Dell D1626HT - UltraScan 1600HS - 21" CRT Display Service Manual - Page 21
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SECTION 5
DIAGRAMS
5-1. BLOCK DIAGRAMS
J
(POWER SW)
CN891
S891
AC L IN
3
POWER
AC L OUT
1
CN605
G
(POWER SUPPLY)
F601
CN604
6.3A
T601
TH601
2
1
D610
AC L
1
AC INLET
AC N
3
L610
D611
3
4
1
8
12
9
RY602
BOOST
RY601
CONV OUT
CN603
Q610
DGC
4
THP601
DGC
DGC
1
D663
RELAY
RELAY
DRIVE
DRIVE
Q690
Q660
IC7501
CN7501
CN610
SENSOR
(B TO B)
(B TO B)
LPV
10
10
LPV
3
AC SENCE
AC SENCE
8
8
AC SENCE
5
L SENCE
L SENCE
7
7
L SENCE
7
DRIVE
DRIVE
3
3
DRIVE
4
I SENCE
I SENCE
4
4
I SENCE
1
V SENCE
V SENCE
6
6
V SENCE
OPV
9
9
OPV
8
PROTECTOR
VCC
VCC
5
5
VCC
Q7501-Q7504
GND
1
1
GND
VCC SW
GND
2
2
GND
Q615
GA
(POWER SENSOR)
IC660
REG SW
I
PH660
4
1
3
2
D820
POWER
G
LED DRIVE
R
Q801,802
S802-S806,
S818,S820
STBY+5V
TH801
H
(USER CONTROL)
4
IC630
1
+200V SHUNT REG
T640
PIT
4
5
R674
D670
C611
6
R675
7
8
PS670
D672
9
PS671
3
10
D677
D673
2
11
PS674
D674
1
12
PS673
D682
T641
PRT
C647
1
7
2
6
CONV OUT
Q640
3
REG SW
4
D678
Q641,Q642
5
SOFT START
Q683
PH680
4
1
POWER SW
3
2
Q680-Q682
T660
D691
1
8
2
6
O
G
5
3
IC690
4
HEATER
HEATER
2
4
REG
SW
3
5
Q691
IC691
B-SS9057<AEP>-B/D-P3
CN801
1
LED 0
2
LED 1
F
5
KEY_DET
8
TEMP_DRI
D
(U-COM,DEFLECTION)
G
CN511
CS1
C.SYNC_1
1
VS1
V.SYNC_1
2
CS2
C.SYNC_2
3
VS2
V.SYNC_2
4
DDC_SDA_1
6
IC002
DDC_SCL_1
8
ROM
DDC_SDA_2
9
5
DDC_SCL_2
11
SDA
7
HOST+5V_1
7
V CLK
6
HOST+5V_2
10
SCL
CN671
4
+200V
IC004
EEP ROM
5
+200V
D035
5V REG
7
+80V
5
9V-2
EEP SDA
Q006
6
9
+15V
A
EEP SCL
11
-15V
CN501
H CENT H
1
LED0
1
H CENT L
3
LED1
2
H CENT N
2
CONT VR
3
F
BRT VR
4
KEY DET
5
ANV_DRV
8
CN505
RXD
3
CN672
TXD
4
1
+200V
3
+80V
CN503
B
5
+15V
ASC_SW
1
6
STBY 8V
OSD_SEL
2
9
HEATER(+)
MOSI
3
H
CLK
4
DAC_SEL
5
7
1
HFLB
6
VRET
7
2
6
DMP CLK
3
IC009
DMP DO
DMP DI
5
DMP ID
CN690
1
USB 6.5V
C
CN506
2
USB 6.5V
LOWB_DET
2
INPUT_SW
6
CN673
CLP
1
I
4
STBY 8V
C.BLK
3
2
POWER SW
D
GREEN
4
3
HEATER SW
VIDEO
8
1
DGC SW
DMP CLK
DMP DO
DMP DI
DMP ID
CS1
9
8
VS1
13
12
CS2
11
10
VS2
1
2
IC013
J
IC701
CN509
CURRENT AMP
ROTATION(-)
2
9
7
+15V
ROTATION(+)
1
V.S2
-
8
6
OUT2
+
CN520
4
VX
5
VY
K
2
H CONV
3
V CONV
PS504
IC001
CPU
40
VX
46
VY
74
H CONV
V CONV
47
100
V SHAPE
P70/IRQ0
DGC
99
HTR SW
98
POWER SW
VDC
32
DDC_SDA_2
Q660
33
VRET
DDC_SCL_2
Q661
L503
96
HV_PROT
S0
HLC
PROT DET
S1
S CAP
S2
CHANGE
69
LLC_LT
S3
Q522-Q525
25
70
EEP_SDA
LLC_RT
26
71
S4
Q527,Q528
EEP_SCL
LLC_LB
RY501
72
LLC_RB
12
73
LED0
LLC_NS
RELAY
13
S5
LED1
DRIVE
14
IC005
LED2
Q509
15
WDT
LED3
39
77
8
KEY_DET
RESET
RESET
44
78
3
P65/AN5
WDT
CK
38
ABL_DET
H CENT
ABL DET
93
HV_DET
H SHAPBAL
HV DET
45
P66/AN6
85
S0
86
H SIZEEFB
S1
87
S2
88
S3
89
S4
20
90
+200V
RXD
S5
19
82
TXD
XTALO
PS501
+200V
X001
4MHz
IC010
9
ASC SW
SYNC PROCESS
16
83
OSD_SEL
XTALI
43
+B DET
17
PIN DRIVE
PMW OUT
10
Q501-Q503
DAC SEL
60
HFBP
65
VRET
21
41
4
24
H DRIVE
DMP_CLK
HPLL
AFC1
HD OUT
22
28
9
25
Q504-Q506
DMP_DO
IIC SDA
SDA
FBP
24
29
10
DMP_DI
IIC SCL
SCL
17
59
7
DMP_ID
HS
HSYNC
53
63,64
28
19
LOWB_DET
VS
H PHASE
DF OUT
79
66
14
23
INPUT SEL
ASC
PWM RFE
HVD OUT
VRET
ABL_DET
IC007
DPU
Q005
39
2
CLP OUT
HTIM
38
8
CBLK OUT
VIDEO OUT
46
48
SONG
VS OUT
7
47
1
7
VIDEO
HS OUT
ERR IN
HD IN
45
28
INPUT_SEL
VDF
9
32
CLK
HCENT
IC901
11
29
+200V
DO
H SHAPE BAL
HV CONTROL
10
19
DI
V SHAPE
12
26
ID
VDC
6
27
FBPIN
V CONV
PS901
41
34
12
HS/CS1
MOIRE
PWM OUT
43
VS1
Q902
42
30
6
15
HS/CS2
H SHAPE
BTC IN
7
2
44
31
5
1
19
8
VS2
H SIZE
3
ERR REF VREG9
IC505
33
TILT
CN901
1ST IK PROT
4
HV ADJ
2
X RAY DET
3
IK DET
1
CN504
1
DGC
5
2
POWER
6
D
3
HTR_SW
7
4
STBY 8V
8
9
IC006
5V REG
I
O
STBY5V
2
IC703
3
5
7
5
5
IC702
6
V OUT
9
10
2
1
4
2
3
3
1
4
T503
+200V
5
HST
IC502
+80V
7
5
2
H CENT OUT
PS503
-15V
11
5
PS502
5
+15V
9
Q510
T504
H CENT
VCC
1
PIN AMP
2
HCC
IC008
CONTROL
-VIN
2
2
Q517
9V REG
Q511
3
4
OUT
9V-1
O
I
1
+VIN
IC003
VEE
9V REG
3
9V-2
O
I
T502
HOC
PIN OUT
1
Q507
5
2
T501
HDT
H OUT
Q508
Q003
H DF OUT
2
11
Q701,Q703-Q706
T701
DFT
5
7
V DF OUT
Q707,Q708
T902
FBT
HV DRIVE
HV OUT
1
HV
Q901,Q904,Q905
Q909
2
T901
14
HRC
HV REG SW
2
5
15
Q908
18
17
6
FV1
16
HV_DET
5
FV2
HV_PROT
11
ABL_DET
B-SS3414<U/C>-B/D-P2
CN512
LLC_RB
LLC_RT
LLC_LB
L
LLC_LT
LLC_LB
CN508
V.DY
V.DY C
V.DY H
H.DY C
H.DY C
H.DY H
H.DY
H.DY H
CN502
+200V
+200V
+80V
-15V
A
+15V
HCENT H
HCENT N
HCENT L
CN507
M
1KV
HV
TO PICTURE TUBE
FV1
FV2