Sony ST-JX661 Bedienungsanleitung

ST-JX661/SE200

FM STREO/FM-AM TUNER

US Model

Canadian Model

ST-JX661

AEP Model

UK Model

E Model

Australian Model

ST-JX661/SE200

Chinese Model

ST-SE200

SERVICE MANUAL

MICROFILM

SPECIFICATIONS

Photo : ST-JX661

FM tuner section

Frequency range 87.5–108 MHz

Antenna terminals 75 ohms, unbalanced

Intermediate frequency 10.7 MHz

Sensitivity at 50 dB quieting (mono) 22.1 dBf, 7µV/75Ω

(stereo) 42.1dBf, 7µV/75Ω

Usable sensitivity (IHF) 19.5 dBf, 5µV/75Ω

at 75 kHz deviation

S/N 80 dB (mono), 75 dB (stereo)

Harmonic distortion at 1 kHz

0.3% (mono), 0.5% (stereo)

Frequency response 30 Hz–15 kHz

(+0.5/–2.0 dB)

Separation 35 dB at 1 kHz

Selectivity 55 dB at 400 kHz

Output at 75 kHz deviation

775 mV, 4.7 kilohms

AM tuner section

Frequency range US, Canadian model :

531–1,710 kHz (9 kHz)

530–1,710 kHz (10 kHz)

AEP, UK, German, Italian model :

522–1,611 kHz (9 kHz)

E, Singapore, Australian, Chinese, Malaysia,

Saudi Arabia model :

531–1,602 kHz (9 kHz)

530–1,710k Hz (10 kHz)

Intermediate frequency 450 kHz

Usable sensitivity (with AM loop antenna) AM : 500µV/m

Signal-to-noise ratio 54 dB (500mV/m, 999 kHz)

Harmonic distortion 0.5 % (50 mV/m, 400Hz)

Selectivity 50 dB

General

Power requirements US, Canadian model :

120 V AC, 60 Hz

AEP, German, Italian model :

220-230 V AC, 50/60Hz

UK, Australian model :

240 V AC, 50/60Hz

E, Singapore, Chinese, Malaysia,

Saudi Arabia model :

110-120 V/220-240 V AC,

50/60 Hz adjustable

Power consumption 7 W

Dimensions 430 x 82 x 279 mm (w/h/d) (17 x

31/4x 11 inches)

Mass Approx. 2.4 kg (5 lb 4 oz)

Supplied accessorise Audio cord (1)

AM loop antenna (1)

FM wire antenna (1)

Design and specifications are subject to change without notice.

– 2 –

TABLE OF CONTENTS

Section Title Page

Specifications ................................................................................1

1. GENERAL

Location of Controls ...............................................................3

2. ADJUSTMENTS ...............................................................4

3. EXPLANATION OF ICTERMINALS..........................5

4. DIAGRAMS

4-1. Circuit Boards Location...................................................7

4-2. Printed Wiring Boards......................................................8

4-3. Schematic Diagram........................................................11

5. EXPLODED VIEW

5-1. Front Section..................................................................15

6. ELECTRICAL PARTS LIST ........................................17

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.

LEAKAGETEST

The AC leakage from any exposed metal part to earth ground and

from all exposed metal parts to any exposed metal part having a re-

turn to chassis, must not exceed 0.5mA (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.

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 aVOM

or battery-operatedAC voltmeter. The “limit” indication is 0.75V,

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)

Earth Ground

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

Voltmeter

(0.75V)

0.15 F

1.5k

Ω

To Exposed Metal

Parts on Set

MODEL NO. ST-JX661

ST-SE200

FM STEREO/FM-AM TUNER

MODEL IDENTIFICATION

– Model Number Label –

US, Canadian model : AC 120⁄60Hz

UK, Australian model : AC 240⁄50Hz

AEP, German, Italian model : AC 220–230V⁄50Hz

E, Singapore, Chinese,

Malaysia, Saudi Arabia model : AC 110–120 V/220–240 V

⁄50/60 Hz

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 COMPOSANTS QUE PAR DES PIÈCES SONY

DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU

DANS LES SUPPLÉMENTS PUBLIÉS PAR SONY.

SAFETY-RELATED COMPONENT WARNING!!

COMPONENTS IDENTIFIED BY MARK !OR DOTTED LINEWITH

MARK !ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS

LIST ARE CRITICALTO SAFE OPERATION.

REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE

PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN

SUPPLEMENTS PUBLISHED BY SONY.

– 3 –

SECTION 1

GENERAL

345

1POWER button

2MEMORY SCAN button

3STEREO/MONO button

5Numeric buttons

6TUNING buttons

7MEMORY button

4Display window 8BAND button

LOCATION OF CONTROLS

– 4 –

TUNER SECTION

Note 1 : The adjustment should be performed in the publication.

(AM nFM)

Note 2 : As a front-end (FE1) is difficult to repair if faulty, replace

it with new one.

AM Section Adjustment

Setting :

set

loop antenna A loop antenna B

60cm

AM RF signal

generator

Carrier frequency : 1,050kHz (US, Canadian)

999kHz (EXCEPT US, Canadian)

Modulation : 400Hz, 30% modulation

FM Section Adjustment

Setting :

set

FM ANTENNA terminal (TM1

)

Ω

coaxial

FM RF signal

generator

Carrier frequency : 98MHz

Modulation : 1kHz, 75kHz deviation

AMTuned Indication Lighting Level Adjustment

Band : AM

Procedure :

1. Set loop antennaA so that the loop antenna B input level becomes

316.2µV (50dBµ)

2. Tune the set to 1,050kHz (US, Canadian) or 999kHz (EXCEPT

US, Canadian).

3. Adjust RV41 so that the TUNED light up.

4. Confirm that the TUNED light off with AM RF signal generator

output level set at 251.2µV (48dBµ)

5. Confirm the FM tuned indication lighting level and adjust if nec-

essary.

Adjustment Location : TUNER board

SECTION 2

ADJUSTMENTS

FMTuned Indication Lighting Level Adjustment

Band : FM

Procedure :

1. Supply a 31.6µV (30dBµ) 98 MHz signal to the ANTENNA ter-

minal (TM1).

2. Tune the set to 98MHz.

3. Adjust RV42 so that the TUNED light up.

4. Confirm that the TUNED light off with FM RF signal generator

output level set at 25.1µV (28dBµ).

Adjustment Location : TUNER board

RV41 : AM Tuned Level

RV42 : FM Tuned Leve

[ TUNER BOARD ]

– Component side –

– 5 –

SECTION 3

EXPLANATION OF ICTERMINAL

IC701 µPD78042AGF-078-3B9 (FL DRIVER)

Pin No. Pin name I/O Description

1G7 O

2G6 O

3G5 O

4 G4 O FL drive.

5G3 O

6G2 O

7G1 O

8 VDD – Power supply (+5V)

9 PLL CE O Chip enable output to PLL IC.

10 PLL DATA OUT O PLL data output.

11 PLL CLK I PLL clock input.

12 PLL DATA IN I PLL data input.

13 AST I Tuned signal input.

14 ST I Stereo signal input.

15 NC – Not used. (Ground)

16 NC – Not used. (Ground)

17 RESET I System reset input.

18 DC CUT – Not used. (Open)

19 NC – Not used. (Open)

20 AVSS (GND) – Ground.

21 MUTE O Line mute output.

22 NC – Not used. (Open)

23 NC – Not used. (Open)

24 NC – Not used. (Open)

25 MODEL – Not used. (Ground)

26 KEY 3 I Key input.

27 KEY 2 I Key input.

28 KEY 1 I Key input.

29 AVDD – Power supply (+5V)

30 AVREF – Analog voltage reference.

31 GND – Ground.

32 NC – Not used. (Open)

33 GND – Ground.

34 X1 I System clock. (5MHz)

35 X2 O System clock. (5MHz)

36 NC – Not used. (Open)

37 POWER SW I Power switch input.

38 NC – Not used. (Ground)

39 NC – Not used. (Ground)

40 NC – Not used. (Ground)

– 6 –

Pin No. Pin name I/O Description

41 NC – Not used. (Ground)

42 NC – Not used. (Ground)

43 NC – Not used. (Ground)

44 POWER O Power ON/OFF control signal output.

45 NC – Not used. (Ground)

46 NC – Not used. (Ground)

47 NC – Not used. (Ground)

48 IC – Not used. (Ground)

49 NC – Not used. (Ground)

50 RIN I Reset signal input.

51 NC – Not used. (Ground)

52 VDD – Power supply. (+5V)

53 IS 1 I

54 IS 2 I Model identification check input.

55 IS 3 I

56 IS 4 I

57 GND – Ground.

58 P18 O

59 P17 O

60 P16 O

61 P15 O

62 P14 O

63 P13 O

64 P12 O FL drive.

65 P11 O

66 P10 O

67 P9 O

68 P8 O

69 P7 O

70 P6 O

71 VFL – FL drive –25V power supply.

72 P5 O

73 P4 O

74 P3 O

75 P2 O

76 P1 O FL drive.

77 G11 O

78 G10 O

79 G9 O

80 G8 O

– 15 –

SECTION 5

EXPLODED VIEW

rThe mechanical parts with no reference num-

ber in the exploded views are not supplied.

rHardware (# mark) list and accessories and

packing materials are given in the last of this

parts list.

Thecomponents identifiedby mark !

or dotted line with mark !are critical

for safety.

Replace only with part number speci-

fied.

Les composants identifiés par une

marque !sont critiques pour la

sécurité.

Ne les remplacer que par une pièce

portant le numéro spécifié.

rAbbreviation

CND : Canadian SP : Singapore

AUS : Australian G : German

EA : Saudi Arabia IT : Italian

MY : Malaysia CH : Chinese

5-1. FRONT SECTION

NOTE :

r-XX, -X mean standardized parts, so they may

have some difference from the original one.

rItems marked “ * ”are not stocked since they

are seldom required for routine service. Some

delayshould beanticipated when ordering these

items.

10 11

17 17

22 22

FL701

PT901

SE200 :

AUS,UK model

SE200 : AUS model

SE200

SE200 : UK model

E model

US, CND model JX661 : UK model

JX661

AEP, IT, G, EA, MY, CH, SP,

JX661 : AUS model

– 16 –

1 4-979-926-01 PANEL, FRONT (JX661)

1 4-979-926-11 PANEL, FRONT (SE200)

2 4-979-927-01 WINDOW

3 4-963-404-21 EMBLEM (5-A), SONY

4 4-980-109-01 BUTTON (P-M)

*5 1-659-920-11 SW BOARD

*6 4-921-941-01 CUSHION (FL)

*7 4-979-925-01 HOLDER (FL-D)

*8 4-979-924-01 CASE (407026)

9 3-704-366-01 SCREW (CASE) (M3X8)

*10 1-659-922-11 JOINT-2 BOARD

*11 1-659-921-11 JOINT-1 BOARD

*12 3-703-244-00 BUSHING (2104), CORD

13 3-704-515-01 SCREW (BV/RING)

*14 4-979-923-01 PANEL, BACK (JX661:US)

*14 4-979-923-11 PANEL, BACK (JX661:AEP,G,IT)

*14 4-979-923-21 PANEL, BACK (JX661:E)

*14 4-979-923-31 PANEL, BACK (JX661:UK)

*14 4-979-923-41 PANEL, BACK (JX661:CND)

*14 4-979-923-61 PANEL, BACK (JX661:SP)

*14 4-979-923-71 PANEL, BACK (JX661:AUS)

*14 4-980-114-01 PANEL, BACK (SE200:AEP,IT)

*14 4-980-114-11 PANEL, BACK (SE200:E,SP,EA,MY,CH)

*14 4-980-114-21 PANEL, BACK (SE200:UK)

*14 4-980-114-31 PANEL, BACK (SE200:AUS)

*15 A-4389-238-A TUNER BOARD, COMPLETE (US,CND)

*15 A-4389-243-A TUNER BOARD, COMPLETE (AEP,UK,G,IT)

*15 A-4389-245-A TUNER BOARD, COMPLETE (E,SP,EA,MY,CH)

*15 A-4389- -A TUNER BOARD, COMPLETE (AUS)

*16 3-346-265-31 HOLDER, PC BOARD

17 4-951-620-01 SCREW (2.6X8), +BVTP

18 X-3371-405-1 FOOT (SMALL) ASSY (JX661)

*19 A-4389-239-A DISPLAY BOARD, COMPLETE(US,CND)

*19 A-4389-244-A DISPLAY BOARD, COMPLETE(AEP,UK,G,IT)

*19 A-4389-246-A DISPLAY BOARD, COMPLETE(E,SP,EA,MY,CH)

*19 A-4389-2 -A DISPLAY BOARD, COMPLETE(AUS)

20 4-979-928-01 BUTTON (FUNCTION)

21 4-979-929-01 BUTTON (ENTER)

!22 1-558-943-41 CORD, POWER (E)

!22 1-558-945-21 CORD, POWER (POLAR.SPT-1)(US,CND)

!22 1-575-651-21 CORD, POWER (AEP,IT,G,EA,MY,CH,SP,

JX661:AUS)

!22 1-696-845-11 CORD, POWER (SE200:AUS)

!22 1-751-529-11 CORD, POWER (SE200:UK)

!22 1-769-639-11 CORD, POWER (JX661:UK)

23 4-956-370-12 BAND, PLUG FIXED (SE200:AUS,UK)

24 X-4947-207-1 FOOT ASSY (F50150S) (SE200)

25 4-977-593-11 RING (DIA 50), ORNAMENTAL (SE200)

FL701 1-517-516-11 INDICATOR TUBE, FLUORESCENT

!PT901 1-429-466-11 TRANSFORMER, POWER (US,CND)

!PT901 1-429-467-11 TRANSFORMER, POWER (EXCEPT US,CND)

Ref. No. Part No. Description Remark Ref. No. Part No. Description Remark

––––––– ––––––– –––––––––– ––––––– ––––––– ––––––– –––––––––– ––––––

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