HT-CT780
HT-CT780
45
45
• See page 35 for Waveforms. • See page 50 for IC Block Diagrams.
5-14. SCHEMATIC DIAGRAM - MAIN Section (8/8) -
Note:
IC601 to IC603 and IC605 on the MAIN board cannot replace with single.
When these parts are damaged, replace the complete mounted board.
3.5
6.1
1
3.5
3.3
0.7
1.1
5.8
6.9
1.3
3.3
0.7
4.4
3.3
5.8
3.3
4.9
3.3
0.7
5.8
6.6
1
3.3
0.7
5.6
8.6
15.5
4.1
10.4
15.5
5.9
5.6
0
0
0.1
11
12
13
14
10
C639
22
C617
10
C635
10
C615
1
C633
1
C636
0.1
C613
0.1
C611
22
C616
0.022
C610
1
C634
0.1
C628
C623
10V
100
9P
CN601
/VACS_REQ
1
PVDD_28V
2
PVDD_28V
3
PVDD_28V
4
PVDD_GND
5
PVDD_GND
6
PVDD_GND
7
UN12V
8
AGND
9
SP_1.3V
SP_5V
RG_1V
PVDD_28V
DD_6V
SP_3.3V
E_4V
E_12V
FB602
MM3411A50NRE
IC604
1
VDD
2
GND
3
CE
4
NC
5
VOUT
JL614
JL611
JL609
JL616
JL613
3.3k
R609
3.3k
R607
R605
22k
R606
22k
10k
R617
10k
R608
10k
R621
PCONT_SPARTA
PVDD_GND
VACS_REQ
BD00IC0WHFV-GTR
IC605
VO
1
FB
2
GND
3
EN
4
NC
5
VCC
6
RT8295ALZSP
IC602
BOOT
1
VIN
2
SW
3
GND
4
FB
5
COMP
6
EN
7
SS
8
JL603
JL605
JL606
JL602
JL601
JL612
JL617
JL615
JL610
JL604
1k
R601
4.7k
R603
15k
R610
15k
R604
R602
1k
10
C605
0.1
C603
0.022
C601
0.1
C602
10
C606
10
C604
0.1
C608
RT8295ALZSP
IC601
BOOT
1
VIN
2
SW
3
GND
4
FB
5
COMP
6
EN
7
SS
8
FB604
PCONT_2
FB606
FB607
FB608
6.3V
470
C618
JL607
0.01
C1806
1k
R1807
10k
R1808
10k
R1801
TPS2065CDBVR
IC1802
OUT
1
GND
2
FL
T
3
EN/EN
4
IN
5
220p
C1807
6.3V
220
C1808
CN001
1
2
3
4
0
R611
0
R612
0.1
C653
0
R613
10V
100
C612
6.3V
220
C650
1SR154-400TE-25
D601
1SR154-400TE-25
D602
10k
R620
22k
R619
10
C624
1
C642
4V
220
C648
10
C625
0.1
C651
22
C626
22
C627
22k
R616
680
R614
15k
R615
0.1
C632
0.1
C640
22
C645
0.1
C652
10
C647
22
C646
6.3V
470
C619
6.8k
R624
22k
R625
220
R623
TPS542941PWPR
IC603
VIN1
1
VBST1
2
SW1
3
PGND1
4
EN1
5
PG1
6
VFB1
7
GND
8
VREG5
9
VFB2
10
PG2
11
EN2
12
PGND2
13
SW2
14
VBST2
15
VIN2
16
1
C638
1SR154-400TE-25
D1801
0.1
C1805
10
C1801
15k
R1811
15k
R1810
2.2uH
L607
10uH
L604
10uH
L602
2.2uH
L608
D_GND
SP_3.3V
SP_5V
D_GND
D_GND
E_12V
DD_6V
DD_6V
D_GND
E_4V
USB_DP
PCONT_USB
USB_F
AUL
T
USB_DM
IC602
IC601
DC/DC CONVERTER
IC604
+5V REGULATOR
IC605
+3.3V REGULATOR
IC603
DC/DC CONVERTER
MAIN BOARD (8/8)
BUS8
BOARD
MAIN
>021S
(6/8)
>022S
BOARD
(7/8)
MAIN
VBUS SWITCH
IC1802
CN902
BOARD
POWER
>02S
(CHASSIS)
(CHASSIS)
(CHASSIS)
LN502
LN1801
LN1802
DC/DC CONVERTER
UPDATE
>008S
BOARD
(3/8)
MAIN
>005S
BOARD
(2/8)
MAIN
>023S
BOARD
(7/8)
MAIN
>009S
BOARD
(3/8)
MAIN
>013S
BOARD
(4/8)
MAIN
>015S
BOARD
(5/8)
MAIN
10
11
12
13
14
G
F
1
C
D
6
E
2
B
3
A
4
5
7
8
9
(Page 42)
(Page 41)
(Page 40)
(Page 44)
(Page 39)
(Page 40)
(Page 49)
(Page 44)
(Page 43)