HT-CT770
HT-CT770
45
45
5-20. SCHEMATIC DIAGRAM - POWER Board -
25.4
2.2
0.4
1.3
21.4
0
120.6
21.4
22
22.1
0
6.6
1.3
26.4
25.4
3P
CN901
1
LIVE
3
NEUTRAL
CN902
10
/VACS_REQ
8
PVDD_28V
9
NC
7
PVDD_28V
6
PVDD_28V
5
PVDD_GND
4
PVDD_GND
3
PVDD_GND
2
UN12V
1
AGND
FMX-22SL
D965
+
–
D3SB60F3
D901
ET932
ET931
JL973
JL974
JL902
JL903
JL975
JL976
JL904
JL936
JL977
JL901
JL937
4.7uH
L967
2.2uH
L966
EL816S1(B)(TA)(DTE-S)
PH930
1W
R914
0.33
IC930
D/ST
1
S/OCP
2
VCC
3
GND
4
FB/OLP
5
BD
6
NF
7
MM1431FNRE
IC931
K
1
VREF
2
A
3
LF901
TH901
C905
C907
0.33
250V
C988
0.1
C902
C903
250V
5A
F901
200V
C914
330
450V
C915
100
RR264M-400
D937
400V
0.0033
C939
SARS10
D938
0.1
C930
R997
4.7
R1010
4.7
R1009
0
R101
1
1.5kV
C935
2200p
1.5kV
C938
680p
C931
10
C933
2.2
C934
10
C937
0.0047
C932
0.1
C936
4.7k
R937
2.2k
R935
100
R945
27k
R938
4.7
R947
47k
R936
PDTC144EU
Q931
UDZSUSTE-1730B
D941
DZ2J15000L
D932
KDZTR18B
D972
UDZSUSTE-1730B
D935
UDZSUSTE-1730B
D931
25V
330
C941
DZ2J24000L
D939
CRH02(T5R,SONY,XM)
D942
DZ2J180M0L
D934
RR264M-400
D936
DSC7003R0L
Q930
C940
250V
2.5A
F931
25V
1000
C970
RB068L100TE25
D967
UDZSUSTE-1730B
D973
35V
47
C977
0.1
C968
35V
47
C976
35V
2200
C967
250V
C965
0.0047
0.01
C971
220k
R971
1k
R987
1k
R965
47k
R977
4.7k
R978
35V
47
C980
1.5k
R976
DZ2J180M0L
D930
R932
R934
0.5W
R901
1.5M
R944
POWER CONTROL
IC930
ISOLATOR
SHUNT REGULATOR
IC931
POWER BOARD
(CHASSIS)
(CHASSIS)
CN1005
MAIN
>05S
(6/6)
BOARD
47k 3W (US, CND, TW)
100k 3W (Except US, CND, TW)
T901
5
TRANSFORMER
4
9
1
2
3
13
14
8
6
POWER
7
12
11
10
(CHASSIS)
A932
0
STR-Y6735 (US, CND, TW)
STR-Y6766 (Except US, CND, TW)
PATTERN
SPARK-GAP
LND001
VDR901
2
NC
AC1
(AC IN)
FILTER
LINE
250V
0.22 250V (US, CND, TW)
0.33 250V (Except US, CND, TW)
1000p 250V (US, CND, TW)
3300p 250V (Except US, CND, TW)
1000p 250V (US, CND, TW)
3300p 250V (Except US, CND, TW)
1
~
~
2
4
3
REGULATOR
(US, CND, TW)
(Except US, CND, TW)
(US, CND, TW)
(US, CND, TW) (Except US, CND, TW)
0.15 2W (US, CND, TW)
0.22 2W (Except US, CND, TW)
0.47 1W (US, CND, TW)
2.2 1W (Except US, CND, TW)
PROTECT DETECT
150p (US, CND,
TW)
180p (Except US, CND,
TW)
470p
250V
(US, CND, TW)
10P
10
11
12
13
14
G
F
1
C
D
6
E
2
B
3
A
4
5
7
8
9
E
E
TH902
PDTC144EU
Q952
50V
C978
10
R951
220k
R952
1k
2PA1576R-115
Q950
Q950, 952
THERMAL
DETECT
(Except US, CND, TW)
(Page 41)
• See page 46 for IC Block Diagrams.
Ver. 1.1