Sanyo PH-DTA120 Bedienungsanleitung
FILE NO.
Service Manual
R
Audio System
PH-DTA120 (DE)
(US)
DTA-120 (UK)
(XE)
(AU)
(CA)
(SS)
PRODUCT CODE No.
129 699 09 DE
129 699 03 US
129 699 01 UK
129 699 02 XE
129 699 05 AU
129 699 04 CA
129 699 07 SS
REFERENCE No. SM5810617
Laser beam safety precaution .......................................... 1
Tuner Adjustments ........................................................... 2
Wiring Connection ........................................................... 3
Exploded View (Cabinet & Chassis) ................................ 4
Exploded View (Speaker) ................................................ 6
Parts List(Cabinet & Chassis) .......................................... 7
Parts List(Speaker) .......................................................... 9
Block Diagram .................................................................. 10
IC Block Diagram & Description ....................................... 11
Schematic Diagram .......................................................... 12
Wiring Diagram ............................................................... 18
CONTENTS
1234
5678
90
- 1 -
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
CLASS 1 LASER PRODUCT
LUOKAN 1 LASERLAITE
KLASS 1 LASERAPPARAT
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, UNDGÅUDS 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 WENN SICHERHEITSVERRIEGELUNG
ÜBERBRÜCKT IST. NICHT, DEM STRAHL AUSSETZEN.
VARO –AVATTAESSA JA SUOJALUKITUS OHITETTAESSA OLET ALTTIINA
NÄKYMÄTTÖMÄLLE LASERSÄTEILYLLE. ÄLÄKATSO SÄTEESEEN.
- 2 -
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 10.5 V
Speaker impedance : 4 ohms
Standard output : 50 mW
Function switch : RADIO
a. Parts Location
MAIN PCB (Top View) MAIN PCB (Bottom View)
TP44
TP42
GND
FMANT
TP45
TP43
FMGND
L4
C80
C84
T2
T1
L3
a. AM Adjustment Band switch : AM
Connections
Step Adjusting
Circuit Input Output
SG
Frequency
Position of
Tuning dial Adjustment VTVM
Oscilloscope
1 IF Connect sweep
generator to TP45
Connect sweep
generator to TP43 450 KHz Low T2
2 522 KHz Low end T1
3
Tuning
coverage
Connect Digital meter
to TP42 and GND 1629 KHz High end Checking
VT: Low: 1.3 ± 0.1V
High: 7.3 ± 7.8 V
4 612 KHz 612 KHz MW ANT
5 Tracking Connect AM SG to test
loop
Connect VTVM to
speaker terminals 1404 KHz 1404 KHz C84 Max.
b. FM Adjustment Band switch : FM FM Dummy antenna : 75 ohms unbalance
Connections
Step Adjusting
Circuit Input Output
SG
Frequency
Position of
Tuning dial Adjustment VTVM
Oscilloscope
1 IF Connect sweep
generator to TP44
and GND
Connect sweep
generator to TP43
and GND
10.65 MHz Low Checking
2 76 MHz Low end L3
3
Tuning
coverage
Connect Digital meter
to TP42 and GND 3 CH High end Checking
VT: Low: 1.6 ± 0.1V
High: 8.0 ± 8.8 V
4 78 MHz 78 MHz L4
5 Tracking Connect FM SG to FM
ANT and FM GND
Connect VTVM to
speaker terminals 3 CH 107.75 MHz C80 Max.
This is a basic tuner adjustments.
- 3 -
WIRING CONNECTION
P/N:25-60070-24
2 4 PI N FP C C ABLE P-0.5L=70 MM
P/N: 20-41042-41
4PINUL2651#28P=2 L=160MM
P/N:20-61031-20
3PINHGUL2547#28P=2L=250/3MM
P/N:20-42021-64
2PINHG#26UL L=130/4MMP=2.5
P/N: 20-61031-19
3PINHGUL2547#28P=2 L=140/3MM
P/N:20-62031-41
3PINUL2547#28P=2.5L=150/3MM
This is a basic wiring connection.
Dieses Handbuch passt für folgende Modelle
1
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