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Laser Beam Safety Precaution; Ic Block - Sanyo MCD-ZX500F 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
IC901 LA9242M (Servo)
IC903 LA6541 (CD Driver)
Vcc
Vref
VIN4
VG4
Vo8
Vo7
24
23
22
21
20
19
Vcc
11k Ω
Level
BTL
Sift
Driver
Level
BTL
Sift
Driver
11k Ω
1
2
3
4
5
6
Vcc
Mute
VIN1
VG1
Vo1
Vo2
64
62
61
63
APC
FIN2
1
FIN1
2
VCA
I/V
E
3
BAL
VCA
F
4
TB
5
TE
+
-
TE-
6
TE
7
TESI
8
SCI
9
T.SERVO & T .LOGIC
TH
10
TA
11
TD-
12
F .SERVO & F . LOGIC
TD
13
14
JP
+
-
TO
15
FD
16
17
PIN FUNCTION
11
TA
1
FIN2
21
FE-
12
TD-
2
FIN1
22
AGND
3
E
13
TD
23
NC
4
F
14
JP
24
SP
5
TB
15
TO
25
SPG
6
TE-
16
FD
26
SP-
17
FD-
7
TE
27
SPD
18
FA
8
TESI
28
SLEQ
9
SCI
19
FA-
29
SLD
10
TH
20
FE
30
SL-
GND
Vo6
Vo5
VG3
VIN3
CD
18
17
16
15
14
11k Ω
BTL
Level
RESET
Driver
Sift
BTL
Level
Regulator
Driver
Sift
11k Ω
7
8
9
10
11
GND
Vo3
Vo4
VG2
VIN2 Reg OUT Reg IN
CAUTION-INVISIBLE LASER RADIATION WHEN OPEN AND
INTERLOCKS DEFEATED. AVOID EXPOSURE TO BEAM.
ADVARSEL-USYNLIG LASER STR LING VED BNING, N R
SIKKERHEDSAFBRYDERE ER UDE AF FUNKTION, UNDG
UDS
TTELSE FOR STR LING.
VARNING-OSYNLIG LASER STR LNING N R DENNA DEL
R
PPNAD OCH SP RR R URKOPPLAD. STR LEN R
FARLIG.
VORSICHT! -UNSICHTBARE LASERSTRAHLUNG TRITT
A U S , W E N N D E C K E L G E
F F N E T U N D E N N
SICHERHEITSVERRIEGELUNG BERBR CKT IST. NICHT,
DEM STRAHL AUSSETZEN.
VARO !-Avattaessa ja suojalukitus ohitettaessa olet alttiina
n kym tt m lle lasers teilylle. l katso s teeseen.
60
59
58
57 56
55 54 53 52 51 50
REF
RF DET
U-COM
INTER FACE
SPINDLE SERVO
SLED SERVO
+
-
19
20
21
22
23
24
25
27
28
18
26
31
SL+
41
RFSM
51
32
JP-
42
RFS-
52
33
JP+
43
SLC
53
34
TGL
44
SLI
54
35
TOFF
45
DGND
55
36
TES
46
FSC
56
37
HFL
47
TBC
57
38
SLOF
48
NC
58
39
CV-
49
DEF
59
40
CV+
50
CLK
60
IC101 LA1824 (Tuner)
RES
24
23
22
21
13
FM
GND2
Vcc2
RF
FM
MIX
AM
MIX
AM
AM
REG
OSC
Vcc1
RF
12
1
2
3
4
- 1 -
49
48
NC
47
TBC
46
FSC
SLC
45
DGND
44
SLI
43
SLC
42
RFS-
41
RFSM
RF Amp
40
CV+
39
CV-
38
SLOF
37
HFL
36
TES
35
TOFF
34
TGL
33
JP+
+
-
29
30
31
32
CL
61
BH1
DAT
62
LDD
CE
63
LDS
DRF
64
Vcc1
FSS
Vcc2
REF1
VR
Lf2
Ph1
20
19
18
17
16
15
PHASE
FM
DECODER
COMP
OSC
TRIG
ST-SW
VCO
FF
FF
S-METER
TUN
ST
GND1
FM-IF
LED
LED
5
6
7
8
9
10
14
13
DET
FF
PILOT
DET
DET
AGC
AM-IF
11
12

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