Sony KZ-32TS1U Bedienungsanleitung

SERVICE MANUAL

SPECIFICATIONS

KZ-32TS1U

FLAT PANEL COLOR TELEVISION

US Model

Canadian Model

Television system:

American TV standard

Channel coverage:

VHF: 2–13/UHF: 14–69/CATV: 1–125

Antenna:

75 ohm external terminal for VHF/UHF

Screen size (measured diagonally):

32 inches

Panel System:

Plasma Display panel

Display resolution:

852 dots (horizontal) x1024 lines (vertical)

VIDEO IN 1/2:

S VIDEO IN (4-pin mini DIN):

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

sync negative

C:0.286 Vp-p (Burst signal),

75 ohms

VIDEO (RCA Pin jack):

1 Vp-p, 75-ohms unbalanced, sync

negative

AUDIO (RCA Pin jacks):

500 mVrms (100% modulation),

Impedance: 47 kilohms

COMPONENT VIDEO IN 1:

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

:±350m Vp-p, 75 ohms

AUDIO (RCA Pin jacks):

500 mVrms (100% modulation),

Impedance: 47 kilohms

COMPONENT VIDEO IN 2/RGB IN:

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

:0.7 Vp-p, 75 ohms

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

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

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

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

AUDIO (RCA Pin jacks):

500 mVrms (100% modulation),

Impedance: 47 kilohms

SUB WOOFER: RCA Pin jack

AUDIO OUT (RCA Pin jacks):

500 mVrms (100% modulation)

Headphones: Stereo minijack

CONTROL S IN/OUT:

minijacks

Speaker: 50 x130 mm (2 x5

inches)

Speaker output: 7W x2

Power requirement:

120 V AC, 60 Hz

Power consumption:

In use (Max.): 270W

In standby: 1.7W

Dimensions (W/H/D):

856 x627 x132 mm

(33

x24

inch)

Mass: 25.5 kg (56 lbs 3 oz.)

Supplied accessories

Remote control (1)

Batteries size AA (2)

75-ohm coaxial cable (1)

AC power cord (1)

Brackets (2)

Cleaning cloth (1)

Operating instructions (1)

Important Safeguards (1)

Warranty (1)

Optional accessories

Note that some optional accessories may be out of

stock.

Headphones plug adapter

Connecting cables VMC-810S/820S, YC-15V/30V,

RK-74A, VMC-10HG, SMF-403

Design and specifications are subject to change

without notice.

KZ-32TS1U(U/C) 2

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

KZ-32TS1U(U/C) 3

WARNING!!

NEVER TURN ON THE POWER IN A CONDITION IN WHICH THE

DEGAUSS COIL HAS BEEN REMOVED.

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.

AVERTISSEMENT!!

NE JAMAIS METTRE SOUS TENSION QUAND LA BOBINE DE

DEMAGNETISATION EST ENLEVÉE.

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.LESRÉGLAGESDE CIRCUITDONT L’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.

KZ-32TS1U(U/C) 4

1. DISASSEMBLY

1-1. Rear Cover Removal ............................................ 1-1

1-2. Main Shield Removal .......................................... 1-2

1-3. Stand Assembly Removal .................................... 1-3

1-4. Q Board Removal ................................................ 1-4

1-5. B Board Removal.................................................. 1-5

1-6. TU Board Removal............................................... 1-6

1-7. H1 Board Removal ............................................... 1-7

1-8. H2 Board Removal ............................................... 1-8

1-9. Supports Removal................................................. 1-9

1-10.Switching Regulator Removal ............................. 1-10

1-11.Plasma Display Panel Removal ............................ 1-11

2. ADJUSTMENTS

2-1. White Balance Adjustment ................................... 2-1

2-2. Calibration Adjustment of A/D Converter

and Video Coder ................................................... 2-2

2-3. Adjustment of Sub-color and Sub-hue.................. 2-4

TABLE OF CONTENTS

Section Title Page Section Title Page

3. DIAGRAMS

3-1. Block Diagrams .................................................... 3-1

3-2. Circuit Boards Location........................................ 3-5

3-3. Schematic Diagrams and Printed Wiring

Boards ................................................................... 3-6

(1) Schematic Diagrams of B (a, b, c,d, e, f, g)

Board .................................................................... 3-7

(2) Schematic Diagram of H1 Board ......................... 3-15

(3) Schematic Diagram of H2 Board ......................... 3-17

(4) Schematic Diagrams of Q (a, b) Board ........... 3-19

(5) Schematic Diagram of TU Board ......................... 3-22

3-4. Semiconductors .................................................... 3-24

4. EXPLODED VIEWS .............................................. 4-1

4-1. Cover .................................................................... 4-2

4-2. Chassis ................................................................. 4-3

4-3. Packing Materials ................................................. 4-4

5. ELECTRICAL PARTS LIST ............................... 5-1

KZ-32TS1U(U/C) 1-1

SECTION 1

DISASSEMBLY

1-1. REAR COVER REMOVAL

2Rear cover

1Four screws

(+PSW 5x25)

1Seven screws

(+BVTP 4x16)

1Six screws

(+BVTP 4x16)

KZ-32TS1U(U/C) 1-2

1-2. MAIN SHIELD REMOVAL

3Main shield

2Fourteen screws

(+BVTP 4x12)

1Eight screws

(+PSW 3x8)

KZ-32TS1U(U/C) 1-3

1-3. STAND ASSEMBLYREMOVAL

2Stand base assembly

Stand base assembly

1Four screws

(+PSW 5x12)

KZ-32TS1U(U/C) 1-4

1-4. Q BOARD REMOVAL

4Q top shield

3Connector panel

6Q board

2Four screws

(+KTP 3x12)

1Nut

5Two screws

(+PSW 3x6)

KZ-32TS1U(U/C) 1-5

1-5. B BOARD REMOVAL

4B board

2B top shield

Board holders

3Five screws

(+PSW 3x6)

1Two screws

(+PSW 3x6)

1Four screws

(+PSW 3x6)

KZ-32TS1U(U/C) 1-6

1-6. TU BOARD REMOVAL

1TU board

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