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Horizontal Circuit Adjustment
RGB Horizontal
Sync
(C-P.C. Board)
1.
Equipment to
be
used
RGB
Signal
Generator: Color
Bar
Pattern
RGB input
Short
Jumper Wire
2. Initial conditions
FH
LIMIT
VR
(R5906):
counterclockwise
fully
Adjustment
Mode:
Normal
Mode
3.
Adjustment Procedures
(1) Receive a 15.734kHz Color Bar Pattern
signal.
(2) Short between
TPC4 and Horizontal
Circuit
Heat
Sink
with
a
short
jumper wire.
(3) Turn
DELAY 1 VR (R5533) until
the picture starts to flow
horizontally and keep it at that position.
Video
Horizontal
Sync (C-P.C. Board)
1. Equipment to be used
Video Signal
Generator:
Color
Bar Pattern
VIDEO
input
Short
Jumper
Wire
2. Initial conditions
FH LIMIT
VR (R5906): counterclockwise
fully
Adjustment Mode.
Normal Mode
-------
3.
Adjustment Procedures
(1)
Receive an
NTSC
Color Bar Pattern
signal.
(2) Short between
TPC4 and
Horizontal Circuit Heat Sink
with
a
short
jumper
wire.
{3) Turn VIDEO H HOLD VR (A5550) until the picture
starts
to flow horizontally and keep it at that position.
(4) Remove the short jumper wire
Horizontal Frequency Lower Limit
(C-P.C. Board)
1. Equipment to be used
Video
Signal
Generator: Color Bar Pattern
VIDEO input
Short Jumper
Wire
2. Initial conditions
Adjustment Mode:
Normal Mode
3. Adjustment Procedures
(
1)
Receive
a
14. 500kHz Color
Bar Pattern
signal.
(2) Turn FH LIMIT
VR
(R5906)
clockwise until
the picture
starts to flow horizontally and keep it at that position.
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FV Adjustment
C-P.C. Board
1. Equipment to be used
Digital
voltmeter: TPC3 - Horizontal
Circuit
Heat
Sink (GND)
RGB Signal Generator. Color
Bar Pattern
RGB
input
2.
Initial
conditions
SCAN SIZE:
OVER
Adjustment
Mode: Adjustment Mode 1
3. Adjustment Procedures
(1) Receive a 33.750kHZ
Color
Bar
Pattern
signal.
(2)
Adjust FV
ADJ VR
(R5943)
to
set
the
voltage of TPC3
to 5.8±0.05V.
Contrast Adjustment
Y-P.C.
Board
1. Equipment
to
be used
AGB Signal Generator: Cross
Hatch
Pattern
RGB
input
Oscilloscope:
TPKG • TPY6 (GND)
2.
Initial conditions
Adjustment Mode: Adjwstment Mode
2
3. Adjustment Procedures
(1)
Receive
a
15.734kHZ
Cross
Hatch
Pattern signal.
(2)
Adjust
the
CONTRAST control
of
the remote
control
unit to set
"A"
of
the
TPKG waveform to 80.0:!:2.0V.
B
:n
A
TPKG Waveform
Color Output Adjustment
Y-P.C.
Board
1. Equipment to be used
HDTV
Signal
Generator:
Color
Bar Pattern
RGB input
Oscilloscope:
TPKB - TPY6
(GND)
2. Initial conditions
Adjustment
Mode:
Adjustment Mode
2
3.
Adjustment Procedures
(1)
Receive
an
HDTV
Color
Bar Pattern signal.
(2)
Adjust the COLOR
control
of the
remote control
unit
to
equalize
amplitude
"A" of the TPKB waveform and
--
amplitude "D" of it.
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