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
53
53
7-29. SCHEMATIC DIAGRAM - KEY Section -
MAIN
G
BOARD
(1/4)
CN903
PANEL
S
BOARD
PANEL
R
BOARD
CN605
3.2
3.2
SLR-325VCT31P
D608
SLR-325VCT31P
D609
SLR-325VCT31P
D607
1k
R667
1k
R677
1k
R668
1k
R678
1k
R669
1k
R679
S641
S642
S643
S644
S645
S646
S647
S649
1.5k
R645
4.7k
R647
470
R642
1k
R644
2.2k
R646
330
R641
680
R643
10k
R648
1
2
3
4
5
6
6P
CN616
KEY4
D-GND
LED+9V
GUITER_LED_OUT
VOCAL_LED_OUT
BASS_LED_OUT
KEY TOP BOARD
-
ENTER
+
FOCUS
(GUITAR)
GUITAR
VOCAL
(VOCAL)
FOCUS
FOCUS
(BASS)
(BASS)
BASS
GUITAR
VOCAL
BASS
S648
A
1
2
J
H
B
C
7
8
I
F
9
6
K
4
3
G
D
5
E
S607
S606
S605
S604
S603
S602
SLR-325VCT31P
D611
470
R655
470
R602
680
R603
1k
R604
1.5k
R605
2.2k
R606
1k
R688
1k
R698
S608
4.7k
R607
1k
R657
100
R656
SLR-325MCT31
0.22
C601
VCC
OUT
GND
NJL24H400B-SA
IC601
1
3
2
SW-LED-OUT
STBY-LED
SIRCS
KEY0
D-GND
AVREF
LED+9V
KEY LEFT BOARD
IC601
REMOTE CONTROL
/
STANDBY
RECEIVER
1
7
(GT440/GT660)
SUBWOOFER
SUBWOOFER
USB
AUDIO
TAPE A/B
TUNNER/
BAND
CD
/
STANDBY
(GT440/GT660)
D612
S635
S636
S631
S632
S633
S628
S634
S637
S638
330
R631
470
R632
680
R633
4.7k
R637
2.2k
R636
4.7k
R627
1.5k
R635
1k
R634
1
2
3
CN615
3P
D-GND
KEY3
KEY
KEY RIGHT BOARD
DISC 1
DISC 2
DISC 3
OPEN/CLOSE
DISC SKIP/
EX-CHANGE
CD-TAPE
SYNC
CD-USB
SYNC/REC1
TAPE-REC
PAUSE/START
(GT660)
(Page 38)
(Page 51)
(Page 51)
HCD-GT220/GT440/GT660
HCD-GT220/GT440/GT660
54
54
B E
Q903
D901
D906
D910
JL901
JL904
JL906
JL907
JL914
JL915
JL916
JL919
JL920
JL921
JL923
JL924
JL926
R903
R904
R910
R911
R914
R915
R912
R913
CE
B
1
3
1
5
1
11
F904
F905
F906
F907
F908
F909
Q902
W901
R908
CN901
CN903
CN907
LP901
FH907
C908
FH908
FH909
PT901
PT902
FH910
FH911
FH912
FH913
FH914
FH915
FH916
FH917
FH918
S901
RY901
C909
C910
C911
JW917
JW905
JW912
JW901
JW909
JW925
JW922
JW926
JW928
JW911
JW913
JW914
JW915
JW916
JW918
JW919
JW920
JW921
JW929
JW923
JW924
JW927
C914
D902
D903
D904
D905
D908
C907
1-872-053-
11
(11)
TRANSFORMER BOARD
N1
MAIN BOARD
CN001
P1
AMP BOARD
CN442
MAIN POWER
TRANSFORMER
SUB POWER
TRANSFORMER
(AC IN)
NOT REPLACEABLE:
BUILT IN TRANSFORMER
BUILT IN TRANSFORMER
∗
∗
VOLTAGE
SELECTOR
230 – 240V 5220V U120V
9
1
4
5
1
7
19
8
A
B
C
D
E
F
1
2
3
4
5
6
7
8
9
7-30. PRINTED WIRING BOARD - TRANSFORMER Board (GT220/GT660) -
Ref. No. Location
• Semiconductor Location
Ref. No. Location
D901
B-5
D902
E-8
D903
E-8
D904
E-8
D905
E-8
D906
A-5
D908
B-6
D910
F-7
Q902
A-6
Q903
A-6
•
: Uses unleaded solder.
• See page 27 for Circuit Boards Location.
(Page 44)
(Page 37)
HCD-GT220/GT440/GT660
HCD-GT220/GT440/GT660
55
55
7-31. SCHEMATIC DIAGRAM - TRANSFORMER Board (GT220/GT660) -
MAIN
N1
BOARD
CN001
AMP
P1
BOARD
CN442
(4/4)
-26.1
-36.7
-26.7
0.8
0.1
T6.3AL 250V
F904
T6.3AL 250V
F905
T8AL 250V
F908
T8AL 250V
F909
T3.15AL 250V
F906
T3.15AL 250V
F907
50V
10
C909
25V
1000
C911
22
R910
10k
R903
1k
R904
10EDB40-TB3
D902
10EDB40-TB3
D903
10EDB40-TB3
D904
10EDB40-TB3
D905
10EDB40-TB3
D908
1
2
3P
CN901
LIVE
NC
0.1
C907
JW917
JW912
JW909
JW901
1
2
3
4
5
6
7
8
9
10
11
11P
CN907
AC-3F
AC-3
AC-4F
AC-4
VF
VF
D-GND
EVER_10
STBY-RELAY
AC-P
-VFL
63V
220
C908
50V
100
C910
MAZ8300GMLS0
D906
RY901
2SB1238-PQR-TV2
Q902
4.7k
R915
2SC3052EF-T1-LEF
Q903
JW925
JL901
JL902
JL903
JL904
JL905
JL906
JL907
JL914
JL915
JL916
JL919
JL920
JL921
JL923
JL924
JL926
1
3
4
5
6
7
8
9
2
PT902
MC2838-T112-1
D910
1
2
3
4
5
5P
CN903
AC-VH
AC-VL
GND
AC-VL
AC-VH
5
2
16
17
12
14
13
18
1
15
6
10
11
4
7
3
8
9
19
MAIN POWER
PT901
FH915
FH917
FH909
FH916
FH918
FH908
FH911
FH912
FH914
FH913
FH907
FH910
MA111-TX (GT660)
MA2J1110GLS0 (GT220)
D901
∗
47k
R913
∗
R914
22k
R912
50V
C914
4.7
0
R911
1
R908
TRANSFORMER BOARD
A
10
1
2
B
13
11
C
7
8
F
9
6
4
3
D
5
E
12
JW905
(CHASSIS)
-27V REGULATOR
SUB POWER
TRANSFORMER
VOLTAGE
SELECTOR
TRANSFORMER
POWER ON/OFF
RELAY DRIVE
(AC IN)
W901
∗
∗NOT REPRACEABLE:
BILT IN TRANSFORMER
230-240V
S901
220V
120V
U
5
∗D901
18k (GT220)
15k (GT660)
∗R914
3
NEUTRAL
(Page 45)
(Page 41)
HCD-GT220/GT440/GT660
HCD-GT220/GT440/GT660
56
56
B
E
Q903
D901
D906
D910
JL903
JL905
JL906
JL914
JL915
JL921
JL922
JL923
R903
R904
R910
R911
R914
R915
R912
R913
CE
B
B
1
3
1
3
1
11
F904
F906
F907
F909
Q902
W901
R908
JW917
CN901
CN903
CN907
LP901
FH907
FH908
C908
FH909
PT901
PT902
FH910
FH913
FH914
FH917
FH918
S901
RY901
D902
C914
D903
D904
D905
D908
C907
C909
C910
C911
JW905
JW912
JW901
JW909
JW925
JW900
JW914
JW921
JW923
JW911
JW913
JW915
JW918
JW919
JW920
JW922
JW924
JW926
JW927
JW916
N2
MAIN BOARD
CN001
P2
AMP BOARD
CN442
1-872-552-
11
(11)
MAIN POWER
TRANSFORMER
SUB POWER
TRANSFORMER
TRANSFORMER BOARD
(AC IN)
NOT REPLACEABLE:
BUILT IN TRANSFORMER
BUILT IN TRANSFORMER
∗
∗
VOLTAGE
SELECTOR
230 – 240V 5220V U120V
9
4
1
1
7
5
18
8
A
B
C
D
E
1
2
3
4
5
6
7
8
9
7-32. PRINTED WIRING BOARD - TRANSFORMER Board (GT440) -
Ref. No. Location
• Semiconductor Location
Ref. No. Location
D901
A-5
D902
E-8
D903
E-8
D904
E-8
D905
E-8
D906
B-6
D908
B-5
D910
E-7
Q902
A-6
Q903
B-7
•
: Uses unleaded solder.
• See page 27 for Circuit Boards Location.
(Page 46)
(Page 37)
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