NEC MultiSync V920 User Manual

FOCUS POOR
CHECK
T302 14PIN H-DYNAMIC
PARABOLA WAVEFORM 550Vpp,
V-DYNAMIC PARABOLA
WAVEFORM 180Vpp
ADJUST
T302 STATIC FOCUS VR AND
DYNAMIC FOCUS VR
CHECK
T303 H AND V PARABOLA
WAVEFORM
TROUBLE IN
T303, Q305, R360, R32H,
R331, R339, C322, C324,
C320
YES
YES
1. CHECK STATIC FOCUS AND
DYNAMIC FOCUS VR LINE TO
CRT SOCKET
2. CRT SOCKET OR CRT POOR
NO
NO
CHECK
C323 H-PARABOLA
WAVEFORM 29Vpp
CHECK
Q303, Q304 EMITTER
H-PARABOLA
32-Vpp
TROUBLE IN T303
TROUBLE IN
Q302, Q303, Q304, Q338
YES
NO
GO TO
FACTORY MODE,
CHOICE H-FOCUS ICON, ADJUST
TO 80~100%, CHECK U301
10PIN FOCUS 3.8Vpp
TROUBLE IN U301
YES
NO
NO
NO
V-PARABOLA
NO
YES
CHECK
Q301, Q317 COLLECT
H-PARABOLA
5-Vpp
TROUBLE IN
Q301, Q307
NO
8. FOCUS POOR
25

NEC MultiSync V920 Specifications

General

Brand	NEC
Model	MultiSync V920
Category	Monitor
Language	English