Read Sony CFS-1055 Service Manual online
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ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!
LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE
! SUR LES
DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT
CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE
REMPLACER CES COMPOSANTS QUE PAR DES PIÈCES SONY
DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU
DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.
CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE
REMPLACER CES COMPOSANTS QUE PAR DES PIÈCES SONY
DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU
DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.
TABLE OF CONTENTS
SAFETY CHECK-OUT
After correcting the original service problem, perform the following
safety check before releasing the set to the customer :
Check the antenna terminals, metal trim, "metallized" knobs, screws,
and all other exposed metal parts for AC leakage. Check leakage as
described below.
safety check before releasing the set to the customer :
Check the antenna terminals, metal trim, "metallized" knobs, screws,
and all other exposed metal parts for AC leakage. Check leakage as
described below.
LEAKAGE TEST
The AC leakage from any exposed metal part to earth ground and
from all exposed metal parts to any exposed metal part having a return
to chassis, must not exceed 0.5mA (500 microampers).
Leakage current can be measured by any one of three methods.
1. A commercial leakage tester, such as the Simpson 229 or RCA
from all exposed metal parts to any exposed metal part having a return
to chassis, must not exceed 0.5mA (500 microampers).
Leakage current can be measured by any one of three methods.
1. A commercial leakage tester, such as the Simpson 229 or RCA
WT-540A. Follow the manufacturers’ instructions to use these
instruments.
instruments.
2. A battery-operated AC milliammeter. The Data Precision 245
digital multimeter is suitable for this job.
3. Measuring the voltage drop across a resistor by means of a VOM
or battery-operated AC voltmeter. The “limit” indication is 0.75V,
so analog meters must have an accurate low-voltage scale. The
Simpson 250 and Sanwa SH-63Trd are examples of a passive
VOM that is suitable. Nearly all battery operated digital
multimeters that have a 2V AC range are suitable. (See Fig. A)
so analog meters must have an accurate low-voltage scale. The
Simpson 250 and Sanwa SH-63Trd are examples of a passive
VOM that is suitable. Nearly all battery operated digital
multimeters that have a 2V AC range are suitable. (See Fig. A)
Fig. A. Using an AC voltmeter to check AC leakage.
1.5k
Ω
0.15
µ
F
AC
voltmeter
(0.75V)
voltmeter
(0.75V)
To Exposed Metal
Parts on Set
Parts on Set
Earth Ground
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK
! OR DOTTED LINE WITH
MARK
! ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS
LIST ARE CRITICAL TO SAFE OPERATION.
REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE
PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN
SUPPLEMENTS PUBLISHED BY SONY.
REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE
PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN
SUPPLEMENTS PUBLISHED BY SONY.
Section
Title
Page
Specifications ................................................................................. 1
1.
GENERAL
Location of Controls ............................................................... 3
Listening to the Radio Playing a Tape .................................... 3
Recording ................................................................................ 3
Adjusting the audio e mphasis ................................................ 4
Setting up the system .............................................................. 4
Connecting optional components ............................................ 4
Location of Controls ............................................................... 3
Listening to the Radio Playing a Tape .................................... 3
Recording ................................................................................ 3
Adjusting the audio e mphasis ................................................ 4
Setting up the system .............................................................. 4
Connecting optional components ............................................ 4
2.
DIAL POINTER INSTALLATION ....................................... 5
3.
ADJUSTMENTS .................................................................. 6
4.
DIAGRAMS
4-1. Circuit Boards Location ................................................. 11
4-2. Printed Wiring Boards ................................................... 12
4-3. Schematic Diagram ........................................................ 15
4-1. Circuit Boards Location ................................................. 11
4-2. Printed Wiring Boards ................................................... 12
4-3. Schematic Diagram ........................................................ 15
5.
EXPLODED VIEWS
5-1. Rear Cabinet Section ..................................................... 20
5-2. Front panel Section ........................................................ 21
5-3. Mechanism Deck Section (1) ........................................ 22
5-4. Mechanism Deck Section (2) ........................................ 23
5-5. Speaker Section ............................................................. 24
5-1. Rear Cabinet Section ..................................................... 20
5-2. Front panel Section ........................................................ 21
5-3. Mechanism Deck Section (1) ........................................ 22
5-4. Mechanism Deck Section (2) ........................................ 23
5-5. Speaker Section ............................................................. 24
6.
ELECTRICAL PARTS LIST ............................................. 25
r
HOW TO CHANGED THE CERAMIC FILTERS
This model is used three ceramic filters of CF1, CF2 and CF3.
You must used same type of color marked ceramic filters in order to
meet same specifications.
Therefore, the ceramic filter must changed three pieces together since
it's supply three pieces in on package as a spare parts.
You must used same type of color marked ceramic filters in order to
meet same specifications.
Therefore, the ceramic filter must changed three pieces together since
it's supply three pieces in on package as a spare parts.
Mark
Center
frequency
red
10.70MHz
blue
10.67MHz
orange
10.73MHz
black
10.64MHz
white
10.76MHz
CF3
CF1, 2
mark
mark
MODEL IDENTIFICATION
– Model Number Label –
– Model Number Label –
MODEL NO.
CFS-1055
RADIO CASSETTE-CORDER
US, Canadian, E model : AC 120V ~ 60Hz
Australian model : AC 230V ~ 50Hz
AEP, Italian model : AC 220-230V ~ 50Hz
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