Laser Beam Safety Precaution - Sanyo MCD-ZX300 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
IC201 TA2068N (Cassette Preamp.) IC301 LA4227(Power Amp.)
BS1
VCC
OUT1
12 11 10
THERMAL
SHUT DOWN
PROTECTION
STANDBY
SW
1 2
OUT2
STANDBY BS2
IC903 MM1469XH (CD Driver)
28 27 26 25 24 23
D.BUF D.BUF
T.S.D
D.BUF D.BUF
1 2 3 4 5 6
- 1 -
NF1 PRE GND
IN1
9 8
-
Ch1
+
BIAS
CIRCUIT
+
Ch2
-
3 4 5
NF2 IN2 DC
(FILTER)
22 21 20 19 18 17
D.BUF D.BUF
Vcc
Vcc
DRIVER MUTE
D.BUF D.BUF
7 8 9 10 11 12
7
6
16 15
13 14