Panasonic SU-HTB880EB User manual

© Panasonic Corporation 2014. All rights reserved.
Unauthorized copying and distribution is a violation of
law.
PSG1405017CE
A6
Home Theater Audio System
Model No. SU-HTB880EB
SU-HTB880EG
SU-HTB880GN
SU-HTB880PP
SB-HWA880EB
SB-HWA880EG
SB-HWA880GN
SB-HWA880PP
SC-HTB880EB
SC-HTB880EG
SC-HTB880GN
SC-HTB880PP
Product Color: (K)...Black Type
TABLE OF CONTENTS
PAGE PAGE
1 Safety Precautions----------------------------------------------- 3
1.1. General Guidelines---------------------------------------- 3
1.2. Caution for AC Cord (For EB only)-------------------- 4
1.3. Before Repair and Adjustment ------------------------- 5
1.4. Protection Circuitry ----------------------------------------5
1.5. Caution For Fuse Replacement ------------------------5
1.6. Safety Part Information -----------------------------------6
2Warning--------------------------------------------------------------8

2
2.1. Prevention of Electrostatic Discharge (ESD)
to Electrostatically Sensitive (ES) Devices ----------8
2.2. Service caution based on Legal restrictions
(Lead Free Solder, (PbF))--------------------------------9
3 Service Navigation---------------------------------------------- 10
3.1. Service Information -------------------------------------- 10
4 Specifications ---------------------------------------------------- 11
5 Location of Controls and Components------------------ 12
5.1. Main Unit & Active Subwoofer Key Button
Operations ------------------------------------------------- 12
5.2. Remote Control Key Button Operations------------ 13
6 Service Mode----------------------------------------------------- 14
6.1. Service Mode Table 1 ----------------------------------- 14
6.2. Service Mode Table 2 ----------------------------------- 15
6.3. Service Mode Software Version Check Table----- 16
6.4. HDMI Version Display Table--------------------------- 17
6.5. Bluetooth Version Display Table---------------------- 17
6.6. Service Mode Model Name Display Table --------- 17
6.7. Service Mode Region Display Table ---------------- 17
6.8. Service Function Error Code -------------------------- 18
7 Troubleshooting Guide---------------------------------------- 19
8 Disassembly and Assembly Instructions--------------- 20
8.1. Service Fixture & Tools --------------------------------- 20
8.2. Disassembly flow chart --------------------------------- 21
8.3. Type of Screws ------------------------------------------- 22
8.4. Main Parts Location Diagram ------------------------- 23
8.5. Disassembly of Main Unit (SU-HTB880) ---------- 24
8.6. Disassembly of Active Subwoofer (SB-
HWA880) --------------------------------------------------- 37
9 Service Position------------------------------------------------- 41
9.1. Main Unit (SU-HTB880) -------------------------------- 41
9.2. Active Subwoofer (SB-HWA880)--------------------- 45
10 Block Diagram --------------------------------------------------- 47
10.1. Main Unit (SU-HTB880) -------------------------------- 47
10.2. Active Subwoofer (SB-HWA880)--------------------- 52
11 Wiring Connection Diagram--------------------------------- 54
11.1. Main Unit (SU-HTB880) -------------------------------- 54
11.2. Active Subwoofer (SB-HWA880)--------------------- 55
12 Schematic Diagram--------------------------------------------- 57
12.1. Schematic Diagram Notes ----------------------------- 57
12.2. Main Unit (SU-HTB880) -------------------------------- 59
12.3. Active Subwoofer (SB-HWA880)--------------------- 76
13 Printed Circuit Board ------------------------------------------ 81
13.1. Main Unit (SU-HTB880) ------------------------------- 81
13.2. Active Subwoofer (SB-HWA880) -------------------- 87
14 Voltage and Waveform Measurement -------------------- 89
14.1. Voltage Measurement----------------------------------- 89
15 Exploded View and Replacement Parts List----------- 99
15.1. Cabinet Parts Location-1 (SU-HTB880) ------------ 99
15.2. Cabinet Parts Location-2 (SU-HTB880) ---------- 100
15.3. Cabinet Parts Location-3 (SU-HTB880) ---------- 101
15.4. Cabinet Parts Location (SB-HWA880)------------ 102
15.5. Packaging (SC-HTB880) ----------------------------- 103
15.6. Mechanical Replacement Parts List --------------- 105
15.7. Electrical Replacement Parts List ------------------ 107

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.
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. 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 1MΩand 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 1.5kΩ, 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. 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.
Figure 1-1

4
1.2. Caution for AC Cord (For EB only)

5
1.3. Before Repair and Adjustment
1.3.1. Main Unit (SU-HTB880)
Disconnect AC power, discharge unit AC Capacitors (C5700, C5701, C5702, C5703, C5704 and C5705) through a 10W, 1W resis-
tor to ground.
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 120 V, 60 Hz during power on at no signal with volume minimum, should be ~150 mA (For PP only).
• Current consumption at AC 220 V ~ 240 V, 50 Hz during power on at no signal with volume minimum, should be ~200 mA (For
EB/EG/GN only).
1.3.2. Active Subwoofer (SB-HWA880)
Disconnect AC power, discharge unit AC Capacitors (C5700, C5701, C5702, C5703, C5704 and C5705) through a 10W, 1W resis-
tor to ground.
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 120 V, 60 Hz during power on at link with volume minimum, (Selector : BD/DVD mode) should be
~200 mA (For PP only).
• Current consumption at AC 220 V ~ 240 V, 50 Hz during power on at link with volume minimum, (Selector : BD/DVD mode)
should be ~200 mA (For EB/EG/GN only).
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.
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.
1.5. Caution For Fuse Replacement

6
1.6. 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.
1.6.1. Main Unit (SU-HTB880)
Safety Ref. No. Part No. Part Name & Description Remarks
14 RGN3455-K1 NAME PLATE EB,EG
14 RGN3456-K NAME PLATE PP
14 RGN3458-K1 NAME PLATE GN
39 RMZ1443A SMPS PC SHEET
40 RMZ1455 MAIN PC SHEET
PCB2 REP5073B SMPS P.C.B. (RTL)PP
PCB2 REP5073C SMPS P.C.B. (RTL)EB, EG, GN
DZ5701 ERZV10V511CS ZNR (E.S.D)
L5702 G0B922G00004 LINE FILTER
L5703 G0B203G00005 LINE FILTER
T5701 G4DYA0000573 TRANSFORMER
PC5720 B3PBA0000579 PHOTO COUPLER
PC5760 B3PBA0000579 PHOTO COUPLER
F1 K5G312Y00007 FUSE
P5701 K2AA2B000011 AC INLET EB,EG,GN
P5701 K2AB2B000007 AC INLET PP
R5700 ERJ8GEYJ105V 1M 1/4W
R5701 ERJ8GEYJ105V 1M 1/4W
R5710 ERJ8GEYJ105V 1M 1/4W
C5700 F1BAF1020020 1000pF
C5701 F0CAF104A105 0.1uF
C5702 F0CAF104A105 0.1uF
C5703 F0CAF104A105 0.1uF
C5704 F1BAF471A013 470pF
C5705 F1BAF471A013 470pF

7
1.6.2. Active Subwoofer (SB-HWA880)
1.6.3. System (SC-HTB880)
Safety Ref. No. Part No. Part Name & Description Remarks
65 RGN3442-K SPEC LABEL EB, EG
65 RGN3444-K SPEC LABEL GN
65 RGN3446-K SPEC LABEL PP
75 REX1703 1P RED WIRE (SMPS - SW AC INLET)
77 REX1704 1P BLACK WIRE (SMPS - SW AC INLET)
PCB2 REP5036BB SW AC INLET P.C.B. (RTL) PP
PCB2 REP5036CB SW AC INLET P.C.B. (RTL) EB, EG, GN
DZ5701 ERZV10V511CS ZNR
L5702 G0B203G00005 LINE FILTER
L5703 G0B612H00005 INDUCTOR PP
L5703 G0B203G00005 INDUCTOR EB, EG, GN
T5701 G4DYA0000441 TRANSFORMER PP
T5701 G4DYA0000485 TRANSFORMER EB, EG, GN
T5751 G4DYA0000592 TRANSFORMER
PC5701 B3PBA0000579 PHOTO COUPLER
PC5720 B3PBA0000579 PHOTO COUPLER
PC5799 B3PBA0000579 PHOTO COUPLER
F1 K5G312Y00007 FUSE
P5701 K2AA2B000011 AC INLET EB, EG, GN
P5701 K2AB2B000007 AC INLET PP
R5700 ERJ8GEYJ105V 1M 1/4W EB, EG, GN
R5700 ERJ8GEYJ155V 1.5M 1/4W PP
R5701 ERJ8GEYJ105V 1M 1/4W EB, EG, GN
R5701 ERJ8GEYJ155V 1.5M 1/4W PP
R5710 ERJ8GEYJ105V 1M 1/4W EB, EG, GN
R5710 ERJ8GEYJ155V 1.5M 1/4W PP
C5700 F1BAF1020020 1000pF
C5701 F0CAF104A105 0.1uF
C5702 F0CAF104A105 0.1uF
C5703 F0CAF104A105 0.1uF
C5704 F1BAF1020020 1000pF PP
C5704 F1BAF471A013 470pF EB, EG, GN
C5705 F1BAF1020020 1000pF PP
C5705 F1BAF471A013 470pF EB, EG, GN
C5706 F1BAF1020020 1000pF
Safety Ref. No. Part No. Part Name & Description Remarks
A2 K2CB2CB00022 AC CORD PP
A2 K2CJ2YY00093 AC CORD GN
A2 K2CQ2YY00119 AC CORD EG
A2 K2CT2YY00097 AC CORD EB
A3 RQT9903-Y O/I BOOK (En/Cf) PP
A3 RQT9904-1B O/I BOOK (En) EB,GN
A3 RQT9905-1D O/I BOOK (Ge/Fr/It) EG
A3 RQT9906-1E O/I BOOK (Sw/Da/Du) EG
A3 RQT9907-1H O/I BOOK (Sp/Fi) EG

8
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).

9
2.2. Service caution based on Legal restrictions (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)

10
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.