- 1 -
CAUTION :
USE OF CONTROLS OR ADJUSTMENTS OR
PERFORMANCE OF PROCEDURES OTHER
THAN THOSE SPECIFIED HEREIN MAY RESULT
IN HAZARDOUS RADIATION EXPOSURE.
LASER OUTPUT................ 0.6 mW Max. (CW)
WAVE LENGTH ................. 790 nm
• Pickup that emits a laser beam is used on this CD section.
LASER BEAM SAFETY PRECAUTION
CLASS 1 LASER PRODUCT
LUOKAN 1 LASERLAITE
KLASS 1 LASERAPPARAT
CAUTION-INVISIBLE LASER RADIATION WHEN OPEN AND
INTERLOCKS DEFEATED. AVOID EXPOSURE TO BEAM.
ADVARSEL-USYNLIG LASER STRÅLING VED ÅBNING, NÅR
SIKKERHEDSAFBRYDERE ER UDE AF FUNKTION, UNDGÅ
UDS ÆTTELSE FOR STRÅLING.
VARNING-OSYNLIG LASER STRÅLNING NÄR DENNA DEL
ÄR ÖPPNAD OCH SPÄRR ÄR URKOPPLAD. STRÅLEN ÄR
FARLIG.
VORSICHT! -UNSICHTBARE LASERSTRAHLUNG TRITT
AUS, WENN DECKEL GEÖFFNET UND ENN
SICHERHEITSVERRIEGELUNG ÜBERBRÜCKT IST. NICHT,
DEM STRAHL AUSSETZEN.
VARO – AVATTAESSA JA SUOJALUKITUS OHITETTAESSA
OLET ALTTIINA NÄKYMÄTTÖMÄLLE LASERSÄTEILYLLE.
ÄLÄ KATSO SÄTEESEEN.
IC BLOCK DIAGRAM & DESCRIPTION
IC201 LA4227 (Power-Amp.)
IC202 ka7808 (Voltage Regulator)
+
STANDBY
SW
BIAS
CIRCUIT
Ch1
Ch2
THERMAL
SHUT DOWN
PROTECTION
-
+
-
1
2
3
4
5
6
78
9
101112
STANDBY
OUT2
BS2 NF2
IN2 DC
(FILTER)
VCC
OUT1
BS1
NF1
IN1
PRE GND
CURRENT
GENERATOR
REFERENCE
VOLTAGE
STARTING
CIRCUIT
ERROR
AMPLIFIER
SOA
PROTECTION
THERMAL
PROTECTION
SERIES
PASS
ELEMENT
1INPUT 3
OUTPUT
2
GND
IC301 AN7312
1 2 3
89
10
111213
14
Amp. Ch2
4 5 6 7
Amp. Ch1
GND ALC Const. ALC IN1 OUT1 PC1 NF1 IN1
ALC IN2 OUT2 PC2 NF2 IN2RFV
CC
ALC
Ripple Filter
SIC601 BA5826FP
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