Read Sony ICF-CD820 / ICF-CD820L / ICF-CD821 Service Manual online
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TABLE OF CONTENTS
1.
SERVICING NOTES
...............................................
2
2.
GENERAL
.................................................................
4
3.
DISASSEMBLY
.........................................................
6
4.
ELECTRICAL ADJUSTMENTS
Tuner Section ..................................................................
9
CD Section ...................................................................... 11
5.
DIAGRAMS
5-1. Printed Wiring Boards .................................................... 15
5-2. Schematic Diagram ......................................................... 19
5-3. IC Pin Function Description ........................................... 29
5-2. Schematic Diagram ......................................................... 19
5-3. IC Pin Function Description ........................................... 29
6.
EXPLODED VIEWS
................................................ 31
7.
ELECTRICAL PARTS LIST
............................... 34
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 COM-
POSANTS QUE PAR DES PIÈCES SONY DONT LES
NUMÉROS SONT DONNÉS DANS CE MANUEL OU
DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.
DES PIÈCES SONT CRITIQUES POUR LA SÉCURITÉ
DE FONCTIONNEMENT. NE REMPLACER CES COM-
POSANTS QUE PAR DES PIÈCES SONY DONT LES
NUMÉROS SONT DONNÉS DANS CE MANUEL OU
DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.
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 PUB-
LISHED BY SONY.
OPERATION. REPLACE THESE COMPONENTS WITH
SONY PARTS WHOSE PART NUMBERS APPEAR AS
SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUB-
LISHED BY SONY.
SECTION 1
SERVICING NOTES
MODEL IDENTIFICATION
• HOW TO CHANGED THE CERAMIC FILTERS
This model is used two ceramic filters of CF2, CF3.
You must use same type of color marked ceramic filters in order
to meet same specifications.
Therefore, the ceramic filter must change two pieces together since
it's supply two pieces in one package as a spare parts.
You must use same type of color marked ceramic filters in order
to meet same specifications.
Therefore, the ceramic filter must change two pieces together since
it's supply two pieces in one package as a spare parts.
mark
center
frequency
red
10.70 MHz
blue
10.67 MHz
orange
10.73 MHz
black
10.64 MHz
white
10.76 MHz
mark
CF2
CF3
mark
S
MODEL NO.
MADE IN MALAYSIA
ICF-CD820/CD820L
US, Canadian models: AC: 120 V 60 Hz 15 W
Other models: AC: 220 – 230 V 50 Hz 15 W
Other models: AC: 220 – 230 V 50 Hz 15 W
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