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SERVICE MANUAL
US Model
Canadian Model
AEP Model
STR-DE197
FM STEREO/FM-AM RECEIVER
AUDIO POWER SPECIFICATIONS
POWER OUTPUT AND TOTAL
HARMONIC DISTORTION:
(Models of area code US only)
With 8 ohm loads, both channels driven, from
20 20,000 Hz; rated 100 watts per channel
minimum RMS power, with no more than
0.09 % total harmonic distortion from 250
milliwatts to rated output.
Amplifier section
POWER OUTPUT
Models of area code US, CND
Power Output at Stereo Mode
(8 ohms 1 kHz, THD 0.7 %)
125 W + 125 W 1)
Models of area code AEP
Power Output at Stereo Mode
(8 ohms 1 kHz, THD 0.7 %)
100 W + 100 W 1)
1) Measured under the following conditions:
Area code
Power requirements
US, CND
120 V AC, 60 Hz
AEP
230 V AC, 50 Hz
Frequency response
CD, MD/TAPE,
20 Hz 50 kHz
VIDEO 1, 2
+0/0.5 dB (with bass
boost and tone bypassed)
Inputs (Analog)
CD, MD/TAPE,
Sensitivity: 500 mV
VIDEO 1, 2
Impedance: 50 kilohms
S/N 2) : 85 dB
(A, 500 mV 3) )
2) INPUT SHORT (with bass boost and tone bypassed).
3) Weighted network, input level.
SPECIFICATIONS
Outputs (Analog)
MD/TAPE (OUT),
Voltage: 500 mV
VIDEO 1 (AUDIO OUT)
Impedance: 10 kilohms
Bass Boost:
+8 dB at 70 Hz
Tone:
±10 dB at 100 Hz and
10 kHz
FM tuner section
Tuning range
87.5 108.0 MHz
Antenna
FM wire antenna
Antenna terminals
75 ohms, unbalanced
Intermediate frequency
10.7 MHz
Sensitivity
Mono:
18.3 dBf, 2.2 µV/75 ohms
Stereo:
38.3 dBf, 22.5 µV/75 ohms
Usable sensitivity
11.2 dBf, 1 µV/75 ohms
S/N
Mono:
76 dB
Stereo:
70 dB
Harmonic distortion at 1 kHz
Mono:
0.3%
Stereo:
0.5%
Separation
45 dB at 1 kHz
Frequency response
30 Hz 15 kHz,
+0.5/2 dB
Selectivity
60 dB at 400 kHz
Ver. 1.2 2006. 02
9-877-864-03
2006B04-1
© 2006. 02
Sony Corporation
Home Audio Division
Published by Sony Techno Create Corporation
Continued on next page
Photo: Black type
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STR-DE197
AM tuner section
Tuning range
Models of area code US, CND
With 10-kHz tuning scale: 530 1,710 kHz 4)
With 9-kHz tuning scale: 531 1,710 kHz 4)
Models of area code AEP
With 9-kHz tuning scale: 531 1,602 kHz
Antenna
Loop antenna
Intermediate frequency
450 kHz
Usable sensitivity
50 dB/m (at 1,000 kHz or
999 kHz)
S/N
54 dB (at 50 mV/m)
Harmonic distortion
0.5 % (50 mV/m,
400 Hz)
Selectivity
At 9 kHz:
35 dB
At 10 kHz:
40 dB
4) You can change the AM tuning scale to 9 kHz or
10 kHz. After tuning in any AM station, turn off
the receiver. Hold down PRESET TUNING + and
press ?/1. All preset stations will be erased when
you change the tuning scale. To reset the scale to
10 kHz (or 9 kHz), repeat the procedure.
General
Power requirements
Area code
Power consumption
US, CND
120 V AC, 60 Hz
AEP
230 V AC, 50/60 Hz
Power consumption
Area code
Power consumption
US
190 W
CND
270 VA
AEP
210 W
Power consumption (during standby mode)
0.5 W
AC outlets
Area code
AC outlets
US, CND
1 switched, 120 W/1A MAX
AEP
1 switched, 100 W MAX
Dimensions
430
× 132.5 × 302 mm
(17
× 5 1/4 × 11 7/8 inches)
including projecting parts
and controls
Mass (Approx.)
7.0 kg (15 lb 7 oz)
Supplied accessories
FM wire antenna (1)
AM loop antenna (1)
Remote commander RM-U185 (1)
R6 (size-AA) batteries (2)
Design and specifications are subject to change without
notice.
·Abbreviation
CND: Canadian model
1.5 k
0.15 µF
AC
voltmeter
(0.75 V)
To Exposed Metal
Parts on Set
Earth Ground
Fig. A. Using an AC voltmeter to check AC leakage.
SAFETY CHECK-OUT
After correcting the original service problem, perform the following
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 microamperes).
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.
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" indication is 0.75
V, so analog meters must have an accurate low-voltage scale. The
Simpson 250 and Sanwa SH-63Trd are examples of a passive
VOM that is suitable. Nearly all battery operated digital
multimeters that have a 2V AC range are suitable. (See Fig. A)
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK 0 OR DOTTED LINE
WITH MARK 0 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.
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!!
LES COMPOSANTS IDENTIFIÉS PAR UNE MARQUE 0 SUR LES
DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES
SONT CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT.
NE REMPLACER CES COMPOSANTS QUE PAR DES PIÈCES
SONY DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL
OU DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.
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TABLE OF CONTENTS
1. GENERAL
Main unit ................................................................................. 4
Remote button description ....................................................... 6
2. DISASSEMBLY
2-1. Case ..................................................................................... 7
2-2. Front Panel Section ............................................................. 8
2-3. Back Panel ........................................................................... 8
2-4. Main Board ......................................................................... 9
3. TEST MODE ..................................................................... 10
4. DIAGRAMS
4-1. IC Pin Description ............................................................. 11
4-2. Circuit Boards Location .................................................... 13
4-3. Block Diagram Main Section ...................................... 15
4-4. Block Diagram Power Section .................................... 16
4-5. Printed Wiring Boards Main Section .......................... 17
4-6. Schematic Diagram Main Section (1/2) ...................... 18
4-7. Schematic Diagram Main Section (2/2) ...................... 19
4-8. Printed Wiring Boards Panel Section .......................... 20
4-9. Schematic Diagram Panel Section .............................. 21
4-10. IC Block Diagrams ............................................................ 22
5. EXPLODED VIEWS
5-1. Case Section ...................................................................... 23
5-2. Front Panel Section ........................................................... 24
5-3. Chassis Section ................................................................. 25
6. ELECTRICAL PARTS LIST ........................................ 26
STR-DE197
MODEL IDENTIFICATION
-- BACK PANEL --
Part No.
MODEL
PART No.
US
4-253-299-0s
AEP
4-253-299-1s
CND
4-253-299-3s
·Abbreviation
CND: Canadian model
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STR-DE197
SECTION 1
GENERAL
This section is extracted
from instruction manual.
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STR-DE197