Panasonic SC-NA10EE / SC-NA10GS / SC-NA10GSX Simplified Service Manual ▷ View online
PSG1311002AE
Wireless Speaker System
Model No.
SC-NA10EE
SC-NA10GS
SC-NA10GSX
SC-NA10GS
SC-NA10GSX
Product Color: (K)...Black Type (For GS/GSX only)
(R)...Red Type (For EE only)
TABLE OF CONTENTS
PAGE
PAGE
1 Safety Precautions----------------------------------------------- 3
1.1. General Guidelines---------------------------------------- 3
1.2. Caution for AC Cord (For GS & GSX only) --------- 4
1.3. Before Repair and Adjustment ------------------------- 4
1.4. Protection Circuitry ---------------------------------------- 4
1.5. Safety Part Information----------------------------------- 4
1.2. Caution for AC Cord (For GS & GSX only) --------- 4
1.3. Before Repair and Adjustment ------------------------- 4
1.4. Protection Circuitry ---------------------------------------- 4
1.5. Safety Part Information----------------------------------- 4
2 Warning -------------------------------------------------------------- 5
2.1. Prevention of Electro Static Discharge (ESD)
to Electrostaticy Sensitive (ES) Devices---------- 5
2.2. Service caution based on Legal restrictions -------- 6
3 Service Navigation -----------------------------------------------7
3.1. Service Information ----------------------------------------7
3.2. Notes ---------------------------------------------------------- 7
3.2. Notes ---------------------------------------------------------- 7
4 Specifications ------------------------------------------------------8
4.1. Others (Licenses) ------------------------------------------ 8
5 Schematic Diagram ----------------------------------------------9
5.1. MAIN (AUDIO IN) CIRCUIT -----------------------------9
5.2. MAIN (MICON) CIRCUIT ------------------------------ 10
5.3. MAIN (DAMP) CIRCUIT-------------------------------- 11
5.4. MAIN (POWER) CIRCUIT ----------------------------- 12
5.2. MAIN (MICON) CIRCUIT ------------------------------ 10
5.3. MAIN (DAMP) CIRCUIT-------------------------------- 11
5.4. MAIN (POWER) CIRCUIT ----------------------------- 12
Notes: Please use this manual together with service manual
Model No.[SC-NA10EG-A/R, SC-NA10EB-A, SC-NA10P/PC/GN-K Order no. PSG1310001CE].
Model No.[SC-NA10EG-A/R, SC-NA10EB-A, SC-NA10P/PC/GN-K Order no. PSG1310001CE].
2
5.5. MAIN (CHARGER) CIRCUIT-------------------------- 13
5.6. JACK, VOLUME & BUTTON CIRCUIT ------------- 14
5.6. JACK, VOLUME & BUTTON CIRCUIT ------------- 14
6 Printed Circuit Board ------------------------------------------ 15
6.1. MAIN P.C.B. (Side A)------------------------------------ 15
6.2. MAIN P.C.B. (Side B)------------------------------------ 16
6.3. JACK, VOLUME & BUTTON P.C.B.----------------- 17
6.2. MAIN P.C.B. (Side B)------------------------------------ 16
6.3. JACK, VOLUME & BUTTON P.C.B.----------------- 17
7 Exploded View and Replacement Parts List ----------- 18
7.1. Exploded View and Mechanical replacement
Parts List --------------------------------------------------- 18
7.2. Electrical Replacement Parts List -------------------- 23
3
1 Safety Precautions
1.1.
General Guidelines
1. IMPORTANT SAFETY NOTICE
There are special components used in this equipment which are important for safety. These parts are marked by in the
Schematic Diagrams, Circuit Board Layout, Exploded Views and Replacement Parts List. It is essential that these critical parts
should be replaced with manufacturer’s specified parts to prevent X-RADIATION, shock, fire, or other hazards. Do not modify
the original design without permission of manufacturer.
Schematic Diagrams, Circuit Board Layout, Exploded Views and Replacement Parts List. It is essential that these critical parts
should be replaced with manufacturer’s specified parts to prevent X-RADIATION, shock, fire, or other hazards. Do not modify
the original design without permission of manufacturer.
2. An Isolation Transformer should always be used during the servicing of AC Adaptor whose chassis is not isolated from the AC
power line. Use a transformer of adequate power rating as this protects the technician from accidents resulting in personal
injury from electrical shocks. It will also protect AC Adaptor from being damaged by accidental shorting that may occur during
servicing.
injury from electrical shocks. It will also protect AC Adaptor from being damaged by accidental shorting that may occur during
servicing.
3. When servicing, observe the original lead dress. If a short circuit is found, replace all parts which have been overheated or
damaged by the short circuit.
4. After servicing, see to it that all the protective devices such as insulation barriers, insulation papers shields are properly
installed.
5. After servicing, make the following leakage current checks to prevent the customer from being exposed to shock hazards.
1.1.1.
Leakage Current Cold Check
1. Unplug the AC cord and connect a jumper between the two prongs on the plug.
2. measure the resistance value, with an ohmmeter between the jumpered AC plug and each exposed metallic cabinet part on
2. measure the resistance value, with an ohmmeter between the jumpered AC plug and each exposed metallic cabinet part on
the equipment such as screwheads, connectors, control shafts, etc. When the exposed metallic part has a return path to the
chassis, the reading should be between 1M
chassis, the reading should be between 1M
Ω and 5.2MΩ. When the exposed metal does not have a return path to the chas-
sis, the reading must be
1.1.2.
Leakage Current Hot Check
1. Plug the AC cord directly into the AC outlet. Do not use an isolation transformer for this check.
2. Connect a 1.5k
2. Connect a 1.5k
Ω, 10 watts resistor, in parallel with a 0.15μF capacitors, between each exposed metallic part on the set and a
good earth ground such as a water pipe, as shown in Figure 1-1.
3. Use an AC voltmeter, with 1000 ohms/volt or more sensitivity, to measure the potential across the resistor.
4. Check each exposed metallic part, and measure the voltage at each point.
5. Reverse the AC plug in the AC outlet and repeat each of the above measurements.
6. The potential at any point should not exceed 0.75 volts RMS. A leakage current tester (Simpson Model 229 or equivalent)
4. Check each exposed metallic part, and measure the voltage at each point.
5. Reverse the AC plug in the AC outlet and repeat each of the above measurements.
6. The potential at any point should not exceed 0.75 volts RMS. A leakage current tester (Simpson Model 229 or equivalent)
may be used to make the hot checks, leakage current must not exceed 1/2 milliamp. In case a measurement is outside of the
limits specified, there is a possibility of a shock hazard, and the equipment should be repaired and rechecked before it is
returned to the customer.
limits specified, there is a possibility of a shock hazard, and the equipment should be repaired and rechecked before it is
returned to the customer.
Figure. 1-1
4
1.2.
Caution for AC Cord (For GS & GSX only)
1.3.
Before Repair and Adjustment
Caution :
DO NOT SHORT-CIRCUIT DIRECTLY (with a screwdriver blade, for instance), as this may destroy solid state devices.
After repairs are completed, restore power gradually using a variac, to avoid overcurrent.
DO NOT SHORT-CIRCUIT DIRECTLY (with a screwdriver blade, for instance), as this may destroy solid state devices.
After repairs are completed, restore power gradually using a variac, to avoid overcurrent.
• Current consumption at AC 240V, at 50Hz during power on at volume minimum, (Selector : AUX mode) should be ~200 mA.
1.4.
Protection Circuitry
The protection circuitry may have operated if either of the following conditions are noticed:
• No sound is heard when the power is turned on.
• Sound stops during a performance.
• Sound stops during a performance.
The function 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 the amplifier are used.
If this occurs, follow the procedure outlines below:
"shorted", or if speaker systems with an impedance less than the indicated rated impedance of the amplifier are used.
If this occurs, follow the procedure outlines below:
1. Turn off the power.
2. Determine the cause of the problem and correct it.
3. Turn on the power once again after one minute.
2. Determine the cause of the problem and correct it.
3. Turn on the power once again after one minute.
Note:
When the protection circuitry functions, the unit will not operate unless the power is first turned off and then on again.
When the protection circuitry functions, the unit will not operate unless the power is first turned off and then on again.
1.5.
Safety Part Information
Safety Parts List:
There are special components used in this equipment which are important for safety.
These parts are marked by in the Schematic Diagrams, Exploded View & Replacement Parts List. It is essential that these
critical parts should be replaced with manufacturer’s specified parts to prevent shock, fire or other hazards. Do not modify the
original design without permission of manufacturer.
critical parts should be replaced with manufacturer’s specified parts to prevent shock, fire or other hazards. Do not modify the
original design without permission of manufacturer.
Safety
Ref. No.
Part No.
Part Name & Description
Remarks
2
N4HULNZ00003
BATTERY PACK
40
RYK1837D-K
REAR CABINET ASS’Y
A1
K2CP2YY00061
AC CORD
GS,GSX
A1
K2CQ2YY00119
AC CORD
A1
K2CT2YY00097
AC CORD
GS,GSX
A2
RFEA229E-AH
AC ADAPTOR
A3
VQT5C49
O/I BOOK (Ar/Cn)
GS,GSX
A3
VQT5C51
O/I BOOK (En)
GS,GSX
A3
VQT5E40
O/I BOOK (Ru/Ur)
EE
IP1891
D4FB1R100015
RESETTABLE FUSE
IP1901
D1JBR015A007
PROTECTOR
