Sony MBT-MR1 User manual

SERVICE MANUAL

SPECIFICATIONS

KE-50MR1

FLAT PANEL COLOR TELEVISION

AEP Model

Media Receiver Unit (MBT-MR1)

Power Requirement: 220-240V AC; 50/60 Hz

Power Consumption: 27 W

Standby Power Consumption: 0.6 W

Dimensions (w x h x d):

Approx. 430 x 105 x 360 mm

Weight: Approx. 6 kg

Display Unit (PDM-5000)

Power Requirement: 100-240V AC; 50/60 Hz

Screen Size: 50inches

Approx. 127 cm measured

diagonally

Display Resolution:

1365 dots (horizontal) x 768 lines

(vertical)

Power Consumption: 540W

Standby Power Consumption: 0.6W

Dimensions (w x h x d):

Approx. 1,573 x 856 x 108 mm

Weight: Approx. 53 kg

Panel System:

Plasma Display Panel

TV system:

Depending on your country selection:

B/G/H, D/K, L, I

Colour system:

PAL, SECAM

NTSC 3.58, 4.43 (only Video In)

Aerial:

75 ohm external terminal for VHF/UHF

Channel Coverage:

VHF: E2-E12

UHF: E21-E69

CATV: S1-S20

HYPER: S21-S41

D/K: R1-R12, R21-R69

L: F2-F10, B-Q, F21-F69

I: UHF B21-B69

Rear Terminals:

21-pin Scart connector (CENELEC

standard) including audio/video input,

RGB input, TV audio/video output.

21-pin Scart connector (CENELEC

standard) including audio/video input,

RGB input, TV audio/video output.

3/ (SMARTLINK; selectable)

21-pin Scart connector (CENELEC

standard) including audio/video input, S

video input, selectable audio/video

output and Smartlink interface.

4/ (SMARTLINK; selectable)

21-pin Scart connector (CENELEC

standard) including audio/video

input, RGB input, selectable audio/

video output, and Smartlink interface.

Y: 1 Vp-p, 75 ohms, 0.3V negative sync

PB: 0.7 Vp-p, 75 ohms

PR: 0.7 Vp-p, 75 ohms

audio input (phono jacks)

500 m Vrms (100% modulation),

Impedance: 47 kilo ohms

SUB WOOFER: phono jack

: audio outputs (Left/Right) - phono jacks

CENTRE SPEAKER IN:

Max. 180W (6-ohms)

CTRL S: minijack

AV MOUSE: minijack

KE-50MR1(AEP) 2

Front Terminals:

S video input (4-pin mini DIN):

Y: 1 Vp-p, 75-ohms unbalanced, sync

negative

C: 0.286 Vp-p (Burst signal), 75 ohms

video input (phono jack):

1 Vp-p, 75-ohms unbalanced, sync

negative

audio input (phono jacks):

500 m Vrms (100% modulation),

Impedance: 47 kilo ohms

headphones jack

PC PC Input (15-Dsub)

G: 0.7 Vp-p, 75 ohms, non Sync on Green

B: 0.7 Vp-p, 75 ohms, non Sync on Green

R: 0.7 Vp-p, 75 ohms, non Sync on Green

HD:1-5 Vp-p

VD:1-5 Vp-p

PC PC audio input: minijack

Memory Stick Slot

Sound Output:

15W x 2

Accessories supplied:

• One Remote Control (RM-972)

• Two size AAA batteries (R03 type)

• One Display Interface Cable

• One Coaxial Cable

• One AV Mouse

• Two Mains Leads (Type C-4)

• Two Mains Leads (Type BF)

• Two Mains Leads (Type C-5)

Main leads Type BF and Type C-5

may not be supplied depending on

the country.

• One Cleaning cloth

• One Mains plug holder

Other features:

•Teletext, Fastext, TOPtext

•Sleep Timer

•Smartlink (direct link between your TV set

and a compatible VCR. For more

informationon Smartlink,please referto the

Instruction Manual of your VCR).

It's available either 3 or 4.

(Selectable)

•TV system Autodetection

•Auto Format

PC Input Timing:

Input signal frequency

Horizontal: 15.6 - 90 kHz

Vertical: 48 - 85 Hz

Maximum Resolution: 1600 dots x 1200 lines

KE-50MR1(AEP) 3

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 VOMs that are suitable.

Nearly all battery operated digital multimeters that have a 2 V AC range

are suitable. (See Fig. A)

After correcting the original service problem, perform the following safety

checks before releasing the set to the customer:

1. Check the area of your repair for unsoldered or poorly-soldered

connections. Check the entire board surface for solder splashes and

bridges.

2. Check the interboard wiring to ensure that no wires are “pinched” or

contact high-wattage resistors.

3. Check that all control knobs, shields, covers, ground straps, and

mounting hardware have been replaced. Be absolutely certain that you

have replaced all the insulators.

4. Look for unauthorized replacement parts, particularly transistors, that

were installed during a previous repair. Point them out to the customer

and recommend their replacement.

5. Look for parts which, though functioning, show obvious signs of

deterioration. Point them out to the customer and recommend their

replacement.

6. Check the line cords for cracks and abrasion. Recommend the

replacement of any such line cord to the customer.

7. Check the B+ and HV to see if they are specified values. Make sure your

instruments are accurate; be suspicious of your HV meter if sets always

have low HV.

8. Check the antenna terminals, metal trim, “metallized” knobs, screws, and

all other exposed metal parts for AC Leakage. Check leakage as

described right.

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

1.5 k

Ω

0.15 µFAC

Voltmeter

(0.75 V)

To Exposed Metal

Parts on Set

Earth Ground

SAFETY CHECK-OUT

KE-50MR1(AEP) 4

AVERTISSEMENT!!

ATTENTION AUX COMPOSANTS RELATIFS À LA SÉCURITÉ!!

LES COMPOSANTS IDENTIFIÉS PAR UNE TRAME ET UNE

MARQUE !SONT CRITIQUES POUR LA SÉCURITÉ. NE LES

REMPLACER QUE PAR UNE PIÈCE PORTANT LE NUMÉRO

SPECIFIÉ.LESRÉGLAGESDECIRCUITDONTL’IMPORTANCEEST

CRITIQUE POUR LA SÉCURITÉ DU FONCTIONNEMENT SONT

IDENTIFIÉS DANS LE PRÉSENT MANUEL. SUIVRE CES

PROCÉDURES LORS DE CHAQUE REMPLACEMENT DE

COMPOSANTS CRITIQUES, OU LORSQU’UN MAUVAIS

FONCTIONNEMENT EST SUSPECTÉ.

WARNING!!

SAFETY-RELATED COMPONENT WARNING!!

COMPONENTS IDENTIFIED BY SHADING AND MARK !ON THE

SCHEMATIC DIAGRAMS, EXPLODED VIEWS AND IN THE

PARTS LIST ARE CRITICAL FOR SAFE OPERATION. REPLACE

THESE COMPONENTS WITH SONY PARTS WHOSE PART

NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN

SUPPLEMENTS PUBLISHED BY SONY. CIRCUIT ADJUST-

MENTS THAT ARE CRITICAL FOR SAFE OPERATION ARE

IDENTIFIED IN THIS MANUAL. FOLLOW THESE PROCEDURES

WHENEVER CRITICAL COMPONENTS ARE REPLACED OR IM-

PROPER OPERATION IS SUSPECTED.

KE-50MR1(AEP) 5

1. EXPLODED VIEWS

1-1. Display Unit (PDM-5000) ................................... 1-2

1-2. Media Receiver Unit (MBT-MR1) ...................... 1-4

1-3. Packing Materials for Display Unit (PDM-5000) 1-6

1-4. Packing Materials for Media Receiver Unit

(MBT-MR1) ....................................................... 1-7

2. ELECTRICAL PARTS LIST ............................... 2-1

TABLE OF CONTENTS

Section Title Page Section Title Page

KE-50MR1(AEP) 1-1

SECTION 1

EXPLODED VIEWS

• Items with no part number and no

description are not stocked because they

are seldom required for routine service.

• The construction parts of an assembled

part are indicated with a collation number

in the remark column.

• Items marked " * " are not stocked since

they are seldom required for routine

service. Some delay should be anticipated

when ordering these items.

The components identified !marked are

critical for safety.

Replace only with the part number specified.

Les composants identifiés par la marque

sont critiques pour la sécurité.

Ne les remplacer que par une pièce portant

le numéro spécifié.

KE-50MR1(AEP) 1-2

1-1. DISPLAY UNIT(PDM-5000)

#4 #4

#1 #1

#2 #2

19 20

21 33

16 17

KE-50MR1(AEP) 1-3

REF.NO. PART NO. DESCRIPTION REMARK REF.NO. PART NO. DESCRIPTION REMARK

1 A-1603-818-D SP (R) ASSY 3-8

2 A-1603-817-D SP (L) ASSY 3-8

3 4-091-706-01 GRILLE, SP

4 1-825-250-11 SPEAKER (5 CM)

5 1-825-251-11 SPEAKER (13X6 CM)

6 4-091-957-01 COVER (A), SCREW

7 1-825-249-11 SPEAKER (13X6 CM)

8 4-091-958-01 COVER (B), SCREW

9 4-091-991-01 BAR

10 4-091-675-01 SCREW, FIXED

11 * A-1401-891-B R2 BOARD, MOUNT

12 4-635-966-01 SCREW (HEX)

13 * A-1401-606-B R1 BOARD, MOUNT

14 2-433-598-01 HOLDER (LT-11U), WIRE

15 4-091-681-01 HOOK

16 * X-4041-100-1 COVER ASSY, REAR 17, 31

17 * 4-091-684-01 GASKET (ER)

18 1-763-961-11 FAN, D.C

19 * A-1401-892-A F2 BOARD, MOUNT

20 3-910-042-01 SPACER (A)

21 4-035-160-01 PURSE LOCK (S) (DIA. 12)

22 * A-1300-778-D G BOARD, COMPLETE

23 1-763-962-11 FAN, D.C

24 4-314-843-02 SCREW, TAPPING, +4X12

25 * A-1401-608-B F BOARD, MOUNT

26 * A-1401-609-B K BOARD, MOUNT

27 * A-1300-780-G P BOARD,COMPLETE

28 2-990-241-02 HOLDER (A), PLUG

29 !1-417-336-11 AC INLET

30 4-662-693-03 GRIP, M2.6 S HEAD(EG)

31 * 4-091-684-11 GASKET (ER)

32 X-4040-983-1 BRACKET (50) ASSY, U

33 4-374-745-11 CUSHION (A)

34 * 1-805-056-11 PLASMA DISPLAY PANEL

35 4-091-702-01 BOX (FL), SP

36 4-091-703-01 BOX (FR), SP

#1 7-682-973-49 +PSW 5X16

#2 7-685-663-79 +BV 4X16, TYPE 2, IT-3

#3 7-685-647-79 +BV 3X10, TYPE 2, IT-3

#4 7-682-663-09 +PSW 4X12

#5 7-682-948-09 +PSW 3X8

#6 7-685-648-79 +BV 3X12, TYPE 2, IT-3

#7 7-682-667-09 +PS 4X25

#8 7-685-533-19 +BTTP 2.6X6

#9 7-685-167-19 +PTP 4X35

KE-50MR1(AEP) 1-4

62 72

51 70 70

52 71

5476

55 5657

60 61

66 73

#11

1-2. MEDIA RECEIVER UNIT(MBT-MR1)

KE-50MR1(AEP) 1-5

REF.NO. PART NO. DESCRIPTION REMARK REF.NO. PART NO. DESCRIPTION REMARK

51 X-4040-972-1 COVER ASSY, BOTTOM

52 X-4041-227-1 FRONT, PANEL ASSY

53 3-703-035-11 SHAFT, DOOR

54 X-4041-228-1 DOOR, ASSY

55 * 4-091-608-01 BUTTON, POWER

56 4-036-405-01 SPRING, COMPRESSION

57 4-045-250-51 DAMPER

58 * A-1401-791-A H4 BOARD, MOUNT

59 * A-1401-788-A H1 BOARD, MOUNT

60 * A-1401-785-A H2 BOARD, MOUNT

61 !1-580-375-61 INLET 3P

62 * A-1401-784-A U BOARD, MOUNT

63 * A-1300-862-A G2 BOARD, COMPLETE

64 * A-1401-787-A MS BOARD, MOUNT

65 * A-1300-860-A A COMPL

66 * A-1300-861-A TU BOARD, COMPLETE

67 4-091-605-02 COVER, TOP

68 * A-1401-790-A MSX BOARD, MOUNT

69 4-092-753-01 PANEL (AEP), REAR

70 3-078-830-01 FOOT

71 * A-1404-625-A H5 BOARD, MOUNT

72 4-662-693-03 GRIP, M2.6 S HEAD (EG)

73 4-670-040-01 SCREW

74 4-382-854-01 SCREW (M3X8), P, SW (+)

75 4-635-966-01 SCREW (HEX)

76 4-042-192-21 CATCHER, PUSH

#3 7-685-647-79 SCREW +BVTP 3X10 TYPE2 IT-3

#6 7-685-648-79 SCREW +BVTP 3X12 TYPE2 IT-3

#10 7-685-662-79 SCREW +BVTP 4X14 TYPE2 IT-3

#11 7-682-961-01 SCREW +PSW 4X8

#12 7-682-250-09 +K 3X12

#13 7-682-150-09 SCREW +P 3X12

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