balance control
When selecting the Dolby surround mode, adjust the
input balance as follows:
Press CURSOR MODE
SURROUND until “INPUT
BALANCE” appears on the
display.
Adjust the input balance so that the
audio level of the surround speaker [
ig minimized during the scene of
conversation (where the sound is
monaural).
Although the balalnce changes each
time you press a cursor button, the
indicator moves one space for every
fourteen to fifteen times the button is
pressed.
1-8. USING THE PARAMETRIC EQUALIZER
Creating an Equalization Curve-
Seven equalization curves are preset at the factory for typical applications (see page 32).
lf you want to enjoy music with different equalization curves, follow these steps to create new equalization
curves.
(mame) 4 2
Press CURSOR MODE
EQUALIZER. If only one band
number appears, press the button
again,
Select a frequency band. The
selected number blinks. xo}
7 Although you can select any
4 frequency in the display to any of
three bands, it is recommended to
use each band as follows for
4 easier operation.
[ewo] FREQUENCY |
[2 | Forintermediate requences |
[3 | Forrigherrequencies |
Create the equalization curve.
To adjust To adjust To adjust
the level the frequency the slope
Ene eee |
Repeat steps 2 and 3 for other frequency bands
until you obtain the desired equalization curve.
To restore the real time analyzer display, press
RTAVEQ.
To turn off the parametric equalizer effect
Press EQUALIZER ON/OFF. The normal sound without the
parametric equalizer will resume.
To check the equalization curve of each
frequency band
1 Press CURSOR MODE EQUALIZER until only one band
number is displayed.
2 Select the desired frequency band by pressing BAND.
OTOZG-uLs

Storing an Equalization Curve Assigning an Equalization Mode to Preset:
Stations — EG Link:
You can store up to seven equalization curves that
you have created into the memory and recall them
with the EQUALIZER MODE buttons.
SYSTEM POWER -— ON
You can assign a stored equlization curve to the
desired preset stations.
[sme] 5 7 3
Press SET. The MEMORY
indicator will appear for a few
seconds.
EQUALIZER WOOE
Select the desired mode (A to G)
under which you want to store the .
§ equalization curve. - wh
Press WRITE.
To listen to a music with a stored equalization curve
Select the desired equalization mode. If you have not stored
a curve under that mode, the factory-preset curve will be
recalled.
When you store a new equalization curve
The factory-preset equalization curve for the same mode
will be erased.
Note
Parametric equalizer and surround function da not have any effect
‘on the program surce connected to the TAPE 2 MONITOR.
Tune in the desired station (refer to pages 19 - 22
for the operation).
Press EQ PGM SET.
Sees 25 t S e s
Fel Select the equalizer mode-which TeLAT
you want to assign to the selected
station, : by
q Press MEMORY. The MEMORY eR
indicator will appear for a few
seconds.
4 Press SHIFT to select the memory
page (A, B, or C).
Press the desired numeric button
(1 to 0).
To listen to the preset station with the stored equalizer
mode.
Press PREET EQ LINK ON/OFF to turn on the EQ Link
function (the indicator will appear). To turn off the function,
press PRESET EQ LINK ON/OFF again. Aiways turn off
the EQ Link function before selecting other program
sources from TUNER function.
1-9. USING THE DIGITAL DYNAMIC SOUND
The DDS (Digital Dynamic Sound) system increases the average output level of the program source while
keeping its maximum peak output level.
Since the DDS makes a powerful sound without increasing the maximum output level, you can enjoy dynamic
sound even at small output levels.
Output
level Output level
aN
Average
output
Average level
output Hl
level |
> >
Time Time
Without DDS With DDS
Turning on the DDS effect:
Press DDS. Press the button again to resume normal sound
without DDS. —
ai
Dos.
Note
The DDS will not have any effect when used in Dolby
surrond mode.
OTOca-uls

1-10. RECOMMENDED COMBINATIONS OF THE DIGITAL SOUND EFFECTS
Surround function r il
"re Teonouna Parametric
Application’ Reverberatory | DUTOU equalizer
: - level 1 DDS Effects
Situation Mode _|initial delay, (tactory preset
(number of mode)
ume: bar dispiays)
When listening to Provides the atmosphere of a large
orchestral music. LIVE: some - 7 OFF concent hail.
| Ebina tines eae
When listening to Reproduces music with the sott
instrumenta! solo or HALL 19s 15 OFF OFF reverberation heard in a medium-size
chamber music. concert hall. _4
When listening to Gives the atmosphere of a live concert
rock or pops music. STADIUM 33s ie ¢ ON lo program sources recorded in a studio
When listening to Reproduces the powerful bass sound
disco music. * OFF ~ 7 Ss ON which is heard in discos.
For background .-- Gives a light and bright feeling to
music HALL 18s 2 OFF program sources.
When listening to Gives a powerful feeling even at small
12 E ON
Program sources at © HALL 1.65 output levels.
small output levels. A |
When enjeying Dolby Reproduces the iuli effects of Dolby
surround video DOLBY 20 ms 14 OFF OFF Sufround sound as heard in a movie
programs. theater.
When enjoying Dolby Reproduces the etiects of Doty
surround video . ‘surround only with the front speakers.
programs without LIVE 28 ms 18 B OFF
rear surround
speakers. |
When enjoying Tt Gives width and depth to the monaural
monaural video SIMULATED 28 ms 1S OFF OFF sound of oid movies, etc.
‘programs. ~~
When recording a Creates powerful sound with reinforced
tape for a headphone bass and trebie.
stereo such as a OFF > a C a Use cassette deck connected to the
Walkman*. TAPE 2 jacks
* Walkman is @ trademark of Sony Corporation
To recall factory preset equalizer modes
you created new equalization curves and stored them in the unil,
proceed to recall factory preset ones in the following way.
Select CURSOR MODE SURROUND.
Press SYSTEM POWER to turn oft the unit
While pressing the SURROUND MODE 4, Press SYSTEM
POWER again to turn on the unit.
Surround settings also reset to the factory preset ones.
wn
oTOca-uLS

STR-D2010
SECTION 2
ELECTRICAL ADJUSTMENTS
FM SECTION
e FM Discriminator (NULL) Adjustment
Setting:
FM RF stereo signal
generator
Carrier frequency : 98MHz
Output level: 60dBu
Modulation : 1kHz
FM ANTENNA 3000
75kHz
dev.
terminal
(100%)
VOM
(DC
range)
TP1
NULL terminal
=
Procedure :
1.
2s
Tune the set to 983MHz.
Adjust
T21
and
T22
(AV1010
only)
for
0V
reading
on
the
VOM.
Note
:
FM
Tuning
Level
adjustment
should
be
made
after
FM discriminator adjustment.
e
FM
Stereo
Operation
Level
Adjustment
Setting:
FM RF stereo signal
generator
Carrier frequency : 98MHz
Output level: 25dBu
Modulation
:
1kHz
FM
ANTENNA
3000.
75kHz
dev.
terminal
(100%)
Procedure:
1. Tune the set to 983MHz.
2.
Adjust
RV24
so
that
the
STEREO
LED
goes
on.
Note on Ceramic Filter (CF1, 2 and 3) Replacement.
This set employs two ceramic filters (CF1, 2 and 3) which
should have the same color marking to identify their center
frequency. Therefore FM IF offset adjustment by D322, D325
mounted is necessary to match the center frequency of the
ceramic filters used with FM intermediate frequency.
color marking
lA
(CFI, 2 and 3)
eFM Stereo Separation Adjustment
Setting :
FM RF stereo
signal
generator
FM ANTENNA 3000. REC OUT
terminal
Carrier frequency : 98MHz
Output level: 60dBu
Modulation :
Audio (1kHz): 33.75kHz dev. (45%)
Pilot (19kHz): 7.5kHz dev. (10%)
Sub-channel (38kHz): 33.75kHz dev. (45%)
Procedure :
Tune the set to 98MHz.
FM stereo
signal generator
output channel
VTVM VTVM
connection reading (dB)
®
Adjust RV21 for
minimum reading.
Adjust RV21 for
minimum reading.
L-CH Stereo separation: @-®
R-CH Stereo separation: O-O
The separations of both channels should be equal.
©.: Mounted
xX : not Mounted
FM intermediate
4 frequency
Color |Center frequency||IF—50k|IF+50k (MHz)
(D322))(D325)
Ceramic filter Mount
10.750
10.700
10.650

STR-D2010 |
e Auto Stop Level Adjustment
Setting :
FM RF stereo
signal
generator VIVM
FM ANTENNA 3000,
terminal
REC OUT
Carrier frequency : 98MHz
Output level: 40dBu or 45dBy
Procedure:
1. Turn the High/Low select switch to High.
2. Adjust RV25 so that the TUNED LED goes on.
AM SECTION
¢ AM Meter Adjustment
Setting :
‘AM RF AM LOOP ANTENNA
signal generator
Put the lead-wire (
antenna close to
Wt the set. LA =|
(ES JL
AM antenna
30% amplitude
terminal
modulation by
400Hz signal
Procedure:
1. Tune the set to 1,050kHz.
2. Adjust the RV22 so that the TUNED LED goes on.
Adjustment Location: tuner board
FM
DISCRIMINATOR
ADJ
pene Mi noon
T22, T21, TPd
RV21
FM STEREO
SEPARATION
ADJ
RV22 RV24 RV25
AM
TUNING
FM
TUNING
AUTO
STOP
LEVEL
ADJ
LEVEL
ADJ
LEVEL
ADJ
AMP SECTION
DC Bias Adjustment
@ Perform this adjustment after replacement of power amp
or drive circuit transistors.
Setting :
VOLUME: 0
SPEAKERS: OFF (no load)
Procedures :
1. Connect the digital voltmeter to Bias Test Point (TP-701
@, @ L-CH, TP-701 ©, © R-CH)
2. Increase the AC power voltage gradually to 120V confir-
ming that the voltmeter will not indicate an abnormal
value.
3. Confirm that the display is normal.
4. Adjust RT701 (L-ch) or RT751 (R-ch) so that the reading
on the voltmeter becomes 0.1mV within 30 seconds after
the power turned on.
Note :It is normal that the voltage will increase as time
passes.
5. Turn the power off and remove the digital voltmeter.
Adjustment Location: main board

SECTION 3
DIAGRAMS
3-1. BLOCK DIAGRAM
ia
c——
z
|
+
(NuLE
pal
sa
C2
AM/FM
MPX
01,2,3,4
x501
18.432MHz
1504
1605
DIGITAL
1/0
D/A
CONVERTER
CONTROL
FM
TUNING
DIGITAL
XOUT
XIN
MCK
—
LRCK
ERR
MCK
LRCK
LEVEL
OPTICAL
INPUT
(38448)
(7)pata
‘esos
DATALGS)
(8)oata
L.our
Q)
ASTOP)-—
SELECT
oO
Co
STEREO
EMP
KMODE
WCK
i28FS
BCK
FSI
FS2
ack
FILTER
<<
Bet
R.
OUT
(6)
LRCK
(1?)
a
SOATA
CLK
INT
=
CE
eh
‘AM
TUNING
$
4
LEVEL
ei
Ss
}
B=
q
ed
1603
IC506
—
WOI—1/04
|2YIe
=
DIGITAL
DYNAMIC
SOUND
40
ae
|Z
#8
D-A
CONVERTER
C508
1604
CLKIN
LRCK
CLOCK
2
gia
eicteR
8C01
(7)
VOLUME
1c421,804
@)aw
(128ts)
pata(6)
Oe
ADUND
RV40I-2
AP
:
SURROU!
ie
DATAL)
A/D
CONVERTER
g
=
083)
R-Cr
é
oes
PROTECTION
[
ewPnasis
|
V
fed
.
i
ce
=
Y
b
1c601
|
b=
ee
LINE
AMP
‘|
7
4
S
D-A
CONVERTER
S
4
\
Sa
=
1602
652
3
88
:
ot
tev
is
A
5
z
¥
os
1
TO
V
CONVERTER
Ic518
a
ae
LPF
5
Se
;
Ee
e
=
fe
SE
lees
oe
ee
=
'
0503
504
2
>
T
PARAMETRIC
ft
Be
EQUALIZER
ae
=
8 ™
:
pe)
Z
Z
§
;
0601-603
|
conto
1405-1
©
g
PRE OUT
£
1603)
Conny
(rare2
w]
FUNCTION
SwiTCH
1405
Ictos
S
J
if
H
LINE
AMP
LINE
AME:
[e
J
1513
|
oFyp}_CNI
TOL
Sage
oaoe
as
I
eaoPHONES
ze
238
—_—
_
——
oo we
a.
Sc
=n
wm
veo
2
(IN
rag
oe
Lope
ff
oar)
i
ee
ir
ie
338
gee
402-1
[PHONO
in]
1¢.403,
:
d
FUNCTION
SWITCH
4403-1
(ORTON
+
SPEAKER
Tw80!
403-3
FTEPELIN]
$361
$363
4404-3
|
AUDIO
LIND
SPEAKER
0327
al
s
KEY
CONTROL_DET
VIDEO?
IN
g03=2
%
+L
DISPLAY
CONTROLLER
4
404=1
(AUDIO
L
IN)
|
[wen]
SrEAMEREE
1€303
|
|
saol-2
|
AUR
ein
402
=
OME
o7i?,
718,
O721=
723
See
G38)siRcs
IN
933
uy
©)paT_ovT]
WRIE
0767,
768
S703
SMITCH
033
icale
0724
OFF
ON
45)
VOL
UP
(+)
sia(i3
|
(46)
VOL_DOWN(-)
é
1404-2
3)
STEREO
20
ss
WDEOT
OUT
SIGNAL
}
A
secwent|
|
|
Cc)
ey
a
fa
on
_)
D361
>)
62)
DDS
et
MATRIX
Pe
[stereo
GN”
fe
cae
‘
rN
S15A|30}
rt
|
7
t
|
0324
—326
0363
[wuTing}]
—(Y
ey
ao
6
é
[wire
a
00
SWiToH
©
oe
=
1¢305
|
ten
ore]
DRIVE
Suite
0303
[TUNING
<
>)
361,363
Gl)
TUNING
INIT-SET
G?)
VIDEO
Swi
he
g
S22
be
SS
Sas
FS-1
LED
Me
=
g
&
ge"
Soze
8
felis
es
22)
7
oy}
ee
are
or)
DETER
#
a
neo
ZEEE
F
tse
O08
co
ou
me
:
Za
&
SrEe
&|
ED
ira
Sree
RESET
@8)
on
=
-)
(EO
=
Z2e8
033503360337
0305
[EQuaLizer
|]
—PH)
DRIVE
G5)
Pe
iga(2
9328=
350
205-1
WD
fete
s.cLock)
RESET
SWITCH
0338
©
-0339.««O340
Se
vocal
3
es
0306
[
SURROUND
On
G4)
SuRR
2gale
Sy
(©)
[MONITOR
OUT]
0302
PD
Gi)
Tare
2
als
;
RESET
SWITCH
1
site|
EDT
En
ORES
eta}
2
5206-2
—{sTOP)
(36)
SYS/POWER
760]
6
MDEOT
OUT
cult].
DISPLAY
F
ts
§
aoe
sieafia)
_,
9832
~27V
+5V
i
BIN
SECTION
T
Ga)\/0
DATA
SI7A
ea)
Fur
oawe
|
xl
$20a|50]
teM
DIGITAL
cr302
a
&
SECTION
a
‘4MH2
DISP.
ONG?)
+5V
re
Gx
POWER
eS
AMP:
+12V
1C204
0201
+24v
jae
1CB0r
CONTROL
rea]
ous
sev
hes
5
VIDEO
IN
C803
SECTION
BF
SAMPLING
0364
CHANNEL
CHANNEL
DIVIDER
SWITCHING
=i
LED
ORIVE
-5v
1360-355
C356
,357
© i
9204
VIDEO
2)
egy
]CONTROL,
DIGITAL,
DISPLAY
5
VIDEO
IN
VIDEO
SECTION
Q803—806
CF301
ty 6MH2
—17—-
ee
>
aes

3-2. CIRCUIT BOARDS LOCATION
e@ Semiconductor Location
Revi
heen
e
ele
|
Ref..No.
|
Location Location Location
POWER
SPEAKER
TERMINAL
(SURROUND)
SPEAKER
SWITCH
TUNER
2
MIDEO
DIGITAL
VOLUME 1C421,804
RV401I-2 REAR RY831 TMB3i
POWER —o
AMP
1 L
R-CH eo |
va ~ DISPLAY Sk
MOTOR VOLUME
LED
oO
BALANCE
VOL
Ol
VERTER
KEY
BOARD
405-2
VIDEO
(3)
sour
(3)—t
©
0604
|
*Semiconductor
Lead
Layouts
|
¢4
{
H
o6oi—co3|
coety
CXD1355Q
$1-18752
2SA1142
2SC1841PA
10E2N
SIVB40
ct
28C2682
2SC3622AK
HZ4ALL
TTy
oes
US1060M
pape
mann
|
s
z
Es
le
cathode
aiS8
~
i
|
A
AP
$36!
$363
—E
CB
anode
C302
DDS
—MUTING
KEY
CONTROL
DET
DISPLAY
CONTROLLER
4
M5218L
UZP-5.6B
ie
.
2SA1175HFE
2SC3851-0
oa
uPC4570HA-1
2SC2785HFE
2SD2012
HZS6C3L
o
UZL-7L
e¢
letter side Ss
cathode
423456708
enode
M5F7805
i
aod
SEL1510C-C
M5F78M12
SEL1810W
-
HPD7S216AGF-573-3BE
ois
25K389-GR
Setraion<
2SC2921M0
.
:
MC921
3
y
cup
OUT
4
overs
|
peeeoe
9.
B
1
TOP
VIEW
c
2
anode
E—
or
cathode
M5F79M05
2
123
M5F79M12
DTA124E
2SA988F
.
2SA1684
DTC124ES
LO}
2804431
RBV-602-01
“iy
0364
|_|
»
+}
wn]
é
VJ
andy
be
Sn
Ree
8
i
Ee
|
& 8
+ é
ie:
' =
iG
—20—

STR-D2010 STR-D2010
3-3. PRINTED WIRING BOARDS
—PRE, MAIN AMP/POWER SECTION—
2
3
4
5
6 7 8
10
11
2
|
8
4
[|
6
|
6
17
e Refer to page 19 for Semiconductor Lead Layouts.
e Refer to page 20 for Semiconductor Location.
Note:
4 e @® s: parts mounted on the conductor side.
CND: Canadian
e { SURROUND AMPLIFIER BOARD }
ie.
{MAIN BOARD }
CND
MODEL 3405
{ POWER BOARD }
TO SURROUND AMPLIFIER BOARD
CN8OI 403,
|
TO MAIN BOARD
CNP804
1402
TO BPF BOARD
CNPBO6
CNP9OI
AC
Tov"
60H2
AC OUTLET
ACI20V. GOH? I
LSWITCHE D_1OOW MAX
AUDIO OUT

STR-D2010 S$TR-D2010
’
6
|
7
|
48
|19
20
|
24
22,
|
|
24
25.
|
26
27
28 29
«|
30
|
3
2]
33
[SPEAKER TERMINAL
BOARD (SURROUN
{VIDEO
(3)
BOARD
]
(SPEAKER
TERMINAL
BOARD
]
VIDEO 3
INPUT
{BALANCE VOL BOARD }
{ HEADPHONE BOARD ]
CNJ701
HEADPHONES}
[VIDEO BOARD }
[SPEAKER SWITCH BOARD }
VIDEO 2
{VOL LED BOARD]
Ss VIDEO OUT,
VIDEO!
MONITOR
S VIDEO OUT
[MOTOR VOLUME BOARD]
VIDEO 2/CDV
VIDEO IN
VIDEO OUT,
MONITOR
VIDEO OUT
—23—
|
=