STRDE-197
Table of contents
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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 TOT AL
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
– Continued on next page –
Photo: Black type
2
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 V A
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
Ω
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 A C 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 V OM
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 P ARTS 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 P AR 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.
3
TABLE OF CONTENTS
1. GENERAL
Main unit ................................................................................. 4
Remote button description....................................................... 6
2. DISASSEMBL Y
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
4
STR-DE197
SECTION 1
GENERAL
This section is extracted
from instruction manual.
5
STR-DE197
6
STR-DE197
7
STR-DE197
Note : This set can be disassemble according to the following sequence.
SECTION 2
DISASSEMBLY
2-1. CASE
2-1. CASE
(Page 7)
2-2. FRONT PANEL SECTION
(Page 8)
2-3. BACK PANEL
(Page 8)
SET
2-4. MAIN BOARD
(Page 9)
Note : Follow the disassembly procedure in the numerical order given.
1
two screws
(case 3 TP2)
2
two screws
(case 3 TP2)
3
two screws
(case 3 TP2)
4
cas
e
8
STR-DE197
2-2. FRONT P ANEL SECTION
2-3. BACK P ANEL
6
front panel section
4
two screws
(BVTP3 x 8)
1
CNS2
2
CNS3
3
CNP801
5
six screws
(BVTP3 x 8)
1
connector
2
CNP905
3
CNP901
4
three screws
(BVTP3 x 8)
6
two screws
(BVTP3 x 8)
7
two screws
(BVTP3 x 8)
5
two screws
(BVTP3 x 8)
8
back panel (DE10)
9
STR-DE197
2-4. MAIN BOARD
5
two screws
(+BV SUMITITE (B3))
6
screw
(+BV SUMITITE (B3))
8
MAIN boar
d
7
screw
(+BV SUMITITE (B3))
4
two screws
(+BV SUMITITE (B3))
1
CNP902
3
CNP904
2
CNP903
10
STR-DE197
SECTION 3
TEST MODE
Fluorescent Indicator T ube T est Mode
All fluorescent segments are tested. When this test is activated, all
segments turn on at the same time, then each segment turns on one
after another.
Procedure:
1. While depressing the [VIDEO 1], [VIDEO 2], [MD/TAPE], [CD] and
the [TUNER] buttons simultaneously, press the ?/1 button to
turn on the main power.
2. The FL tube will illuminate in half light on. The following dis-
play will be repeated whenever the five function buttons are
pressed.
• Operation of function buttons
3. Press any button other than the function buttons to release the
check mode.
AUTO-BETICAL Check Mode (AEP model)
To auto-scanning and memories of RDS station.
Procedure:
1. While depressing the [MEMORY/ENTER] button, press the
?/1
button to turn on the main power.
2. The message “AUTO-BETICAL SELECT” are scrolled for a
moment and the receiver starts scanning.
AM T uning Interval Selection Mode (US, Canadian model)
Either 9 kHz step or 10 kHz step can be selected for the AM tuning
interval.
Procedure:
1. While depressing the [PRESET TUNING +] button or the [TUN-
ING/CHAR +] button, press the ?/1 button to turn on the main
power.
2. Either the message “9k STEP” or “10k STEP” appears for a
moment and select the desired step.
Software Version Display Mode
The software version is displayed.
Procedure:
1. While depressing the [SPEAKER B] and the [VIDEO 1] buttons
simultaneously, press the ?/1 button to turn on the main power .
2. The destination and the software version are displayed for a
moment.
all light on half light on 1 half light on 2 all light of
f
ex.) US, Canadian model : U
*
.
**
AEP model : CE
*
.
**
Area
Software version
11
STR-DE197
SECTION 4
DIAGRAMS
1 to 7 DIG7 to DIG1 O Digit drive signal output to the vacuum fluorescent display (FL201).
8 +5V — Power supply pin (+5 V)
9CLOSerial clock signal output to FM/AM tuner pack.
10 DO O Serial data signal output to FM/AM tuner pack.
11 DI I Serial data signal input from FM/AM tuner pack.
12 CE O Serial chip enable signal output to FM/AM tuner pack.
13 VOL DATA O Serial data signal output to sound control IC.
14 VOL CL O Serial clock signal output to sound control IC.
15 RDS DATA I RDS data signal input from FM/AM tuner pack. (AEP model only)
16 PROTECTOR I Overload detection signal input
17 RESET I Reset signal input
18 TUNED I TUNED indicator detection signal input from FM/AM tuner pack.
19 STEREO I STEREO indicator detection signal input from FM/AM tuner pack.
20 AVSS — Analog ground
21 VERSION I Destination select signal input (Fixed at H: US, Canadian model, L: AEP model)
22 FM SIGNAL OUT I
FM/AM signal meter voltage detection signal input from FM/AM tuner pack.
(AEP model only)
23 to 28 AD6 to AD1 I Function keys signal input
29 AVDD — A/D converter power supply pin (+5 V)
30 AV.REF — A/D converter reference voltage input (+5 V)
31 — — Not used. (Connect to AV.REF pin in this set)
32 OPEN — Not used. (Open)
33 GND — Ground
34 X1 I Master clock input (4.19 MHz)
35 X2 O Master clock output (4.19 MHz)
36 REC SW1 O VIDEO 1 ON/OFF signal output
37 REC SW2 O MD/TAPE ON/OFF signal output
38, 39 VOL A, VOL B I Master volume JOG data input A, B
40 FUNC.MUTE O Not used. (Fixed at L in this set)
41 CK O Serial clock signal output to electronic volume IC.
42 DATA O Serial data signal output to electronic volume IC.
43 STB O Serial data strobe signal output to electronic volume IC.
44 SYS.POWER I System power signal input
45 AC MUTE O A-Class mute signal output
46 RDS INT I RDS clock signal input from FM/AM tuner pack. (AEP model only)
47 STOP I Stop signal input from reset/+5.6V regulator IC.
48 VSS — Ground
49 SIRCS I Sircs signal input from remote control receiver IC.
50 TUNER MUTE O Muting control signal output to FM/AM tuner pack.
51 — — Not used. (Open)
52 +5V — Power supply pin (+5 V)
53 BASS B. LED O BASS BOOST LED drive signal output
54 SPK A LED O SPEAKER A LED dri ve signal output
55 SPK B LED O SPEAKER B LED drive signal output
4-1. IC PIN DESCRIPTION
• IC201 µPD78045FGF-134-3B9 (SYSTEM CONTROLLER, FL DISPLAY DRIVER)
Pin No. Pin Name I/O Pin Description
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