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Laser Beam Safety Precaution - Sanyo DTA-150 Service Manual

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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
IC802 TC9462 (DIGITAL SERVO)
DVSR
81
RO
82
DVDD
83
DVR
84
LO
85
DVSL
86
TEST1
87
TEST2
88
TEST3
89
BUS0
90
BUS1
91
BUS2
92
BUS3
93
VDD
94
VSS
95
BUCK
96
CCE
97
TEST4
98
TSMOD
99
RST
100
80
79
78
77
76
75
74
73
72
71
70
1 BIT
LPF
DAC
CLOCK
GENERATOR
ADDRESS
MICON
CIRCUIT
INTERFACE
CORRECTION
CIRCUIT
DIGITAL OUT
AUDIO OUT
CIRCUIT
1
2
3
4
5
6
7
8
9
10
11
CAUTION – IN VISIBLE LASER RADIA TION WHEN O PEN AND
INTERLOCKS DE FEATED. A VOID E XPOSURE TO BEA M.
ADVARSEL – US YNLIG LA SER STR ÅLING VE D ÅBNING, N ÅR
SIKKERHEDSAFBRYDERE ER UDE A F FUNKTION, UN DGÅ UD S ÆTTELSE
FOR STR ÅLING.
VARNING – OS YNLIG LA SER STR ÅLNING N ÄR DENNA DEL ÄR ÖPPNAD
OCH S PÄRR ÄR UR KOPPLAD. ST RÅLEN ÄR FARLIG.
VORSICHT – UN SICHTBARE LASERSTRA HLUNG TR ITT AUS , WENN
DECKEL GEÖFFNET UND WENN SIC HERHEITSVERRIEGELUNG
ÜBERBRÜCKT IST . NI CHT, DE M ST RAHL AUSSET ZEN.
VARO – A VATTAESSA JA SUO JALUKITUS O HITETTAESSA OLET AL TTIINA
NÄKYMÄTTÖMÄLLE LASERS ÄTEILYLLE. ÄLÄ KATSO S ÄTEESEEN.
69
68
67
66
65
64
63
62
61
60
59
SERVO
CONTROL
DIGITAL
ROM
EQUALIZER
AUTOMATIC
ADJUSTMENT
RAM
CIRCUIT
CLV SERVO
16k RAM
SYNCHRONOUS
GUARANTEE
EFM DECODE
SUB CODE
DECODER
STATUS
12
13
14
15
16
17
18
19
20
21
22
- 1 -
58
57
56
55 54 53 52 51
PWM
50
VREF
D/A
49
TRO
48
FDO
47
TEZI
+
-
46
TEI
45
TSIN
44
SBAD
A/D
43
FEI
+
-
42
RFRP
41
RFZI
+
-
40
RFCT
39
AVDD
DATA
38
RFI
SLICER
37
SLCO
36
AVSS
35
VCOF
VCO
34
VCOREF
33
PVREF
+
PLL TMAX
32
LPFO
-
LPFN
31
23
24
25
26
27
28
29
30

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