Cleaning Procedure; Servicing Diagrams; Block Diagram - Zenith ZVM-1380 Service Manual

Cleaning Procedure
WARNING: Be sure that the monitor's power cable
is unplugged before cleaning.
•
•
•
Clean the cabinet with a lint-free cloth, lightly
dampened with a mild cleaning solution. Do not
spray liquids directly on the monitor or use a wet,
saturated cloth.
Clean the screen with a good quality glass
cleaner.
Be sure that the monitor is completely dry before
applying electric power.
~
0
POIJER SUPPLY ASSEMBLY
AD1
CRT SOCKET BOARD
(SEE FIGURE 5-1 MONITOR
SCHEMATIC)
+150Y G2
,
?
RGB G2
rccus
SIGNALS VOLTAGE VDLTAGE
P403
F=1
P20~
P405
Servicing Diagrams
Schematic and component location drawings are pro-
vided in this section. The source location of waveforms
referenced in the text are shown on both schematic
and component location drawings.
A Z-150 PC computer was used to supply the RGB
signals for generating the waveforms.
NOTE: Some input and output waveforms for some
boards are taken from the adjacent boards because
test paints having the same signal are more accessible
there.
9
DAG
I
SOCKET /
o
CONNECTOR
DEGAUSSlNG
CRT
COIL
YOKE-::t-~
...
"-
......
:> ...
"':>
-'
"
"
-'
>- "
2SkY CRT z u
~ ~
ANODE VOLTAGE
« ...
'i' >
P4Dl
r===:J
GROUND
~P205
Jt
L
I "
L
S-"
L
POIJER
SIJITCH
GIN/A S'lJITCH
~~tl~
NORMAL.
BRIGHTNESS
CONTROL
V.SIZE 1
MAIN BOARD
] " , 0 .
S-"
CONTROL
I
V,SIZE 2
CONTROL
I
HO R. CENTER 1
CONTROL
I
HO R. CENTER 2
CONTROl
Page 4-4
(SEE FIGURE 5-1 M[JIIITDR SCHEMATIC)
Figure 4-2
Block Diagram
]P<"
L
I )
L
CONTRAST
CONTROL
POWER
INDICATING
LED
Servicing