Table Of Contents - Panasonic SA-AK66 Service Manual

SA-AK66
Beam source/wave length Semiconductor laser/780 nm
Stereo
20 Hz - 20 kHz (+1, -2 dB)
Wow and flutter Below measurable limit
Digital filter 8 fs
MASH (1 bit DAC)
Number of channels
Frequency response
D/A converter
m@ GENERAL
Power supply AC 120 V, 60Hz
Power consumption 230 W
Power consumption in standby mode
0.29 W
250 X 332 X 319 mm
9 27/32" x 13 1/16" x 12 9/16"
(8.3 kg) 18.3 Ib
Dimensions (W x H x D)
Mass
m@ SYSTEM
SC-AK66(P) Music Center: SA-AK66(P)
Front Speaker: SB-AK66(P)
Center & Surround Speaker: SB-PT70A (P)
Music Center: SA-AK66(PC)
Front Speaker: SB-AK66(P)
Center & Surround Speaker: SB-PT70A (P)
SC-AK66(PC)
Notes:
1. Specifications are subject to change without notice. Mass and
dimensions are aproximate.
2. Total harmonic distortion is measured by the digital spectrum
analyzer.
A, WARNING
This service information is designed for experienced repair technicians only and is not designed for use by the general public.
It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product.
Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to service
or repair the product or products dealt with in this service information by anyone else could result in serious injury or death.
CONTENTS
Page
F Safety Precautlont-s-nsesrceesecenne scree cece cee ese ens 2
2 Before Repair and Adjustment -----------------------------------77222 2227 3
3 Protection Circuitry --------------------------rrrrrrrrrernnnnn nnn 3
. PCCOS SONI So neene ttc ne ese a eens ce apes agree ps toe asecaencena en cnents 4
5 Handling Precautions For Traverse Deck ------------------*+---------"" 5
6 Precaution of Laser Diode ---------------------++2222-eeeeeeenennteeeeeeeeenees 6
7 Operation Procedures --------------------------neesenneernrrnreren nnn nesses nennes 7
8 Operation Checks and Main Component Replacement
Se, ea ae ec ei ieee ab eae 9
9 Self-Diagnostic Function -------------------------renrnennnseee nce eeenneceenees 17
10 Description of Error Code -------------------------22-enreccnsecc ecco neccenees 18
1 Safety Precaution
(This "Safety Precaution" is applied only in U.S.A.)
Page
11 CD Test Mode Function ------------------------------2--nnnenrrcnon nn nrccnnn es 19
12 Measurements and Adjustments ~----------------------------------------- 20
13 Illustration of IC #i, Transistors and Diodes ------------------------- 22
14 Terminal Function off IC iii -----------r--reerreeceeenettceeteen tren ttceetene 23
15 BlOCK: Disgralin sssce-s econ se csencsnsecsce sceketirsensetemn ses seurteoneosrauedesosess 26
16 Schematic Diagram --------------------------2222reeereeereoeeeeenenennnttttttnnes 33
17 Printed Circuit Board --------------------------nnrnernn nn rernrnn errr cnrrcnnn es 46
18 Wiring Connection Diagram ----------------------------r-rrnnrr renner 57
19 Troubleshooting Guide ---------------------------------r--onnrrnnnnnnrrcnnnn es 58
20 Parts Location and Replacement Parts List ------------------------- 59
1. Before servicing, unplug the power cord to prevent an electric shock.
2.When replacing parts, use only manufacturer's recommended components for safety.
3. Check the condition of the power cord. Replace if wear or damage is evident.
4. After servicing, be sure to restore the lead dress, insulation barriers, insulation papers, shields, etc.
5. Before 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.