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Extracted text from sanyo mcd zx200f (Ocr-read)
Page 1
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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 - Pickup that emits a laser beam is used on this CD section.
LASER BEAM SAFETY PRECAUTION
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 ENN
SICHERHEITSVERRIEGELUNG ÜBERBRÜCKT IST. NICHT,
DEM STRAHL AUSSETZEN.
VARO !-Avattaessa ja suojalukitus ohitettaessa olet alttiina
näkymättömälle lasersäteilylle. Älä katso säteeseen. CLASS 1 LASER PRODUCT
LUOKAN 1 LASERLAITE
KLASS 1 LASERAPPARAT
IC BLOCK DIAGRAM & DESCRIPTION
IC201 BA3308 (Pre-Amp.) IC301 TA8227 (Power Amp.)
1
NF 1 INPUT 1 OUTPUT 1 GND ALC Vcc OUTPUT 2 INPUT 2 NF 223456789 ch1 ch2
ALC MUTE
IC501 TC4052(Defferential 4-Channel Multiplexer)
OUT c IN
OUT c IN
OUT c IN
OUT c IN
OUT c IN
OUT c IN
OUT c IN
OUT c IN12
14
15
11
1
5
2
4
30X
1X
2X
3X
0Y
1Y
2Y
3Y
Y-COMMON
13 X-COMMON
6 9 10
INHB A16 V
DD
87
V
SS VEE
LOGIC LEVEL CONVERTER
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TUNER ADJUSTMENTS
Use a plastic screw driver for adjustments.
Adjust the intermediate frequency of AM and FM to the frequency of ceramic filter.
Set of unit
Supply voltage : DC 12.0V
Speaker impedance : 8 ohms
Standard output : 50 mW
Function switch : RADIO
a. Parts Location
a. AM AdjustmentBand switch : AM
Adjusting Connections
SGPosition of VTVM
Circuit lnput Output
FrequencyTuning dial Oscilloscope
Connect sweep
1IF generator to(19)IC101 465KHz Low T103
(H) 0and C112(E)
2Tuning Connect AM SG to Connect VTVM to 515 KHz Low end T101
3 coverage test loop speaker terminals. 1640 KHz High end C3
4Connect AM SG to Connect VTVM to 600 KHz 600 KHz MW ANT
5test loop speaker terminals 1400 KHz 1400 KHz C4
b. FM AdjustmentBand switch : FM FM Dummy antenna : 75 ohms unbalance
Adjusting Connection position of VTVM
Circuit Input Output tuning dial Oscilloscope
Connect sweep Connect VTVM to
1IF generator to IC101 generator to (19)PIN 10.7MHz Low T104 andT102
IC101(22)pin (E) IC101(H) and C112(E)
2Tuning Connect FM SG to Connect VTVM to 87.0 MHz Low end L102
3coverage FM ANT(A) & D102(B) speaker terminals. 109.0 MHz High end C1
4Connect FM SG to Connect VTVM to 90.0 MHz 90.0 MHz L101
5FM ANT(A) &D102(B) speaker terminals. 106.0 MHz 106.0 MHz C2
StepAdjustment
Closed the output
terminal by sweep
generator,it place
to MW ANT
Max.
Max.
Tracking
Step SG Frequency
TrackingMax.
Max. Adjustment