54
54
HCD-GTX777/GTX787/GTX888
HCD-GTX777/GTX787/GTX888
123456789
1
0
1
1
1
4
1
5
12
13
A
B
C
D
E
F
G
H
I
J
6-22.
SCHEMA
TIC DIA
GRAM — PO
WER BO
ARD —
• Ref
er to pa
g
e
67 IC Bloc
k Dia
grams.
J
SUB WOOFER
BOARD
CN810
(Page 56)
K
SUB WOOFER
BOARD
CN810
(Page 56)
G
MIC BOARD
CN909
(Page 62)
N
MAIN BOARD
(2/4)
CN106
(Page 46)
M
MAIN BOARD
(2/4)
CN205
(Page 46)
L
TRANS
BOARD
CN1294
(Page 58)
1 00
k
R 61
7
63V
3300
C678
MA2J1
110GLS0
D604
3.3k1
W
R 61
3
5.6k
R629
0.1
C666
JW693
M
C
28
36
-T
112-1
D632
U DZ
W -T
E 17
- 18
B
0.1
C667
1 00
k
R 62
1
Q666
2SC3052EF-T1-LEF
10V
100
C605
220k
R658
33k
R61
1
1 00
k
R 69
5
U DZ
W -T
E 17
- 18
B
D 61
2
D 61
1
4.7
50V
C600
4.7
50V
C650
56k
R601
2SC3052EF-T1-LEF
Q622
1 k
R 61
9
220k
R678
2SC3052EF-T1-LEF
Q644
1 00
k
R 69
6
680
1W
R632
R667 10k
100V
10
C610
MA2J1
110GLS0
D601
220p
C604
1 k
R 66
9
4.7k
R710
R 61
6
1
1 /4
W
100k
R630
2200p
C651
220k
R657
R
Y646
2SC3052EF-T1-LEF
Q671
2SC3052EF-T1-LEF
Q672
56k R651
2SC3052EF-T1-LEF
Q647
1 k
R 60
0
TH630
10k
R604
+
-
+
-
TM601
GTX777/GTX888
GTX777/GTX787
GTX777
GTX888
GTX777/GTX787
1
2
3
4
10k
R645
3.3k1
W
R 61
4
220p
C654
56k
R603
1 k
R 65
0
22k
R707
2SC3906K-T146E
Q632
4 7k
R 65
4
220k
R677
TH629
2200p
C601
2SC3906K-T146E
Q682
10V
220
C602
R715
10
0
56k
R653
0.1
C617
MA2J1
110GLS0
D602
100
1/4W
R612
2.2k
R607
100k
R631
3 3k
R 62
0
50V
2.2
C61
1
10k
R605
R
Y665
RELA
Y
10V
220
C652
D25XB60
D622
100V
3300
C656
56k
R673
22
50V
C608
10
R622
4 7k
R 65
5
+
-
+
-
TM600
1
2
3
4
1 00
1 /4
W
R 61
5
2 2k
R 62
4
D603
MA2J1
110GLS0
63V
3300
C658
1 00
k
R 67
1
2SC3052EF-T1-LEF
Q612
2 SC
3 90
6 K-
T 14
6 E
Q 63
3
47k
R606
JW691
ISA1235AC1TP-1EF
Q621
1
3
4
5
6
6P
NO621
VH
VH
PWR GND
VL
VL
47k
R692
L680
0.1
C616
R722
33K
JW692
2 2k
R 67
4
0.1
R668
10
R672
2SC3906K-T146E
Q681
68k
R609
D25XB60
D621
MC2838-T1
12-1
D631
68k
R623
100V
3300
C676
0.1
R618
47k
R708
1k
R709
EP602 GROUND PLA
T
E
3 3k
R 67
0
22k
R628
2SC3052EF-T1-LEF
Q61
1
MA2J1
110GLS0
D600
JW681
1 00
V
C 60
9
1 0
1
2
3
4
5
NO631
5P
- V
L
S W
PW
R G
N D
+ VL
S W
R
- G
N D
S W
L-
G N
D
1
2
3
NO632
3P
S W
- PR
O TE
C T
D C
D
E TE
C T
A C
- C
U T
D ET
E C
T
T P0
3 1
T P0
3 2
T P0
3 3
T P0
3 4
T P0
3 5
T P0
3 6
T P0
3 7
T P0
3 8
T P0
3 9
T P0
4 0
T P0
4 1
T P0
4 2
T P0
4 3
T P0
4 4
T P0
4 5
T P0
4 6
T P0
4 7
T P0
4 8
T P0
4 9
T P0
5 0
T P0
5 1
T P0
5 2
TP001
TP002
TP003
TP004
TP005
TP006
TP007
TP008
TP009
TP010
TP01
1
TP012
TP013
TP014
TP015
TP016
T P0
2 9
T P0
2 8
T P0
2 7
T P0
2 6
T P0
2 5
T P0
2 4
T P0
2 3
T P0
2 2
TP017
TP018
TP019
TP020
TP021
123456789
10
11
12
13
14
15
16
17
18
19
20
21
22
IC601 STK412-150C : GTX888
IC602 STK412-170C : GTX777/GTX787
POWER AMP
1
2
3
4
5
6
7
8
8P
CN610
DBFB
SPK-RELA
Y
-GND
UNREG
FAN DETECT
A+9V
FR-IN
A-GND
FL-IN
1
2
3
4
5
6
7
8
8P
CN61
1
-VL
MAIN CENTER GND
AC-CUT
DETECT
STK MUTE
FRONT
RELA
Y
LINK RELA
Y
MAIN PROTECT
THERMAL
V
A
CS
50V
10
C695
100k
R706
R666 4.7k
150
R634
150
R662
150
R635
150
R663
THERMIST
O
R
R719
R625
R 60
2
R 65
2
2SA1207-AA
Q631
L690
1
2
3
3P
CN601
H P-
R
H P-
G N
D
H P-
L
R690
10
0
0
10
R640
1500p
C620
56
R720
4 70
0 P
C 61
4
4 70
0 P
C 61
5
680
1W
R633
100
R71
1
*
1
*
1 R644
R644
1k : EXCEPT
M
X
2.2 : MX
R647 470
+ VH
+ VL
+ R
E F
- R
E F
- V
L
- VH
S U
B -G
N D
+ O
U TP
U T1
+ O
U TP
U T2
- O
U TP
U T1
- O
U TP
U T2
- PR
E
+ PR
E
R -IN
R -N
F
B IA
S
L-IN
L -N
F
N C
G ND
L IM
1
L IM
2
RELA
Y
*
2
*
2
*
2 R602, R652
560 : GTX777/GTX787
620 : GTX888
MX
EXCEPT
M
X
*
3
*
3 R625
2.7k : GTX777
3.3k : GTX787
8.2k : GTX888
POWER
BOARD
IC601
IC602
: GTX888
: GTX777/GTX787
GTX888
SURROUND SPEAKER
L
R
FRONT
SPEAKER
LR
RELA
Y
DRIVE
SWITCH
SWITCH
Q644, Q647
RELA
Y
DRIVE
OVER CURRENT
PROTECT
O
R
OVER CURRENT
PROTECT
O
R
Q631-Q633
MUTING
OVER LOAD
DETEC
OVER LOAD
DETEC
Q671, Q672
THERMAL
DETECT
IC B/D
0.56
C657
0.56
C659
0.56uF
C679
0.7
0
-0.1
18
18
16
0
0.6
16
0
-0.2
-0.2
11.7
11.6
-0.2
-0.2
-54.4
-53.7
-54
0.4
-0.1
30
31
31
-0.2
0.5
-0.2
11.8
38.8
38.8
12.7
-13
-38.8
-55.8
-0.2
-0.2
-0.2
-0.2
-0.2
-53.9
38.8
-0.3
-0.3
-52.3
-0.4
-0.3
-0.2
-0.2
18
12
19
3.3
12
12
0
0.7
202
R721
33K
V
e
r.
1.1
Summary of Contents for HCD-GTX777
Page 107: ...MEMO 107 HCD GTX888 GTX777 GTX787 ...