Service manual
36
LC-20VM2
LC-121M2E
LC-150M2E
• DESCRIPTION OF SCHEMATIC DIAGRAM
1. When the exclusive-use AC adapter is used, the color bar signal of color 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 color density, lightness and color 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
[Resistor]
Unit: Nonindication ··· Ω, K ··· kΩ,
M ··· MΩ
Error: Nonindication ··· ±10%
J ··· ±5%
F ··· ±1%
D ··· ±0.5%
[Capacitor]
Unit: Nonindication or µ ··· µF,
P or p ··· pF
IMPORTANT SAFETY NOTICE:
PARTS MARKED WITH "
å
"
( )
ARE
IMPORTANT FOR MAINTAINING THE SAFETY
OF THE SET.
BE SURE TO REPLACE THESE PARTS WITH
SPECIFIED ONES FOR MAINTAINING THE SAFE-
TY AND PERFORMANCE OF THE SET.
AVIS DE SECURITE IMPORTANT:
LES PIECES MARQUEES "
å
"
( )
SONT
IMPORTANTES POUR MAINTENIR LA SECURITE
DE L'APPAREIL.
NE REMPLACER CES PIECES QUE PAR DES
PIECES DONT LE NUMERO EST SPECIFIE POUR
MAINTENIR LA SECURITE ET PROTEGER LE
BON FONCTIONNEMENT DE L'APPAREIL.
CAUTION:
This circuit diagram is original one, therefore there
may be a slight difference from yours.
Resistor Capacitor
Nonindication Carbon-film resistor Nonindication Ceramic capacitor
C Solid resistor ML Mylar capacitor
S Metal-oxide-film resistor PF Polypropylene
N Metal-film resistor film capacitor
W Cement resistor TA Tantalum capacitor
T Special resistor ST Styrol capacitor
[Item]