Panasonic SA-PM45E User manual

nAmplifier Section
RMS OUTPUT POWER both channel driven simultaneously
10% Total harmonic distortion 20 W per channel (4 Ω)
Input Impedance
MUSIC PORT 250 mV 12 kΩ
Output Impedance
HEADPHONE 16 to 32 Ω
Phone jack
Terminal Stereo, 3.5 mm
Music port jack
Terminal Stereo, 3.5 mm
nFM Tuner Section
Frequency range 87.50 to 108.00 MHz
(50 kHz step)
Sensitivity 0.10 µV (IHF)
S/N 30 dB 1.20 µV
A
ntenna terminals 75 Ω(unbalanced)
Preset station FM 20 stations
AM 15 stations
nAM Tuner Section
Frequency range 522 to 1629 kHz (9 kHz step)
520 to 1630 kHz (10 kHz step)
Sensitivity
S/N 20 dB (at 999 kHz) 1000 µV/m
nCassette Deck Section
Track system 4-track, 2-channel
©2007 Matsushita Electric Industrial Co. Ltd.. All
rights reserved. Unauthorized copying and
distribution is a violation of law.
SA-PM45E
SA-PM45EG
SA-PM45EE
Colour
(K)... Black Type
Heads
Record/playback Solid permalloy head
Erasure Double gap ferrite head
Motor DC servo motor
Recording system AC bias 100 kHz
Erase system AC erase 100 kHz
Tape speed 4.8 cm/s
Overall frequency response (+3, -6 dB) at DECK OUT
Normal 35 Hz to 14 kHz
S/N RATIO 50 dB (A weighted)
Wow and flutter 0.08% (WRMS)
Fast-forward and rewind time Approx. 120 seconds with C-60
cassette tape
nCD Section
Disc played [8 cm or 12 cm]
(1) CD-Audio (CD-DA)
(2) CD-R/RW (CD-DA, MP3 formatted disc)
(3) MP3
Sampling frequency
CD 44.1 kHz
MP3 32 kHz, 44.1 kHz, 48 kHz
Bit rate
MP3 32 kbps to 384 kbps
Decoding 16/20/24 bit linear
Pickup
Wavelength 785 nm
CD Stereo System
Specification
ORDER NO. MD0703003CE

Beam source Semiconductor laser
Laser power CLASS 1
A
udio output (Disc)
Number of channels 2 Channel
Frequency response 20 Hz to 20 kHz (+1, -2 dB)
Wow and flutter Below measurable limit
Digital filter 8fs
D/A converter MASH (1 bit DAC)
nUSB Section
Playable USB Storage Media
1. HDD
2. USB MP3 player/Digital audio player
3. USB Thumbdrives
Supported audio file format
MP3
USB memory port
Maximum current 500mA
Bit rate
MP3 32 kbps to 320 kbps
A
udio output (MP3)
Number of channels 2 channel
Frequency response (MP3) 20 Hz to 20 kHz
1 Safety Precautions 4
1.1. GENERAL GUIDELINES 4
1.2. Before Repair and Adjustment 5
1.3. Protection Circuitry 5
1.4. Safety Part Information 5
2 Prevention of Electro Static Discharge (ESD) to
Electrostatically Sensitive (ES) Devices 6
3 Precaution of Laser Diode 7
4 Handling Precautions For Traverse Deck 8
5 Handling the Lead free Solder 9
5.1. General description about Lead Free Solder (PbF) 9
6 Accessories 10
7 Operation Procedures 11
7.1. Main Unit Key Buttons Operation 11
7.2. Remote Control Key Buttons Operation 12
7.3. Disc Information 12
8 Self diagnosis and special mode setting 13
8.1. Service Mode Summary Table 13
8.2. Service Mode Table 13
8.3. Cassette Mechanism Self-Diagnostic Mode 19
8.4. Error Code Table 19
9 Assembling and Disassembling 21
9.1. Caution 21
nGeneral
Power supply AC 230 V, 50 Hz
Power consumption 63 W
Dimensions (W x H x D) 164 mm x 227 mm x 314 mm
Mass 3.4 kg
Operating temperature range +5 to +35°C
Operating humidity range 5 to 90 % RH (no condensation)
Power consumption in standby
mode
0.6 W (approx.)
Notes :
1. Specifications are subject to change without notices. Mass and
dimensions are approximate.
2. Total harmonic distortion is measured by the digital spectrum
analyzer.
nSystem : SC-PM45E-K Music center: SA-PM45E-K
Speaker: SB-PM45EG-K
nSystem : SC-PM45EG-K Music center: SA-PM45EG-K
Speaker: SB-PM45EG-K
nSystem : SC-PM45EE-K Music center: SA-PM45EE-K
Speaker: SB-PM45EG-K
nSystem : SC-PM45EG-S Music center: SA-PM45EG-K
Speaker: SB-PM45EG-S
9.2. Disassembly flow chart 22
9.3. Main Parts Location Diagram 23
9.4. Disassembly of Side Panel (L / R) 24
9.5. Disassembly of Top Cabinet Unit 24
9.6. Disassembly of Deck Mechanism and Tape Eject P.C.B
24
9.7. Disassembly of CD Lid 25
9.8. Disassembly of Front Panel 26
9.9. Disassembly of USB P.C.B 27
9.10. Disassembly of Panel P.C.B, Headphone P.C.B & Music
Port P.C.B 28
9.11. Disassembly of Rear Panel 29
9.12. Disassembly of Main P.C.B 29
9.13. Replacement of the Power IC 29
9.14. Disassembly of Transformer P.C.B 30
9.15. Disassembly of CD Mechanism 30
9.16. Disassembly of Cassette Lid 31
9.17. Disassembly of Traverse Unit, Driving Gear, and Cam
Gear 32
9.18. Disassembly of deck mechanism 36
9.19. Handling of cassette tape jam 38
10 Service Positions 39
10.1. Check and Repair of Deck, Deck Mechanism & Tape Eject
P.C.B 39
CONTENTS
Page Page
2
SA-PM45E / SA-PM45EG / SA-PM45EE

10.2. Check and Repair of Panel, Headphone & Music Port
P.C.B 40
10.3. Check and Repair of Transformer P.C.B 41
10.4. Check and Repair of Main P.C.B 42
10.5. Check and Repair of CD Servo P.C.B 43
10.6. Check and Repair of USB P.C.B (Side A) 44
10.7. Check and Repair of USB P.C.B (Side B) 45
11 Procedure for Checking Operation of Individual Parts of Deck
Mechanism Unit 46
11.1. Operation Check with Cassette Tape 46
11.2. Operation Check without Cassette Tape 46
12 Measurement And Adjustments 48
12.1. Cassette Deck Section 48
13 Voltage Measurement & Waveform Chart 50
13.1. Voltage Measurement 50
13.2. Waveform Chart 54
14 Wiring Connection Diagram 57
15 Block Diagram 59
15.1. CD SERVO/ OPTICAL PICKUP UNIT 59
15.2. DECK/ DECK MECHANISM/ TAPE EJECT/
TRANSFORMER 60
15.3. MAIN (1/2)/ USB MODULE 61
15.4. MAIN (2/2)/ PANEL 62
16 Notes of Schematic Diagram 63
17 Schematic Diagram 65
17.1. CD SERVO CIRCUIT 65
17.2. MAIN CIRCUIT 66
17.3. PANEL CIRCUIT 70
17.4. TRANSFORMER CIRCUIT, DECK MECHANISM
CIRCUIT, TAPE EJECT CIRCUIT 71
17.5. DECK CIRCUIT 72
17.6. USB CIRCUIT 73
18 Printed Circuit Board Diagrams 75
18.1. CD SERVO P.C.B, DECK P.C.B, DECK MECHANISM
P.C.B and TAPE EJECT P.C.B 75
18.2. MAIN P.C.B 76
18.3. PANEL P.C.B, HEADPHONE P.C.B and MUSIC PORT
P.C.B 77
18.4. TRANSFORMER P.C.B and USB P.C.B 78
19 Illustration of IC's, Transistors and Diodes 79
20 Terminal Function of IC's 80
20.1. IC7001 (MN6627954MA) IC SERVO
PROCESSOR/DIGITAL SIGNAL PROCESSOR/DIGITAL
FILTER D/A CONVERTER 80
20.2. IC7002 (BA5948FPE2) IC 4CH Drive 81
20.3. IC803 (MN101EF16ZXW) MICROPROCESSOR 81
21 Exploded Views 83
21.1. Cabinet Parts Location 83
21.2. Deck Mechanism Parts Location (RAA4403-S) & CD Unit
Parts Location 84
21.3. Packaging 85
22 Replacement Parts List 87
3
SA-PM45E / SA-PM45EG / SA-PM45EE

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
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. 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
4
SA-PM45E / SA-PM45EG / SA-PM45EE

1.2. Before Repair and Adjustment
Disconnect AC power, discharge Power Supply Capacitors C501, C502, C503, C910, C911, C915 and C923 through a 10Ω,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 230V, 50 Hz in NO SIGNAL mode (volume min) should be ~150 mA.
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 & Replacement Parts List. It is essential that these critical partsshould be replaced with manufacturer’s
specified parts to prevent shock, fire or other hazards. Do not modify the original designwithout permission of manufacturer.
Table 1
Reference No. Part No. Part Name & Description Remarks
A2 K2CQ2CA00002 AC CORD [M]
F1 K5D631BLA012 FUSE [M]
JK600 K2AA2B000015 JK AC INLET [M]
T600 G4CYAYY00137 SUB TRANSFORMER [M]
T601 G4CYAYY00139 TRANSFORMER [M]
L600 G0B371HA0005 LINE FILTER [M]
Z600 ERZV10V511CS ZENER [M]
RL600 K6B1AEA00015 POWER RELAY [M]
FP352 K5G502A00039 FUSE PROTECTOR [M]
FP601 K5G502A00039 FUSE PROTECTOR [M]
FP950 K5G102AA0002 FUSE PROTECTOR [M]
5
SA-PM45E / SA-PM45EG / SA-PM45EE

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 removal 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
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)
sufficient to damage an ES device).
6
SA-PM45E / SA-PM45EG / SA-PM45EE

3 Precaution of Laser Diode
Caution :
This product utilizes a laser diode with the unit turned "ON", invisible laser radiation is emitted from the pick up lens.
Wavelength : 780 nm
Maximum output radiation power from pick up : 100 µW/VDE
Laser radiation from pick up unit is safety level, but be sure the followings:
1. Do not disassemble the optical pick up unit, since radiation from exposed laser diode is dangerous.
2. Do not adjust the variable resistor on the pick up unit. It was already adjusted.
3. Do not look at the focus lens using optical instruments.
4. Recommend not to look at pick up lens for a long time.
ACHTUNG :
Dieses Produkt enthält eine Laserdiode. Im eingeschalteten Zustand wird unsichtbare Laserstrahlung von der Lasereinheit
abgestrahlt.
Wellenlänge : 780nm
Maximale Strahlungsleistung der Lasereinheit :100 µW/VDE
Die Strahlung an der Lasereinheit ist ungefährlich, wenn folgende Punkte beachtet werden:
1. Die Lasereinheit nicht zerlegen, da die Strahlung an der freigelegten Laserdiode gefährlich ist.
2. Den werkseitig justierten Einstellregler der Lasereinhit nicht verstellen.
3. Nicht mit optischen Instrumenten in die Fokussierlinse blicken.
4. Nicht über längere Zeit in die Fokussierlinse blicken.
ADVARSEL :
I dette a apparat anvendes laser.
CAUTION!
THIS PRODUCT UTILIZES A LASER.
USE OF CONTROLS OR ADJUSTMENTS OR PERFORMANCE OF PROCEDURES OTHER THAN THOSE SPECIFIED HEREIN MAY RESULT
IN HAZARDOUS RADIATION EXPOSURE.
nUse of Caution Labels
7
SA-PM45E / SA-PM45EG / SA-PM45EE

4 Handling Precautions For Traverse Deck
The laser diode in the traverse deck (optical pickup) may break down due to potential difference caused by static electricity of
clothes or human body. So, be careful of electrostatic breakdown during repair of the traverse deck (optical pickup).
· Handling of traverse deck (optical pickup)
1. Do not subject the traverse deck (optical pickup) to static electricity as it is extremely sensitive to electrical shock.
2. To prevent the breakdown of the laser diode, an antistatic shorting pin is inserted into the flexible board (FFC board).
3. Take care not to apply excessive stress to the flexible board (FFC board). When removing or connecting the short pin, finish
the job in as short time as possible. (Fig 4.1)
4. Do not turn the variable resistor (laser power adjustment). It has already been adjusted.
· Grounding for electrostatic breakdown prevention
1. Work table grounding. (Fig 4.2)
Use the anti-static wrist strap to discharge the static electricity from your body.
2. Work table grounding. (Fig 4.2)
Put a conductive material (sheet) or steel sheet on the area where the traverse deck (optical pickup) is place, and ground
the sheet.
Caution:
The static electricity of your clothes will not be grounded through the wrist strap. So, take care not to let your clothes touch the
traverse deck (optical pickup).
Caution when replacing the Traverse Deck
The traverse deck has a short point shorted with solder to protect the laser diode against electrostatics breakdown. Be sure to
remove the solder from the short point before making connections.
(Fig 4.1)
(Fig 4.2)
8
SA-PM45E / SA-PM45EG / SA-PM45EE

5 Handling the Lead free Solder
5.1. 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%
9
SA-PM45E / SA-PM45EG / SA-PM45EE

6 Accessories
Note : Refer to Packing Materials & Accessories Parts List (Section 22) for the part number.
Remote Control
AC Cord
FM Antenna
AM Loop Antenna
10
SA-PM45E / SA-PM45EG / SA-PM45EE