Tatung OMNISCAN SERIES Manuale utente
Service Manual
COLOR
MONITOR
OMNISCAN
SERIES
CM17MBDjH/R
CIYI20MBDjHjR
-
CTATUN&
-------
TABLE
OF
CONTENTS
1.
G
EN
ERAL
----------------~-----------------------------------------------------------------------------
1-1
1.1
SAFETY ------------------------------------------------------------------------------------------------------------------
1-1
1.2 SPE
CI
FI
CA
TI
0 NS ----------------------------------------------------------------------------------------------------
1-1
1.3
CONTROLS ------------------------------------------------------------------------------------------------------------ 1-3
1.4
MAKI
NG
CONN
ECTI
0
NS
---------------------------------------------------------------------------------------- 1-5
2.
ADJU
STM
ENT
--------------------------------------------------------------------------~-------------
2-1
3.
CI
RC
UIT DESCRIPTION --------------------------------------------------------------------------
3-1
4.
FLOW CHART ----------------------------------------------------------------------------------------
4-1
5.
SIG
NAL IDENTIFICATION TABLE --------------------------------------------------------------
5-1
6.
TROUB
LE
SHOOTING------------------------------------------------------------------------------
6-1
7.
REPLACEMENT
PARTS
LIST
---------------~----------------------------------------------------
7-1
8.
PCB LAYOUT ----------------------------------------------------------------------------------------
8-1
9.
ASSEMBLY METHODES --------------------------------------------------------------------------
9-1
10.
CI
RCU
IT
DIAG
RAM
S--------------------------------------------------------------------------------10-1
= 1-0 =
1.
GENERAL
1.1
SAFETY
WARNING:
DANGEROUS VOLTAGE
ARE
PRESENT
IN
THIS CIRCUIT
WHENEVER
POWER
IS
CONNECTED
TO
THE CIR-
CUIT BOARDS,
EVEN
THOUGH
THE
PRODUCT
POWER
SWITCH MAY
BE
IN THE 'OFF' POSITION.
PROPER
SAFETY PRECAUTIONS MUST
BE
TAKEN
TO
ENSURE
THE
SAFETY OF PERSONS WORKING ON THE
BOARDS.
POTENTIOMETER ADJUSTMENTS:
R481, R626,
R818,
R640,
R211
SHOULD
BE
ADJUSTED
TO
CORRECT
POSITION DURING FUNCTIONAL
TEST.
1.2 SPECIFICATIONS
17" SPECIFICATIONS
Picture Tube
Resolution
Display Colors
*Display Area
Video Input
Video Bandwidth
Scanning Frequency
Sync. Input Form
Applications
Power Input
Power Consumption
Weight
Dimension
(W
/0
base)
Safe
Standard
EMI Standard
Standard Accessory
Optional Accessory
Recommended
Ambience
17
inch
(16V),
Dark Tinted, Anti-Glare,
.0.28/0.31 mm
dot
pitch (option)
90
degree deflection.
(Dynamic focus/Single focus option)
640
x
350
(min.), up
to
1280 x
1024
(max.)
unlimited
290
mm x 218 mm (typical)
Analog-RGB (positive)
BNC:
100
MHz
D-SUB:
70
MHz
Vertical: 50Hz to 90Hz (Automatic)
Horizontal: 29KHz to 66KHz (Automatic)
Separate Sync.
Sync. on green
Composite Sync.
VGA,
XGA,
8514A,
PGC,
MACII
CAD
/CAM, Workstation, etc.
Switch Selectable
AC
100
to
125V (60Hz)
AC 200 to 240V (50Hz)
120W (max.)
21.5KG/24.5KG (N.W.jG.W.)
411
x 380 x 480 mm
(W/H/D)
UL/CSA, TUV Optional
FCC
Class A model,
Fh:
29KHz
to
66KHz
FCC
Class B model,
Fh:
29KHz
to
62KHz (Class
B)
Fh:
63KHz
to
66KHz (Class
A)
FTZ Optional
Tilt/Swivel Base
(47
mm height)
0-15 pin to Mini 0-15 pin signal cable.
Power cord
signal cables (BNC)
Operating Temperature: + 0 to +35 degree
C,
Storage Temperature:
Humidity: -
20
to
+
60
degree
C,
10% to
80
%
(32
to
95
degree
F)
(-4
to
140
degree
F)
* Approximate only. Active display area depends on actual signal timing.
* Specifications subject
to
change without notice.
= 1-1 =
20" SPECIFICATIONS
Picture Tube
Resolution
Display Colors
*Display Area
Video Input
Video Bandwidth
Scanning Frequency
Sync.
Input Form
Applications
Power Input
Power Consumption
Weight
Dimension
0N
/0
base)
Safe
Standard
EM! Standard
Standard Accessory
Optional Accessory
Recommended
Ambience
20
inch
(19V),
Dark Tinted, Anti-Glare,
0.31
mm
dot pitch
90
degree deflection.
(Dynamic focus/Single focus option)
640
x
350
(min.), up to
1280
x
1024
(max.)
unlimited
350
mm
x
262
mm
(typical)
Analog-RGB (positive)
BNC:
100
MHz
D-SUB:
70
MHz
Vertical:
Horizontal:
50Hz to 90Hz (Automatic)
29KHz
to
66KHz
(Automatic)
Separate Sync.
Sync.
on
green
Composite Sync.
VGA,
XGA,
8514A,
PGC,
MACI!
CAD/CAM, Workstation, etc.
Switch Selectable
AC
100
to
125V
(60Hz)
AC
200
to
240V
(50Hz)
135W
(max.)
28.5KG/32.6KG (N.W./G.W.)
480
x
420
x
540
mm
(W
/H/D)
UL/CSA,
TUV
Optional
FCC
Class A model,
Fh:
29KHz
to 66KHz
FCC
Class B model,
Fh:
29KHz
to 62KHz (Class
B)
Fh:
63KHz
to 66KHz (Class
A)
FTZ
Optional
Tilt/Swivel
Base
(47
mm
height)
0-15 pin
to
Mini 0-15 pin signal cable.
Power cord
signal cables (BNe)
Operating Temperature: + 0 to +35 degree
C,
(32
to
95
degree
F)
Storage Temperature:
-20
to +60 degree
C,
(-4
to
140
degree
F)
Humidity:
10%
to
80
%
* Approximate only. Active display area depends on actual
Signal
timing.
* Specifications subject to change without notice.
1-2 =
1.3 CONTROLS
17"
FRONT{REAR PANEL CONTROLS
f.
II
fi!iiil
-I
Push open
"'tn
..
"'0. ..e-
..
~
-0·
:3
-----
..
0.
8.
V.
SIZE'
6.
V.
PO
SITION-
7.
H.
SIZE-
1.
POWER
LED
.
..
•
l:!:t
2. POWER SWITCH
~4.
SRI
GHTNESS CONTROL
3.
C
ONTRAST CONTROL
lb.d
@o5l
E
I
9.
11. MEM
10. MODE
DPC
ORY
RECALL
SWITCH
5.
H.
POSITION
Front Panel Controls
3.
DEG]!'USSING SWITCH
I!-+~;+---~
n
LJ
./
1.
115V/230V SWITCH
-lJ--.j..g~--I::;:;--t--------l
2.
POWER INPUT
~4--:~~+
'H+-I--+-+-l+-
4.
BNC INPUT
CONNECTOR
7.
SYNC.
SW.
6.
SIGNAL VOLTAGE SWITCH
5. D-SUB CONNECTOR
5.
MINI D-SUB CONNECTOR
Rear Panel Control
1-3 =
20" FRONT{REAR PANEL CONTROLS
r=::::J
I
"1l I
I
6.
V.
POSITION
7.
H. SIZE
--
1.
POWER LED
I
'£
t::2.
2.
POWER SWITCH
J 3. CONTRAST CONTROL
\
4.
BRIGHTNESS CONTROL
I PUSH OPEN
E11.
MEMORYRECALL
10.
MODE
SWITCH
9.
DPC
L--
______
5.
H.
POSITION
Front Panel Controls
1.
115V/230V SWITCH
2.
POWER INPUT
DEGAUSSING SWITCH
1'0
0
~
r-L.
>-:::
~
~
D
r'O
6~""
~
~\~
1 t
Rear Panel Control
1-4 =
a/)
y
-
f\t--
......
c"":::!
~
I
6.
5.
4.
BNC
INPUT
CONNECTOR
7.
SYNC.
SW.
SIGNAL VOLTAGE SWITCH
D-SUB CONNECTOR
5.
MINI D-SUB CONNECTOR
1.4
MAKING
CONNECTIONS
(1
)
IBM PC
Signal cable
(2)
Apple Macintosh
LC
/
Signal cable
(3)
Apple Macintosh
II
(SYNC. SW.)
ON
D
~--------......I
D.
SUB
(SYNC. SW.)
ON
D.SUB
D
~
_______
--J
MINI
(SYNC.
sw.)
ON
D.SUB
D
~
_______
---I
MINI
D.
SUB
= 1-5 =
(4)
Other computers SYNC.
SW.
)
( ON D
CABLEx4
(5)
Other computers SYNC.
SW.)
( ON D
R
G
Signal cable B
H
v
CABLEx5
(6)
Workstation SYNC. SW.)
( OFF
D
Signal cable R
G+SYNC.
CABLEx3
B
= 1-6 =
BNC CONNECTIONS & CABLE PIN ASSIGNMENTS
BNC
Connections
R
CONNECTOR
R
G(jSYNC.)
B
H/HV
V
REMARKS:
G(jSYNC.)
SYNC.
ON
GREEN
RED
GREEN
& SYNC.
BLUE
B
H/HV
COMPOSITE SYNC.
RED
GREEN
BLUE
H+V
SYNC.
1.
VIDEO SIGNAL LEVEL
IS
0.7/1.0 Vp-p (SELECTABLE).
SYNC. SIGNAL LEVEL
IS
TTL.
2.
"-"
MEANS NO CONNECTION.
= 1-7 =
v
SEPARATE SYNC.
RED
GREEN
BLUE
H
V
D-SUB 15 PIN
MINI D-SUB 15 PIN
SIGNAL CABLE PIN ASSIGNMENTS
SIGNAL
PIN
NO.
FOR
PIN
NO.
FOR
D-SUB
15
PIN
MIN D-SUB 15
PIN
(MAC
II)
01GA/8514A)
RED
2 1
GREEN/SYNC. ON
GREEN
5 2
BLUE 9 3
H
SYNC./H+V
SYNC. 7
13
V SYNC.jV MODE 8
14
GROUND 1 4 6
11
13
14
467
8
10
11
OPEN
PIN
3
10
12 15
5 9
12 15
= 1-8 =
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