Sony HCD-GX25 / HCD-RG220 / MHC-GX25 / MHC-RG220 Service Manual ▷ View online
25
HCD-GX25/RG220
• IC601 LC876756C-51W9-E (SYSTEM CONTROL, FLD CONTROL) (PANEL BOARD) (EXCEPT AEP, UK, RUSSIA MODEL)
• IC601 LC876780B-51YO-E (SYSTEM CONTROL, FLD CONTROL) (PANEL BOARD) (AEP, UK, RUSSIA MODEL)
• IC601 LC876780B-51YO-E (SYSTEM CONTROL, FLD CONTROL) (PANEL BOARD) (AEP, UK, RUSSIA MODEL)
Pin No.
Pin Name
I/O
Pin Description
1
SYS MUTE
O
System mute signal output
2
BU1924 DATA
I
GX25, RG220 (except AEP, UK, Russia): Not used. (Connected to ground.)
RG220 (AEP, UK, Russia): Serial data signal input
3
PWR DOWN
I
Power down signal input
4
LC78646 RESET
O
CD reset signal output
5
LC78646 CE
O
CD CE signal output
6
LC78684 CE (MP3)
O
CD CE (MP3) signal output
7
M61519 CLK
O
Clock signal output
8
BU2099FV LCK
O
LCK signal output
9
LC72121 CE
O
CE signal output
10
LC78684 SYNC
I
SYNC signal input
11
RESET
I
Reset signal input from the reset IC
12
XT1
I
Oscillater connect pin (32.768 kHz)
13
XT2
O
Oscillater connect pin (32.768 kHz)
14
VSS1
—
Ground pin
15
CF1
I
Ceramic vibrator connect pin (8.64 MHz)
16
CF2
O
Ceramic vibrator connect pin (8.64 MHz)
17
VDD1
—
Power supply pin (+3.3 V)
18
TAPE A STAT
I
Tape A start signal input
19
TAPE B STAT
I
Tape B start signal input
20
CD ENCODER
I
CD encoder switch signal input
21
SW ON/OFF SENSOR
I
Switch control on/off signal input
22
STREAM IN
I
Stream in signal input
23
VACS
I
VACS signal input
24
KEY2
I
Key signal input 2
25
KEY1
I
Key signal input 1
26
KEY0
I
Key signal input 0
27
PROTECTOR (HOLD)
I
Protector (Hold) signal input
28
REMOCON IN
I
Remote control signal input from the remote control receiver IC
29
BU1924 CLK
I
GX25, RG220 (except AEP, UK, Russia): Not used. (Connected to ground.)
RG220 (AEP, UK, Russia): Serial clock signal input
30 to 41
G12 – G1
O
FLD control signal output
42 to 45
P1 – P4
O
FLD control signal output
46
VDD3
—
Power supply pin (+3.3 V)
47 to 50
P5 – P8
O
FLD control signal output
51
VPP
—
GX25, RG220 (except AEP, UK, Russia): Ground pin
RG220 (AEP, UK, Russia): Power supply pin
52 to 55
P9 – P12
O
FLD control signal output
56
SW1 (a) P13
O
FLD control signal output
57
SW2 (b) P14
O
FLD control signal output
58
SW3 (c) P15
O
FLD control signal output
59
SW4 (d) P16
O
FLD control signal output
60
SW5 P17
O
FLD control signal output
61
SW6 P18
O
FLD control signal output
62
SW7 P19
O
FLD control signal output
63
SW8 P20
O
FLD control signal output
64, 65
P21, P22
O
FLD control signal output
66
ENTER LED
O
Not used in this set. (Open)
67
MD/VIDEO LED
O
Not used in this set. (Open)
68
GAME LED
O
GAME LED (LED612) drive signal output
69
TAPE LED
O
TAPE A/B LED (LED609) drive signal output
26
HCD-GX25/RG220
Pin No.
Pin Name
I/O
Pin Description
70
TUNER LED
O
TUNER/BAND LED (LED608) drive signal output
71
CD LED
O
CD LED (LED607) drive signal output
72
VDD4
—
Power supply pin (+3.3 V)
73
CD VDD
O
CD power control signal output
74
TUNER TUNED
I
Tuner tuning signal input from the tuner unit
75
TUNER STEREO
I
Tuner stereo signal input from the tuner unit
76
CD DRF
I
CD DRF signal input
77
CD WRQ
I
CD WRQ signal input
78
CD NUMBER SENSOR
I
CD number sensor signal input
79
TAPE AMS IN
I
Tape AMS signal input
80
VR ENCODER A
I
VR encoder (VR601) signal input
81
VR ENCODER B
I
VR encoder (VR601) signal input
82
TAPE REEL A
I
Tape reel A signal input
83
TAPE REEL B
I
Tape reel B signal input
84
MODE SW IN
I
Mode switch signal input
85
STREAM 1 LED
O
Stream LED drive signal output
86
STREAM 2 LED/CD MUTE
O
Stream LED drive signal output/CD mute signal output
87
STREAM 3 LED
O
Stream LED drive signal output Not used in this set. (Open)
88
STREAM 4 LED/
O
Stream LED drive signal output/Mechanism power control signal output
MECHA VCC
89
VSS2
—
Ground pin
90
VDD2
—
Power supply pin (+3.3 V)
91
STREAM 5 LED/
O
Stream LED drive signal output/Tape SOL-A drive signal output
TAPE SOL A
92
STREAM 6 LED/
O
Stream LED drive signal output/Tape SOL-B drive signal output
TAPE SOL B
93
POWER LED
O
POWER LED (LED614) drive signal output
94
POWER RELAY
O
Power relay signal output
95
LC72121/M61529/
O
Serial data signal output
BU2099FV DO
96
LC72121 DI
I
Serial data signal input
97
LC72121/BU2099FV CLK
O
Serial clock signal output
98
LC78646/LC78684 DO
O
Serial data signal output
99
LC78646/LC78684 DI
I
Serial data signal input
100
LC78646/LC78684 CLK
O
Serial clock signal output
27
27
HCD-GX25/RG220
5-2. BLOCK DIAGRAM — CD SECTION —
8
7
9
10
80
79
70 LIMIT SW
20
TDO
18
10
VO3(+)
FOIN
20
TIN
3
SPIN
7
MUTE
25
SLIN
17 VO3(–)
11 VO2(+)
12 VO2(–)
26 VO4(+)
27 VO4(–)
2 VO1(+)
1 VO1(–)
A
C
B
D
E
F
LD
PD
RF AMP, FOCUS/TRACKING ERROR AMP,
DIGITAL SIGNAL PROCESSOR, DIGIRAL SERVO PROCESSOR,
DIGITAL FILTER, D/A CONVERTER
IC721
21
FDO
23
SLDO
22
SPDO
25
CONT4
A
B
D
E
F
C
I-V AMP
DETECTOR
LD
PD
LASER DIODE
OPTICAL PICK-UP
BLOCK
(KSS-213D)
2-AXIS
DEVICE
(FOCUS)
(TRACKING)
M702
(SPINDLE)
M701
(SLED)
M
M
FOCUS/TRACKING COIL DRIVE,
SPINDLE/SLED MOTOR DRIVE
IC722
49
48
X701
16.9344MHz
S701
(LIMIT)
79 DATAIN
80 DATACK
5 C2FIN
1 LRSY
2 ADDATA
3 ADBCK
4 ADLRCK
7 CKIN
9 CKOUT
78 RESB
99 I-LC78646/LC78684 DI
98 O-LC78646/LC78684 DO
100 O-LC78646/LC78684 CLK
5 O-LC78646 CE
77 I-CD WRQ
76 I-CD DRF
4 O-LC78646 RESET
60
DATA
59
DATACK
52
C2F
58
LRSY
57
ASDFIN
56
ASDACK
55
ASLRCK
54
16MOUT
10
6
76 66
53
EFLG
50
FSX/16MIN
73 CMDOUT
74 CMDIN
CE
FSYNC
O-LC78684 CE
I-LC78684 SYNC
75 CL
26
MP3RES
64
DO
63
DI
62
CL
78
I-CD NUMBER SENS
20
I-CD ENCODER
9
RIN
LM-R
11
RESET
1
O-SYS-MUTE
94
O-POWER RELAY
27
I-HOLD
S-MUTE
O-POWER
HOLD
61
CE
65
*WRQ
67
DRF
72
CD MUTE
66
*RES
4 OUT1
2 OUT2
M751
(LOADING)
M
LOADING MOTOR DRIVE
IC701
MP3 DECODER
IC801
SYSTEM CONTROLLER
IC601 (1/2)
S751
OPEN/CLOSE
DETECT
OPEN
CLOSE
LEVEL SHIFT
Q731
TABLE ADDRESS
SENSOR
IC731
+
ROTARY
ENCODER
RE701
7
FIN
LM-F
9
RIN
TM-R
4 OUT1
2 OUT2
M741
(TABLE)
M
TABLE MOTOR DRIVE
IC712
7
FIN
TM-F
C
B
42
LCHO
45
RCHO
R-CH
CD-L
A
APC
FIN2
FIN1
LDD
LDS
TIN2
+3.3V
TIN1
XOUT
XIN
RF
4
EFMIN
3
ERROR
CORRECT
EQ,
AGC
COMMAND
INTERFACE
INTERFACE
CLOCK
GENERATOR
PH, BH
RF AMP
TBAL
A/D
CONVERTER
D/A
CONVERTER
EXTERNAL
AUDIO IN
SERIAL OUT
D/A
CONVERTER
SERVO
PROCESSOR
AUTOMATIC
POWER CONTROL
Q701
3
I-POWER DOWN
POWER DOWN
RESET
S-MUTE
O-POWER
HOLD
POWER DOWN
RESET
LM-F
LM-R
• SIGNAL PATH
: CD PLAY
• R-ch is omitted due to same as L-ch.
R-CH
DISC TRAY
ADDRESS DETECT
I/01 – I/016
A0 – A8
MDATA0
– MDATA15
MADRS0
– MADRS8
29 OE
45
OEB
15 WE
42
WEB
16 RAS
41
RASB
31 LCAS
43
CASLB
30 UCAS
44
CASUB
MEMORY
IC802
2-5, 7-10,
35-38, 40-43
23-30, 33-40
60-53, 50
18-21, 24-28
MUTING
Q311
MUTING CONTROL
SWITCH
Q312
TM-F
TM-R
D
TUNER/TAPE/PANEL
SECTION
AMP/POWER SUPPLY
SECTION
AMP/POWER SUPPLY
SECTION
AMP/POWER SUPPLY
SECTION
(RG220:AEP,UK,RU)
• Abbreviation
RU : Russian model
RU : Russian model
(Page 29)
(Page 29)
(Page 29)
(Page 28)
28
28
HCD-GX25/RG220
5-3. BLOCK DIAGRAM — TUNER/TAPE/PANEL SECTION —
CAPSTAN/REEL
MOTOR DRIVE
Q618
PLUNGER DRIVE
(DECK-A)
Q616
M
M
TAPE MECHANISM
DECK BLOCK
(CAPSTAN/REEL)
(DECK-A)
(DECK-B)
96 I-LC72121 DI
97 O-LC72121/BU2099 CLK
9 O-LC72121 CE
74 I-TUNER TUNE
75 I-TUNER STEREO
2 I-BU1924 DI
29 I-BU1924 CLK
95 O-LC72121/M61529/BU2099 DO
G
TU901
TUNER UNIT
AM LOOP
FM ANT
AM ANT
L-CH
R-CH
R-CH
TUNER-L
TU-MUTE
DI
DI
CLK
BIAS OSC
L201
REC BIAS
SWITCH
Q228
+9V
BIAS OSC
Q223
ERASE
HRPE1
(REC/PB/ERASE)
(DECK-B)
HP1
(PB)
(DECK-A)
L-CH
R-CH
R-CH
R-CH
L-CH
R-CH
R-CH
22 I-STREAM-IN
23 I-VACS
21 I-SW ON/OFF SENSOR
BAND-PASS
FILTER
28 I-REMOCON-IN
REMOTE CONTROL
RECEIVER
RM601
FRONT PANEL KEY
81 I-VR-ENCODER-B
80 I-VR-ENCODER-A
ROTARY
ENCODER
VR601
LED DRIVER
Q602-604,607
BUFFER
Q609,610
FLD601
FLUORESCENT
INDICATOR TUBE
MUTING
Q219, 221
PLUNGER DRIVE
(DECK-B)
Q617
LED614
A-MODE
TAPE A STAT
TAPE B STAT
TAPE REEL A
TAPE REEL B
TAPE REEL B
B-SOL
A-SOL
CAPM+
MECHA-VCC
SOL-A
SOL-B
A-HALF
B-HALF
A-PHOTE
B-PHOTE
B-MODE
REC (FWD)
REC (REW)
G1
I
G12
P1
I
P4
•
P5
I
P8
•
P9
I
P22
18
82
83
I-TAPE A STAT
I-TAPE B STAT
I-TAPE B STAT
I-TAPE REEL A
I-TAPE REEL B
I-TAPE REEL B
19
93
O-POWER LED
8
O-BU2099 LCK
79
I-TAPE AMS IN
92
O-TAPE SOL B
91
O-TAPE SOL A
88
O-MECHA VCC
42
I
45
•
47
I
50
•
52
I
65
30
I
41
VACS/STR
VACS/STR
E
VOLUME
I-KEY2
I
I-KEY0
24
I
26
O-STREAM 1 LED
SO
MCLK
LCK
LCK
X601
32.768kHz
13
12
XT2
XT1
7
O-M61529 CLK
16
15
RES601
8.64MHz
CF2
CF1
POWER
HP
F
(RG220:AEP,UK)
SYSTEM CONTROLLER
IC601 (2/2)
FM 75Ω
COAXIAL
LED611
(STREAM1)
ANTENNA
34
32
BIN (L)
AIN (L)
28
27
EQOUT (L)
26
PB-OUT (L)
TAI (L) MUTE
DECK A/B SELECT SWITCH, REC/PB EQ AMP
IC201
REC-
OUT (L)
OUT (L)
REC-IN (L)
21
EQ
24
DO
CLK
CE
TUNED
ST
RDS DATA
RDS INT
MULTI CONTROLLER
IC309
7 BIAS
15
14
6 REC
11 TUNER MUTE
MUTE-ON/OFF
REC MUTE-ON/OFF
9
10 REC MUTE
PB MUTE
8
A/B
13
A/B
REC ON/OFF
SWITCH
Q222, 225
3
DATA
4
CLOCK
5
LCK
18
SO
CLK
DI
13
LM-L (CD)
LM-F
12
LM-R (CD)
LM-R
TAPE-L
REC-L
SP-F
15
14
14
TM-L (CD)
TM-F
TM-R (CD)
TM-R
• SIGNAL PATH
: TUNER (FM/AM)
: TAPE PLAY (DECK-A)
: TAPE PLAY (DECK-B)
: REC
• R-ch is omitted due to same as L-ch.
LM-F
LM-R
TM-F
TM-F
TM-R
DI
SO
CLK
MCLK
LCK
LCK
MECHA-VCC
SOL-A
SOL-B
SOL-A
SOL-B
16
SP RELAY
SP-F
O-GAME LED
O-TAPE LED
O-TUNER LED
O-CD LED
68
•
69
•
70
•
71
LED607
I
LED609,
LED612
AMS
Q210,211
EQ
Q212
AMP/POWER SUPPLY
SECTION
AMP/POWER SUPPLY
SECTION
AMP/POWER SUPPLY
SECTION
D
CD
SECTION
K
AMP/POWER SUPPLY
SECTION
H
AMP/POWER SUPPLY
SECTION
J
AMP/POWER SUPPLY
SECTION
85
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