Panasonic sa ak 95 service manual

Page 1

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Service M

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DIGITAL AUDIO

P

ORDER NO. MD980306101
A6

anual

CD Stereo System

SA-AK95

Colour (K) ....Black Type
Areas

U.S.A.

- Remote control
2 hammer PC .. Canada.
. Front Center Surround
System Main unit speakers speaker speakers
SC-AK95 SA-AK95 SB-A K95 SB-PCSS SB-P355
SB-PS55 SB-AKQS SA-AK95 SB-AK95 SB-PS55
Tape Deck: Mechanism AR2 Series
Traverse Deck: RAE01522 Mechanism Series
Specifications
Amplifier section Recording system AC bias tOOkHz
Rated minimum sine wave Erasing system AC erase
RMS power output Tape speed 4.acrnls (IV/s ips)
1.0% total harmonic distortion Frequency response (-5. +6 dB) at DECK OUT
1kHz both channels driven 85W per channel (on) NORMAL 35Hz-14kHz
60Hz-13kHz both channel driven 80W per channel (set HIGH 35Hz14kHz
Power output in the Dolby Pro Logic SIN 50dB (A weighted)
mode 1.0% total harmonic distortion at tkHz Wow and flutter 0.18% (WRMS)
From 85W per channel (69) Fast forward and rewind times Approx. 120 seconds with C-GO cassette tape
Center 35w (an) OD section
Surround 17.5w per channel (49) Sampling lrequency 44.1 kHz
Total power output 240W Decoding 16 bit linear
Input sensitivity Beam sourcelwavellength Semiconductor laser/780nm
AUX 250mV Number of channels Stereo
MIC 0,7mV Frequency response 20Hz-20kHz (+I , -2dB)
Input impedance SIN
AUX 10m CD UNIT OUT 9565 (JISA)
MIG 6009 Wow and flutter Below measurable limit
FM tuner section Digital tiller ats
Frequency range 87.9-1073MH2 (200kHz steps) out converter MASH (1 bit DAC)
87.5-108.0MHZ (100kHz steps) General
Sensitivity 16.3(lBi (1 .SuV, lHFSB) Power supply A0120V, SOHZ
Antenna tennlnal(s) 75st (unbalanced) Power consumption 165W
AM tuner section DimentionsMxHxD) 270 (Wide)/350 (High)/398 (Depth)mm
Freq-{my range 52N7101 WWW Weighl 10.3kg (22mm
SIN 2065 500uV/m
Cassette deck section
Track system 4 track, 2 channel Notes:
Heads . 1. Specifications are sublect to change without notice.
Record/playback Solid pemlalloy head . l , .
Erasure .3me gap [ewe head Weight and d mentions are approxtmate.
Motor 00 servo motor 2. Total harmonic distortion is measured by the digital spectrum analyzer.
A WARNING

This service information is designed tor experienced repair technicians only and is not des
does not contain warnings or cautions to advi
Products powered by electricity should be ser
service or repair the product or products dealt

Panasonic

igned ior use by the general public. It
so non-technical individuals of potential dangers in attempting to service a product.
viced or repaired only by experienced pruiessional technicians. Any attempt to

with in this sen/ice information by anyone else could result in serious injury or death.

© 1998 Matsushita Electric Industrial 00., Lid.
All rights reserved. Unauthorized copying and
distribution is a violation oi law.

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SA-AK95

I Contents

Precaution oi Laser Diode
Safety Precautlon
Accessories .....
Location oi Controls
COHIIOCNOHS ........
Listening to Radio Broadcasts .
Listening to CDs .
Listening to Tapes
Enjoying Sound with DOLBY PRO LOGI
Recording from Radio Broadcasts
Recording from CDs
Tape to Tape Recordin
Singing Along with KARAOKE .
Handling Precautions for Traverse Deck .
Operation Checks and Main Component
Replacement Procedures ............................................ 26 ~ 45

I Precaution of Laser Diode

CAUTION: This unit utilizes a class 1 laser. invisible Iase
turned on:
1. Do not look directly into the pickup lens.

Page
Sell Diagnostic Display Function 7 ~ 49
CD Test Mode 50 ~ 52
Measurements and Adjustments 3 ~ 56
Schematic Diagram ........... 7 ~ 76
Wiring Connection Diagram . 76, 77
Block Diagram 3 ~ 84
Printed Circuit Board Diagram 5 ~ 93

Terminal Function ct Ics
Type illustration of lCs Trans stars and ...... 99
Cabinet Parts Location
Mechanism Parts Location ..
Loading Parts Location .
Replacement Parts List .
Packaging

r radiation is emitted from the optical pickup lens when the unit is

2. Do not use optical instruments to look at the pickup lens.

Do not adjust the preset variable resistor on the optical pickup.

Do not disassemble the optical pickup unit.

If the optical pickup is replaced, use the manufactures specified replacement pickup only.

Use of control or adiustments or perion'nance oi procedures other than those specified herin may result in hazard-
ous radiation exposure.

95"?!

I Safety Precaution (This safety preoaution Is applied only in u.s.A.)

Before servicing, unplug the power cord to prevent an electric shock.

When replacing parts, use only manufactures recommended components for salely.

Check the condition of the power cord. Replace ii wear or damage is evident.

After servicing, be sure to restore the lead dress, insulation barriers, insulation papers, shields, etc.

Betore returning the serviced equipment to the customer, be sure to make the following insulation resistance test to prevent
the customer from being exposed to a shock hazard.

@PWW.

O INSULATION RESISTANCE TEST

1. Unplug the power cord and short the two prongs oi the plug with a jump

2. Turn on the power switch.

3. Measure the resistance value with ohmmeter between the jumpered AC plug and each exposed metal cabinet part, such as
screwheads antenna, control shafts, handle brackets, etc. Equipment with antenna terminals should read between 3M9 and
5.2 M) to all exposed parts. (Fig. A) Equipment without antenna terminals should read approximately infinity to all exposed
parts. (Fig. B)

Antenna
terminal \
Exposed Exposed ,4»
metal part metal part
Ohm meter
(9- A) (Fig. B)
Hesisianoe=aM {2-5.2M Q Resistance=Appro>c 0°

Note: Some exposed parts may be isolated from the chassis by design. These will read infinity.

4. It the measurement is outside the specified limits, there is a possibility ot a shock hazard. The equipment should be repaired and
rechecked before it is returned to the customer.

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