Sony HCD-GT220 / HCD-GT440 / HCD-GT660 / MHC-GT220 / MHC-GT440 / MHC-GT660 Service Manual ▷ View online
HCD-GT220/GT440/GT660
65
Pin No.
Pin Name
I/O
Description
55
I-ENCD
I
Disc table address sensor (rotary encoder) input terminal (A/D input)
56
I-KEY4
I
Front panel key input terminal (A/D input) (GT660)
57
I-PROTECTOR
I
AC power detection signal input, and protect signal input terminal
58
I-HP/MIC
I
Headphone and microphone plug insert detection signal input terminal (A/D input)
59
I-VACS
I
VACS signal input terminal (A/D input)
60
I-TAPE-STAT
I
Deck-A/B cassette detection signal input from the tape mechanism deck block, and Record-
ing-proof detection signal input from the tape mechanism deck block (A/D input)
ing-proof detection signal input from the tape mechanism deck block (A/D input)
61 to 64
I-KEY0 to I-KEY3
I
Front panel key input terminal (A/D input)
65
I-JOG
I
Jog dial pulse input from the rotary encoder (multi jog) (A/D input)
66
I-VOL
I
Jog dial pulse input from the rotary encoder (VOLUME) (A/D input)
67
I-STREAM
I
Audio signal input for stream LED (A/D input)
68
O-NJM3427FA2-CS
O
Chip select signal output to the fl uorescent indicator tube driver
69
O-NJM3427FA2
-RESET
O
System reset signal output to the fl uorescent indicator tube driver “L”: reset
70 to 75
O-S-LED1 to O-S-LED6
O
LED drive signal output of the stream indicator “H”: LED on
76
O-SWR-LED
O
LED drive signal output of the SUBWOOFER indicator “H”: LED on (GT440/GT660)
77
O-STBY-LED
O
LED drive signal output terminal for STANDBY indicator “H”: LED on
78
I-REEL-A
I
Deck-A tape reel rotating detection signal input from the tape mechanism deck block
79
I-REEL-B
I
Deck-B tape reel rotating detection signal input from the tape mechanism deck block
80
I-RDS-CLK
I
RDS data transfer clock signal input terminal Not used
81
I-SIRCS-IN
I
SIRCS signal input from the remote control receiver
82
NC
-
Not used
83
I-WAKEUPKEY
I
Wake up signal input terminal
84
O-NJM3427A-DATA
O
Serial data output to the fl uorescent indicator tube driver
85
O-MOTOR
O
Capstan/reel motor drive signal output terminal “H”: motor on
86
O-NJM3427A2-CLK
O
Serial data transfer clock signal output to the fl uorescent indicator tube driver
87
O-B-SOL
O
Deck-B side trigger plunger drive signal output terminal “H”: plunger on
88
O-A-SOL
O
Deck-A side trigger plunger drive signal output terminal “H”: plunger on
89
TOOL0
I
Not used
90
RESET
I
System reset signal input from the reset signal generator “L”: reset
For several hundreds msec. after the power supply rises, “L” is input, then it changes to “H”
For several hundreds msec. after the power supply rises, “L” is input, then it changes to “H”
91
XT2
O
Sub system clock output terminal (32.768 kHz)
92
XT1
I
Sub system clock input terminal (32.768 kHz)
93
FLMD0
I
Not used
94
X2
O
Main system clock output terminal (20 MHz)
95
X1
I
Main system clock input terminal (20 MHz)
96
REGC
I
External capacitor connection terminal for regulator
97
VSS
-
Ground terminal
98
EVSS0
-
Ground terminal
99
VDD
-
Power supply terminal (+3.3V)
100
EVDD0
-
Power supply terminal (+3.3V)
66
HCD-GT220/GT440/GT660
SECTION 8
EXPLODED VIEWS
1
2-892-161-61 PANEL, LOADING (GT220)
1
2-892-161-71 PANEL, LOADING (GT440)
1
2-892-161-82 PANEL, LOADING (GT660)
2
3-363-099-32 SCREW (CASE 3 TP2)
3
2-599-855-11 CASE
(SIDE-L)
4
2-599-854-11 CASE
(TOP)
5
2-675-793-01 COVER
(OP)
6
3-087-053-01 +BVTP2.6
(3CR)
7
2-599-856-11 CASE
(SIDE-R)
8
1-500-868-11 CORE,
FERRITE
9
1-832-647-21 CABLE, FLEXIBLE FLAT (27 CORE)
10
A-1234-821-A USB R BOARD, COMPLETE
#1
7-685-646-79 SCREW +BVTP 3X8 TYPE2 IT-3
#3
7-685-647-79 SCREW +BVTP 3X10 TYPE2 IT-3
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
8-1. CASE SECTION
Note:
• -XX and -X mean standardized parts, so
• -XX and -X mean standardized parts, so
they may have some difference from the
original one.
original one.
• Items marked “*” are not stocked since
they are seldom required for routine ser-
vice. Some delay should be anticipated
when ordering these items.
vice. Some delay should be anticipated
when ordering these items.
• The mechanical parts with no reference
number in the exploded views are not sup-
plied.
plied.
• Color Indication of Appearance Parts Ex-
ample:
KNOB, BALANCE (WHITE) . . . (RED)
↑
↑
Parts Color Cabinet’s Color
The components identifi ed by mark 0
or dotted line with mark 0 are critical for
safety.
Replace only with part number specifi ed.
or dotted line with mark 0 are critical for
safety.
Replace only with part number specifi ed.
1
#1
#1
#1
#1
#1
KEY TOP board section
MAIN board
section
section
CD mechanism deck
section-1
section-1
2
10
2
8
2
2
3
6
4
7
#3
#3
#3
#3
6
5
9
not
supplied
supplied
67
HCD-GT220/GT440/GT660
8-2. KEY TOP BOARD SECTION
51
3-087-053-01 +BVTP2.6
(3CR)
52
2-892-160-01 PANEL (HEAD-B) (GT220/GT440)
53
X-2179-679-1 BUTTON
FOCUS
ASSY
(BASS, VOCAL, GUITAR, ENTER,
−) (GT660)
54
2-892-297-01 BUTTON
(FOCUS)
TOP
(FOCUS, FOCUS, FOCUS, +) (GT660)
55
4-217-485-21 EMBLEM (5-A), SONY
56
2-892-159-01 PANEL, (HEAD-A) (GT660)
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
not supplied
(KEY TOP board)
(KEY TOP board)
TC mecha deck section
not supplied
(PANEL SUPPORT board)
(PANEL SUPPORT board)
51
51
56
54
55
55
52
53
51
51
(GT660)
(GT220/GT440)
68
HCD-GT220/GT440/GT660
8-3. TC MECHA DECK SECTION
101
1-417-656-23 MECHA DECK (CWN42FF609)
102
1-832-826-21 CABLE, FLEXIBLE FLAT (11 CORE)
103
4-235-777-01 BELT
(FR)
104
2-683-559-01 BELT
(AF)
105
2-683-560-01 BELT
(BF)
106
3-087-053-01 +BVTP2.6
(3CR)
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
not supplied
not
supplied
supplied
not supplied
not supplied
101
102
106
106
106
PANEL board section
not supplied
103
104
105
103
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