Panasonic SA-HR45E User manual

nAMPLIFIER SECTION
RMS output power: Dolby Digital Mode
T.H.D. 10% (Each channel driven)
1 kHz front CH
150 W per channel (6 Ω)
1 kHz surround CH
80 W per channel (4 Ω)
1 kHz center CH
80 W per channel (4 Ω)
Total RMS output power 540 W
RMS output power: STEREO Mode
T.H.D. 10%
1 kHz front CH
150 W per channel (6 Ω)
Total harmonic distortion
Half power at 1 kHz (Front CH) 0.5% (6 Ω)
Input sensitivity
TV, DVR/DVD-P, GAME/AUX 450 mV, IHF’66
MUSIC PORT 250 mV, IHF’66
S/N at rated power (6 Ω)
TV, DVR/DVD-P, GAME/AUX
80 dB (85 dB, IHF’66)
MUSIC PORT
70 dB (85 dB, IHF’66)
Input impedance
TV, DVR/DVD-P, GAME/AUX, MUSIC PORT
47 kΩ
Tone controls
SA-HR45E
SA-HR45EG
Colour
(S).......................Silver Type
(K).......................Black Type
BASS 50 Hz, +10 to -10 dB
TREBLE 20 kHz, +10 to -10 dB
Load impedance
Front (L/R) 6Ωto 8 Ω
Surround (L/R) 4Ωto 8 Ω
Center 4Ωto 8 Ω
Digital input
OPTICAL 2
COAXIAL 1
nFM TUNER SECTION
Frequency range
87.50 MHz to 108.00 MHz
Sensitivity
S/N 30 dB 1.9 µV/75 Ω
S/N 26 dB 1.8 µV/75 Ω
S/N 20 dB 1.6 µV/75 Ω
IHF usable sensitivity (IHF’58) 2.2 µV/75 Ω
IHF 46 dB stereo quieting sensitivity 22 µV/75 Ω
Total Harmonic distortion
MONO 0.2%
STEREO 0.3%
S/N
MONO 60 dB (71 dB, IHF)
STEREO 58 dB (65 dB, IHF)
Frequency response
20 Hz to 15 kHz, +1 dB, -2 dB
Image rejection at 98 MHz 40 dB
IF rejection at 98 MHz 70 dB
AV Control Receiver
Specification
ORDER NO. MD0707047CE

Stereo separation (1 kHz) 40 dB
Antenna terminal 75 Ω(unbalanced)
nAM TUNER SECTION
Frequency range
522 kHz to 1611 kHz (9 kHz steps)
530 kHz to 1620 kHz (10 kHz steps)
Sensitivity 500 µV/m
Selectivity (at 999 kHz) 30 dB
nGENERAL
Power supply
AC 230 V to 240 V, 50 Hz
Power consumption 110 W
Dimensions (W × H × D)
1 Safety Precautions 3
2 Prevention of Electro Static Discharge (ESD) to
Electrostatically Sensitive (ES) Devices 4
3 About Lead Free Solder (PbF) 5
4 Accessories 6
5 Operation Procedures 7
6 Self Diagnosis and Special Mode Setting 12
7 Assembling and Disassembling 15
8 Service Positions 25
9 Voltage Measurement and Waveform Chart 29
430 mm x 105 mm x 385 mm
Mass 3.8 kg
Power consumption in standby mode: 1W
Notes:
1.Specifications are subject to change without notice.
2.Total harmonic distortion is measured by the digital spectrum
analyzer.
* Manufactured under license from Dolby Laboratories.
“Dolby”, “Pro Logic” and the double-D symbol are trademarks of
Dolby Laboratories.
** Manufactured under license from Digital Theater System.
“DTS” and “DTS Digital Surround” are trademarks of Digital Theater
System.
10 Wiring Connection Diagrams 37
11 Block Diagram 39
12 Notes of Schematic Diagram 41
13 Schematic Diagram 43
14 Printed Circuit Board Diagram 53
15 Illustrations of IC’s, Transistors & Diodes 61
16 Terminal Functions of Integrated Circuits 62
17 Exploded Views 63
18 Replacement Parts List 65
CONTENTS
Page Page
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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, see to it that all the protective devices such as insulation barriers, insulation papers shields are properly
installed.
3.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 5.2Ω.
When the exposed metal does not have a return path to the chassis, the reading must be .
1.1.2. Leakage Current Hot Check (See Figure 1.)
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.
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.
Fig. 1
1.2. Before Repair and Adjustment
Disconnect AC power, discharge Power Supply Capacitors C707 & C1706 through a 10 Ω, 1W resistor to ground.
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 230 V - 240 V, 50Hz in NO SIGNAL mode should be 200 ~ 800 mA .
1.3. Protection Circuitry
The protection circuitry may have operated if either of the following conditions is noticed:
*No sound is heard when the power is supplied.
*Sound stops during a performance.
The functions of this circuitry is to prevent circuitry damage, 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 procedure outlined below:
1.Press the STANDBY /ON button, switch to STANDBY mode.
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2.Determine the cause of the problem and correct it.
3.Press the STANDBY /ON button once again, supply the power.
Note:
When the protection circuitry functions, the unit will not operate unless the STANDBY /ON button is first switched STANDBY
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.
Table 1
Reference No. Part No. Part Name & Description Remarks
DZ701 ERZV10V511CS ZENER [M]
TH701 D4CAC8R00002 THERMISTOR [M]
L701 ELF18N067E COMMON MODE COIL [M]
L702 ELF21N015E COMMON MODE COIL [M]
L703 ELF21N015E COMMON MODE COIL [M]
T701 ETS48AA196AC MAIN TRANSFORMER [M]
T721 ETS19AA1X6AG BACKUP TRANSFORMER [M]
T800 ETS28AU379AC SUB TRANSFORMER [M]
PC701 B3PBA0000402 PHOTO COUPIER [M]
PC721 B3PBA0000402 PHOTO COUPIER [M]
RY721 K6B1AEA00003 PC POWER RELAY [M]
F1 K5D402BLA013 FUSE T4AL 250V [M]
P701 K2AA2B000015 AC INLET [M]
A2 K2CQ2CA00007 AC CORD [M]
C701 ECQU2A104MLC 0.1 [M]
C703 F1BAF1020020 1000P [M]
C704 F1BAF1020020 1000P [M]
C705 F1BAF1020020 1000P [M]
C706 ECQU2A104MLC 0.1 [M]
C714 F1BAF1020020 1000P 10V [M]
C732 F1BAF1020020 1000P [M]
C736 FIBAF471A013 470P [M]
C737 FIBAF471A013 470P [M]
2 Prevention of Electro Static Discharge (ESD) to
Electrostatically Sensitive (ES) Devices
Some semiconductor (solid state) devices can be damaged easily by electricity. Such components commonly are called
Electrostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field-effect transistors and
semiconductor “chip” components. The following techniques should be used to help reduce the incidence of component damage
caused by electro static discharge (ESD).
1.Immediately before handling any semiconductor component or semiconductor-equiped 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 equiped with ES devices, place the assembly on a conductive surface such as aluminium
foil, to prevent electrostatic charge build up 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 remover device. Some solder removal devices not classified as “anti-static (ESD protected)” can
generate electrical charge 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, aluminium foil or
comparable conductive material).
7.Immediately before removing the protective material from the leads of a replacement ES device, touch the protective material
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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 body 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) sufficient to
damage an ES device).
3 About Lead Free Solder (PbF)
3.1. Service caution based on legal restrictions
3.1.1. 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
The letter of “PbF” is printed either foil side or components side on the PCB using the lead free solder.
(See right figure)
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%
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4 Accessories
Note: Refer to Replacement Part list (Section 18) for the part number.
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5 Operation Procedures
5.1. Remote Control Operation
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5.2. Main Unit Operation
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5.3. Basic operations
5.4. Main Unit Connection (SA-HR45)
5.4.1. Speaker setup
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5.4.2. Home theater connections
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6 Self Diagnosis and Special Mode Setting
This unit is equipped with function for checking and inspecting namely: Self-Diagnostic and Test Mode.
6.1. Service Mode Summary Table
The service mode can be activated by pressing various button combination on the main unit and remote control unit. Below is the
summary for the various modes for checking:
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6.2. Doctor & Service Mode (Special Mode setting)
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6.2.1. Inspection & Checking Items
After entering into doctor mode, the main unit can be used for checking of various items using the remote control.
6.3. Error Code Table
Self- Diagnosis Function provides information on any problems occuring for the units and its respective parts by displaying error
codes.
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7 Assembling and Disassembling
7.1. Caution
“Attention Servicer”
Some chassis components may have sharp edges. Be careful when disassembling and servicing.
1.This section describes procedures for checking the operation of the major printed circuit boards and replacing the main
components.
2.For reassembly after operation checks or replacement, reverse the respective procedures.
Special reassembly procedures are described only when required.
3.Select items from the following index when checks or replacement are required.
4.Refer to the Parts No. on the page of “Replacement Parts List” (Section 18), if necessary.
Below is the list of disassembly procedures
• Disassembly of Top Cabinet
• Disassembly of Rear Panel
• Disassembly of Front Panel
• Disassembly of Panel P.C.B., Music Port P.C.B. & Volume P.C.B.
• Disassembly of Main P.C.B.
• Disassembly of DSP P.C.B.
• Disassembly of AC Inlet P.C.B.
• Disassembly of Power P.C.B.
• Disassembly of Digital Amp P.C.B.
Below shown is the part number of different screws types used:
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7.2. Disassembly Flow Chart
The following chart is the procedure for disassembling the casing and inside parts for internal inspection when carrying out the
servicing.
To assemble the unit, reverse the steps shown in the chart as below.
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7.3. Main Components and P.C.B Locations.
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7.4. Disassembly of Top Cabinet
Step 1: Remove 1 screw at each side of the top cabinet.
Step 2: Remove 2 screws at rear panel.
Step 3:Lift the sides of the top cabinet outwards.
Step 4: Push the top cabinet in the direction of arrows to
release the catches.
7.5. Disassembly of Rear Panel
• Follow the (Step 1) -(Step 4) of item 7.4. - Disassembly of
Top Cabinet.
Step 1: Remove 11 screws at rear panel.
Step 2: Detach wire (CN5500) at Digital Amp P.C.B..
Step 3: Release 2 catches from the side and pull Rear Panel
backward as shown.
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7.6. Disassembly of Front Panel
• Follow the (Step 1) -(Step 4) of item 7.4. - Disassembly of
Top Cabinet.
Step 1: Detach the wires on connections (CN400, CN402 &
CN401) on Main P.C.B. and (CN801) at Power P.C.B..
Step 2: Release 3 catches.
Step 3: Release 2 catches.
Step 4: Push forward the Front Panel as arrow shown.
• Assembly of Front Panel.
Note: Make sure all the guides are fix to the respective
locations as arrow shown.
7.7. Disassembly of Panel P.C.B.,
Music Port P.C.B. & Volume
P.C.B.
• Follow the (Step 1) -(Step 4) of item 7.4. - Disassembly of
Top Cabinet.
• Follow the (Step 1) -(Step 4) of item 7.6. - Disassembly of
Front Panel.
Step 1: Remove volume knob as shown in the picture.
Step 2: Remove 2 screws grounding wires as picture shown.
Caution:
Remember to screw the 2 grounding wires during assembly.
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Step 3: Remove 3 screws as picture shown.
Step 4: Release the 2 catches and lift up the front Plate.
• Disassembly of Panel P.C.B. and Music Port P.C.B.
Step 5: Remove 9 screws at Panel P.C.B..
Step 6: Remove 2 screws at Music Port P.C.B..
• Disassembly of Volume P.C.B.
Step 7: Remove 3 screws at Volume P.C.B..
Step 8: Release 2 clutches.
7.8. Disassembly of Main P.C.B.
• Follow the (Step 1) -(Step 3) of item 7.4. - Disassembly of
Top Cabinet.
Step 1: Remove 4 screws at Rear Panel.
Step 2: Remove 5 screws on Main P.C.B..
Step 3: Detach wires at connectors (CN400, CN402, CN401,
CN800A & CN802A) on Main P.C.B..
Step 4: Detach FFC cables at connectors (CN904A, CN200A &
CN403A) on Main P.C.B..
Step 5: Detach wires at connectors (CN405 & CN906) on DSP
P.C.B..
Step 6: Lift up and remove the Main P.C.B. as picture shown.
Caution: Please handle the JACKs at Rear Panel with care
while removing Main P.C.B..
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