Panasonic RX-ES29GC User manual

Order No. MD0503060C3
PortableStereo CD System
RX-ES29GC / RX-ES29GS / RX-ES29GT
Colour
(S)..........Silver Type
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SPECIFICATIONS
Specification
RADIO
Frequencyrange
FM 87.50-108.00 MHz (50 kHz steps)
AM 522-1629 kHz (9kHz steps)
520-1630 kHz (10 kHz steps)
CD PLAYER
Sampling frequency 44.1kHz
Decoding 16 bit linear
Beam source Semiconductorlaser
(wavelength780 nm)
No. of channels 2channel, stereo
Wowand flutter Belowmeasurablelimit
D/Aconverter MASH (1bit DAC)
TAPE RECORDER
Track system Stereo
Monitorsystem Variablesound monitor
Recording system AC bias
Erasing system Multi Polemagnet
Frequencyrange
Normal position 50-14000 Hz
GENERAL
Speakers 8cm 5.4 x2
Jacks
Output Phones: 3.5mm stereo(16-32 )
Power requirement (ForGC/GS)
AC 110-127 V / 220-240 V, 50/60 Hz
Power consumption 33 W
Power requirement (ForGT)
AC 110 V, 60 Hz
Power consumption 32 W
Battery 12 V [Eight R20/LR20 (D, UM-1)
batteries]
Donot use rechargeabletypebatteries
Memorybackup forcomputer/
clock 6V [FourR6/LR6(AA, UM-3) batteries]
Donot use rechargeabletypebatteries
Dimensions 529 mm (W) x144 mm (H) x276
mm (D)
Mass (ForGC/GS) 4.4kgwithout batteries
Mass (ForGT) 4.2kgwithout batteries
Power consumption instandby
mode(ForGC/GS) 3.0W(117 V) / 3.5W(240 V)
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Power consumption instandby
mode(ForGT) 2.7W
Notes:
1. Specificationsaresubject to changewithoutnotice.
2. Mass and dimensionsareapproximate.
2005 Matsushita ElectricIndustrial Co. Ltd.. All rights reserved.
Unauthorized copying and distribution isaviolation of law.
1. Safety Precautions
1.1. GENERALGUIDELINES
1. When servicing, observe the original lead dress. Ifashort circuit
isfound, replace all parts which have been overheated or
damaged bythe short circuit.
2. After servicing, ensure that all the protective devices such as
insulation barriers, insulation papers shields are properly
installed.
3. After servicing, check for leakage current checks to prevent from
being exposed to shock hazards.
1.1.1. LEAKAGE CURRENTCOLD CHECK
1. Unplug the AC cord and connect ajumper between the two
prongs on the plug.
2. Using an ohmmeter measure the resistance value, between the
jumpered AC plug and each exposed metalliccabinet part on the
equipment such as screwheads, connectors, control shafts, etc.
When the exposed metallicpart has areturn path to the chassis,
the reading shouldbe between 1M and 5.2 . / When the
exposed metal does not have areturn path to the chassis, the
reading must be . Fig. 1
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1.1.2. LEAKAGE CURRENTHOTCHECK (See Figure1.)
1. Plug the AC cord directlyinto the AC outlet. Donot use an
isolation transformer for thischeck.
2. Connect a1.5k , 10 watts resistor, inparallel with a0.15 F
capacitors, between each exposed metallicpart on the set and a
good earth ground such as awater pipe, as showninFigure 1.
3. Use an AC voltmeter, with 1000 ohms/voltor more sensitivity, to
measure the potential across the resistor.
4. Check each exposed metallicpart, and measure the voltage at
each point.
5. Reverse the AC plug inthe AC outlet and repeat each of the above
measurements.
6. The potential at anypoint shouldnot exceed 0.75 volts RMS. A
leakage current tester (Simpson Model 229 or equivalent) maybe
used to make the hot checks, leakage current must not exceed 1/2
milliamp. Shouldthe measurement isoutside of the limits
specified, there isapossibilityof ashock hazard, and the
equipment shouldbe repaired and re-checked before itisreturned
to the customer.
2. Caution for AC Mains Lead
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3. Before Use
Be sure todisconnect the mains cordbefore adjusting the voltage selector. Use a minus (-)
screwdrivertoset the voltage selector(on the rearpanel) tothe voltage setting forthe area in
whichthe unit will be used.
(If the powersupplyinyourarea is 117V or120V, set tothe “127V” position.)
Note that this unit will be seriouslydamagedif this setting is not made correctly. (There is no
voltage selectorforsome countries; the correct voltage is alreadyset.)
4. Before Repair and Adjustment
Disconnect AC power, discharge PowerSupplyCapacitors C131, C231, C301, C307, C309, C310
and C331 through a 10 , 1 W resistortoground. DO NOTSHORT-CIRCUITDIRECTLY (witha
screwdriverblade, forinstance), as this maydestroysolidstate devices.
Afterrepairs are completed, restore powergraduallyusing a variac, toavoidovercurrent.
( ForGC/GS) Current consumption at AC 220-240 V / 117 V, 50/60 Hz inNO SIGNALmode should
be ~180 mA, ~200mA respectively.
(ForGT) Current consumption at AC 110 V, 60 Hz inNO SIGNALmode shouldbe ~150 mA
respectively.
5. Protection Circuitry
The protection circuitrymayhave operatedif eitherof the following conditions are noticed:
-Nosound isheard when the power isturned on.
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-Stops during aperformance.
The function of this circuitryis toprevent circuitrydamage if, forexample, the positive and
negative speakerconnection wires are “shorted”, orif speakersystems withanimpedance less
thanthe indicatedratedimpedance of the amplifierare used.
If this occurs, followthe procedure outlines below:
1. Turn off the power.
2. Determine the cause of the problem and correct it.
3. Turn on the power once againafter one minute.
Note:
Whenthe protection circuitryfunctions, the unit will not operate unless the poweris first turned
off and thenon again.
6. Handling the Lead Solder
6.1. About lead free solder (PbF)
Distinction of PbF P.C.B. :
P.C.B.s (manufactured) using leadfree solderwill have a PbF stampon the P.C.B.
Caution:
-Pb free solder has ahigher melting point than standard solder;
Typicallythe melting point is50 -70°F (30 -40°C)higher. / Please
use ahigh temperature soldering iron. Incase of the soldering
iron with temperature control, please set itto 700 ± 20°F (370 ±
10°C).
-Pb free solder will tend to splash when heated too high (about
1100°F/600°C).
-When soldering or unsoldering, please completelyremove all of
the solder on the pins or solder area, and be sure to heat the
soldering points with the Pb free solder until itmelts enough.
7. Precaution of Laser Diode
CAUTION:
This unit utilizes a class 1 laser.
Invisible laserradiation is emittedfromthe optical pickup lens.
Whenthe unit is turnedon:
1. Donot look directlyinto the pick up lens.
2. Donot use optical instruments to look at the pick up lens.
3. Donot adjust the preset variableresistor on the pickup lens.
4. Donot disassemblethe optical pick up unit.
5. Ifthe optical pick up isreplaced, use the manufacturer’sspecified
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replacement pick up only.
6. Use of control or adjustments or performance of procedures other
than those specified hereinmayresultinhazardous radiation
exposure.
CAUTION!
THIS PRODUCTUTILIZES A LASER.
USE OFCONTROLS OR ADJUSTMENTS OR PERFORMANCE OFPROCEDURES OTHER THAN
THOSE
SPECIFIED HEREIN MAY RESULT IN HAZARDOUS RADIATION EXPOSURE.
8. Handling Precautions For Traverse Deck
The laserdiode inthe traverse deck (optical pickup) maybreak downdue topotential difference
causedbystatic electricityof clothes orhumanbody.
So, be careful of electrostatic breakdownduring repairof the traverse deck (optical pickup).
Handling of CD traverse deck (optical pickup)
1. Donot subject the traverse deck (optical pickup) to static
electricityas itisextremelysensitive to electrical shock.
2. The short land between the No.4(LD)and No.5(GND)pins on the
flexibleboard (FFC)isshorted with asolder build-up to prevent
damage to the laser diode.
3. Take care not to applyexcessive stress to the flexibleboard (FPC
board) (Fig8.1).
4. Donot turn the variableresistor (laser power adjustment). Ithas
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alreadybeen adjusted.
Fig8.1
Grounding forelectrostatic breakdownprevention
1. Human bodygrounding (Fig8.2)
Use the anti-staticwrist strap to discharge the staticelectricity
from your body.
2. Work tablegrounding (Fig8.2)
Put aconductive material (sheet) or steel sheet on the area where
the traverse deck (optical pickup) isplaced, and ground the sheet.
Caution :
The staticelectricityof your clothes will not be grounded through
the wrist strap. So, take care not to let your clothes touch the
traverse deck (optical pickup). Fig8.2
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Caution whenReplacing the Optical Pickup :
The traverse has ashort point shorted with solder to protect the
laser diode against electrostatics breakdown. Besure to remove
the solder from the short point before making connections.
9. Accessories
Note : RefertoPacking Materials & Accessories Parts List (Section 25.5) forthe part number.
Remote Control.....1pc
AC cord.....1 pc (ForGC)
AC cord.....1 pc (ForGS)
AC cord.....1 pc (ForGT)
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