Panasonic SAAK18 - MINI HES W/CD-PLAYER Bedienungsanleitung
ORDER NO. MD0003033C2
CD Stereo System
SA-AK18
Colour
(S)... Silver Type
Area
(E)...Europe
(EB)...Great Britain
(EG)...Germany and Italy
TAPE SECTION :
AR2 MECHANISM SERIES
CD SECTION :
RAE0152Z-3 TRAVERSE DECK SERIES
SPECIFICATIONS
Specifications
1
CD Stereo System 1
Specifications 1
1. Before Repair and Adjustment 3
2. Protection Circuitry 3
3. Accessories 3
4. Handling Precautions For Traverse Deck 5
5. Precaution of Laser Diode 6
6. Caution for AC Mains Lead 8
7. Operation Procedures 9
8. Operation Checks and Main Component Replacement Procedures 11
8.1. Checking Procedure for each major P.C.B. 12
8.1.1. Checking of the Main, Panel, Deck and Power P.C.B. 12
8.2. Main Component Replacement Procedures 15
8.2.1. Replacement of the Traverse Deck 16
8.2.2. Replacement of the Power Amplifier IC 18
8.3. Disassembly and assembly of the Traverse Unit 20
8.4. Disassembly and assembly of the Disc Tray 22
9. Self-Diagnostic Function 25
9.1. Self-diagnostic display 25
9.2. How to enter the Self-Diagnostic Function 25
9.3. Cassette Mechanism Test (For error code H01, H02, H03, F01, F02) 26
9.4. CD Mechanism Test (F15, F26, F16, F17, F27, F28, F29, H15, F75) 26
9.5. To clear all Error code 27
9.6. How to get out from Self-Diagnostic function 27
9.7. Power Amplifier Failure (F61) 27
10. Description of Error Code 27
10.1. Error detection for Cassette Mechanism block 27
10.2. Error detection for CD/Changer block 27
10.3. Power Supply related error detection 28
11. CD Test Mode Function 28
11.1. How to set CD test mode 28
11.2. CD Automatically Adjustment result indication 29
12. Measurements and Adjustments 29
12.1. Cassette Deck Section 29
12.1.1. Head Azimuth Adjustment (Deck 1/2) 29
12.1.2. Tape Speed Adjustment (Deck 1/2) 30
12.1.3. Bias and Erase Voltage Check 30
12.1.4. Bias Frequency Adjustment (Deck 1/2) 31
12.2. Tuner Section 31
12.2.1. AM-IF Alignment 31
12.3. Alignment Points 32
13. Illustration of IC’s, Transistors and Diodes 33
14. Terminal Function of ICs 33
14.1. IC701 (AN8839NSBE2) Servo Amplifier 33
14.2. IC702 (MN662790RSC) Servo processor/ Digital signal processor/ Digital filter/ D/A converter 34
14.3. IC703 (AN8739SBE2) Focus coil/ Tracking coil/ Traverse motor/ Spindle motor driver 36
14.4. IC600 (M38199MF227) System Microprocessor 37
15. Block Diagram 39
16. Schematic Diagram 39
17. Printed Circuit Board 42
18. Wiring Connection Diagram 42
svcdoc
I
19. Troubleshooting Guide 42
20. Parts Location and Replacement Parts List 43
20.1. Deck Mechanism (RAA3410-S) 44
20.1.1. Deck Mechanism Parts Location 44
20.1.2. Deck Mechanism Parts List 46
20.2. CD Loading Mechanism (RD-DAC026-S) 47
20.2.1. CD Loading Mechanism Parts Location 47
20.2.2. CD Loading Mechanism Parts List 49
20.3. Cabinet 51
20.3.1. Cabinet Parts Location 51
20.3.2. Cabinet Parts List 53
20.4. Electrical Parts List 54
20.5. Packing Materials & Accessories Parts List 85
20.6. Packaging 85
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II
█AMPLIFIER SECTION
RMS power output
THD 10%, both channels driven 60 W per channel (6 Ω)
Input sensitivity
AUX 250 mV
Input Impedance
AUX 13.9 kΩ
█FM TUNER SECTION
Frequency range 87.5 - 108 MHz (50 kHz steps)
Sensitivity 1.8 µV (IHF)
S/N 26 dB 1.5 µV
Antenna terminal(s) 75 Ω(unbalanced)
█AM TUNER SECTION
Frequency range 522 - 1629 kHz (9 kHz steps)
Sensitivity
S/N 20 dB (at 999 kHz) 560 µV/m
█CASSETTE DECK SECTION
Track system 4 track, 2 channel
Heads
Record/playback Solid permalloy head
Erasure Double gap ferrite head
Motor DC servo motor
Recording system AC bias 100 kHz
Erasing system AC erase 100 kHz
Tape speed 4.8 cm/s
Frequency response (+3 dB, -6 dB at DECK OUT)
NORMAL (TYPE I) 35 Hz - 14 kHz
HIGH (TYPE II) 35 Hz - 14 kHz
S/N 50 dB (A weighted)
Wow and flutter 0.18% (WRMS)
Fast forward and rewind time Approx. 120 seconds with
C-60 cassette tape
█CD SECTION
Sampling frequency 44.1 kHz
Decoding 16 bit linear
Beam source/wave length Semiconductor laser/780 nm
Number of channels Stereo
Frequency response 20 Hz - 20 kHz (+1, -2 dB)
Wow and flutter Below measurable limit
Digital filter 8 fs
D/A converter MASH (1 bit DAC)
█GENERAL
Power supply
For E, EG AC 230 V, 50 Hz
For EB AC 230-240 V, 50 Hz
Power consumption 152 W
Power consumption in standby mode
Eco mode on 0.4 W
Eco mode off 12 W
Dimensions (W x H x D) 270 x 330 x 310 mm
Weight 6.9 kg
2
█SYSTEM
SC-AK18 (E) Music Center: SA-AK18 (E)
Speaker: SB-AK18 (E)
SC-AK18 (EB) Music Center: SA-AK18 (EB)
Speaker: SB-AK18 (E)
SC-AK18 (EG) Music Center: SA-AK18 (EG)
Speaker: SB-AK18 (E)
Notes:
1. Specifiacations are subject to change without notice. Weight and
dimensions are approximate.
2. Total harmonic distortion is measured by the digital spectrum analyzer.
© 2000 Matsushita Electronics (S) Pte Ltd. All rights reserved. Unauthorized copying and distribution is a violation of law.
1. Before Repair and Adjustment
Disconnect AC power, discharge Power Supply Capacitors C536, C545, C546 and C555 through a 10 Ω, 5W
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, 50 Hz in NO SIGNAL mode should be ~200mA.
2. 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.
3. Accessories
Remote Control Transmitter
3
FM indoor antenna
AC mains lead (E,EG)
AC main lead (EB)
FM antenna Plug Adaptor (EB)
4
AM Loop antenna
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. The short land between the No.4 (LD) and No.5 (GND) pins on the flexible board (FFC) is shorted with a solder build-up
to prevent damage to the laser diode.
To connect to the PC board, be sure to open by removing the solder build-up, and finish the work quickly.
3. Take care not to apply excessive stress to the flexible board (FFC board).
4. Do not turn the variable resistor (laser power adjustment). It has already been adjusted.
5
• Grounding for electrostatic breakdown prevention
1. Human body grounding
Use the anti-static wrist strap to discharge the static electricity from your body.
2. Work table grounding
Put a conductive material (sheet) or steel sheet on the area where the traverse deck (optical pickup) is placed, 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.
5. 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 frompick up unit is
safety level, but be sure the followings:
6
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 :100W/VDE / DieStrahlung 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.
█Use of Caution Labels
7
6. Caution for AC Mains Lead
8
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