Laser Beam Safety Precaution; Ic Block - Fisher PH-DTA300M Service Manual

LASER BEAM SAFETY PRECAUTION

• Pickup that emits a laser beam is used on this CD section.
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
IC BLOCK DIAGRAM & DESCRIPTION
IC803 TA2092N (Power Driver)
TERMINAL
SYMBOL
NO.
1 PW GND
2 OUT(-)1
3 PV
CC1
4 OUT(+)1
5 V
IN1
6 V
RI
7 V
CI
24 23 22 21 20 19 18 17 16 15 14 13
1 2 3 4 5
1 12 13 24
6 7 8 9 10 11 12
TERMINAL
SYMBOL
NO.
8 V
IN2
9 OUT(+)2
10 PV
CC2
11 OUT(-)2
12 PW GND
13 PW GND
14 OUT(-)3
15 PV
CC3
16 OUT(+)3
17 V
IN3
18 S GND
19 S V
CC
20 V
IN4
21 OUT(+)4
22 PV
CC4
23 OUT(-)4
24 PW GND
- 1 -
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 WENN SICHERHEITSVERRIEGELUNG
ÜBERBRÜCKT IST. NICHT, DEM STRAHL AUSSETZEN.
VARO – AVATTAESSA JA SUOJALUKITUS OHITETTAESSA OLET ALTTIINA
NÄKYMÄTTÖMÄLLE LASERSÄTEILYLLE. ÄLÄ KATSO SÄTEESEEN.
FUNCTION
Input for CH2
Non-inverted output for CH2
Supply terminal of output stage for CH2
Inverted output for CH2
Power GND
Power GND
Inverted output for CH3
Supply terminal of output stage for CH3
Non-inverted output for CH3
Input for CH3
Supply terminal of small signal GND
Small signal GND
Input for CH4
Non-inverted output for CH4
Supply terminal of output stage for CH4
Inverted output for CH4
Power GND