Sony HCD-GT220 / HCD-GT440 / HCD-GT660 / MHC-GT220 / MHC-GT440 / MHC-GT660 Service Manual ▷ View online
HCD-GT220/GT440/GT660
HCD-GT220/GT440/GT660
49
49
7-25. SCHEMATIC DIAGRAM - SUB WOOFER Section (GT440/GT660) -
(4/4)
BOARD
L
MAIN
CN443
BOARD
Q1
AMP
AMP
Q2
BOARD
CN443
IC B/D
CN271
10.7
11.5
11.5
0
0
15.4
15.5
0
15.7
0
15.7
0
12.4
0.2
0
0.2
0.1
0.1
-50.8
12.3
1
-1
-51.4
51.3
0
0
0
10
R512
10
R525
10
R526
10
R527
100
R516
100
R521
100
R522
100
R523
1k (GT440)
1.5k (GT660)
R503
1k
R513
2.2k
R529
4.7k
R531
10k
R517
10k
R518
22k
R514
22k
R530
22k
R533
22k
R532
47k
R501
47k
R502
47k
R504
47k
R515
47k
R524
100k
R520
10p
C505
220p
C502
4700p
C503
100V
10
C510
100V
10
C511
100V
100
C509
50V
47
C507
50V
10
C516
50V
10
C517
35V
100
C514
25V
100
C506
25V
22
C504
2SC3052EF-T1-LEF
Q503
2SC3052EF-T1-LEF
Q505
2SC3052EF-T1-LEF
Q507
7
6
5
4
3
2
1
13
12
11
10
9
8
STK404-130S (GT440)
STK404-140N-E (GT660)
IC501
POSI
POSI
SW-IN
SW-NF
SUB
-PRE
+PRE
BIAS+
BIAS-
-VCC
+VCC
-RE
+RE
1W
4.7k
R507
1W
4.7k
R508
2W
4.7k
R505
2SC5625
Q501
2SC3052EF-T1-LEF
Q506
1
R534
1
2
3
4
4P
CN503
SW-OUT
SW-OUT
SW-SP_GND
SW-SP_GND
ISA1235AC1TP-1EF
Q502
MA111-TX
D507
MA111-TX
D502
MA111-TX
D503
MA111-TX
D504
RY501
-1
-2
MAZ8120GMLS0
D501
0.1
C513
0.1
C512
1
2
3
3P
CN501
SW-SIG_IN
SW-SIG_GND
SW-ON/OFF
1
2
3
4
5
6
6P
CN502
+VCC
GND
-VCC
PROTECT
RELAY+
RELAY-
5W
0.22
R511
5W
0.22
R510
JW521
0
JR501
1
R506
100
R509
SUB WOOFER BOARD
IC501
POWER AMP
A
10
1
2
H
B
11
C
7
8
F
9
6
4
3
G
D
5
E
12
OVER LOAD
DETECT
RELAY DRIVE
TEMPERATURE DETECT
TEMPERATURE DETECT
DC DETECT
Q505, 506
(GT440)
(GT660)
13
SUB WOOFER
OUT
SW-SP BOARD
1
SW-OUT
SW-OUT
SW-SP_GND
SW-SP_GND
4
-
+
JK501
14
15
(Page 41)
(Page 45)
(Page 47)
• See page 58 for IC Block Diagrams.
Ver. 1.1
Note: When replacing IC501, please exchange IC441 of
AMP board simultaneously. (HCD-GT660 only)
HCD-GT220/GT440/GT660
HCD-GT220/GT440/GT660
50
50
B E
B
E
B
E
B
E
B
E
B
E
B
E
B
E
B
E
B
E
B E
B E
B
E
B
E
B
E
B
E
B
E
B
E
B
E
B
E
B
E
14
13
26
27
39
40
52
1
Q604
Q708
Q707
Q607
Q702
Q710
Q701
Q705
Q713
Q603
Q704
Q712
Q601
Q606
Q703
Q711
Q706
Q714
Q605
Q602
Q709
IC701
R758
R757
R756
R755
R754
R753
R752
R751
R750
R749
R748
R747
R746
R745
C708
R744
R743
C706
R742
C705
R741
C704
C703
C702
C701
R734
R733
R732
R731
R730
R729
R728
R727
R726
R725
R724
R723
R722
R721
R716
R715
R714
R713
R712
R711
R705
R704
R703
R702
R701
R687
R686
R685
R684
R683
R682
R681
R676
R675
R674
R673
R672
R671
R666
R665
R664
R663
R662
R661
R626
R625
R624
R623
R622
R621
R615
R614
R613
R612
R611
R601
1
54
50
2
5
37
24
53
2
1
26
27
1
4
1
3
1
7
D602
D605
D604
D601
D606
D603
FL701
S627
S626
S625
S624
S623
S622
S621
S616
S615
S614
S613
S612
S611
S601
CN605
CN601
C731
C732
JW604
JW610
JW618
JW619
JW620
JW621
JW622
JW625
JW626
JW612
JW615
JW611
JW624
JW623
JW607
JW608
JW609
JW617
JW627
JW601
JW602
JW603
JW605
JW606
JW613
JW614
JW616
JW628
JW629
C707
C709
R768
R767
R766
R765
R764
R763
R762
R761
C654
C653
C652
C651
1
4
S652
S651
FLUORESCENT INDICATOR TUBE
H
MAIN BOARD
CN901
R
KEY RIGHT
BOARD
CN615
S
KEY LEFT
BOARD
1-872-790-
13
(13)
PANEL BOARD
RETURN
ENTER
ILLUMINATION
DISPLAY
ERASE
PRESET EQ
GROOVE
SURROUND
EQ BAND
PLAY MODE/
TUNING MODE
(GT220/GT440)
(GT660)
D601 – 606
K
A
A
K
A
K
D601 – 606
(STREAM)
(STREAM)
A
K
A
K
A
K
A
K
S601, 611 – 616,
621 – 627
(GT440/GT660)
(GT440/GT660)
TURNING –
TURNING +
–
N
+
.
#9
VOLUME BOARD
1-872-825-
ROTARY
ENCODER
ROTARY
ENCODER
MASTER
VOLUME
VOLUME
OPERATION
DIAL
3
1
2
3
1
2
A
B
C
D
E
F
1
2
3
4
5
6
7
8
9
13
(13)
7-26. PRINTED WIRING BOARDS - PANEL Section -
•
: Uses unleaded solder.
• See page 27 for Circuit Boards Location.
Ref. No. Location
• Semiconductor Location
Ref. No. Location
D601
F-5
D602
D-5
D603
C-5
D604
C-3
D605
D-3
D606
F-3
IC701
B-4
Q601
E-3
Q602
E-3
Q603
E-2
Q604
E-2
Q605
E-2
Q606
E-2
Q607
E-2
Q701
B-6
Q702
B-6
Q703
B-6
Q704
B-6
Q705
B-6
Q706
B-5
Q707
B-5
Q708
B-5
Q709
B-5
Q710
B-5
Q711
B-5
Q712
A-4
Q713
A-4
Q714
A-4
(Page 37)
(Page 52)
(Page 52)
HCD-GT220/GT440/GT660
HCD-GT220/GT440/GT660
51
51
7-27. SCHEMATIC DIAGRAM - PANEL Section -
• See page 36 for Waveforms. • See page 58 for IC Block Diagrams.
R
BOARD
KEY RIGHT
S
BOARD
KEY LEFT
H
(1/4)
BOARD
MAIN
CN901
IC B/D
41
CN615
3.3
3.3
-24
-24
-25.5
-23.7
-20
-23.7
-25.5
-16.3
-21.8
-23.7
-23.8
-23.8
-26
3.3
1.7
1.7
3
2.7
2.6
3.2
-24
-24
-24
-24
-24
-24
-24
-24
-24
-24
-24
-24
-23.7
-16.4
-21.8
-25.5
-23.7
-18.2
-16.4
-20
-20
-16.4
-18.2
-25.5
0
7.6
0
7.6
0.7
0.1
0.1
0.7
0.1
0.7
0.1
0.7
7.6
0
-24.3
3.3
-23.9
3.3
-24.3
-23.9
3.3
-24.3
-23.9
3.3
-24.3
-23.9
3.3
-24.3
-23.9
3.3
-24.3
-23.9
3.3
-24.3
-23.9
3.3
-24.3
-23.9
3.3
-24.3
-23.9
3.3
-24.3
-23.9
3.3
-24.3
-23.9
3.3
-24.3
-23.9
-24.3
-24.3
1
2
3
4
5
6
7
8
9
10 11 12 13
15
16
17
18
19
20
21
22
23
24
25
26
29
30
31
32
33
34
35
36
37
38
39
43
44
45
46
47
48
49
50
51
52
14
28
41
42
40
27
NJU3427FA2
IC701
NC
DR0(T0)
DR1(T1)
DR2(T2)
DR3(T3)
DR4(T4)
DR5(T5)
DR6(T6)
DR7(T7)
DR8(T8)
DR9(T9)
DR10 (T10) DR11 (T11)
DR12(T12)
DR13(T13)
DR14(T14)
DR15(T15)
DR16(S19)
DR17(S18)
DR18(S17)
DR19(S16)
DR20(S15)
DR21(S14)
DR22
(S13)
DR23
(S12)
DR24(S11)
DR26(S9)
DR27(S8)
DR28(S7)
DR29(S6)
DR30(S5)
DR31(S4)
DR32(S3)
DR33(S2)
DR34(S1)
DR35(S0)
NC
VFDP
NC
VSS
XT
XTb
NC
SCK
SI
NC
CSb
RSTb
NC
DR25(S10)
NC
VDD
1L434FV22DOTDF01
1L434FV22DOTDF01
1L434FV22DOTDF01
1L434FV22DOTDF01
1L434FV22DOTDF01
1L434FV22DOTDF01
2SC3052EF-T1-LEF
Q601
2SC3052EF-T1-LEF
Q602
2SC3052EF-T1-LEF
Q603
2SC3052EF-T1-LEF
Q604
2SC3052EF-T1-LEF
Q605
2SC3052EF-T1-LEF
Q606
4.7k
R705
100
R704
100
R703
100
R702
100
R701
1000p
C704
1000p
C703
1000p
C702
C701
1000p
100p
C705
10V
47
C707
0.1
C706
50V
2.2
C731
50V
2.2
C732
47k
R711
47k
R712
1.5k
R713
1.5k
R714
10k
R681
10k
R682
10k
R683
10k
R684
10k
R685
10k
R686
1k
R661
1k
R671
1k
R662
1k
R672
1k
R663
1k
R673
1k
R664
1k
R674
1k
R665
1k
R675
1k
R666
1k
R676
S611
S612
S613
S614
S615
S616
330
R611
470
R612
680
R613
1k
R614
1.5k
R615
S601
330
R601
2SC3052EF-T1-LEF
Q607
10k
R687
22
R715
22
R716
50V
22
C709
2SC3052EF-T1-LEF
Q701
47k
R721
47k
R722
47k
R723
47k
R724
47k
R725
47k
R726
47k
R727
47k
R728
47k
R729
47k
R730
47k
R731
47k
R732
2SC3052EF-T1-LEF
Q702
2SC3052EF-T1-LEF
Q703
2SC3052EF-T1-LEF
Q704
2SC3052EF-T1-LEF
Q705
2SC3052EF-T1-LEF
Q706
2SC3052EF-T1-LEF
Q707
2SC3052EF-T1-LEF
Q708
2SC3052EF-T1-LEF
Q709
2SC3052EF-T1-LEF
Q710
2SC3052EF-T1-LEF
Q711
2SC3052EF-T1-LEF
Q712
47k
R734
47k
R733
2SC3052EF-T1-LEF
Q713
2SC3052EF-T1-LEF
Q714
47k
R741
47k
R742
47k
R743
47k
R744
47k
R745
47k
R746
47k
R747
47k
R748
47k
R749
47k
R750
47k
R751
47k
R752
47k
R753
47k
R754
S626
S625
S622
S621
S623
S624
S627
2.2k
R626
1
7
8
9
10 11 12
5
6
14
19
18
17
13
16
20
15
23 24
21 22
42
44
43
40
37
39
38
41
46
48
47
45
53
49 50
54
2
FL701
1k
R624
680
R623
470
R622
330
R621
1.5k
R625
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
27P
CN601
LED-GND
LED+9V
VFD-CLK
VFD-DATA
SIRCS
STBY-LED
SW-LED
STREAM6
STREAM5
STREAM4
STREAM3
STREAM2
STREAM1
VFD-RESET
VFD-CS
VOL
JOG
KEY3
KEY2
KEY1
KEY0
VDD+3.3V
VREF
D-GND
-VFL
VF
VF
3.3k
R755
3.3k
R756
3.3k
R757
3.3k
R758
0.1
C708
1
2
3
CN605
D-GND
KEY3
KEY
P20
P19
P18
P17
P16
P15
P14
P1
P2
P3
P4
P5
P6
P7
P8
P9
P10
P11
P12
P11
P12
P14
P17
P18
P19
P20
ST1
CLK
DATA
CS
RESET
STBY
SIRCS
JOG
VOL
RESET
ST1
ST2
ST3
ST4
ST5
ST6
SW-LED
STBY
SIRCS
CLK
1G
2G
3G
4G
5G
6G
7G
8G
9G
10G
11G
12G
P13
SW-LED-OUT
P16
P15
P13
P10
P9
P8
P7
P6
P5
P4
P3
P2
P1
8G
9G
10G
11G
12G
13G
DATA
CS
KEY3
14G
ST4
ST2
ST3
SW-LED
ST6
VOL
13G
ST5
KEY0
LED+9V
1G
2G
3G
4G
5G
6G
7G
14G
D-GND
D-GND
AVREF
AVREF
KEY3
PANEL BOARD
FLUORESCENT
IC701
A
10
1
2
J
H
B
13
11
L
C
7
8
I
14
F
9
6
K
4
15
16
3
G
D
5
E
12
STBY-LED
SIRCS
INDICATOR TUBE DRIVER
Q701 - 714
GRID DRIVE
(STREME)
D601 - 604
LED DRIVE
Q601 - 607
ILLUMINATION
ERASE
PRESET
EG
GROOVE
SURROUND
EQ BAND
DISPLAY
ENTER
RETURN
JOG
VOL 1
4
(GT440/GT660)
1
7
-
+
TUNING+
TUNING-
FLUORESCENT INDICATOR TUBE
D601
D602
D603
D604
D605
D606
PLAY MODE/
TUNING MODE
(GT220/GT440)
(GT660)
18
17
0.01
C651
0.01
C652
0.01
C653
0.01
C654
22k
R761
22k
R762
47k
R766
47k
R768
100k
R765
22k
R764
22k
R763
100k
R767
S652
1
2
3
S651
1
2
3
VOLUME BOARD
OPERATION
DIAL
VOLUME
MASTER
ROTARY ENCODER
1
4
VOL
JOG
D-GND
AVREF
ROTARY ENCODER
3P
19
JOG
(Page 38)
(Page 53)
(Page 53)
HCD-GT220/GT440/GT660
HCD-GT220/GT440/GT660
52
52
7-28. PRINTED WIRING BOARDS - KEY Section -
•
: Uses unleaded solder.
• See page 27 for Circuit Boards Location.
Ref. No. Location
• Semiconductor
Location
D607
A-4
D608
A-2
D609
A-1
D611
D-2
D612
H-2
IC601
D-2
R679
R678
R677
R669
R668
R667
R648
R647
R646
R645
R644
R643
R642
R641
1
6
D607
D609
D608
S649
S648
S647
S646
S645
S644
S643
S642
S641
R627
R633
R631
R637
R636
R635
R634
R632
1
3
S638
S637
S636
S635
S634
S628
S633
S632
S631
CN615
R698
R688
R657
R656
R655
C602
C601
R607
R606
R605
R604
R603
R602
3
1
2
1
7
IC601
D611
D612
S608
S607
S606
S605
S604
S603
S602
G
MAIN BOARD
CN903
1-872-793-
KEY TOP BOARD
FOCUS
(BASS)
(VOCAL)
(GUITER)
FOCUS
FOCUS
BASS
D609, S649
VOCAL
D608, S646
GUITAR
D607, S645
+
–
ENTER
(GT660)
R
PANEL BOARD
CN605
1-872-792-
KEY RIGHT BOARD
S602 – 608,
S628,
631 – 638
S641 – 649
DISC 1
DISC 2
DISC 3
DISC SKIP/
EX-CHANGE
;
OPEN/CLOSE
Y
CD-USB
SYNC/REC1
CD-TAPE
SYNC
TAPE REC
PAUSE/START
S
PANEL
BOARD
KEY LEFT BOARD
1-872-791-
13
(13)
STANDBY
D611, S602
TUNER/
BAND
TAPE A/B
CD
AUDIO
USB
SUBWOOFER
D612, S608
(GT440/GT660)
(GT440/GT660)
A
B
C
D
E
F
1
2
3
4
5
6
7
8
9
10
11
13
(13)
13
(13)
(Page 50)
(Page 37)
(Page 50)
Click on the first or last page to see other HCD-GT220 / HCD-GT440 / HCD-GT660 / MHC-GT220 / MHC-GT440 / MHC-GT660 service manuals if exist.