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14.61. SS, S1, SS2 and SS3-Board Block Diagram
SS
TO P12
SS12
Sustain Drive Board
STB PS
10
TP15V
+15V
4
VDA
1
VDA
2
TO P11
SS11
TPVSUS
VSUS
2
VSUS
3
TO C32
SS32
SOS3
9
IC6706
BUFFER
UMH
8
15
UML
7
13
USH
6
11
USL
5
8
UEH
4
6
UEL
3
4
IC6901
BUFFER
DSHL
14
2
DSLL
15
4
DMHL
16
6
DMLL
17
8
SOS2
19
TH-50PHD6/TH-50PHW6 SS, S1, SS2 and SS3-BOARD Block Diagram
15V
L6713
TPVDA
L6715
TPSOS3
IC6701
FET DRIVER
Q6732
5
12
8
Q6733
6
Q6734
7
14
1
Q6735
IC6702
USH
FET DRIVER
Q6701
9
12
8
Q6702
Q6744
12
12
8
Q6745
IC6703
FET DRIVER
IC6704
FET DRIVER
Q6736
14
12
8
Q6737
14
1
+15V
IC6705
FET DRIVER
UEL
Q6725
Q6729
16
2
7
UEL
Q6730
4
IC6902
FET DRIVER
Q6911
18
12
8
L6930~L6933
IC6905
FET DRIVER
Q6922
16
12
8
Q6923
IC6903
FET DRIVER
Q6917
Q6918
14
12
8
12
14
1
Q6919
Q6920
IC6904
SS-BOARD
SOS DET
Q6711
UMH
S2
Q6714
Q6715
UML
S3
Q6720
S1
L6701
D6711,12
Q6721
Q6722
L6704
L6767
Q6723
Q6724
D6715,16
SS-BOARD
USL
SOS DET
DISCHARGE
Q6741
IC6707
1/2 Vo
D6760
(RED LED)
UEH
VE
Q6727
INSERT
Q6728
D6764
(RED LED)
Q6731
Q6739
TPVe
Q6738
IC6709
R6770
Ve
VE
GENERATOR
TPSVDA
Q6921
L6925
Q6912
Q6924
Q6913
TPSS4
Q6914
Q6915
Q6916
SS34
S34
1
1
SS2
SS57
SS21
SS51
SS52
SS53
SS3
TPSS1
SS58
SS31
SS54
SS55
SS56
TO C3 BOARD
TPVDA
SS35
(C35)
1
Vda 75V
2
Vda 75V
4
78V
5
78V
TO C4 BOARD
SS42
(C42)
1
Vda 75V
2
Vda 75V
4
78V
5
78V
S1
Power Switch Board
POWER SWIT
SW61
PUSH
Sustain Connection
(Upper) Board
Sustain Connection
(Lower) Board
117
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