– 2 –
Notes on chip component replacement
• Never reuse a disconnected chip component.
• Notice that the minus side of a tantalum capacitor may be dam-
aged 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 PUB-
LISHED BY SONY.
CF2
CF3
mark
Mark
Center frequency
red
10.70 MHz
blue
10.67 MHz
orange
10.73 MHz
black
10.64 MHz
white
10.76 MHz
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.
SERVICING NOTES
Summary of Contents for Dream Machine ICF-C290
Page 3: ... 3 SECTION 1 GENERAL This section is extracted from instruction manual ...
Page 6: ......
Page 7: ... 10 9 4 2 SCHEMATIC DIAGRAM EXCEPT E MODEL See page 15 for IC Block Diagrams ICF C290 C290L ...
Page 8: ......
Page 9: ... 14 13 4 4 SCHEMATIC DIAGRAM E MODEL See page 15 for IC Block Diagrams ICF C290 C290L ...
