Panasonic SA-HT520EE Service Manual ▷ View online
7.2. Cautions to Be Taken During Replacement of Optical Pickup
Supplied optical pickup is equipped with a short clip found at the end of flexible cable in order to prevent electrostatic destruction
of laser diode. Before connection, remove the short clip, and check that the short land is opened (remove solder if the part is short-
circuited). Also ensure human body is properly ground (Refer Section 7.3)
of laser diode. Before connection, remove the short clip, and check that the short land is opened (remove solder if the part is short-
circuited). Also ensure human body is properly ground (Refer Section 7.3)
7.3. Grounding for Preventing Electrostatic Destruction
1. Human body grounding
Use an anti-static wrist strap to release static electricity accumulated in your body. (Refer to Fig. 7-3)
2. Workplace grounding
Place a conductive material (conductive sheet) or iron board where optical pickup is placed. (Refer to 7-3)
Note:
Keep your clothes away from optical pickup as wrist strap does not release the static electricity charged in clothes.
Fig. 7-3
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SA-HT520EE
8 Precaution of Laser Diode
CAUTION :
This product utilizers a class 1 laser. Invisible laser radiation is emitted from the optical pick up lens.
When the unit is turned on:
Wavelenght : 662nm/785nm
Maximum output radiation power from pick up : 100µW/VDE
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 enigeschalteten Zustand wird unsichtbare Laserstrahlung von der Lasereinheit
abgestrahlt.
Wellenlänge : 662nm/785nm
Maximale Strahlungsleistung der Lasereinheit : 100µW/VDE
Die Strahlung an der Lasereinheit ist ungefährlich, wenn folgende Punkte beachtet werden:
abgestrahlt.
Wellenlänge : 662nm/785nm
Maximale Strahlungsleistung der Lasereinheit : 100µW/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.
USE OF CONTROLS OR ADJUSTMENTS OR PERFORMANCE OF PROCEDURES OTHER THAN THOSE SPECIFIED HEREIN MAY RESULT
IN HAZARDOUS RADIATION EXPOSURE.
n Use of Caution Labels
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SA-HT520EE
9 Accessories
AC mains lead
FM indoor
antenna
AM loop antenna
Video cable
Remote control
Speaker cables
System cable
Sheet of
speaker-
speaker-
cable
stickers
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SA-HT520EE
10 Remote Control Reference
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SA-HT520EE
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