Panasonic SA-DT300E Manuale utente
AD0203066C2
AV Control Receiver
SA-DT300E
SA-DT300EB
SA-DT300EG
Colour
(S)...........Silver Type
© 2002 Matsushita Electric Industrial Co., Ltd. All rights reserved. Unauthorized copying and distribution is a violation of law.
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1 Before Repairs
1. Turn off the power supply. Using a 10 Ω, 10 W resistor, connect both ends of power supply capacitors (C730,
C750) 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
80 - 270 mA
75 - 265 mA
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2 Protection Circuitry
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 systems with an impedance less than the indicated rated impedance of this unit are used.
If this occurs, follow the procedures 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
AC mains lead for SA-DT300E, SA-DT300EG
(RJA0019-2X)................................1 pc.
AC mains lead for SA-DT300EB
(RJA0053-3X)................................1 pc.
AM loop antenna
(REK0063).....................................1 pc.
FM indoor antenna
(RSA0007).....................................1 pc.
Video cable
(RJL1P019B15)............................1 pc.
Speaker cables
(REX1129).....................................2 pcs.
Remote control transmitter
(N2QAJB000049)...........................1 pc.
Remote control batteries
(R6/LR6, “AA”, UM-3).....................2 pcs.
Note: These are available on sales route.
Antenna plug adaptor for SA-DT300EB only
(SJP9009)......................................1 pc.
RCAJ adaptor
(VFA0151-2)...................................1 pc.
Cleaning cloth for main unit
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(RFE0088-1)..................................1 pc.
Sheet of speaker-cord stickers
(RQCA0950)...................................1 pc.
Sheet of speaker feet*1
(small, 25 feet).................................1 pc.
Sheet of speaker feet*1
(large, 10 feet)...................................1 pc.
Spikes*1............................................4 pcs.
Sheet of speaker pads*1
(8 pads).........................................1 pc.
Note:
The accessories (indicated *1) are packed with SB-DT300.
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4 Caution for AC Mains Lead
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6 Self-Diagnostic Function
This unit is equipped with a self-diagnostic function which, in the event of a malfunction, automatically displays a code
indicating the nature of the malfunction.
Use this self-diagnostic function when servicing the unit.
6.1 To display the malfunction code
U70 DVD:
Automatically displays on the AV control receiver when a malfunction occurs. Refer to Fig. 6-1.
F61:
Automatically displays on the AV control receiver when a malfunction occurs. Refer to Fig. 6-1.
Fig. 6-1.
6.2 To return to the normal display
1. For U70 DVD
Press some operation buttons on the AV control receiver.
To re-display the code, switch the power off (Standby/on button), and then switch power back on
again.
2. For F61
If F61 is displayed, the power will automatically be switched off and the standby indicator will light
up.
F61 will be displayed for 3 seconds, and then the clock will be displayed.
To re-display the code, switch the power on. F61 will be re-displayed, and then after 3 seconds the
clock will be displayed and the power will automatically switch off.
6.3 Display contents
6.3.1 U70 DVD
Problem or condition
A bus-line communications error has occurred as a result of the flat cable being inserted incorrectly, thus
preventing the system from operating.
If U70 is displayed on the AV control receiver, DVD/CD player cannot be operated by remote
control.
Correction Procedure
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1. To check for correct insertion of flat cable.
Insert connector until you hear a click.
Make sure the white side of the cable is on your right side. Refer to Fig. 6-2.
Fig. 6-2.
2. Breakage of flat cable. (Check and replace.)
3. If the problem is not corrected by items 1 and 2 above, this indicates a faulty IC.
SA-DT300:
IC941 (C2CBHG000095)
SL-DT300:
IC402 (C2BBFD000350)
Check these ICs and replace.
6.3.2 F61
Problem or condition
When the Standby/on switch is switched on, it automatically switches back off, making it impossible to switch
power on.
Correction procedure
Faulty AV control receiver (SA-DT300) power supply line or when a DC voltage is applied to speaker terminals.
(Check and replace.)
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7 Operation Checks and Component
Replacement
Procedures
This section describes procedures for checking the operation of the major printed circuit boards and
replacing the main components.
For reassembly after operation checks or replacement, reverse the respective procedures. Special
reassembly procedures are described only when required.
7.1 Checking for the digital amp P.C.B.
Check the digital amp P.C.B. (A side) as shown below.
Check the digital amp P.C.B. (B side) as shown below.
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