Sony ICF-SW77 Service Manual

CF-SW77
SERVICE MANUAL
US Model
Canadian Model
AEP Model
UK Model
E Model
Australian Mode!
SPECIFICATIONS
Circuit system
Frequency range
FM: Single conversion
superheterodyne
AM: Dual conversion
superheterodyne
Type
Frequency coveraae
FM*
LW
MW
sw
1
2
3
4
76.0-108MHz
87.5-108MHz
87.5-108MHz
87.5-108MHz
150-
150-
150-285kHz
150-285kHz
531
531-1,602kHz
— 29,999.9kHz
— 29,999.9kHz
— 26,100kHz
3,850-26,100kHz
*Stereo reception when using stereo earphones
Type 1: Countries that are not listed below
Type 2: Germany, Austria, and Scandinavian countries
Type 3: Saudi Arabia
Type 4: Italy
Intermediate frequency FM:10.7MHz
LW/MW/SW: 55.845MHz (first)
455kHz (second)
Antennas FM/SW: Telescopic antenna
MW/LW: Built-in ferrite bar
antenna
Speaker Approx. 125 x 77 mm (5 x 3 in.)
QQ
Power output 400 mW (at 10 % harmonic
distortion)
Outputs Recording output jack (stereo minijack)
Output level 138 mV
(-15 dB)
Output impedance less than
10 kilohm
Earphone jack (stereo minijack)
MICROFILM
Power requirements 6 V DC
Four R14 (size C) batteries
DC IN 6 V jack accepts:
• supplied AC power adaptor
(except for Australian model)
Where
purchased
AC power
adaptor
Operating
voltage
US model
AC-E604
120 VAC,
60 Hz
Canadian
model
AC-E602
110-120 V/
220-120 V
AC, adjust¬
able, 50/
60 Hz
UK model
AC-E603 240 V AC,
50 Hz
AEP, E
Australian
model
AC-E600
110-120 V/
220-120 V
AC, adjust¬
able, 50/
60 Hz
• DCC-E160L car battery cord
(not supplied) for use with 12 V
car battery
Approx. 20 hours (FM reception)
Approx. 12 hours (AM reception)
of listening for fours hours a day
at a normal volume, using Sony
SUM-2(NS) batteries.
— Continued on next page -
LW/MW/SW/FM STEREO
SYNTHESIZED RECEIVER
Battery life
PLL

Sony ICF-SW77 Specifications

Signal Circuitry

FM signal circuitry	Superheterodyne
AM signal circuitry	Dual Conversion Superheterodyne

Frequency Range

FM frequency range	76.5-108 MHz
LW/MW/SW frequency range	150-29999 kHz

Antenna System

LW/AM antenna	Built-in Ferrite Bar Antenna
SW/FM antenna	Telescoping Antenna
External antenna input	Yes

Outputs

Stereo headphone output	Stereo Mini jack
Recording output	Mini jack
Speaker size	4" (10cm)

Power Requirements

DC power requirement	6V
Battery type	C Batteries x 4 (optional)
AC power requirement	120V, 60Hz with AC Adaptor, supplied

Battery Life

FM reception battery life	45 hours
AM reception battery life	32 hours

Dimensions and Weight

Dimensions (WHD)	10 [7]⁄8" x 6 [13]⁄16" x 1 [13]⁄16" (276 x 172.5 x 46.5mm)
Weight with batteries	3 lbs 4 oz (1.48kg)