SERVICE MANUAL
SPECIFICATIONS
KZ-42TS1U
FLAT PANEL COLOR TELEVISION
US Model
Canadian Model
Television system:
American TV standard
Channel coverage:
VHF: 213/UHF: 1469/CATV: 1125
Antenna:
75 ohm external terminal for VHF/UHF
Screen size (measured diagonally):
42 inches
Panel System:
Plasma Display panel
Display resolution:
1024 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
PB:
± 350m Vp-p, 75 ohms
PR:
± 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
PB:0.7 Vp-p, 75 ohms
PR:0.7 Vp-p, 75 ohms
or
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
or
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:15 Vp-p
VD:15 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
x 130 mm (2 x 5 1/8 inches)
x 2
Speaker output: 9W
x 2
Power requirement:
120 V AC, 60 Hz
Power consumption:
In use (Max.): 360W
In standby:
2.0W
Dimensions (W/H/D):
1,056
x764 x124 mm
(41 5/8
x 30 1/8 x 5 inch)
Mass:
37.0 kg (81 lbs 9 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-42TS1U(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
0.15
µF
AC
Voltmeter
(0.75 V)
To Exposed Metal
Parts on Set
Earth Ground
SAFETY CHECK-OUT
KZ-42TS1U(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. LES RÉGLAGES DE CIRCUIT DONT L'IMPORTANCE EST
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-42TS1U(U/C)
4
1. DISASSEMBLY
1-1. Rear Cover Removal ............................................
1-1
1-2. Q, Q2 and TU Board Removal ............................
1-2
1-3. Main Shield Removal ..........................................
1-3
1-4. B Board Removal .................................................
1-4
1-5. H1 Board Removal ...............................................
1-5
1-6. Switching Regulator Removal ..............................
1-6
1-7. H2 Board Removal ...............................................
1-7
1-8. Plasma Display Panel Removal ............................
1-8
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
3. DIAGRAMS
3-1. Block Diagrams ....................................................
3-1
TABLE OF CONTENTS
Section
Title
Page
Section
Title
Page
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 Diagram of Q2 Board .........................
3-19
(5) Schematic Diagrams of Q (a, b) Board ..........
3-20
(6) Schematic Diagram of TU Board .........................
3-23
3-4. Semiconductors ....................................................
3-25
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-42TS1U(U/C)
1-1
3 Rear Cover
1 Eight screws
(+PSW 5x12)
2 Ten screws
(+PSW 5x12)
SECTION 1
DISASSEMBLY
1-1. REAR COVER REMOVAL