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Service Manual
TOP NEXT ORDER NO. MD0005068C3
CD Stereo System
SA-PM03 Colour (S)...Silver Type Area (GCS)...Singapore (GN)...Oceania CD SECTION RAE0152Z-3 TRAVERSE DECK SERIES
Specifications
Amplifier Section RMS power output THD 10%, both channels driven 1 kHz (For GN) (For GCS) PMPO power output (For GCS) Input sensitivity AUX Input impedance AUX Output impedance LINE OUT Headphone FM Tuner Section Frequency range Sensitivity S/N 26 dB Antenna terminal(s) AM Tuner Section Frequency range (For GN) (For GCS) 522 - 1629 kHz (9 kHz steps) 522 - 1629 kHz (9 kHz steps) 530 - 1630 kHz (10 kHz steps) 87.50 - 108.00 MHz (50kHz steps) 1.8V (IHF) 1.5V 75 (unbalanced) 2.2 k 16-32 47 k 250 mV 160 W 15 W per channel (6) 14 W per channel (6)
Sensitivity S/N 20dB CD Section 500V/m
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Sampling frequency Decoding Beam source/wave length Number of channels S/N ratio SP OUT WOW and flutter Digital filter D/A converter General Power supply (For GN) (For GCS) Power consumption Standby (For GN) (For GCS) Dimensions (W x H x D) Weight Notes: 1. 2.
44.1 kHz 16 bit linear Semiconductor laser/ 780 nm 2 channels Stereo
82 dB (JIS A) Below measurable limit 8 fs MASH (1 bit DAC)
AC 230 - 240 V, 50 Hz AC 110 - 120 V/ 220-240 V, 50/60 Hz 50 W
0.5 W 0.7 W 190 x 149 x 297 mm Approx 3.7 kg
Specifications are subject to change without notices. Weight and dimensions are approximate. Total harmonic distortion is measured by the digital spectrum analyzer.
System SC-PM03 (GCS) Music Center: SA-PM03 (GCS) Speaker: SB-PM03 (E) SC-PM03 (GN) Music Center: SA-PM03 (GN) Speaker: SB-PM03 (E)
© 2000 Matsushita Electronics (S) Pte. Ltd. All rights reserved. Unauthorized copying and distribution is a violation of law.
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7 Self-Diagnostic Display Function
TOP PREVIOUS NEXT This unit is equipped with a self diagnostic display function which, if a problem occurs, it will display an error code corresponding to the problem. Use this function when performing maintenance on the unit. 7.1 How to enter the Self-Diagnostic Display Function mode. 7.2 Interpretation of Error Codes. 7.2.1 Abnormality Detection for CD Block 7.2.2 Detailed specification for F75 7.2.3 Abnormality Detection for Power Supply @ TOP PREVIOUS NEXT
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7.1 How to enter the Self-Diagnostic Display Function mode.
TOP PREVIOUS NEXT 1. Turn the power on. 2. Set the operation selector to CD. (with no CD loading condition) 3. Press and hold the CD_STOP button for more than 2 seconds. While pressing the CD_STOP button, press and hold the F_SKIP button for 2 seconds."T" will appear on the FL display. (The set is in the Self-Diagnostic Function Mode) 4. Press CD OPEN tray. 5. Under self-diagnosis mode, press CD STOP key to display memorised abnormality. Every time the key is pressed, the memorised numbers of abnormality shall appear cyclically. Self-diagnosis mode will start even if CD_STOP key is released after F_SKIP key is pressed, as both keys use the same AD line. Retain the memory of abnormality as long as memories of the micro-p are backed up. When RAM check at the reset of micro-p fails, clear all the RAM.
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7.2 Interpretation of Error Codes.
TOP PREVIOUS NEXT 7.2.1 Abnormality Detection for CD Block 7.2.2 Detailed specification for F75 7.2.3 Abnormality Detection for Power Supply @ TOP PREVIOUS NEXT
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7.2.1 Abnormality Detection for CD Block
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Display Abnormal Items Content of Abnormality
F15 F75
RESET SW abnormal CD power abnormal Transmission error between CD servo LSI and micro-p
RESET SW ON is not detected within the specified time under normal operation (including self-dianosis mode MDATA does not become H within 1 sec after MDATA is temporaly changed to input. Level detection is conducted when the selector is switched to CD under normal operation (including self-diagnosis mode).
F26
SENSE=L is not detected within a fail-safe period (20mSec) after the selector is switched to CD. SENSE=H is detected and system command is transmitted to CD LSI, under normal operation(including self-diagnosismode). CD tray is left open due to fail-safe function under normal operation.
H16
Close SW abnormal
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7.2.2 Detailed specification for F75
TOP PREVIOUS NEXT For this model, a command needs to be transmitted quickly when CD LSI's RESET becomes H. Therefore, temporarily set the MDATA port as input and use it to detect CD power. 1. When the selector is switched to CD or power becomes on at CD mode, temporarily set MDATA port as input and check id MDATA is H. The check will start 20 mSec after the selector chane signal has been output. (CD RESET shall remain as L) 2. If the MDATA is not detected as H within 1 Sec after starting the check, memorise F75 and change CD_L to H. Maintain CD RESET as L prohibits command output to CD LSI. However, other operations such as accepting keys shall be continued. When theCD mode is re-selected, set CD_L to L as usual and cinduct CD power detection. Once the power is detected, resume the normal operation. (F75 shall not be cleared) 3.Once MDATA is detected as H. Change it to output and RESET. 4. Even during the normal operation at CD mode, set MDATA to input and detect the power as described in b. above when MDATA port is not used for output. The Circuit has to be designed to enable MDATA line detect H when it is set to input (especially pull-up and pull down),; @ TOP PREVIOUS NEXT
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7.2.3 Abnormality Detection for Power Supply
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Display Abnormal Items F61 POWER AMP PDET becomes NG (AG_)) when the power is on, or PDET remians NG (AGD even when T is made to H. F61 shall be displayed after PCNT has been changed to L. Memorise the error and display the contents of abnormality.Refer to SELF-DIAGNOSIS output FUNCTION FOR CD. Content of Abnormality
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11 Block Diagram
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12 Schematic Diagram
TOP PREVIOUS NEXT (All schematic diagrams may be modified at any time with the development of new technology) Note : S701 Reset switch SW801 Power switch SW802 Memory switch SW803 Tuning mode select switch SW804 Timer adjust/fast forward/skip search switch SW805 CD stop switch SW806 Timer adjust/rewind/skip search switch SW807 Tuner band select switch SW808 CD/CD play/pause select switch SW809 AUX switch SW810 CD open/close switch
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SW811 Sound virtualizer switch SW812 Timer fader switch SW813 Play timer switch SW814 Clock/timer switch SW820 Leaf switch VR801 Volume control VR The voltage value and waveforms are the reference voltage of this unit measured by DC electronic voltmeter (high impedance) and oscilloscope on the basis of chassis. Accordingly, there may arise some error in voltage values and waveformsdepending upon the internal impedance of the tester or the measuring unit. No mark : Playback (( )) : CD <> : FM () : AM [] : AUX Importance safety notice : Components identified by mark have special characteristics important for safety. Furthermore, special parts which have purposes of fire-retardant (resistors), high-quality sound (capacitors), low-
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noise (resistors), etc. are used. When replacing any of components, be sure to use only manufacturer´s specified parts shown in the parts list.
Caution !
IC, LSI and VLSI are sensitive to static electricity. Secondary trouble can be prevented by taking care during repair. Cover the parts boxes made of plastics with aluminium foil. Put a conductive mat on the work table. Ground the soldering iron. Do not touch the pins of IC, LSI or VLSI with fingers directly.
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14 Wiring Connection Diagram
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15 Troubleshooting Guide
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