Sony STRDE-197 Service manual

STR-DE197

SERVICE MANUAL

Ver. 1.2 2006. 02

Photo: Black type

SPECIFICATIONS

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

Models of area code AEP Power Output at Stereo Mode (8 ohms 1 kHz, THD 0.7 %)

100 W + 100 W

1) Measured under the following conditions: Area code Power requirements

US, CND 120 V AC, 60 Hz AEP 230 V AC, 50 Hz

US Model

Canadian Model

AEP Model

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

Frequency response CD, MD/TAPE, 20 Hz – 50 kHz

VIDEO 1, 2 +0/–0.5 dB (with bass

Inputs (Analog) CD, MD/TAPE, Sensitivity: 500 mV

VIDEO 1, 2 Impedance: 50 kilohms

2) INPUT SHORT (with bass boost and tone bypassed).

3) Weighted network, input level.

boost and tone bypassed)

S/N

: 85 dB

(A, 500 mV

)

– Continued on next page –

FM STEREO/FM-AM RECEIVER

STR-DE197

AM tuner section

Tuning range

Models of area code US, CND With 10-kHz tuning scale: 530 – 1,710 kHz With 9-kHz tuning scale: 531 – 1,710 kHz

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)

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

Mass (Approx.) 7.0 kg (15 lb 7 oz)

0.5 W

(17 × 5 1/4 × 11 7/8 inches)

including projecting parts

and controls

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)

To Exposed Metal Parts on Set

0.15 µF

1.5 k

Ω

AC voltmeter (0.75 V)

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

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.

Earth Ground

Fig. A. Using an AC voltmeter to check AC leakage.

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.

STR-DE197

MODEL IDENTIFICATION

— BACK PANEL —

MODEL PART No.

US 4-253-299-0s AEP 4-253-299-1s CND 4-253-299-3s

•Abbreviation CND: Canadian model

Part No.

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

SECTION 1

GENERAL

This section is extracted from instruction manual.

STR-DE197

SECTION 2

DISASSEMBLY

Note : This set can be disassemble according to the following sequence.

SET

2-1. CASE

(Page 7)

STR-DE197

2-2. FRONT PANEL SECTION

(Page 8)

Note : Follow the disassembly procedure in the numerical order given.

2-3. BACK PANEL

(Page 8)

2-1. CASE

two screws

(case 3 TP2)

2-4. MAIN BOARD

(Page 9)

two screws

(case 3 TP2)

cas

two screws

(case 3 TP2)

STR-DE197

2-2. FRONT P ANEL SECTION

CNP801

two screws

(BVTP3 x 8)

CNS3

front panel section

2-3. BACK P ANEL

CNP901

CNP905

back panel (DE10)

CNS2

six screws (BVTP3 x 8)

three screws

(BVTP3 x 8)

two screws

(BVTP3 x 8)

two screws

(BVTP3 x 8)

two screws

(BVTP3 x 8)

connector

2-4. MAIN BOARD

two screws

(+BV SUMITITE (B3))

screw

(+BV SUMITITE (B3))

CNP904

CNP902

CNP903

two screws

(+BV SUMITITE (B3))

screw

MAIN boar

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 display will be repeated whenever the five function buttons are pressed.

• Operation of function buttons

all light on half light on 1 half light on 2 all light of

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 button to turn on the main power.

2. The message “AUTO-BETICAL SELECT” are scrolled for a moment and the receiver starts scanning.

?/1

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.

ex.) US, Canadian model : U AEP model : CE *.

*.**

Software version Area

STR-DE197

SECTION 4

DIAGRAMS

4-1. IC PIN DESCRIPTION

• IC201 µPD78045FGF-134-3B9 (SYSTEM CONTROLLER, FL DISPLAY DRIVER)

Pin No. Pin Name I/O Pin Description

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

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

FM/AM signal meter voltage detection signal input from FM/AM tuner pack. (AEP model only)

+ 23 hidden pages

Sony STRDE-197 Service manual

TABLE OF CONTENTS

GENERAL

DISASSEMBLY

2-1. CASE

front panel section

TEST MODE

DIAGRAMS