Panasonic SB-WA500EB / SB-WA500EE / SB-WA500EG / SB-WA500GN / SB-WA500GS / SB-WA500PH Service Manual ▷ View online
PSG1007019CE
Wireless Subwoofer Unit
Model No.
SB-WA500EB
SB-WA500EE
SB-WA500EG
SB-WA500GN
SB-WA500GS
SB-WA500PH
SB-WA500EE
SB-WA500EG
SB-WA500GN
SB-WA500GS
SB-WA500PH
Product Color: (K)...Black Type
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
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 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
4 Specifications ----------------------------------------------------- 8
5 Location of Controls and Components ------------------- 9
5 Location of Controls and Components ------------------- 9
5.1. Main Unit Key Button Operations---------------------- 9
6 Self diagnostic and special mode setting---------------10
6.1. Service Mode ----------------------------------------------10
7 Disassembly and Assembly Instructions ---------------11
7.1. Disassembly flow chart --------------------------------- 12
7.2. Main Parts Location Diagram ------------------------- 12
7.3. Disassembly of Side Panel Unit --------------------- 13
7.4. Disassembly of Passive Radiator ------------------- 14
7.5. Disassembly of Woofer Speaker (SP61) ---------- 15
7.6. Disassembly of Amp Module Assembly ----------- 16
7.7. Disassembly of AC Inlet P.C.B. ---------------------- 17
7.8. Disassembly of SMPS Module P.C.B. ------------- 17
7.9. Disassembly of Digital Receiver (RX) Module
7.2. Main Parts Location Diagram ------------------------- 12
7.3. Disassembly of Side Panel Unit --------------------- 13
7.4. Disassembly of Passive Radiator ------------------- 14
7.5. Disassembly of Woofer Speaker (SP61) ---------- 15
7.6. Disassembly of Amp Module Assembly ----------- 16
7.7. Disassembly of AC Inlet P.C.B. ---------------------- 17
7.8. Disassembly of SMPS Module P.C.B. ------------- 17
7.9. Disassembly of Digital Receiver (RX) Module
P.C.B. ------------------------------------------------------- 18
7.10. Disassembly of ID Switch P.C.B. and D-Amp
P.C.B. ------------------------------------------------------- 19
7.11. Replacement of Switch Regulator IC (IC5200)
---------------------------------------------------------------- 20
8 Service Position ------------------------------------------------- 23
8.1. Checking and Repairing of D-Amp P.C.B. --------- 23
9 Voltage Measurement & Waveform Chart--------------- 24
2
9.1. D-AMP P.C.B. --------------------------------------------- 24
9.2. Waveform Chart ------------------------------------------ 24
9.2. Waveform Chart ------------------------------------------ 24
10 Illustration of IC’s, Transistors and Diodes ------------ 25
11 Block Diagram --------------------------------------------------- 27
11.1. RECEIVER BLOCK DIAGRAM----------------------- 27
12 Wiring Connection Diagram --------------------------------- 29
13 Schematic Diagram Notes ----------------------------------- 31
14 Schematic Diagram--------------------------------------------- 33
13 Schematic Diagram Notes ----------------------------------- 31
14 Schematic Diagram--------------------------------------------- 33
14.1. D-AMP CIRCUIT ----------------------------------------- 33
14.2. ID SWITCH, AC INLET CIRCUIT -------------------- 34
14.2. ID SWITCH, AC INLET CIRCUIT -------------------- 34
15 Printed Circuit Board ------------------------------------------ 35
15.1. D-AMP, ID SWITCH, AC INLET P.C.B. ------------- 35
16 Exploded View and Replacement Parts List ----------- 37
16.1. Exploded View and Mechanical replacement
Parts List --------------------------------------------------- 37
16.2. Electrical Replacement Parts List -------------------- 41
3
1 Safety Precautions
1.1.
General Guidelines
1. 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.
2. After servicing, ensure that all the protective devices such as insulation barriers, insulation papers shields are properly
installed.
3. After servicing, check for leakage current checks to prevent 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. Using an ohmmeter measure the resistance value, between the jumpered AC plug and each exposed metallic cabinet part on
2. Using an ohmmeter measure the resistance value, 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 5.2Ω. When the exposed metal does not have a return path to the chassis,
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.
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. should the measurement is outside of
the limits specified, there is a possibility of a shock hazard, and the equipment should be repaired and re-checked before it is
returned to the customer.
the limits specified, there is a possibility of a shock hazard, and the equipment should be repaired and re-checked before it is
returned to the customer.
4
1.2.
Before Repair and Adjustment
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.
After repairs are completed, restore power gradually using a variac, to avoid overcurrent.
• Current consumption at AC 220 V - 240 V, at 50 Hz in NO SIGNAL mode, at volume minimum, SEL: DVD, no link, take before
10s should be ~200 mA (For EB/EE/EG/GN).
• Current consumption at AC 110 V - 240 V, at 50/60 Hz in NO SIGNAL mode, at volume minimum, SEL: DVD, no link, take before
10s should be ~200 mA (For GS/PH).
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.
• 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.
1.4.
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 & 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.
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
68
RGNX1166-K
SPEC LABEL
EB/EG
68
RGNX1167-K1
SPEC LABEL
EE
68
RGNX1169-K
SPEC LABEL
GN
68
RGNX1170-K
SPEC LABEL
GS
68
RGNX1183-K
SPEC LABEL
PH
80
N0AE3GJ00004
SMPS MODULE P.C.B.
PCB1
REPX0771C
RX MODULE P.C.B.
PCB2
REPX0770C
TX MODULE P.C.B.
PCB6
REPX0865DD
AC INLET P.C.B.
(RTL)
P5701
K2AAYA000001
AC INLET