5-1
5-2
5-3
5-4
SECTION 5
DIAGRAMS
5-1. BLOCK DIAGRAMS (with FRAME SCHEMATIC DIAGRAM)
5-2. CIRCUIT BOARDS LOCATION
5-3. 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.
•
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.
HV ADJ
Part replaced (
[
)
RV901
HV Regulator
Circuit
HV HOLD DOWN
Circuit
Beam Current
Protector Circuit
Part replaced (
]
)
D board
IC901, R903, R922,
T901,
RV901
• Mounted D board
D board
D913,
D916, C923,
R920,
R927, R935,
R936,
T901
• Mounted D board
D board
IC901, D901, D902,
D918,
R053, R918,
R923,
R928, R932,
R933,
R934, R939,
T901
• 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.
A
D
H
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.
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
*
R IN 2
G IN 2
B IN 2
C.BLK
R IN 1
G IN 1
B IN 1
DAC_SEL
5
4
3
2
1
10
9
8
7
6
15
14
13
12
11
HD15
1
3
6
1
3
5
R_IN2
G_IN2
B_IN2
R_IN1
G_IN1
B_IN1
SW
G.SYNC
R_OUT
G_OUT
B_OUT
HFLB
SS
VFLB
OSD_SEL
7
5
2
16
13
11
19
25
27
30
35
5
6
7
8
22
IC404
OSD
R
G
B
FBKG
27
26
25
24
R_IN
G_IN
B_IN
R_OSD
G_OSD
B_OSD
OSD_BLK
RGB DRIVE
R_DRV
G_DRV
B_DRV
OSD CONT
R_OUT
G_OUT
B_OUT
DAC_SEL
R_IN
G_IN
B_IN
R_OUT
G_OUT
B_OUT
KR
KG
KB
)
KR
KG
KB
)
)
+15V
A
(VIDEO AMP,RGB OUT)
BRT
RGB OUT
D/A CONVERTER
R_DRV
G_DRV
B_DRV
BRT
CONT
OSDCONT
LD
CLK
MOSI
R_CUTOFF
G_CUTOFF
B_CUTOFF
6
7
8
9
12
13
15
16
17
3
4
5
V901
PICTURE TUBE
FV1 FV2
HV
TO FBT
G2
1KV
IC406
12V REG
O
I
+12V
+5V
+80V
+80V
G.SYNC
VIDEO OUT
G2 CONT
R_CUTOFF
G_CUTOFF
B_CUTOFF
+180V
1
7
5
4
3
CN407
CN408
Q101,102
Q201,202
Q301,302
IC405(1/4)
IC405(2/4)
IC405(3/4)
IC405(4/4)
19
G2
IC401
IC407
18
20
23
26
27
28
25
13
14
DMP_CLK
DMP_DATA
CONT
CLP
BLK
16
15
4
1
2
3
5
8
11
DAMP_DATA
DAMP_CLK
V BLK
IC408
RGB INPUT SELECT
V BLK
Q402
Q401
CN404
CN403
IC402(1/4)
IC402(2/4)
IC402(3/4)
IC402(4/4)
V.BLK
DAMP_CLK
DAMP_DATA
OSD_SEL
S/C ENABLE
AUTO S/C
CLAMP
INPUT_SEL
STBY 5V
Q409,Q410
IC403
Q404~Q406
11
+180V
C
D
NOR
H BLK
A
5
1
CN401
3
4
1
4
9
7
6
8
2
3
B
CN402
H.BLK
5
3
1
7
5
3
1
7
CN406
CN405
2
BUFF
Q103
BUFF
BUFF
HOSI
SCK
SYNC ON G
Q203
Q303
1
7
3
5
13
B-SS9064<NH.>-B/D-P1
13W3
4
3
-
+
+15V
CURRENT AMP
IC013
VS1
CS1
VS2
CS2
DMP CLK
DMP DO
DMP DI
DMP ID
39
38
46
7
45
9
11
10
12
6
41
43
42
44
33
IC007
CLP OUT
CBLK OUT
SONG
VIDEO
INPUT_SEL
CLK
DO
DI
ID
FBPIN
HS/CS1
VS1
HS/CS2
VS2
TILT
HTIM
VIDEO OUT
VS OUT
HS OUT
VDF
HCENT
H SHAPE BAL
V SHAPE
VDC
MOIRE
H SHAPE
H SIZE
2
8
48
47
28
32
29
19
26
34
30
31
DMP CLK
DMP DO
DMP DI
DMP ID
9
16
10
60
65
21
22
24
17
79
20
19
RXD
TXD
2
1
IC009
EEP SDA
EEP SCL
IC004
EEP ROM
5
6
25
26
V CLK
SDA
SCL
IC002
ROM
47
32
33
7
5
6
CPU
IC001
CS1
VS1
CS2
VS2
P70/IRQ0
DDC_SDA_1
DDC_SCL_1
DDC_SDA_2
DDC_SCL_2
KEY_DET
EEP_SDA
EEP_SCL
ASC SW
OSD_SEL
DAC SEL
HFBP
VRET
DMP_CLK
DMP_DO
DMP_DI
DMP_ID
INPUT SEL
66
59
29
41
63,64
4
9
10
7
14
AFC1
SDA
SCL
HSYNC
MOIRE
PWM RFE
DF OUT
HVD OUT
HD OUT
FBP
PMW OUT
IC010
SYNC PROCESS
17
24
25
19
23
6
5
7
2
3
1
H DRIVE
PIN DRIVE
PROT DET
DGC
HTR SW
POWER SW
100
99
98
96
CK
RESET
8
3
IC005
WDT
85
86
87
88
89
90
82
83
X001
HV_PROT
VDC
VRET
I
O
5V REG
RY501
S0
S1
S2
S3
S4
S5
H OUT
PS501
H DF OUT
V DF OUT
IC901
HV CONTROL
1
19
7
HV DRIVE
HV OUT
HRC
HV REG SW
PS901
12
8
ABL_DET
HV_DET
FBT
HV
FV1
FV2
TO PICTURE TUBE
V OUT
H CENT
CONTROL
H CENT
H SHAPBAL
2
1
-VIN
+VIN
VEE
OUT
VCC
4
5
3
IC502
H CENT OUT
1KV
V.DY C
V.DY H
H.DY C
DPU
43
77
78
38
93
WDT
RESET
ABL DET
HV DET
S0
S1
S2
S3
S4
S5
XTAL0
XTAL1
+B DET
IIC SDA
IIC SCL
HS
VS
ASC
HST
DFT
V.DY
H.DY
H.DY H
PIN AMP
PIN OUT
S CAP
CHANGE
RELAY
DRIVE
1
3
AC L
AC N
DGC
DGC
DGC
AC INLET
V SHAPE
CN601
T501
HDT
HOC
F601
6.3A
T601
D601
TH601
THP601
RY601
RY602
RELAY
DRIVE
RELAY
DRIVE
Q601
VCC SW
Q602
REG OUT
IC603
+180V
REG
IC604
REG SW
IC602
REG
HEATER
IC601
PH601
PH602
T603
+180V
+80V
+15V
-15V
1
2
3
4
5
6
7
CN504
+180V
GND
+80V
+15V
STBY5V
GND
HEATER
CN501
+180V
IC501
1
2
CN509
6
5
4
3
8
VCC
HOST+5_2
DDC_SCL_2
DDC_SDA_2
HOST+5_1
DDC_SCL_1
DDC_SDA_1
GND
V.SYNC-2
C.SYNC-2
GND
1
2
3
4
5
6
7
8
9
10
11
12
CN502
Q002
5V REG
+15V
OUT
IC1501
1
2
3
4
5
6
CN507
ROTATION(-)
RO)
IC1502
OUT
OUT
-
+
-
+
V CONV
27
74
H CONV
1
3
4
5
6
7
8
9
11
12
13
14
CN503
AUTO S/C
S/C ENABLE
SYNC ON G
INPUT_SEL
CLAMP
H BLK
V BLK
C BLK
DMP_CLK
DMP_DATA
DAC_SEL
OSD_SEL
IC011
9V REG
+15V
+9V
PWM OUT
H VD IN
+
-
+180V
Q901,Q903,Q904
Q906
T902
Q905
Q505,Q511
Q530,Q531
T502
4MHz
HV_PROT
9V REG
+15V
IC008
Q519
T503
Q503,Q504,Q512
Q516,Q528,Q529
Q507,Q509,Q510
T505
HCT
CN505
L504
HLC
Q527
Q518,Q520
Q522,Q523,Q524
Q525
Q517
T504
IC605
-
4
6
CN506
D
(POWER SUPPLY,U-COM,DEFLECTION)
T602
D617
USB_TX
USB_RX
3
7
6
+180V
Q514
IC1504
H SIZEFB
D
27
Q603
Q604
4
V.STAT+
V.STAT-
H.STAT+
H.STAT-
B
STBY5V
C
SW601
POWER
SWITCH
T604
C.SYNC_1
V.SYNC_1
A
T901
DTC SW
Q902
15
DTC
+15V
2
1
4
CN701
LCC-LB(-)
3
1
2
8
7
5
6
LCC-LB(+)
LCC-LT(-)
LCC-LT(+)
LCC-RB(-)
LCC-RT(+)
LCC-RT(-)
LCC-RB(+)
5
7
2
GAIN SW
Q534
GAIN SW
19,
40
IC501
PIN GAIN SW
91
Q006
Q533
94
MUTE
MUTE
Q526
1
2
9
12
5
6
8
13
4
2
1
8
2
RXD
TXD
3
8
5
4
2
1
LED1
LED0
LED2
LED3
CN510
E
44
15
14
13
12
LED3
LED2
LED1
LED0
39
ENV_TEMP
ENV_TEMP
KEY_DET
SW
Q612
LCC-LT
LCC-RT
LCC-LB
LCC-RB
72
71
70
69
2
OUT1
OUT2
8
3
4
7
6
LCC-LB
LCC-LT
IC701
BUFFER
2
OUT1
OUT2
8
3
4
7
6
BUFFER
LCC-RB
LCC-RT
IC702
-
+
-
+
-
+
-
+
LT
LB
RT
RB
SW
Q610
Q608,609
Q607
4
1
Q605
B+SW
Q606
IC606
4
7
5
+17V
CN602
5
3
2
3
8
5
4
2
1
LED1
LED0
LED2
LED3
E
ENV_TEMP
KEY_DET
LED DRIVE
Q803
LED DRIVE
S807
S806
S804
S803
S802
S801
S800
RESET
ASC
BRT-
BRT+
CONT-
CONT+
D806
POWER
Q802
H
(USER CONTROL)
CN801
STBY+5V
9V-1
2
OSD
B-SS9036<NH.>-B/D-P2
Summary of Contents for 655743N - P 92 - 19" CRT Display
Page 22: ...6557 03N 03S 43N 43S 4 3 MEMO...
