Description Of Schematic Diagram - Sharp LC-20C2E Service Manual

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 FORMAINTAINING 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 wave form test point is indicated with the mark
( ) in the wiring diagram.
3. Indication of resistors and capacitors
[Resistors]
: Nonindication ... Ω, K...kΩ,
Unit
M ... MΩ
Error : Nonindication ... ±5%
F ... ±1%
D ... ±0.5%
[Capacitor]
: Nonindication or µ ... µF,
Unit
P or p ... pF
å
"( ) ARE
23
[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
Styrol capacitor
LC-20C2E