Laser Beam Safety Precaution; Ic Block - Sanyo MCD-ZX500F 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
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