Table of Contents
Advertisement
LC-20B2EA
DESCRIPTION OF SCHEMATIC DIAGRAM
IMPORTANT SAFETY NOTICE:
PARTS MARKED WITH "
INPORTANT FOR MAINTAINING THE SAFETY OF
THE SET.
BE SURE TO REPLACE THESE PARTS WITH
SPECIFIED ONES FOR MAINTAINING THE
SAFETY AND PERFORMANCE OF THE SET.
CAUTION:
This circuit diagram is original one, therefore there
may be a slight difference from yours.
1. When the exclusive-use AC adapter is used, the
colour bar signal of colour bar generator for service
is input to get the normal screen. When the audio is
minimized, the voltage value is measured with the
20 kΩ/V tester.
2. When the exclusive-use AC adapter is used, the
colour density, lightness and colour hue are set to
the center position, and the signal of colour bar
generator for service is observed to get waveform.
The waveform test point is indicated with the mark
(
) in the wiring diagram.
3. Indication of resistors and capacitors
[Resistors]
: Nonindication ... Ω, K...kΩ,
Unit
Error : Nonindication ... ±5%
[Capacitor]
: Nonindication or µ ... µF,
Unit
å
" (
) ARE
M ... MΩ
F ... ±1%
D ... ±0.5%
P or p ... pF
[Item]
Resistors
Nonindication
Carbon-film resistor
C
Solid resistor
S
Metal-oxide-film resistor
N
Metal-film resistor
W
Cement resistor
T
Special resistor
Capacitors
Nonndication
Ceramic capacitor
ML
Mylar capacitor
PF
Polypropylene
film capacitor
TA
Tantalum capacitor
ST
Styrol capacitor
24
Advertisement
Table of Contents
