Panasonic SA-XR55E User manual

ORDERNO. MD0505214C2
AV Control Receiver
SA-XR55E/ SA-XR55EB/ SA-XR55EG
Colour
(S)...............SilverType
(K)...............Black Type(E/EG only)
SPECIFICATIONS
Specification
AMPLIFIERSECTION
Power output(atAC230-240 V)
DIN1kHz(T.H.D. 1%) 2x100 W(6)
20 Hz-20 kHzcontinuouspower
outputboth channelsdriven 2x80 W(6)
Total harmonicdistortion
rated power at20 Hz-20 kHz 0.09 %(6)
Power bandwidth
both channelsdriven, -3dB 4Hz-88 kHz/ (6,
0.9%)
Power outputeach channel driven (atAC230-240 V)
DIN1kHz(T.H.D. 1%)
Front(L/R) 100 W(6)
Center 100 W(6)
Surround (L/R) 100 W(6)
Surround Back (L/R) 100 W(6)
Load impedance
Front(L/R)
AorB 6-16
Aand B 6-16
BI-WIRE 6-16

Center 6-16
Surround (L/R) 6-16
Surround Back (L/R) 6-16
Frequencyresponse
CD, TAPE, TV, DVD, DVD
RECORDER, VCR1, VCR2 4Hz-88 kHz, ±3dB
DVD6CH 4 Hz-44 kHz, ±3dB
Inputsensitivityand impedance
CD, TAPE, TV, DVD/DVD6CH, DVD
RECORDER, VCR1, VCR2 200 mV/22 k
S/Natrated power (6)
CD, TV, DVD, DVDRECORDER/
(Digital Input) 90 dB/ (IHF, A:103 dB)
Tonecontrols
BASS 50 Hz, +10 to -10 dB
TREBLE 20 kHz, +10 to -10 dB
Outputvoltage
TAPE, DVDRECORDER 200 mV
Channel balance (250 Hz-6.3kHz) ±1dB
Channel separation 55 dB
Subwoofer frequencyresponse (-6dB) 7 Hz-200 Hz
FMTUNERSECTION
Frequencyrange 87.50-108.00 MHz
Sensitivity
S/N30 dB 1.5V/75
S/N26 dB 1.3V/75
S/N20 dB 1.2V/75
IHF usablesensitivity(IHF ’58) 1.5V/75
IHF 46 dBstereo quieting sensitivity 22 V/75
Total harmonicdistortion
MONO 0.2%
STEREO 0.3%
S/N
MONO 60 dB
STEREO 58 dB
Frequencyresponse
20 Hz-15 kHz +1 dB, -2dB
Alternatechannel selectivity
±400 kHz 65 dB
Capture ratio 1.5dB
Imagerejection at98 MHz 40 dB
IF rejection at98 MHz 70 dB
Spuriousresponse rejection at98 MHz 70 dB
AMsuppression 50 dB

Stereo separation
1kHz 40 dB
Carrier leak
19 kHz -30 dB
38 kHz -50 dB
Channel balance (250 Hz-6.3kHz) ±1.5dB
Limiting point 1.2V
Bandwidth
IF amplifier 180 kHz
FMdemodulator 1000 kHz
Antennaterminal 75 (unbalanced)
AMTUNERSECTION
Frequencyrange 522-1611 kHz/ (9kHz
step)
530-1620 kHz/ (10
kHzstep)
Sensitivity 20 V, 330 V/m
Selectivity(at999 kHz) 55 dB
IF rejection (at999 kHz) 50 dB
VIDEO SECTION
Outputvoltageat1Vinput(unbalanced) 1±0.1Vp-p
Maximuminputvoltage 1.5Vp-p
Input/outputimpedance 75 (unbalanced)
S-Video
Input TV, DVD, DVD
RECORDER
Output TVMONITOR
ComponentVideo
Input TV, DVD, DVD
RECORDER
Output TVMONITOR
GENERAL
Power supply AC230-240 V, 50 Hz
Power consumption 135 W
Dimensions(W×H×D) 430 mm ×107.5mm ×
394 mm
Mass 4.6kg
Notes:
1.Specificationsare subjectto changewithoutnotice.
Mass and dimensionsare approximate.
2.Total harmonicdistortion ismeasured bythedigital
spectrumanalyzer.

2005 Matsushita ElectricIndustrial Co. Ltd.. All rights reserved.
Unauthorizedcopying and distribution isaviolation oflaw.
1. SAFETY PRECAUTIONS
1.1. GENERALGUIDELINES
1. Whenservicing. observetheoriginal leaddress. Ifashortcircuit
isfound, replace all parts whichhavebeenoverheatedor
damagedbytheshortcircuit.
2. Afterservicing, see toitthat all theprotectivedevices suchas
insulation barriers, insulation papersshieldsareproperly
installed.
3. Afterservicing, make thefollowing leakagecurrentchecks to
preventthecustomerfrom being exposedtoshock hazards.
1.1.1. LEAKAGE CURRENT COLD CHECK
1. Unplug theACcord and connect ajumperbetweenthetwo
prongson theplug.
2. Measuretheresistance value, withanohmmeter, betweenthe
jumperedACplug and eachexposedmetalliccabinet parton the
equipmentsuchas screwheads, connectors, control shafts, etc.
Whentheexposedmetallicparthas areturn pathtothechassis,
thereading shouldbebetween1M and 5.2 . / Whenthe
exposedmetal does nothaveareturn pathtothechassis, the
reading must be . Fig. 1

1.1.2. LEAKAGE CURRENT HOT CHECK (See Figure1.)
1. Plug theACcord directlyintotheACoutlet. Donotuse an
isolation transformerfor thischeck.
2. Connect a1.5k , 10 watts resistor, inparallel witha0.15 F
capacitors, betweeneachexposedmetallicparton theset and a
good earthground suchas awaterpipe, as showninFigure1.
3. Use anACvoltmeter, with1000 ohms/voltor moresensitivity, to
measurethepotential across theresistor.
4. Check eachexposedmetallicpart, and measurethevoltageat
eachpoint.
5. Reverse theACplug intheACoutlet and repeat eachoftheabove
measurements.
6. Thepotential at anypointshouldnotexceed0.75 volts RMS. A
leakagecurrenttester(Simpson Model 229 or equivalent) maybe
usedtomake thehotchecks, leakagecurrentmust notexceed1/
2milliamp. Incase ameasurementisoutsideofthelimits
specified, thereisapossibilityofashock hazard, and the
equipmentshouldberepairedand recheckedbeforeitisreturned
tothecustomer.
2. Caution for ACMains Lead

3. Before Repairand Adjustment
DisconnectAC power, discharge PowerSupplyCapacitors C707, C717, C718 and C924 through
a 10 , 10 Wresistorto ground. DONOTSHORT-CIRCUITDIRECTLY(with a screwdriver
blade, forinstance), as this maydestroysolidstate devices.
Afterrepairs are completed, restore powergraduallyusing a variac, to avoidovercurrent.
-Currentconsumption at AC230-240 V, 50 HzinNO SIGNALmode
shouldbe~400 mA.
4. Protection Circuitry
The protection circuitrymayhave operatedifeitherof the following conditions are noticed:

-Nosound isheard whenthepoweristurnedon.
-Sound stopsduring aperformance.
The function of this circuitryis to prevent circuitrydamage if, forexample, the positive and
negative speakerconnection wires are
“shorted”, orifspeakersystems with animpedance less thanthe indicatedratedimpedance of
the amplifierare used.
Ifthis occurs, followthe procedure outlines below:
1. Turn off thepower.
2. Determinethecause oftheproblemand correct it.
3. Turn on thepoweronce againafteroneminute.
Note :
Whenthe protection circuitryfunctions, the unitwill not operate unless the poweris firstturned
off and thenon again.
5. Handling the Lead-free Solder
5.1. Aboutleadfree solder(PbF)
Distinction of PbF P.C.B.:
P.C.B.s (manufactured) using leadfree solderwill have a PbF stamp on the P.C.B.
Caution:
-Pbfree solderhas ahighermelting pointthanstandard solder;
Typicallythemelting pointis50 -70°F(30 -40°C) higher. Please
use ahigh temperaturesoldering iron. Incase ofsoldering iron
withtemperaturecontrol, please set itto700 ±20°F(370 ±10°C).
-Pbfree solderwill tend tosplashwhenheatedtoo high (about
1100°F/600°C).
-Whensoldering or unsoldering, please completelyremoveall of
thesolderon thepinsor solderarea, and besuretoheat the
soldering points withthePbfree solderuntil itmelts enough.
6. Accessories
Note :Referto Packaging Materials & Accessories PartList(Section 18.3)forpartnumber.
Remote control

AC cord(ForEB only)
AC cord(ForE/EGonly)
FMindoorantenna
AMloop antenna

Antenna plug adaptor(ForEB only)
7. Operating Instructions
7.1. MainUnit
7.2. Remote Control
7.3. HomeTheaterConnections
7.3.1. TVand DVDPlayer
7.3.2. Speakers
7.3.3. ACPower SupplyCord
7.4. OtherConnections
8. Disassemblyand MainComponentReplacement
Procedures and Operational Check
“ATTENTION SERVICER”
Some chassis components maybe have sharpedges. Be careful whendisassembling and
servicing.
1. Thissection describes procedures for checking theoperation of
themajor printedcircuitboardsand replacing themain
components.
2. For reassemblyafteroperation checks or replacement, reverse