Onkyo TX-SV545 User manual

TX-SV545
Ref. No.3582
ONKYO.
SERVICE
MANUAL
AUDIO
VIDEO
CONTROL
RECEIVER
MODEL
TX-SV545
Black and Silver models
BMD
BMP,BMPT,BMPA,SMP
BMWT
120V AC,60Hz
220-230V/120V AC,50/60Hz
220V AC,50Hz
SAFETY-RELATED
COMPONENT
WARNING!!
COMPONENTS
IDENTIFIED
BY
MARK
A\
ON
THE
SCHEMATIC
DIAGRAM
AND
IN
THE
PARTS
LIST
ARE
CRITICAL
FOR
RISK
OF
FIRE
AND
ELECTRIC
SHOCK.
REPLACE
THESE
COMPONENTS
WITH
ONKYO
PARTS
WHOSE
PART
NUMBERS
APPEAR
AS
SHOWN
IN
THIS
MANUAL.
MAKE
LEAKAGE-CURRENT
OR
RESISTANCE
MEASUREMENTS
TO
DETERMINE
THAT
EXPOSED
PARTS
ARE
ACCEPTABLY
INSULATED
FROM
THE
SUPPLY
CIRCUIT
BEFORE
RETURNING
THE
APPLIANCE
TO
THE
CUSTOMER.
ONKYO.
AUDIO COMPONENTS
TABLE OF CONTENTS
Specifications.
Service procedures..
Adjustment procedures...
Tuner sectlon.........06
Amplifier section.........0+0+
Microprocessor connection diag:
Microprocessor terminal description:
IC block diagrams and descriptions,
Printed circuit board parts list....
Volume section..........
Tuner section......
Video section...... 50
Block diagrams.
Amp. section.
Tuner section......
Printed circuit board vie
Main circuit section...
Volume sectton.........
Display and switch secttons..
Power supply and amp. sectlons.
Power amplifier section........ we 37
Tuner sectlon.......
Video section....... wwe 49
Schematic diagrams.
Main circult section...
Volume section...........2+ ives
Display and switch sections.
Power supply and amp. secti
Power amplifier section:
Tuner section......
Video section
Exploded view..
Parts list.......
Packing view

TX-SV545
SPECIFICATIONS
AMPLIFIER SECTION
Power Output
U.S. & Canadian models:
Front L/R channels:
Front LAR and Center channels:
Surround L/R channels:
(Rear only driven)
Other area models:
Front L/R channels:
Front L/R and Center channels:
Surround L/R channels:
(Rear only driven)
IM Distortion:
Damping Factor:
Input Sensitivity/Impedance
PHONO:
CD/TAPE 1, 2/VIDEO-1, 2, 3:
MULTICHANNEL INPUT
(FRONT L/R, SUR-
ROUND L/R, CENTER):
MULTICHANNEL INPUT
(SUBWOOFER):
Output Level/Impedance
REC OUT:
PRE OUT:
Phono Overload:
Frequency Response:
RIAA Deviation:
Tone Control
Bass:
Treble:
Signal-to-Noise Ratio
(Surround OFF)
Phono:
CD/Tape:
Muting:
VIDEO SECTION
Input Sensitivity and Impedance
Video (Composite):
Output Level and Impedance
Video (Composite):
75 watts per channel, min. RMS at
8 ohms, both channels driven from 20
Hz to 20 kHz with no more than 0.08%
total harmonic distortion.
65 watts per channel, min. RMS at
8 ohms, three channels driven from
20 Hz to 20kHz with no more than
0.08% total harmonic distortion.
25 watts per channel, min. RMS at
8ohms, both channels driven from
20 Hz to 20 kHz with no more than
0.3% tetal harmonic distortion.
25 watts per channel, min. RMS at
8 ohms, both channels driven from 20 Hz
to 20 kHz with no more than 0.08% total
harmonic distortion.
2X 100 watts at 6 ohms, 1 kHz (DIN)
3 X95 watts at 6 ohms, | kHz (DIN)
2 x 35 watts at 6 ohms, | kHz (DIN)
2 X 30 watts at 6 ohms, | kHz (DIN)
0.08% at rated power (Front)
60 at 8 ohms (Front)
2.5 mV/S0 kohms
200 mV/S0 kohms
200 mV/50 kohms
36 mV/50 kohms
200 mV/2.2 kohms
1 V/ 470 ohms
120 mV RMS at | kHz, 0.5% T.H.D.
20 Hz to 30 kHz, +1 dB (Surround OFF)
20 Hz to 20 kHz, +0.8 dB
+10 dB at 50 Hz
+10 dB at 10 kHz
80 dB (IHF A, 5 mV input)
100 dB (THF A)
-co dB
1 Vp-p/75 ohms
1 Vp-p/75 ohms
TUNER SECTION
FM
Tuning Range:
Usable Sensitivity
Mono:
Stereo:
50 dB Quieting Sensitivity
Mono:
Stereo:
Capture Ratio:
Image Rejection Ratio
U.S. & Canadian models:
Other area models:
IF Rejection Ratio:
Signal-to-Noise Ratio
Mono:
Stereo:
Alternate Channel Attenuation:
Selectivity:
AM Suppression Ratio:
Total Harmonic Distortion
Mono:
Stereo:
Frequency Response:
Stereo Separation:
Muting level:
AM
Tuning Range
U.S. & Canadian models:
European & Australian
models:
Worldwide models:
Usable Sensitivity:
Image Rejection Ratio:
IF Rejection Ratio:
Signal-to-Noise Ratio:
Total Harmonic Distortion:
GENERAL
Power Supply
Power Consumption
U.S. & Canadian models:
Other area models:
Dimensions (W X H X D):
Weight:
U.S. & Canadian models:
Other area models:
REMOTE CONTROL
U.S & Canadian models:
Other area models:
Transmitter:
Signal range:
Power supply:
87.5 — 108.0 MHz (50 kHz steps)
11.2 dBf, 1.0 pV (75 ohms)
17.2 dBf, 2.0 pV (75 ohms)
17.2 dBf, 2.0 nV (75 ohms)
37.2 dBf, 20 uV (75 ohms)
1.5 dB
40 dB
85 dB
90 dB
76 dB
70 dB
55 dB
50 dB (DIN)
50 dB
0.1%
0.2%
30 Hz — 15 kHz, +1.0 dB
45 dB at 1 kHz
30 dB at 70 Hz — 10 kHz
17.2 dBf
530—1,710 kHz (10 kHz steps)
$22—1,611 kHz (9 kHz steps)
531—1,602 kHz (9 kHz steps),
530—1,710 kHz (10 kHz steps)
30 pV
40 dB
40 dB
40 dB
0.7%
AC 120 V, 60 Hz
AC 220 V, 60 Hz
AC 230 V, 50 Hz
AC 220-230 V and 120 V switchable,
50/60 Hz
3.5A
310 W
435 x 175 X 390 mm
17-1/8" X 6-7/8" X 15-3/8"
11.7 kg, 25.8 Ibs.
12.5 kg, 27.6 lbs.
RC-343M
RC-344S
Infrared
Approx. 5 meters, 16 ft.
Two “AA” batteries (1.5 V x 2)
Specifications and features are subject to change without notice.

SERVICE PROCEDURES
1.
N
w
S
Replacing the fuses
TT
This
symbol
located
near
the
fuse
indicates
that
the
fuse
used
is
fast
operating
type.
For
continued
protection
against
fire
hazard,
replace
with
same
type
fuse.
For
fuse
rating
refer
to
the
marking
adjacent
to
the
symbol.
=
Es
Ce
symbole
indique
que
le
fusible
utlise
est
a
rapide.
Pour
une
protection
permanente,
n'utiliser
que
des
fusibles
de
meme
type.
Ce
darnier
est
indique
la
qu
le
present
symbol
est
appose.
CIRCUIT
NO.
PARTNO.
DESCRIPTION
F901
252198
8A-UL.,
Primary
fuse
<D/W>
F902
252077
4A-SE-EAK.
Primary
fuse
<P/T/W/A/K>
F903
252075
2.5A-SE-EAK,
Fuse
<P>
252074 2A-SE-EAK, Fuse <T/A>
F915.F916
252166
6.3A-UL/T-237,Secondary
fuse
<D>
252079
6.3A-SE-EAK,
Secondary
fuse
<P/T/W/A/K>
NOTE: <D>: 120V model only
<P>: European model only
<T>: Asian mode! only
<W>: Wolrdwide model only
<A>: Australian model only
<K>: Korean model only
To Initialize the unit
This
device
employs
a
microprocessor
to
perform
various
functions
and
operations.
If
interference
generated
by
an
external
power
supply,
radio
wave,
or
other
electrical
source
results
in
accident
which
causes
the
specified
operations
and
functions
to
operate
abnormally.
To
perform
a
result,
please
follow
the
procedure
below.
1.
Press
and
hold
down
the
CD
button,
then
press
the
POWER
button.
2.
After
"clear"
is
displayed,
the
prest
memory
and
each
mode
stored
in
the
memory,
such
as
surround,
are
initialized
and
will return to the factory settings.
Safety-check out
(Only U.S.A. model)
After
correcting
the
original
service
problem,
perform
the
following
safety
check
before
releasing
the
set
to
the
customer.
Connect
the
insulating-resistance
tester
between
the
plug
of
power
supply
cord
and
the
screw
on
the
back
panel.
Specifications: 3.3 Mohm+10% at 500V.
Change of voltage
Worldwide
models
are
equipment
with
a
voltage
selector
to
conform
with
local
power
supplies.
This
switch
is
located
on
the
back
panel.
Be
sure
to
set
this
switch
to
match
the
voltage
of
the
power
supply
in
your
area
before
turning
the
power
switch
on.
This
switch
is
set
to
220V
at
the
factory.
Voltage
is
changed
by
sliding
the
groove
in
the
switch
with
the
screwdriver
to
the
right
cm
TX-SV545
or left. Confirm that the switch has been moved all the way to the
right or left before turning the power switch on.
VOLTAGE
SELECTOR
220V~
120V~
Memory preservation
This unit does not require memory preservation batteries.
A built-in memory power back-up system preserves contents of
the
memory
during
power
failures
and
even
when
the
unit
is
unplugged.
The unit must be plugged in and the power switch turned on and
off once in order to charge the back-up system. Note that since
this
is
not
a
permanent
memory,
the
power
switch
must
be
turned
on
and
off
a
few
times
each
month
the
keep
the
back-up
system
operative.
The
period
of
the
time
during
which
memory
contents
are
preserved
after
power
has
last
been
turned
off
varies
depending
on
climate
and
placement
of
the
unit.
On
the
average,
memory
contents
are
protected
over
a
period
of
3
to
4
weeks
(a
minimum
of
2
weeks)
after
the
last
time
power
has
been
turned
off.
This
period
is
shorted
when
the
unit
is
exposed
to
very
high
humidity
or used
in
an
area
with
an
extremely
humid
climate.
Setting the tuning step frequency
Worldwide
models
are
equipped
with
a
step
band
selector
switch.
This
switch
is
located
on
the
back
panel.
This
switch
is
set
to
9
kHz
at
the
factory,
but
may
have
to
be
reset
to
10
kHz
depending
on
the
area
where
the
unit
is
used.
AM band step
Europe: 9 kHz
U.S.A.: 10kHz
AM FREQ.
STEP
9kHz 10kHz
. Changing the band step
With
the
exception
of
the
worldwide
models,
a
tuning
step
selector
switch
is
not
provided.
When
you
change
the
band
step,
change
the
parts
as
shown
below.
To 10 kHz To 9 kHz
R745 No connection 2.7 kohm
R746 10 kohm 1.5 kohm

ADJUSTMENT PROCEDURES
FM
Item
Step
Connection
FM
SG
Stereo
modu-|
Tuning
Output
—"
instrument
output
lator
output
|frequency}
indicator
FM
IF/RF : Fig:
Stereo
=
Stereo
Par
99.0MHz Ext.
mod.65dBf(60dB)
Channel
L
Distortion
orR
kHz
|
99-OMHz)
analyzer
|
L
Channel
R
AC
voltmeter
ome
OMHz
Channel
R
Channel
L
1kHz
AC
voltmeter
120V model
indicator
AM SG Tuning Output Adjustment
530kHz Bc 1.4+0.2V
voltmeter
600kHz AC i
400Hz 30% mod. | 600kHz itm Maximum
60dB/m eae block L105
99.0MHz
Ext. mod.
65dBf(60dB)
99.0MHz
19.2dBf(14dB)
400Hz 30% mod.
60dB/m
Reference Specification
FM tuned voltage:87.50MHz~ 108.00MHz
More than 1.3V~Less than 9V
AM tuned voltage:530kHz~ 1710kHz
1.4+0.4~Less than 9.0V
Adjustment
Adjust
Rewarks
point
for
99.0MHz
IDC
voltmeter
|
voltmeter
[DC
voltmeter|
L101
_|
L
O+20mV_
|
+20mV
EM
MUTE/MODE
kHz
75kHz
devi.
99.0MHz
AC
vometr
voltmeter
acvimen|
ea
|
65dBf(60dB)
Distortion
;
L102
is
necessary.
990kHz AC 999kHz
400Hz 30% mod. | 990kHz voltmeter L106 Maximum 400Hz 30% mod.
60dB/m 60dB/m
Reference Specification
FM tuned voltage:87.50MHz~ 108.00MHz
More than 1.3V~Less than 9V
AM tuned voltage:522kHz~ 161 1kHz
odin
switch:ON/STEREO
Repeat
the
steps
1
and
3
until
no
further
adjustment
Don't turn more
Minimum | than + 180°
Minimum
Minimum
Maximum and
same separation
Digital OSC coil
DC on RF 1.4+0.2V
voltmeter block L105
AC RF coil
oltmet on RF Maximum
vernnerer block L105
AC ;
AM
tuned
voltage:531kHz~
1602kHz
1.4+0.4~Less
than
9.0V
(Worldwide
model)
1.4+0.4~Less than 9.0V
(230V model)
SvSAS-XL

ANTENNA
TERMINAL OUTPUT
TERMINAL
DISTORTION
SIGNAL
GENERATOR
ANALYZER
MILLIVOLT
<Fig.I> METER
ANTENNA
OUTPUT
TERMINAL TERMINAL
DISTORTION
FM
STEREO
MODULATOR
FM
SIGNAL
GENERATOR
ANALYZER
AC
See
VOLTMETER
ANTENNA
TERMINAL
iy
OUTPUT
OSCILLO-
SIGNAL
OO
ct
GENERATOR
RM
SCOPE
<Fig.3>
OUTPUT
TERMINAL
60cm
AC
st re VOLTMETER
or
GENERATOR - OSCILLOSCOPE
AM
LOOP
op
ANTENNA
:
ANTENNA
ANTENNA
TERMINAL
Side
+
of
C132
{Accessary)
DIGITAL
MILLIVOLT
<AM> METER
a
a
42)
<
ui
rs
oa

MICROPROCESSOR CONNECTION DIAGRAM
4
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SYSTEM
BUS
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CIRCUIT
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23 DSPRST 7”
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19 DARST |
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MICROPROCESSOR TERMINAL DESCRIPTIONS
Pin No. Description
1 Connect to the terminal CS of FL tube driver.
2 Input pin of Jog A
3 OGB Input pin of Jog B
MROFF Multi-Room control output pin
‘ower source contro} output pin
ystem code output pin
ideo output control pin
ideo output control pin
Sa) Oy}
i
5
No s/o o/s
G|a [oe) mae)
7
ro) Q}]<|<|<
=|] Y1O/9
AY) ala
+4 rc
wo | > |
onnect to the terminal STAB of electro volume IC
ront speaker relay control output pin
ulti speaker relay control output pin
enter and surround speaker relay control output pin
ata output pin to Function switch, PLL and electro volume Ics.
lock output pin to Function switch, PLL and electro volume Ics.
hip enable output pin to PLL IC.
trobe output pin to Function switch Ics
uting output pin for surround multi amplifier.
Reset output pin for D/A converter
20 Muting output pin for tuner circuit
21 Request input pin from terminal HREQ of DSP IC.
utput pin to connect the terminal SS of DSP IC.
utput pin to connect the terminal RESET of DSP IC.
= =
C, Tl lies) a = tC
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z2
23 DSPRST
24
25. |FMUT
W ”
uting output pin for amplifier of front channels
26
uting
output
pin
for
amplifier
of
center
and
sub
woofer
channels
27
trobe
output
pin
to
Electro
volume
28 3-D BASS control output pin
29 | FSTB Strobe output pin to Electro volume
30. |STBY/RECV — |STAND-BY and RECEIVED indicator output pin
31 VOLDOWN Volume control output pin
32 |VOLUP
EES
wn
33
STEREO Stereo broadcast detection input pin
Description
Broadcast detection input pin
System reset input pin
Input pin from remote control
System code input pin
Power failure detection input pin
Clock input pin from RDS decoder
Power supply pin (+5V)
Ceramic
oscillator
connection
pins
of
main
system
clock
Connect
the
1OMHz
ceramic
oscillator.
I
nternal connection pin
Operation key connection pins
50
BAND
Initializing
input
pin
for
band
and
RDS
function
32
MODE—lnivalizing
npurpin
for
operationmode
[783
[IPM____]Detection
input
pin
of
Intelligent
Power
Management
operation
__
SE
[VOLP__
Position
detection
input
pin
of
master
volume
-35JAVDD
[Analog
power
supply
pin
of
A/D
convener
$7
58
59
Video
output
contro!
pin
VCTLD Video output control pin
Muting output pin of video
RDSSIG RDS broadcast detection input pin
Input pin from terminal MOSI of DSP IC
Data
output
pin
from
terminal
SDATA
of
FL
tube
Clock
input
pin
from
terminal
SCLK
of
DSP
IC
Clock
output
pin
to
connect
to
terminal
SCK
of
FL
tube
driver
62
63
64
+
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ol

TX-SV545
IC
BLOCK
DIAGRAMS
AND
DESCRIPTIONS
TC9162AN
(Analog
Switch)
xX
7,
“
VV
Bi
V {\
©
VV
Gia bs
LEVEL SHIFTER
LATCH CIRCUIT
Oe
R
LATCH CIRCUIT
Se ee Se ee
©)
¢
FE
v AN
j
’
@)
O-Ba @
re
Tog sv sd Powersupply pin(+)
2,3,5,6,8,9,11 Switch input/output pins
5
”
witch input/output pins
1
1
COM1~COM4_ [Common pins
Tis (cK _|Clockinputfordatatransfer_ |
[6 [DATA _| Serial data input pin for switch setting _
Q
TC9274N-008 (Analog Switch)
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3
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YALSIOIY LUIS
NY LSIHS THA37
ais Vivgd w> GND
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TC9163AN
(Analog
Switch)
LEVEL SHIFTER
LATCH CIRCUIT
LEVEL SHIFTER
Funetion
Pt
iss
Powersupply
pint)
Pa
fcnp
Groundpin
Ps
tvpp
Powersupply
pints)
126,25, 1~S8
ST
CK
14
28
Pa
[st
|
Strobe
input
pin
for
data
interruption
_|
Pts
ck
clock
input
for
data
transfer
TA7291
(Volume
Motor
Driver)
Vcc
-*
Vref
CCW:Counter-clockwise direction
CW:Clockwise direction
INI IN2 GND
TX-SV545

TX-SV545
TC9213P
(Electro
Volume)
YVss
DECODER
LEVEL
SHIFT
STORE
CIRCUIT
cinculT
K
|
GENERATION
re
CIRCUIT
ft
14bits SHIFT REGISTER CIRCUIT
TC9164AN
(Analog
Switch)
CODE
DETECTOR
circuit ;
fi
L-S1
Bt
R-S1
~
O-d]
E]
-
L-83
p+
|
|
R-S3
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ete)
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1
[ao
—,
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mal
aoe
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13
2
|
|e
R-COMI
L-S5
ret
a
FS
a
R-S5
HB
LIS
o|
|
a
ss
@
ee
EPS
(Ms
(
ye
L-COM2
4
a
<
a
R-COM2
sacl
Pt
R-S7
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Dll
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oe
AUTH
ee
=n
|
DATA
CK
SHIFT REGISTER
-10-—