Panasonic SA-PM54E / SA-PM54EG Service Manual ▷ View online
n Amplifier Section
RMS OUTPUT POWER both channel driven
10% Total harmonic distortion
1 kHz
50 W per channel (6
Ω)
Input Impedance
Music Port
250 mV 12k
Ω
Output Impedance
Headphone
16
Ω to 32 Ω
Phone jack
Terminal
Stereo, 3.5 mm
Music port input jack
Terminal
Stereo, 3.5 mm
n FM Tuner Section
Frequency range
87.50 MHz to 108.00 MHz
(50 kHz steps)
Sensitivity
0.3 µV (IHF)
S/N 26dB
0.2 µV
Antenna terminals
75
Ω (unbalanced)
Preset station
FM 15 stations
AM 15 stations
n AM Tuner Section
Frequency range
522 kHz to 1629 kHz
(9kHz steps)
520 kHz to 1630 kHz
(10kHz steps)
Sensitivity
S/N 20 dB (at 999 kHz)
900 µV/m
n Cassette Deck Section
2007 Co. .
SA-PM54E
SA-PM54EG
SA-PM54EG
Colour
(K)... Black Type
(K)... Black Type
Track system
4-track, 2-channel
Heads
Record/playback
Solid permoy 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
Over frequency response (+3, -6 dB at DECK OUT)
NORMAL
35 Hz to 14 kHz
S/N RATIO
54 dB (A weighted)
Wow and flutter
0.08% (WRMS)
Fast forward and rewind time
Approx. 120 seconds with C-60
cassette tape
n CD 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. MD0705007CE
Beam source
Semiconductor laser
Laser power
CLASS 1
Audio output (Disc)
Number of channels
2-Channel
Frequency response
20 Hz to 20 kHz (+1dB, -2 dB)
Wow and flutter
Below measurable limit
Digital filter
8 fs
D/A converter
MASH (1 bit DAC)
n General
Power supply
AC 230 V, 50 Hz
Power consumption
125 W
Dimensions (W x H x D)
175 mm x 249 mm x 355 mm
Mass
5.4 kg
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 Operating Instructions Procedures
11
7.1.
Main Unit Key Buttons Operation
11
7.2.
Remote Control Key Buttons Operation
11
7.3.
Disc Information
12
8 Self-Diagnosis & Special Mode Setting
13
8.1.
Special Mode Table
13
8.2.
Error Code Table
22
9 Assembling and Disassembling
24
9.1.
Caution
24
9.2.
Disassembly flow chart
25
9.3.
Main Parts Location Diagram
26
9.4.
Disassembly of Side Panel L & R
27
9.5.
Disassembly of Top Cabinet
27
9.6.
Disassembly of Deck Mechanism and Tape Eject P.C.B.
28
9.7.
Disassembly of Front Panel
28
9.8.
Disassembly of Panel P.C.B.
29
9.9.
Disassembly of Rear Cabinet
30
9.10. Disassembly of Main P.C.B.
30
9.11. Disassembly of Transformer P.C.B.
31
Operating temperature range
+5°C to +35°C
Operating humidity range
5% to 90% RH (no condensation)
Power consumption in standby
mode
mode
0.6 W
Notes :
1. Specifications are subject to change without notices. Mass and
dimensions are approximate.
dimensions are approximate.
2. Total harmonic distortion is measured by the digital spectrum
analyzer.
analyzer.
n System : SC-PM54EG-K
Music center: SA-PM54EG-K
Speaker: SB-PM54EG-M
n System : SC-PM54E-K
Music center: SA-PM54E-K
Speaker: SB-PM54EG-M
9.12. Disassembly of Tuner Pack
31
9.13. Disassembly of Power P.C.B.
32
9.14. Disassembly of CD Mechanism Unit (CR16)
32
9.15. Replacement of CD Lid
33
9.16. Replacement of Cassette Lid
34
9.17. Replacement of the Power IC
35
9.18. Disassembly of Deck Mechanism
36
9.19. Disassembly of CD traverse deck
38
9.20. Replacement of CD Servo P.C.B.
39
9.21. Procedure for removing CD loading mechanism
40
9.22. CR16 mechanism disassembly procedure
40
9.23. CR16 mechanism assembly procedure
47
9.24. Disassembly of traverse mechanism
59
9.25. Handling of cassette tape jam
60
10 Service Positions
61
10.1. Checking and Repairing of Deck, Deck Mechanism and
Tape Eject P.C.B.
61
10.2. Checking and Repairing of Transformer P.C.B.
62
10.3. Checking and Repairing of Main P.C.B.
63
10.4. Checking and Repairing of Panel P.C.B.
64
10.5. Checking and Repairing of CD Servo and CD Loading
P.C.B.
65
10.6. Checking and Repairing of Power P.C.B.
66
11 Procedure for Checking Operation of Individual Parts of Deck
Mechanism Unit
67
11.1. Operation Check with Cassette Tape
67
11.2. Operation Check without Cassette Tape
67
12 Measurement And Adjustments
69
12.1. Cassette Deck Section
69
13 Voltage Measurement & Waveform Chart
71
13.1. Voltage Measurement
71
CONTENTS
Page
Page
2
SA-PM54E / SA-PM54EG
13.2. Waveform Chart
75
14 Wiring Connection Diagram
77
15 Block Diagram
79
16 Notes of Schematic Diagram
83
16.1. Notes of Schematic Diagram
83
17 Schematic Diagram
85
17.1. CD SERVO CIRCUIT
85
17.2. MAIN CIRCUIT
86
17.3. PANEL CIRCUIT
88
17.4. DECK CIRCUIT, DECK MECHANISM CIRCUIT and TAPE
EJECT CIRCUIT
89
17.5. POWER CIRCUIT
90
17.6. TRANSFORMER CIRCUIT
91
17.7. CD LOADING CIRCUIT
92
18 Printed Circuit Board Diagrams
93
18.1. CD SERVO P.C.B
93
18.2. MAIN P.C.B
94
18.3. PANEL P.C.B
95
18.4. DECK P.C.B, DECK MECHANISM P.C.B, TAPE EJECT
P.C.B and CD LOADING P.C.B
96
18.5. POWER P.C.B
97
18.6. TRANSFORMER P.C.B
98
19 Illustration of IC's, Transistors and Diodes
99
20 Terminal Function of IC's
100
20.1. IC7001 (MN6627954MA) IC SERVO
PROCESSOR/DIGITAL SIGNAL PROCESSOR/DIGITAL
FILTER D/A CONVERTER
100
20.2. IC7002 (BA5948FPE2) IC 4CH Drive
101
20.3. IC401 (C2CBYY000213) IC MICRO-PROCESSOR
101
21 Exploded Views
103
21.1. Cabinet Parts Location
103
21.2. CD Loading Mechanism Parts Location
104
21.3. Deck Mechanism (RAA4403-S) & Traverse Parts Location
105
21.4. Packaging
106
22 Replacement Parts List
107
3
SA-PM54E / SA-PM54EG
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.
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 (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 1.5k
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) may
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.
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-PM54E / SA-PM54EG
