Panasonic SAAK58 - MINI HES W/CD User manual

ORDERNo.MD0005087C3
CD Stereo System
SA-AK58
Colour
(S) ................. Silver Type
Areas
(GN)............... Oceania.
TAPE SECTION:AR2MECHANISM SERIES
CD SECTION:RAE0152Z-M TRAVERSE DECK SERIES
SYSTEM :SC-AK58
SPECIFICATIONS
Specifications
1

AMPLIFIER SECTION
RMS power output
THD 10%, bothchannelsdriven
Front (Low) 110Wper channel (6 )
Front (High) 40Wper channel (6 )
Total Bi-amppower 150Wper channel (6 )
Power output in
DolbyProLogicmode
RMS power output
THD 10%, bothchannelsdriven
Front (Low) 110Wper channel (6 )
Front (High) 40Wper channel (6 )
Center 1kHz 30W(8 )
Surround 1kHz 15Wper channel (4 )
Total power output 360W
/ Input sensitivity
AUX 250mV
Input impedance
AUX 13.9k
FM TUNER SECTION
Frequencyrange 87.5- 108.00MHz / (50kHz
steps)
Sensitivity 2.5 V (IHF)
S/N 26dB 2.2 V
Antennaterminal (s) 75 (unbalanced)
AM TUNER SECTION
Frequencyrange 522 - 1629kHz (9kHz steps)
Sensitivity
S/N 20dB 560 V/m
CASSETTE DECK SECTION
Track system 4 track, 2channel
Heads
Record/playback Soildpermalloyhead
Erasure Doublegapferritehead
Motor DC servomotor
Recording system AC bias 100kHz
Erasing system AC erase 100kHz
Tapespeed 4.8cm/s
Over frequencyresponse (+3, -6dB at DECK OUT)
NORMAL(TYPE I) 35Hz - 14kHz
HIGH (TYPE II) 35Hz - 14kHz
S/N 50dB (Aweight)
Wowand flutter 0.18%(WRMS)
Fast forwardand rewind times Approx. 120 secondswith
C-60 cassettetape
CD SECTION
2

Sampling frequency 44.1kHz
Decoding 16 bit linear
Beam source/wavelength Semiconductorlaser/ /
780nm
Frequencyresponse 20Hz - 20kHz (+1, -2dB)
Wowand flutter Belowmeasurablelimit
Digital filter 8fs
D/Aconverter MASH (1bit DAC)
GENERAL
Power supply AC230 - 240V, 50Hz
Power consumption 185W
Standby
Normal mode 18W
Ecomode 0.4W
Dimensions(WxHxD) 270x331x338mm
Weight 8.4kg
Power consumption instandbymode
Ecomodeon 0.25W
Ecomodeoff 18W
Notes:
1. Specificationsare subject tochangewithout notice. / Weight
and dimensionsare approximate.
2. Total harmonicdistortion ismeasuredbythedigital spectrum
analyzer.
*1 Manufacturedunder license fromDolbyLaboratories
Locensing Corporation. “Dolby”, thedouble-D symbol and
“PRO LOGIC” are trademarks of DolbyLaboratories
Licensing Corporation.
SYSTEM
SC-AK58 : / Mainunit : SA-AK58
/ Front speakers : SB-AK58 /
Surround speakers : SB-PS55 /
Center Speakers : SB-PC55
2000 Matsushita ElectricIndustrial Co., Ltd. All rights reserved.
Unauthorized copying and distribution isaviolation of law.
1. Accessories
3

2. Before Repair
1. Turn off the power supply. Using a10 , 10W resistor, connect
both ends of power supplycapacitors (C571 -574, 558) inorder to
discharge the voltage.
2. Before turning the power supplyon, after completion of repair,
slowlyapplythe primaryvoltage byusing apower supplyvoltage
controller to make sure that the consumed current at 50HzinNO
SIGNALmode shouldbe shownbelow with respect to supply
voltage 230/230-240V.
Powersupply
voltage AC230 - 240V, 50Hz
Consumed
current Less than 350mA
3. Protection Circuitry
The protection circuitrymayhave operatedif eitherof the following conditions are noticed:
-Nosound isheard when the power isswitched ON.
-Sound 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. Switch OFF the power.
2. Determine the cause of the problem and correct it.
3. Switch ONthe power once again.
Note:
When the protection circuitryfunctions, the unitwill not operate
unless the power isfirst switched OFF and ONagain.
4

4. Handling Precautions for Traverse Deck
The laserdiodes 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).
4.1. Handling the traverse deck / (optical pickup)
1. The traverse deck (optical pickup) isan extremelyhigh-precision
construction and must not be subjected to impact, excessive
vibration, or other types of rough handling.
2. Inorder to prevent staticelectricitydamage to the laser diode, use
ashort pinor similar tool to short the optical pickup’sflexible
circuitboards after theyhave been disconnected from the main
circuitboard.
3. Handlethe flexiblecircuitboards with care; excessive force could
cause them to be broken.
4. Donot turn the pre-set variableresistor (for adjustment of the
laser power); ithas been adjusted at the factory. / (as shownin
Fig.1)
Fig.1
4.2. Grounding for electrostaticbreakdownprevention
1. Human bodygrounding / Use the anti-ataticwrist strap to
discharge the staticelectricityfrom your body.
2. Work tablegrounding / Put aconductive material (sheet) or steel
sheet on the area where the optical pickup isplaced, and ground
the sheet. (sa shownin Fig.2)
Fig.2
5

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)
4.3. Caution when Replacing the Traverse Deck
The traverse deck has a short point shortedwithsolderprotect the laserdiode against
electrostatic breakbown. Be sure toremove the solderfromthe short point before making
connections.
CAUTION:
THISPRODUCTUNTILIZES ALASER. USE OFCONTROLS OR
ADJUSTMENTS ORPERFORMANCEOFPROCEDURES OTHER
THAN THOSE SPECIFIEDHEREINMAYRESULT INHAZARDOUS
RADIATIONEXPOSURE.
5. Precaution of Laser Diode
6

6. Location of Controls
7

7. Location of Controls for Remote Control
Transmitter
8

8. Operation Checks and Component Replacement
Procedures
-Thissection describes procedures for checking the operation of
the major printed circuitboards and replacing the main
components.
-For reassemblyafter operation checks or replacement, reverse the
respective procedures. Special reassemblyprocedures are
described onlywhen required.
9

8.1. Checking for the mainP.C.B.
10

-Check the mainP.C.B. as shownbelow.
8.2. Disassemblyfor the CD changer ass’y
(The CD changerunit canbe removeduntil the traybase / ornament wouldremoved.)
8.2.1. Disassemblyforthe disc trayornament
-Follow the (Step 1) -(Step 3) of item 8.1.
11

12

13

8.2.2. Disassemblyforthe CD changerunit
-Follow the (Step 1) -(Step 3) of item 8.1.
-Follow the disassemblyinstruction for the disc tray/ ornament of
item 8.2.1.
14

8.3. Checking for the unitoperational condition
(Place the unit horizontallywhenloading the CD changerunit.)
8.3.1. Initial setting of CD unit
-Follow the (Step 1) -(Step 3) of item 8.1.
-Follow the disassemblyinstruction for the disc tray/ ornament of
item 8.2.1.
-Follow the disassemblyinstruction for the CD changer / unitof
item 8.2.2.
15

8.3.2. Checking forthe CD servo P.C.B.
-The initial setting of CD unitmust be completed. / (Refer to the
initial setting of CD unitinitem 8.3.1.)
16

-Check the CD servo P.C.B. as shownbelow.
8.3.3. Checking forthe dolbyprologicP.C.B. FL P.C.B. and cassettemechanism
control P.C.B.
-The initial setting of CD unitmust be completed. / (Refer to the
initial setting of CD unitinitem 8.3.1.)
17

-Check the dolbyproloogicP.C.B. FL P.C.B. and / cassette
mechanism control P.C.B. as shownbelow.
8.3.4. Checking forthe powersupplyP.C.B.
-The initial setting of CD unitmust be completed. / (Refer to the
initial setting of CD unitinitem 8.3.1.)
18

-Check the power supplyP.C.B. as shownbelow.
8.4. Replacement for the traverse deck ass’y
-Follow the (Step 1) -(Step 3) of item 8.1.
19

-Follow the disassemblyinstruction for the disc tray/ ornament of
item 8.2.1.
-Follow the disassemblyinstruction for the CD changer / unitof
item 8.2.2.
20