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5-10
5-11
5-12
— H BOARD (Conductor side) —
IC610
1
0
2
0.6
3
*
5
2.3
6
14.8
7
0.2
8
9.6
10
16.7
IC630
1
179.7
3
2.5
4
12.5
IC660
4
5.8
5
389.0
IC690
IN
7.0
OUT
6.3
VC
4.8
PH680
1
1.2
2
0
3
0
4
–0.4
Q610
G
9.6
D
92.0
S
0.2
Q615
B
14.1
C
14.8
E
14.9
Q640
B1
–1.8
C1
187.3
B2
185.2
C2
380.0
E2
187.3
Q641
B
1.1
C
–1.8
E
0.2
Q642
B
–1.9
C
–1.8
Q660
B
0.8
C
0.2
Q680
B
0.7
C
0
Q681
B
0.2
C
12.4
Q682
B
12.4
E
12.5
Q683
B
6.3
C
7.0
E
7.0
Q690
B
0
C
15.3
Ref.
Pin No. Voltage [V]
•
G BOARD VOLTAGE LIST
Ref.
Pin No. Voltage [V]
(1) Schematic Diagrams of G, H and J Boards
5-3. CIRCUIT BOARDS LOCATION
5-4. SCHEMATIC DIAGRAMS AND
PRINTED WIRING BOARDS
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.
•
: 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.
• 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.
Part replaced (
]
)
D Board
IC901, T902
• Mounted D board
D Board
Q590, Q591, D916,
D935, C924, R597,
R598, R940, R980,
T902
• Mounted D board
G Board
PH680, Q680, Q683,
D680, R680, 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
HV Regulator
Circuit Check
HV Protector
Circuit Check
Beam Current
Protector Circuit
Check
Note: The components identified by shading and mark
¡
are critical for safety. Replace only with part
number specified.
Note: Les composants identifiés per un tramé et une
marque
¡
sont critiques pour la sécurité. Ne les
remplacer que par une pièce portant le numéro
spécifié.
• 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.
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
*
D
A
G
H
J
5-9
— H BOARD (Component side) —
— G BOARD —
H BOARD
Terminal name of semiconductors
in silk screen printed circuit (
*
)
Ref.
*
2
7
Q810, Q811
D800, D801, D804
*
: Refer to Terminal name of
semiconductors in silk screen
printed circuit (see page 5-9)
— J BOARD —
G
POWER SUPPLY
H
USER CONTROL
J
POWER SW
1
2
3
CN891
S891
3P
WHT
:VH
AC L OUT
NC
AC L IN
J
TO G BOARD
CN605
(POWER SW)
POWER
B-SS8481<NH.>-J..
4.1
0
0.4
4.8
STBY+5V
1
2
3
4
5
6
7
8
9
D810
C811
C800
C801
C810
D800
D801
D804
R809
R805
R807
R808
R821
R814
R820
R801
R802
R803
R804
R806
S802
S803
S804
S805
S806
S808
S810
C804
CN801
Q810
R811
Q811
R810
0.01
B:CHIP
0.01
B:CHIP
0.01
B:CHIP
47
25V
MA153
MA153
MA153
SPB-26MVWF
3.3k
:CHIP
330
:CHIP
330
:CHIP
470
:CHIP
470
:CHIP
680
:CHIP
1.0k
:CHIP
1.0k
:CHIP
2.2k
:CHIP
3.3k
:CHIP
1.0k
:CHIP
1.0k
:CHIP
0.01
B:CHIP
9P
:XA
2SC2412K
LED DRIVE
470
:CHIP
2SC2412K
LED DRIVE
270
:CHIP
LED0
LED1
KEY_DET
D GND
STBY+5V
POWER
RESET
GND
GND
CONT+
CONT-
MENU
BRT+
BRT-
ASC
15V
ENV_TEMP
TO D BOARD
CN501
H
(USER CONTROL)
B-SS8481<NH.>-H..
+180V
-15V
+80V
+15V
STBY+8V
1
2
3
4
5
1
2
3
4
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
5
6
7
8
9
~
~
+
-
G
VC
O
I
1
2
3
4
6
7
5
1
2
4
3
1
2
3
4
1
2
3
4
5
6
7
8
9
1
2
12
11
10
9
8
7
6
5
4
3
1
1
1
3
4
5
6
7
8
9
10
11
2
S
1
3
7
8
9
10
11
2
5
6
1
2
3
4
5
6
7
8
T601
THP601
CN605
C603
C604
TH601
CN603
R652
R661
R692
R673
C672
C671
C675
C676
C610
PS674
D614
D673
D674
D610
D611
FB610
FB611
C691
C680
C674
C678
C673
C683
C616
C677
C679
C682
R641
R642
R643
R649
R650
R674
R675
R613
R612
R625
D617
D640
D664
D677
D678
D680
D681
D692
L670
L671
L672
L673
L691
VDR602
VDR640
CN604
FB612
C640
C641
C644
C642
C643
C645
C646
C681
R686
R648
R651
C647
R633
C621
C670
C684
C693
R605
R630
R645
R626
R632
R646
R680
R685
R682
R693
R672
R687
R644
R647
R683
R671
R635
R655
R688
R694
JW601
JW602
CN671
C663
C662
R662
R663
D663
PH680
R628
D682
D683
D684
R681
C685
T641
T660
T640
L611
L612
R619
R620
R621
R627
R629
R601
C611
CN602
R604
CN673
R690
R631
R664
C690
C661
R640
RY601
RY602
L692
C694
R610
R611
VDR601
D662
D665
R689
D612
D661
CN672
CN607
IC630
D671
D670
D672
Q681
Q683
Q682
D691
Q641
Q642
L610
Q660
Q615
Q690
F601
IC610
IC690
Q680
Q640
C692
D660
C660
IC660
C605
C606
Q610
C601
C602
#
#
1P
1.0
250V
1.0
250V
1.0
400V
220
450V
47
25V
0.022
630V
470p
500V
:HR
470p
500V
:HR
0.22
:MPS
0.22
:MPS
470p
500V
:HR
0.1
:MPS
0.1
:MPS
0.022
630V
:PP
0.1
:PT
22
0.01
:PT
100
200V
3.3
200V
330
100V
4.7
100V
2200
25V
47
25V
2200
25V
47
25V
2200
10V
2200
10V
4.7
4.7
2200p
500V
B
0.01
:PT
47
470
16V
47
25V
0.1
:PT
4P
WHT
:VH
3P
WHT
:VH
3P
11P
WHT
:S-MICRO
5P
WHT
:S-MICRO
D4SB60L
D5L60
1SS119
1SS119
1SS119
RD12ESB2
1SS119
D2S4MTA1
D2S4MTA1
1SS119
1SS119
1SS119
1SS119
D1NL20
1SS119
RD18ESB2
1SS119
0.45UH
0.45UH
0.45UH
22µH
22µH
22µH
22µH
22µH
22µH
22µH
PC123FY2
2.0A
330k 1/2W :SURGE
150
1/2W
22k
100k
1/2W
100k
1/2W
470k
:RN
390k
:RN
390k
:RN
10
10k
470k
:RN
330k
:RN
56k
:RN
22k
150
10k
330k
:RN
10k
100k
1W
:RS
100k
1W
:RS
22k
220k
22k
10k
100k
2.2
100k
1W
:RS
100k
1W
:RS
2.2
2.2
1/2W
:RF
10k
4.7
:FPRD
10k
10k
4.7
470k
1k
470
:FPRD
0.47
:FPRD
1
1/2W
:FPRD
10k
1k
4.7k
100
10k
1k
1k
10k
10
:FPRD
68
1/2W
4.7k
10k
:LFT
PIT
PRT
SRT
100
16V
0.47
1/2W
:RF
22µH
47
25V
0.47
2W
0.47
2W
AG01A-V1
RD13ES-T1B1
4.7k
RM11A
UF4005PKG23
9P
WHT
:S-MICRO
1P
DM-57N
+180V SHNT REG
D1NL20-TR
+80V RECT
D180V RECT
D4SBS4
+15V/-15V RECT
2SC2458
POWER SW
2SA1309A
SOFT START
2SA1309A
POWER SW
D2L20U
STBY 8V RECT
2SA1309A REG SW
2SC3311A
REG SW
500µH
2SC3311A
RELAY DRIVE
2SA1309A
VCC SW
2SC3311A
RELAY DRIVE
6.3A
TME757
CHOPPER CONT.
PQ6RD083B
HEATER REG
2SC3311A
POWER SW
MX0541AB-F
CONV OUT
1000p
10V
P6KE170AG23
120
25V
TOP223PF1
REG SW
4700p
250V
4700p
250V
2SK2195F
CONV OUT
470p
250V
470p
250V
15V
15V
1
2
3
4
5
6
2
1
NC
DGC
NC
NC
DGC
AC L
AC N
AC L OUT
NC
AC L IN
GND
GND
GND
GND
-15V
+15V
+15V
H CENT H
H CENT N
H CENT L
+180V
+180V
+80V
+80V
+180V
GND
POWER SW
DGUS SW
HEATER SW
STBY+8V
STBY+8V
NC
NC
GND
NC
GND
G
(POWER SUPPLY)
TO D BOARD
CN502
TO A BOARD
CN405
TO D BOARD
CN504
S GND
AC SENCE
P GND
DRIVE
I SENCE
VCC
V SENCE
OVP
LATCH
LATCH
OUT
O
I
DGC
TO J BOARD
AC INLET
CN891
B-SS8481<NH.>-G..