Read Sony ICF-C160 Service Manual online
MICROFILM
ICF-C160
FM/AM CLOCK RADIO
SPECIFICATIONS
FEATURES
SERVICE MANUAL
US Model
Canadian Model
AEP Model
E Model
Australian Model
Frequency range
FM: 87.5–108 MHz
AM: 526.5–1606.5kHz (Italian)
AM: 526.5–1606.5kHz (Italian)
530–1605 kHz (EXCEPT Italian)
Speaker
Approx. 6.6 cm (2
5
/
8
inches) dia. 8 ohms
Power output
120 mW (at 10% harmonic distortion)
Power requirements
120 V AC, 60 Hz
For power backup: 9 V DC, one 6F22 battery
For power backup: 9 V DC, one 6F22 battery
Battery life
Approx. 35 hours using the Sony S-006 P (U)
battery
battery
Dimensions
Approx. 120 124 132 mm (w/h/d)
(4
(4
3
/
4
×
5
×
5
1
/
4
inches) incl. projecting parts
and controls
Mass
Approx. 660 g (1 Ib 7.2 oz) not incl. battery
Design and specifications are subject to change
without notice.
without notice.
• Dual alarm
• Date display
• Full power backup function to keep the clock, the
• Date display
• Full power backup function to keep the clock, the
alarm (radio and buzzer) and the radio operation
during a power interruption with a 6F22 battery
(not supplied) installed.
during a power interruption with a 6F22 battery
(not supplied) installed.
– 2 –
Mark 1 Mark 2
Center
frequency
red
—
10.70MHz
blue
—
10.67MHz
orange
—
10.73MHz
black
—
10.64MHz
white
—
10.76MHz
white
white
10.75 MHz
yellow
—
10.79 MHz
HOW TO CHANGE THE FM CERAMIC FILTERS
This model is used two ceramic filters of CF1 and 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.
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 CHECK-OUT
After correcting the original service problem, perform the fol-
lowing 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.
lowing 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 0.5 mA (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 0.5 mA (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” indica-
tion is 0.75 V, so analog meters must have an accurate low-
voltage scale. The Simpson 250 and Sanwa SH-63Trd are ex-
amples of a passive VOM that is suitable. Nearly all battery
operated digital multimeters that have a 2 V AC range are
suitable. (See Fig. A)
tion is 0.75 V, so analog meters must have an accurate low-
voltage scale. The Simpson 250 and Sanwa SH-63Trd are ex-
amples of a passive VOM that is suitable. Nearly all battery
operated digital multimeters that have a 2 V AC range are
suitable. (See Fig. A)
CF1
mark 2
CF3
mark 2
mark 1
Fig. A.
Using an AC voltmeter to check AC leakage.
1.5 k
Ω
0.15
µ
F
AC
voltmeter
(0.75 V)
voltmeter
(0.75 V)
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 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.
Note 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.
aged by heat.
CORD DRESSING
(POWER, ANTENNA)
(POWER, ANTENNA)
1) Connect the power cord and antenna cord as shown in the
figure.
2) Mount the cord stopper with screws (P3
×
10).
Note: Tighten completely the screws (P3
×
10).
SECTION 1
SERVICING NOTE
chassis
antenna cord
power cord
screw
(P3
(P3
×
10)
cord stopper
– 3 –
SECTION 2
GENERAL
This section is extracted from
instruction manual.
– 4 –
FRONT PANEL ASS’Y
Note:
Follow the disassembly procedure in the numerical order given.
SECTION 3
DISASSEMBLY
4
three claws
2
screw
(P3
(P3
×
10)
3
cabinet (upper)
1
four screws
(P3
(P3
×
35)
4
three claws
1
battery case lid
2
three claws
3
cover
4
battery snap
5
speaker cord
6
cord (4 core)
7
two claws
8
radio board
9
chassis
MAIN BOARD, CHASSIS
5
front panel ass’y
cover
