Panasonic SC-NA30GN Manual de usuario

Unauthorized copying and distribution is a violation of

law.

PSG1310005CE

Wireless Speaker System

Model No. SC-NA30GN

SC-NA30P

SC-NA30PC

Product Color: (K)...Black Type (For NA30P/PC)

(S)...Silver Type (For NA30GN/P)

TABLE OF CONTENTS PAGE PAGE

1 Safety Precautions----------------------------------------------- 3

1.1. General Guidelines---------------------------------------- 3

1.2. Before Repair and Adjustment------------------------- 4

1.3. Protection Circuitry---------------------------------------- 4

1.4. Safety Part Information----------------------------------- 4

2 Warning-------------------------------------------------------------- 5

2.1. Prevention of Electrostatic Discharge (ESD)

to Electrostatically Sensitive (ES) Devices---------- 5

2.2. Service caution based on Legal restrictions-------- 6

3 Service Navigation----------------------------------------------- 7

3.1. Service Information --------------------------------------- 7

4 Specifications ----------------------------------------------------- 8

4.1. Others (Licenses)------------------------------------------ 8

5 General/Introduction -------------------------------------------- 9

5.1. About the power of this unit----------------------------- 9

5.2. About the DC OUT terminal (USB)-------------------- 9

5.3. One-Touch Connection (Connecting by NFC) ----10

6 Location of Controls and Components ------------------11

6.1. Main Unit Key Button Operations-------------------- 11

7 Service Mode----------------------------------------------------- 12

7.1. Service Mode ---------------------------------------------12

7.2. Doctor Mode-----------------------------------------------13

7.3. Version Display Mapping-------------------------------14

8 Troubleshooting Guide ---------------------------------------15

9 Disassembly and Assembly Instructions---------------16

9.1. Disassembly flow chart---------------------------------17

9.2. Types of Screws------------------------------------------ 17

9.3. Main Parts Location Diagram------------------------- 18

9.4. Disassembly of Rear Cabinet Block----------------- 19

9.5. Disassembly of Passive Radiator Unit (SP4) &

(SP5)--------------------------------------------------------20

9.6. Disassembly of Jack P.C.B. ---------------------------21

9.7. Disassembly of NFC P.C.B. ---------------------------22

9.8. Disassembly of Bluetooth Module -------------------23

9.9. Disassembly of Battery Pack--------------------------24

9.10. Disassembly of Main P.C.B.---------------------------25

9.11. Disassembly of Woofer Speaker (SP3)-------------27

9.12. Disassembly of Tweeter Speaker (SP1) &

(SP2) --------------------------------------------------------28

9.13. Disassembly of Mic Unit--------------------------------29

9.14. Disassembly of Top Ornament Block ---------------29

9.15. Replacement of Top Ornament-----------------------30

9.16. Disassembly of Volume P.C.B.------------------------31

9.17. Replacement of Gear Box Assembly ---------------33

9.18. Disassembly of Guide Plate Block-------------------37

10 Service Position -------------------------------------------------38

10.1. Checking of Main P.C.B. (Side B)--------------------38

10.2. Checking of Main P.C.B. (Side A)--------------------39

11 Block Diagram ---------------------------------------------------41

11.1. SYSTEM CONTROL & AUDIO (1/2) BLOCK

DIAGRAM--------------------------------------------------41

11.2. SYSTEM CONTROL & AUDIO (2/2) BLOCK

DIAGRAM--------------------------------------------------42

11.3. POWER SUPPLY BLOCK DIAGRAM --------------43

12 Wiring Connection Diagram---------------------------------44

13 Schematic Diagram---------------------------------------------45

13.1. Schematic Diagram Notes-----------------------------45

13.2. MAIN (AUDIO IN) CIRCUIT ---------------------------47

13.3. MAIN (MICON) CIRCUIT-------------------------------48

13.4. MAIN (DAMP) CIRCUIT--------------------------------49

13.5. MAIN (POWER) CIRCUIT -----------------------------50

13.6. MAIN (CHARGER) CIRCUIT--------------------------51

13.7. JACK, VOLUME & MOTOR CIRCUIT--------------52

14 Printed Circuit Board ------------------------------------------53

14.1. MAIN P.C.B. (Side A)------------------------------------53

14.2. MAIN P.C.B. (Side B)------------------------------------54

14.3. JACK, VOLUME & MOTOR P.C.B.------------------55

15 Appendix Information of Schematic Diagram---------57

15.1. Voltage Measurement & Waveform Chart ---------57

16 Exploded View and Replacement Parts List-----------61

16.1. Exploded View and Mechanical replacement

Parts List ---------------------------------------------------61

16.2. Electrical Replacement Parts List--------------------67

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.

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.

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

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 1MΩand 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 1.5kΩ, 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)

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.

Figure 1-1

1.2. 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.

• Current consumption at AC 240V, at 50Hz during power on at volume minimum, (Selector : AUX mode) should be ~200 mA. (For

GN)

• Current consumption at AC 120V, at 60Hz during power on at volume minimum, (Selector : AUX mode) should be ~200 mA. (For

P/PC)

1.3. 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.

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:

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.

Note:

When the protection circuitry functions, the unit will not operate unless the power is first turned off and then on again.

1.4. 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.

Safety Ref. No. Part No. Part Name & Description Remarks

2 N4HULQZ00001 BATTERY PACK

10 RFKGCNA30EBS FRONT CABINET ASS’Y GN-S

10 RFKGCNA30P-S FRONT CABINET ASS’Y P-S

10 RFKGCNA30PCK FRONT CABINET ASS’Y P/PC-K

A1 K2CJ2YY00093 AC CORD GN-S

A2 RFEA228C-AG AC ADAPTOR P-K, P-S, PC-K

A2 RFEA229E-AH AC ADAPTOR GN-S

A3 VQT5C36 O/I BOOK (En) P-K, P-S, PC-K

A3 VQT5C37 O/I BOOK (Cf) PC-K

A3 VQT5C51 O/I BOOK (En) GN-S

IP1891 D4FB1R100015 RESETTABLE FUSE

IP1901 D1JBR015A007 PROTECTOR

2Warning

2.1. Prevention of Electrostatic Discharge (ESD) to Electrostatically Sensi-

tive (ES) Devices

Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are called Elec-

trostatically Sensitive (ES) Devices.

The following techniques should be used to help reduce the incidence of component damage caused by electrostatic discharge

(ESD).

1. Immediately before handling any semiconductor component or semiconductor-equipped assembly, drain off any ESD on your

body by touching a known earth ground. Alternatively, obtain and wear a commercially available discharging ESD wrist strap,

which should be removed for potential shock reasons prior to applying power to the unit under test.

2. After removing an electrical assembly equipped with ES devices, place the assembly on a conductive surface such as alumi-

num foil, to prevent electrostatic charge buildup or exposure of the assembly.

3. Use only a grounded-tip soldering iron to solder or unsolder ES devices.

4. Use only an anti-static solder removal device. Some solder removal devices not classified as “anti-static (ESD protected)” can

generate electrical charge sufficient to damage ES devices.

5. Do not use freon-propelled chemicals. These can generate electrical charges sufficient to damage ES devices.

6. Do not remove a replacement ES device from its protective package until immediately before you are ready to install it. (Most

replacement ES devices are packaged with leads electrically shorted together by conductive foam, aluminum foil or compara-

ble conductive material).

7. Immediately before removing the protective material from the leads of a replacement ES device, touch the protective material

to the chassis or circuit assembly into which the device will be installed.

CAUTION:

Be sure no power is applied to the chassis or circuit, and observe all other safety precautions.

8. Minimize bodily motions when handling unpackaged replacement ES devices. (Otherwise harmless motion such as the

brushing together of your clothes fabric or the lifting of your foot from a carpeted floor can generate static electricity (ESD) suf-

ficient to damage an ES device).

2.2. Service caution based on Legal restrictions

2.2.1. General description about Lead Free Solder (PbF)

The lead free solder has been used in the mounting process of all electrical components on the printed circuit boards used for this

equipment in considering the globally environmental conservation.

The normal solder is the alloy of tin (Sn) and lead (Pb). On the other hand, the lead free solder is the alloy mainly consists of tin

(Sn), silver (Ag) and Copper (Cu), and the melting point of the lead free solder is higher approx.30 degrees C (86°F) more than that

of the normal solder.

Definition of PCB Lead Free Solder being used

Service caution for repair work using Lead Free Solder (PbF)

• The lead free solder has to be used when repairing the equipment for which the lead free solder is used.

(Definition: The letter of “PbF” is printed on the PCB using the lead free solder.)

• To put lead free solder, it should be well molten and mixed with the original lead free solder.

• Remove the remaining lead free solder on the PCB cleanly for soldering of the new IC.

• Since the melting point of the lead free solder is higher than that of the normal lead solder, it takes the longer time to melt the

lead free solder.

• Use the soldering iron (more than 70W) equipped with the temperature control after setting the temperature at 350±30 degrees

C (662±86°F).

Recommended Lead Free Solder (Service Parts Route.)

• The following 3 types of lead free solder are available through the service parts route.

RFKZ03D01K-----------(0.3mm 100g Reel)

RFKZ06D01K-----------(0.6mm 100g Reel)

RFKZ10D01K-----------(1.0mm 100g Reel)

Note

* Ingredient: Tin (Sn), 96.5%, Silver (Ag) 3.0%, Copper (Cu) 0.5%, Cobalt (Co) / Germanium (Ge) 0.1 to 0.3%

The letter of “PbF” is printed either foil side or components side on the PCB using the lead free solder.

(See right figure)

3 Service Navigation

3.1. Service Information

This service manual contains technical information which will allow service personnel’s to understand and service this model.

Please place orders using the parts list and not the drawing reference numbers.

If the circuit is changed or modified, this information will be followed by supplement service manual to be filed with original service

manual.

4 Specifications

4.1. Others (Licenses)

QAmplifier Section

RMS Output Power (AC Adaptor)

Normal Mode

10% total harmonic distortion

Front ch (each ch driven): 5 W per channel (1 kHz, 6 Ω)

Subwoofer: 10 W per channel (100 Hz, 3 Ω)

Total RMS output power 20 W

RMS Output Power (Battery)

Normal Mode

10% total harmonic distortion

Front ch (each ch driven): 4 W per channel (1 kHz, 6 Ω)

Subwoofer: 8 W per channel (100 Hz, 3 Ω)

Total RMS output power 16 W

RMS Output Power (AC Adaptor/Battery)

Long Play Mode

10% total harmonic distortion

Front ch (each ch driven): 2 W per channel (1 kHz, 6 Ω)

Subwoofer: 4 W per channel (100 Hz, 3 Ω)

Total RMS output power 8 W

FTC Output Power (AC Adaptor) (For P/PC)

1.0% total harmonic distortion

Front ch (both ch driven): 250 Hz - 16 kHz 3.5 W per chan-

nel (6 Ω)

Subwoofer: 70 Hz - 500 Hz 3 W (3 Ω)

Total FTC power 10 W

QSpeaker Section

Front Speaker (L/R)

Type 1 way, 1 speaker system

(Closed type)

Unit(s) 5 cm x 2 (2” x 2)

Impedance 6 Ω

SUBWOOFER

Type 1 way, 1 speaker system

(passive radiator type)

Unit(s) 8 cm x 1 (3 1/8” x 1)

Impedance 3 Ω

Passive Radiator

Unit 8 cm x 2 (3 1/8” x 2)

QBluetooth Section

Bluetooth®system specifica-

tion: Ver. 3.0

Wireless equipment classifica-

tion: Class 2 (2.5 mW)

Supported profiles: A2DP/AVRCP/HFP

Supported codec: aptX®, AAC, SBC

Frequency band: 2.4 GHz band FH-SS

Operating distance: Approx. 10 m (33 ft.) Line of Sight

Prospective communication distance.

Measurement environment: Height 1.0 m (3.3 ft.)

QMicrophone Section

Type: Mono

QTerminal Section

DC IN: 12 V 3 A

AUX input: Stereo, Ø 3.5 mm (1/8”) jack

DC OUT (USB A type): (5 V 1 A) Supply output only

power-on

QAccessories Section

AC Adaptor

Input: (For GN) AC 100 V to 240 V 50/60 Hz

1000 mA

Input: (For P/PC) AC 100 V to 240 V 50/60 Hz

800 mA

Output: DC 12 V 3A

QGeneral

Power supply: DC 12 V 3 A

Internal Battery: 7.2 V (Li-ion: 2900 mAh)

Power consumption: Approx. 16 W

Power consumption in standby

mode: Approx. 0.4 W

Battery Life in Use (Bluetooth®: SBC mode)

Normal Mode: Approx. 14 h*

LP Mode: Approx. 20 h*

Battery Charge Time (25 °C)

(77 °F) Approx. 3 h

Dimensions (W x H x D): 244 mm x 144 mm x 48 mm

(9 5/8” x 5 11/16” x 1 29/32”)

Mass: (Weight) Approx. 930 g (2.05 lbs)

Operating temperature range 0 °C to +40 °C

(+32 °F to +104 °F)

Charge temperature range 10 °C to +35 °C

(+50 °F to +95 °F)

Operating humidity range 35% to 80 % RH

(no condensation)

Note:

• Specifications are subject to change without notice.

• Mass and dimensions are approximate.

• Total harmonic distortion is measured by the digital spectrum ana-

lyzer.

* By the measurement method prescribed in the provisions

5 General/Introduction

5.1. About the power of this unit

5.2. About the DC OUT terminal (USB)

5.3. One-Touch Connection (Connecting by NFC)

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