Technics SA-EH560 Manuale utente
Table Of Contents
COVER
1 Before Repairs
2 Protection Circuitry
3 Accessories
4 Caution for AC Main
Leads
5 Location of Controls
6 Operation Checks and
Component
ReplacementProcedures
6.1 Checking for the AC IN
P.C.B.
6.2 Checking for the
operation P.C.B.
6.3 Checking for the main P.
C.B.
6.4 Replacement for the
regulator transistor
6.5 Replacement for the
power IC
7 To Supply Power Source
8 Self-Diagnostic Mode
8.1 To display the
malfunction code
8.2 To return to the normal
display
8.3 Display contents
8.3.1 U70 CD, U70 DECK
(displayed automatically)
8.3.2 F61
9 Schematic Diagram Notes
10 Schematic Diagram
11 Printed Circuit Board
Diagram
12 Type Illustration of ICs,
Transistors and Diodes
13 Wiring Connection
Diagram
14 Terminal Function of ICs
14.1 IC901
(LC8A524A5N28):System
Control/FL Drive
15 Block Diagram
16 Replacement Parts List
17 Cabinet Parts Location
18 Packaging
Service Manual
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AD0002043C2
Tuner/Amplifier
SA-EH560
Colour
(S).....................Silver Type
Areas
(E).....................Europe.
(EB)..................Great Britain.
(EG)..................Germany, Italy, France, Netherlands and Denmark.
© 2000 Matsushita Electric Industrial Co., Ltd. All rights reserved. Unauthorized copying and distribution is a violation of law.
Table Of Contents
COVER
1 Before Repairs
2 Protection Circuitry
3 Accessories
4 Caution for AC Main Leads
5 Location of Controls
6 Operation Checks and Component ReplacementProcedures
6.1 Checking for the AC IN P.C.B.
6.2 Checking for the operation P.C.B.
6.3 Checking for the main P.C.B.
6.4 Replacement for the regulator transistor
6.5 Replacement for the power IC
7 To Supply Power Source
8 Self-Diagnostic Mode
8.1 To display the malfunction code
8.2 To return to the normal display
8.3 Display contents
8.3.1 U70 CD, U70 DECK(displayed automatically)
8.3.2 F61
9 Schematic Diagram Notes
10 Schematic Diagram
11 Printed Circuit Board Diagram
12 Type Illustration of ICs, Transistors and Diodes
13 Wiring Connection Diagram
14 Terminal Function of ICs
14.1 IC901 (LC8A524A5N28):System Control/FL Drive
15 Block Diagram
16 Replacement Parts List
17 Cabinet Parts Location
18 Packaging
© 2000 Matsushita Electric Industrial Co., Ltd. All rights reserved. Unauthorized copying and distribution is a violation of law.
1 Before Repairs
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1. Turn off the power supply. Using a 10Ω, 10 W resistor, connect both ends of power supply
capacitors (C701, C703 and C702, C704) in order to discharge the voltage.
2. Before turning the power supply on, after completion of repair, slowly apply the primary
voltage by using a power supply voltage controller to make sure that the consumed current at
50 Hz in NO SIGNAL mode should be shown below with respectto supply voltage 230/240 V.
Power supply voltage AC 230 V AC 240 V
Consumed current 50 Hz 70 ~ 250 mA
•@
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2 Protection Circuitry
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The protection circuitry may have operated if either of the following conditions is noticed:
No sound is heard when the power is switched ON.
Sound stops during a performance.
The functions of this circuitry is to prevent circuitry damage if, for example, the positive and negative
speaker connection wires are shorted, or if speaker system with an impedance less than the indicated
rated impedance of this unit are used.
If this occurs, follow the procedure outlined below.
1. Switch OFF the power.
2. Determine the cause of the problem and correct it.
3. Switch ON the power once again.
Note:
When the protection circuitry functions, the unit will not operate unless the power is first switched
OFF and then ON again.
•@
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3 Accessories
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AC power supply cord for (E),(EG) areas/(RJA0019-X)...........................1 pc.
AC power supply cord for (EB) area/(RJA0053-2X).........................1 pc.
AM loop antenna set/(RSA0022-J)...........................1 pc.
FM indoor antenna/(RSA0007)..............................1 pc.
Speaker cords/(REE0499)..............................2 pcs./(REE0984)..............................2 pcs./
(REE0985)..............................2 pcs.
Remote control transmitter/(RAK-EHA29WH).....................1 pc.
Remote control batteries/(R6/LR6,“AA”, UM-3)............2 pcs.
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