H
G
F
E
D
C
B
A
1
2
3
4
5
PT
-5
6
D
30B/
C
B & PT
-5
6SX30B/
C
B
M
T
N
C
0005
24A
1
Si
de
B
La
d
o
B
CHIP TRANSISTOR
LEAD DESIGNATION
IMPORTANT SAFETY NOTICE
THIS SCHEMATIC DIAGRAM INCORPORATES SPECIAL FEATURES
THAT ARE IMPORTANT FOR PROTECTION FROM X-RADIATION, FIRE
AND ELECTRICAL SHOCK HAZARDS. WHEN SERVICING IT IS
ESSENTIAL THAT ONLY MANUFACTURERS SPECIFIED PARTS BE
USED FOR THE CRITICAL COMPONENTS DESIGNATED WITH A
IN
THE SCHEMATIC.
B
E
C
IDENTIFICACIÓN DE TERMINALES
PARA TRANSISTORES EN
CHIP
Voltage Measurements
1.
Voltage measurement:
-
AC input to the Receiver is 120V.
NTSC (HD, 1125i & 525P when
applicable) signal generator is
connected to the antenna of the
Receiver. (Color bar pattern of
100 IRE white and 7.5 IRE black.)
-
All Picture and Audio adjustments
are set to Normalize.
TV ANT/CABLE - (Set-Up Menu)
in TV/ANT Mode
Volume - Min.
TV/Video SW - TV position
Audio Mode - Stereo
-
Voltage readings are nominal
and may vary ±10% on active
devices. Some voltage
reading will vary with signal
strength and picture content.
-
Supply voltages are nominal.
2.
Ground symbol indicates
ground lead connection of meter.
Incorrect ground connection will
result in erroneous readings.
CAUTION:
Incorrect ground
connection of the test equipment
will result in erroneous readings.
Schematic Notes
1.
Resistors are carbon 1/4W unless
noted otherwise.
2.
Capacitors are ceramic 50V unless
noted otherwise.
3.
Coil value notes is inductance in
µ
H.
4.
Test point indicated by ; Test point
but no pin .
5.
Components indicated with
are
critical parts and replacement should
be made with manufacture specified
replacement parts only.
6.
(BOLD LINE) indicates
the route of B+ supply.
7.
The schematic diagrams are
current at the time of printing and
are subject to change without
notice.
8.
Ground symbol indicates HOT
GROUND CONNECTION;
indicates COLD GROUND.
NOTE: All other component symbols
are used for engineering
design purposes.
0
Waveform Measurements
1.
indicates waveform measurement.
(Measurement can be taken at the
best accessible location in common
to the indicated point.)
2.
Taken with an NTSC signal
generator connected to the antenna
terminal. (NTSC color bar pattern of
8 bars of EIA colors, 100 IRE white
and 7.5 IRE black.)
3.
Customer Controls (Picture/Audio
Menu) are set to Normalize. Volume
is set to “MIN”.
4.
All video and color waveforms are
taken with a wideband scope and a
probe with low capacitance (10 to 1).
Shape and peak altitudes may vary
depending on the type of
Oscilloscope used and its settings.
5.
Ground symbol shown on
waveform number indicates (Hot)
ground lead connection of the
Oscilloscope.
CAUTION: Incorrect ground
connection of the test equipment will
result in erroneous readings.
3
NOTA DE SEGURIDAD
LOS DIAGRAMAS ELÉCTRICOS INCLUYEN CARACTERÍSTICAS
ESPECIALES MUY IMPORTANTES PARA LA PROTECCIÓN
CONTRA RAYOS-X, QUEMADURAS Y DESCARGAS
ELÉCTRICAS. CUANDO SE DE SERVICIO ES IMPORTANTE
USAR PARA REEMPLAZO DE COMPONENTES CRITICOS,
SOLO PARTES ESPECIFICADAS POR EL FABRICANTES. LOS
COMPONENTES CRITICOS ESTAN SEÑALADOS EN LOS
DIAGRAMAS POR EL SIMBOLO
.
T
-B
o
a
rd S
c
he
m
a
tic
PT
-5
6D
3
0
B
/C
B
& PT
-5
6S
X3
0B
/C
B
Sheet 1 of 2
P
ágina 1 de 2
T
a
rjet
a T
D
iag
ra
ma El
éctr
ico
P
T
-56
D
30
B/
C
B
&
P
T
-5
6S
X3
0B
/C
B
T-Board - PT-56D30B/CB & PT-56SX30B/CB
Tarjeta T, PT-56D30B/CB & PT-56SX30B/CB
Boards Designation
•
A-Board - Main Chassis
•
B-Board - Power Supply
•
C-Board - Convergence
•
D-Board - Protection Circuit
•
F-Board - Digital 3-line Comb Filter
•
F2-Board - 3D YC Comb Filter
•
G-Board - Front AV Connections
•
K-Board - Customer Controls
•
LB/LG/LR-Board - Blue, Green & Red
CRT Boards
•
N-Board - 2nd Tuner
•
R-Board - Remote Sensor
•
T-Board - Line Filter
•
X-Board - AV Inputs
•
Y-Board - PIP Processing
Indice de Tarjetas
•
Tarjeta A- Chasis Principal
•
Tarjeta B- Fuente de Alimentación
•
Tarjeta C- Convergencia
•
Tarjeta D- Circuito de Protección
•
Tarjeta F- Filtro Digital
•
Tarjeta F2- Filtro Comb Digital de YC
•
Tarjeta G- Entradas Frontales de AV
•
Tarjeta K- Ajustes de Usuario
•
Tarjetas LB/LG/LR - Tarjetas para los
TRC Rojo, Azul y Verde.
•
Tarjeta N- 2do Sintonizador
•
Tarjeta R- Sensor del Control Remoto
•
Tarjeta T- Filtro de Alimentación
•
Tarjeta X- Entradas de Audio y Video
•
Tarjeta Y- PIP (Imagen en Imagen)
IMPORTANT
For BOARDS LAYOUT, ICs and TRANSISTORS VOLTAGES
and WAVEFORMS refer to Main Service Manual
MTNC000211C1 (PT-61D30B/CB)
IMPORTANTE
Diagramas de Circuito Impreso, Tablas de Voltajes de referencia
de Circuitos Integrados y Transistores asi como Formas de
onda, referirse al Manual Principal No. MTNC000211C1
(PT-61D30B/CB)
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