Siemens Nixdorf MCM 21T1, Service Manual

Page: 27 / 53

Note: The components identified by shading and mark
! are critical for safety. Replace only with part
number specified.
5-7 5-8 5-9
5-4. SCHEMATIC DIAGRAMS AND PRINTED
WIRING BOARDS
5-3. CIRCUIT BOARDS LOCATION
HV Regulator
Circuit Check
HV Protector
Circuit Check
Beam Current
Protector Circuit
Check
Part replaced (
]
)
D Board IC901, T902
• Mounted D board
D Board Q660, Q661, D916, D935,
C924,
R665, R667, R940,
R980, T902
• Mounted D board
G Board PH680, Q680, Q683, D680,
R680,
R685, R686, R687,
R688, R689
• Mounted G board
D Board IC901, D904, D907, D908,
R011, R908, R909, R921,
R925, R926, R929, R930,
T902
• Mounted D board
• All voltages are in V.
• Readings are taken with a 10 M digital multimeter.
• Readings are taken with a color-bar signal input.
• Voltage variations may be noted due to normal production
tolerances.
•
*
: Can not be measured.
• Circled numbers are waveform references.
•
s
: B + bus.
•
S
: B – bus.
5-2. FRAME SCHEMATIC DIAGRAM
G
D
S
2
3
4
5
6
7
8
9
0
!¡
!™
!¢
!§
–
1
G
D
S
G
S S
D
G
D
Ver.1.5
Transistor
(FET)
Transistor
Transistor
Discrete semiconductot
(Chip semiconductors that are not actually used are included.)
Diode
Diode
Diode
Diode
Diode
Diode
Diode
Diode
Diode
Diode
Source
Source
Anode Anode
(NC)
(NC)
Cathode
Anode
Cathode
Common
Cathode Cathode
Common
Cathode Cathode
Common
Common
Common
Common
Cathode
Anode
Base Emitter
Collector
Base
Emitter
Collector
Drain
Gate
Gate
Drain
Device Printed symbol Terminal name Circuit
Terminal name of semiconductors in silk screen
printed circuit ( )
Anode
Anode
Anode Cathode
Anode Anode
Cathode
!£
Transistor
(FET)
Transistor
(FET)
!∞
Emitter
Collector
Base
Transistor
Source
Gate
Drain
Cathode
Anode
Anode
Cathode
Anode
Anode
*
Note:
•
All capacitors are in µF unless otherwise noted. (pF: µµF)
Capacitors without voltage indication are all 50 V.
•
Indication of resistance, which does not have one for rating
electrical power, is as follows.
Pitch: 5 mm
Rating electrical power 1/4 W (CHIP : 1/10 W)
• All resistors are in ohms.
•
f
: nonflammable resistor.
•
Ï
: fusible resistor.
•
¢
: internal component.
•
p
: panel designation, and adjustment for repair.
• All variable and adjustable resistors have characteristic curve B,
unless otherwise noted.
•
e
: earth-ground.
•
E
: earth-chassis.
• The components identified by
[
in this basic schematic diagram
have been carefully factory-selected for each set in order to
satisfy regulations regarding X-ray radiation.
Should replacement be required, replace only with the value
originally used.
• When replacing components identified by
]
, make the
necessary adjustments indicated. (See page 3-1)
• When replacing the part in below table, be sure to perform the
related adjustment.
D A
G
H
J
GA
L
1
2
3
1
2
3
1 2 3
1
2
3
4
5
1
2
3
4
5
6
7
8
9
10
11
1 2 3 4 1 2 3 4 5 6 7
1
2
3
4
5
6
7
8
9
10
11
1 2
1
2
3
4
5
6
7
8
9
10
1 2 3 4 5 6 7 8 9
1
2
3
4
5
6
7
1
2
3
4
5
6
1
2
3
4
5
6
7
8
1 2 3 4 5 6 7 8 9
1 2 3 4 5 6
1 2 3 4 5 6
1 2 3 4 5 6 7 8 9
1
2
3
4
5
6
7
8
9
10
1
2
3
4
5
6
1
2
3
4
5
6
7
8
9
10
1
2
3
4
5
6
7
8
9
10
H
KB
KG
KR
G1
G2
GM
G4
RCV
HV
1 2 3 4
1 2 3 4 5 6 7 8 9
1
2
3
4
5
1 2 3 4 5 6 7 8 9
10 11
1 2 3 4 5 6 7 8
1 2 3 1 2 3 4 5 1 2 3 4 5 6 7 8 9 1 2 3
1
2
3
4
5
6
7
8
9
10
11
12
13
14
1
2
3
4
5
6
7
8
9
10
11
12
13
14
1
2
3
4
5
6
7
1
2
1 2 3 4
1 2 3 4 5 6 7 8 9
10 11
1
2
CN891
CN604 CN603
CN673
CN672
CN671
CN505
CN503
CN504
CN511 CN506
CN510
CN502
CN901
CN507
CN508 CN512 CN514
CN5001
CN2
CN1
CN402
CN401
CN403
CN407
CN405
CN406
CN520
CN5003
CN5002
CN5004
CN501
CN509
CN801
CN610
CN605
CN7501
3P
WHT
:VH
3P
WHT
:VH
4P
WHT
:VH
5P
WHT
:S-MICRO
9P
WHT
:S-MICRO
11P
WHT
:S-MICRO
4P
WHT
7P
WHT
:S-MICRO
5P
WHT
:S-MICRO
11P
WHT
:S-MICRO
8P
WHT
:S-MICRO
3P
WHT
:S-MICRO
11P
WHT
:S-MICRO
5P
WHT
:S-MICRO
2P
WHT
:VH
9P
WHT
:VH
9P
WHT
:S-MICRO
3P
WHT
:S-MICRO
9P
WHT
:S-MICRO
14P 14P
7P
WHT-L
:S-MICRO
6P
WHT-L
:S-MICRO
8P
WHT-L
:S-MICRO
7P
WHT-L
:S-MICRO
9P
WHT-L
:S-MICRO
2P
WHT
:VH
6P
WHT
:S-MICRO
10P
WHT
:S-MICRO
6P
WHT
:S-MICRO
4P
WHT
:VH
9P
YEL
:S-MICRO
2P
WHT
:S-MICRO
11P
WHT
:S-MICRO L
10P
B-TO-B
3P
10P
B-TO-B
1 2 3
4
5
6 7 8 9 10
11 12 13 14 15
FV1 FV2
A
FBT
CONNECTOR PANEL
TO ECS
DGC AC INLET
H.DY
HV
V.DY
V.DY
AC L OUT
NC
AC L IN
POWER SW
J
G
D
C BLOCK
FV1
FV2
G2 GND
HSTAT
G2 GND
HSTAT
(CRT SHIELD)
L
LCC-LT
LCC-LB
LCC-RT
LCC-RB
LCC-NS
AC L OUT
NC
AC L IN
NC AC L AC N DGC NC NC DGC
GND
POWER SW
DGUS SW
HEATER SW
STBY+8V
GND GND
+15V +80V
STBY+8V
NC
GND
GND
-15V
+15V
H CENT H
H CENT N
H CENT L
+80V
NC
+200V
+200V
LED0 LED1
STBY+5V
D GND
C.SYNC_1 V.SYNC_1 C.SYNC_2 V.SYNC_2
GND RXD TXD CLP BKGP
C.BLK GREEN
GND
INPUT_SW
GND
VIDEO
HFLB VRET
STBY+5V
KEY_DET
DGC
POWER
STBY 8V
GND
HTR_SW
DDC_SDA_2 HOST+5V_2 DDC_SCL_2 DDC_SDA_1 HOST+5V_1 DDC_SCL_1
ASC_SW
MOSI CLK
DAC_SEL OSD_SEL
CONT VR
BRT VR USB_TX USB_RX IK DET HV ADJ
X RAY DET
HCENT H
HCENT N
HCENT L
+80V
GND
+15V
GND
-15V
GND
1ST IK PROT
NC
+200V
+200V
H.DY H
H.DY H
H.DY C
H.DY C
NC
NC
V.DY H
V.DY C
GND
1KV
NC
+15V
GND
-15V
GND
LCC_RB LCC_RT LCC_LB LCC_LT LCC_NS STBY+5
LUMI
GND GND
H CONV V CONV
VX VY
LCC-LT(+)
LCC-LT(-)
LCC-LB(+)
LCC-LB(-)
LCC-RT(+)
LCC-RT(-)
LCC-RB(+)
LCC-RB(-)
LCC-NS(+)
LCC-NS(-)
LCC-RB LCC-RT LCC-LB LCC-LT LCC-NS
+15V
GND
-15V
GND
KB
KB
GND
GND
KG
KG
GND
GND
KR
KR
GND
G1
GND
KB
KB
GND
GND
KG
KG
GND
GND
KR
KR
GND
G1
GND
R IN 2
R GND 2
G IN 2
G GND 2
B IN 2
B GND 2
NC
R IN 1
R GND 1
G IN 1
G GND 1
B IN 1
B GND 1
CLP
BKGP
C.BLK
GREEN
GND
INPUT SW
GND
VIDEO
HFBP
VRET
OSD_SEL
CLK
DAC_SEL
MOSI
ASC_SW
+80V
GND
+15V
1KV GND
STBY+8V
NC
NC
LED0 LED1
KEY_DET
D GND
STBY+5V
GND
GND
H CONV V CONV
VX VY
GND
V STAT+ V STAT- H STAT+ H STAT-
D GND
ANV_DRI
GND GND
NC
FASTEN
FASTEN
R
ROTATION-
D GND
V STAT+
V STAT-
H STAT+
H STAT-
ROTATION
H.STA
V.STA
R
ROTATION-
NC
NC
+200V
+200V
GND
LED2 LED3
TEMP_DRI
GND
GND
DRIVE
I SENCE
VCC
V SENCE
AC SENCE
OVP
LVP
GND
L SENCE
GND
DRIVE
I SENCE
VCC
V SENCE
AC SENCE
OVP
LVP
GND
L SENCE
GA
(POWER SW)
(POWER SUPPLY)
VIDEO AMP,
RGB OUT
DEFLECTION
µ-COM,
H
(USER CONTROL)
V.STAT,H.STAT,
LCC,GEO,
MAGNETIC SENSOR
(POWER SENSOR)
B-SS3414<U/C>-KESSENZU