ICF-C290/C290L
SERVICE MANUAL
Ver 1.1 1998. 10
With SUPPLEMENT 1
(9-925-745-81)
Photo: ICF-C290
SPECIFICATIONS
AEP Model
ICF-C290/C290L
UK Model
E Model
Austr alian Model
ICF-C290
MICROFILM
ICF-C290
FM/AM CLOCK RADIO
ICF-C290L
FM/LW CLOCK RADIO
SERVICING NOTES
HOW TO CHANGED THE CERAMIC FILTERS
This model is used two ceramic filters of 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 two pieces together
since it's supply two pieces in one package as a spare parts.
Mark Center frequency
CF
mark
red 10.70 MHz
blue 10.67 MHz
orange 10.73 MHz
CF3
black 10.64 MHz
white 10.76 MHz
Notes on chip component replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be damaged by heat.
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.
– 2 –
SECTION 1
GENERAL
This section is extracted from
instruction manual.
– 3 –
SECTION 2
SETTING
SETTING THE POWER CORD
Set the power cord as illustrated below, then install the lower cabinet.
lower cabine
KNOB SETTING
5
MAIN board
7
claws
A
power cord
3
Turn shaft of CV1 to the
arrow A direction fully.
4
B
Turn RV1 to the arrow B
direction fully.
6
claw
– 4 –
2
Turn the knob (VOL) to the
arrow B direction fully.
1
Turn the knob (tuning) to the
arrow A direction fully.