Sony HCD-GX25 / HCD-RG220 / MHC-GX25 / MHC-RG220 Service Manual ▷ View online
53
53
HCD-GX25/RG220
(Page 45)
5-30. SCHEMATIC DIAGRAM — TRANSFORMER SECTION (HCD-RG220: EA MODEL) —
D906
D902
D903
D905
D904
CN902
C902
CN901
C901
T902
T901
S901
RY901
F902
F905
F903
F904
F906
*
*
NOT REPLACEABLE:
BUILT IN TRANSFORMER
BUILT IN TRANSFORMER
54
54
HCD-GX25/RG220
IC721 LC78646E-E (BD Board)
5-31. IC BLOCK DIAGRAMS
60
59
58
57
56
55
54
53
52
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 28 29 30 31 32 33 34 35 36 37 38
SLCO
SLCIST
EFMIN
RF
FDO
SPDO
SLDO
GPDAC
FDO
SPDO
SLDO
GPDAC
CONT4
CONT5
SBCK/CONT6
SBCK/FG
DEFECT
CONT4
CONT5
SBCK/CONT6
SBCK/FG
DEFECT
V/P
V/P
FSEQ
MONI1
MONI2
MONI3
MONI4
MONI5
V/P
FSEQ
MONI1
MONI2
MONI3
MONI4
MONI5
VSS
VDD(3.3V)
69 68 67 66
65 64 63 62 61
VSS
VDD5
DRF
RES
WRQ
DO
DI
CL
CE
79
78 77 76 75 74 73 72 71
LDS
80
LDD
FR
VVDD
PCKIST
VVSS
PDO2
PDO1
CONT1
CONT2
70
CONT3
WRQ
DO
DI
CL
CE
CE
FR
VVDD
PCKIST
VVSS
SBCK/FG
PDO2
PDO1
CONT1-3
SBCK/CONT6
CONT4,5
CONT4,5
DRF
WRQ
DO
DI
CL
CE
LDS
LDD
LDS
LDD
FR
VVDD
PCKIST
VVSS
PDO2
PDO1
CONT1
CONT2
CONT3
RFVDD
RFVSS
FIN1
FIN2
TIN1
TIN2
VREF
FIN1
FIN2
TIN1
TIN2
REFI
REFI
DEFECT
FE
TEC
TE
RFMON
JITTC
ADAVDD
ADAVSS
TDO
SLCO
SLCIST
EFMIN
RF
FIN1
FIN2
TIN1
TIN2
VREF
REFI
FE
TEC
TE
RFMON
JITTC
JITTC
ADAVDD
ADAVSS
ADAVDD
ADAVSS
TDO
DATA
DATACK
LRSY
ASDFIN
ASDACK
ASLRCK
DATA
DATACK
LRSY
RVDD
RVSS
RCHO
LCHO
LVSS
LVDD
ASDFIN
ASDACK
ASLRCK
16MOUT
EFLG
C2F
FSX/16MIN
EFLG
C2F
FSX/16MIN
XVSS
XIN
XOUT
XVDD
16MOUT
XVSS
XIN
XOUT
XVDD
XVSS
XIN
XOUT
XVDD
RVDD
RCHO
RVSS
LVSS
LCHO
LVDD
DATA
DATACK
LRSY
ASDFIN
ASDACK
ASLRCK
16MOUT
EFLG
C2F
FSX/16MIN
XVSS
XIN
XOUT
XVDD
RVDD
RCHO
RVSS
LVSS
LCHO
LVDD
39 40
DOUT
TEST
51
50
49
48
47
46
45
44
43
42
41
+
–
MIX
PH
BH
MONI
CONT
CONT
AGC
+
–
+
–
+
–
+
–
+
–
+
–
LPF
TBAL
TBAL
RAM
TDO
TRACK JUMP
SW
D/A
APC
SUBCODE DECODE CRC
GENERAL PURPOSE
PORTS
8FS
DIGITAL FILTER
1BIT DAC
LPF
ERROR
CORRECTION
AUDIO CD
MONITOR SIGNAL SELECTOR
EXTERNAL
AUDIO IN
AUTO ADJUST
FRAME SYNC
DETECT,PROTECT,INSERT,
EFM DECODE
A/D
CLOCK
GENERATOR
COMMAND
INTERFACE
INTERFACE
SERVO PROCESSOR
LEVEL SET
+
–
S/H
SW
DRF
DRF
ATTENUATION
DEEMPHASIS
INTERPOLATION
MUTE
RUPTURE DEFECT
SLICE LEVEL
CONTROL
CLV,CAV
CONTROL
SERIAL
OUT
AUDIO OUT
RAM
JITTER
DETECT
PLL
VCEC
FE
TE
TEC
RF
RFMON
VREF
SPDO
SLDO
GPDAC
FSEQ
MONI1-5
FDO
LPF
LPF
EQ
IC301 M61529FP (MAIN Board)
IC701, 712 BA6956AN (DRIVER Board)
1
2
3
4
5
6
7
8
9
CONTROL LOGIC
TSD
VREF
OUT2
OUT1
RNF
VM
VCC
FIN
GND
RIN
1
REF
2
MIC
3
INA1
REF
EXTERNAL
INPUT ATT
INPUT ATT
INPUT
ATT
4
INB1
5
INC1
6
IND1
7
RECA1/INEX1
8
RECB1
9
TMI1
10
TMO1
11
TCA1
12
TCB1
13
TCC1
14
TOUT1
16
BB A1
17
BB B1
15
VOLIN1
VOCAL
CUT
TONE ATT
+
TONE CONTROL
(BASS/MID/TREBLE)
ELECTRICAL
VOLUME
18
OUT1
19
SAOUT
20
VCC
BASS
BOOST
21
DATA
MCU
INTERFACE
42
SUR1/DPL1
41
SUR2/DPL2
40
INA2
INPUT
ATT
39
INB2
38
INC2
37
IND2
36
RECA1/INEX2
35
RECB2
34
TMI2
33
TMO2
32
TCA2
31
TCB2
30
TCC2
29
TOUT2
27
BB A2
26
BB B2
28
VOLIN2
+
TONE ATT
TONE CONTROL
(BASS/MID/TREBLE)
ELECTRICAL
VOLUME
25
OUT2
24
SWOUT
23
GND
BASS
BOOST
22
CLOCK
+
SURROUND
OR
DPL BUFFER
+
55
HCD-GX25/RG220
IC201 HA12237F (MAIN Board)
31
PB-NF1 (L)
32
AIN (L)
33
RIP
34
BIN (L)
35
REC-RETURN
36
GND
37
BIN (R)
38
NC
39
AIN (R)
40
PB-NF1 (R)
1
PB-NF2 (R)
2
PB-EQ (R)
3
EQOUT (R)
4
TAI (R)
5
PBOUT (R)
6
NC
7
RECIN (R)
8
ALC (R)
9
NC
10
RECOUT (R)
15 REC MUTE OFF/ON
14 MUTE ON/OFF
13
A/B
(REC RETURN ON/OFF)
(REC RETURN ON/OFF)
12 HIGH/NORM
11 ALC ON/OFF
30
PB-NF2 (L)
29
PB-EQ (L)
28
EQOUT (L)
27
TAI (L)
26
PBOUT (L)
25
NC
24
RECIN (L)
23
ALC (L)
22
NC
21
RECOUT (L)
EQ
ALC
19 IREF
18 GND
17 ALC DET
EQ
20 TEST MODE
16 VCC
93/120
(HIGH/NORM)
MUTE
A
B
A
B
RETURN SW
RETURN SW
93/120
(HIGH/NORM)
MUTE
56
HCD-GX25/RG220
SECTION 6
EXPLODED VIEWS
NOTE:
• The mechanical parts with no reference
number in the exploded views are not supplied.
• Items marked “*” are not stocked since
they are seldom required for routine service.
Some delay should be anticipated
when ordering these items.
Some delay should be anticipated
when ordering these items.
• Accessories are given in the last of this
parts list.
• Abbreviation
CND : Canadian model
E2
E2
: 120 V AC Area in E model
E3
: 240 V AC Area in E model
E51 : 220 V AC Area in E model
AUS : Australian model
AR
AUS : Australian model
AR
: Argentina model
EA
: Saudi Arabia model
KR
: Korea model
MX : Mexican model
RU
RU
: Russian model
TW
: Taiwan model
Ref. No.
Part No.
Description
Remark
6-1. MAIN SECTION
Ref. No.
Part No.
Description
Remark
not
supplied
not supplied
not supplied
not supplied
(VIDEO OUT board)
(VIDEO OUT board)
#1
#2
#1
#1
#1
#1
#1
#1
#3
#1
#1
#1
#1
#1
#1
1
1
3
4
5
1
2
1
front panel section
main board section
CDM74F-K6BD71A,
CDM74F-K6BD72
CDM74F-K6BD72
A
A
TU901
6
#1
M731
1
3-363-099-31 SCREW (CASE 3 TP2)
2
4-245-184-21 CASE (SIDE-R) (EXCEPT AEP,UK,RU)
2
4-245-184-31 CASE (SIDE-R) (AEP,UK,RU)
3
4-245-183-21 CASE (SIDE-L) (EXCEPT AEP,UK,RU)
3
4-245-183-31 CASE (SIDE-L) (AEP,UK,RU)
4
4-244-662-01 CD DOOR (GX25)
4
4-244-662-11 CD DOOR (RG220)
5
4-244-849-01 CASE (TOP) (EXCEPT AEP,UK,RU)
5
4-244-849-11 CASE (TOP) (AEP,UK,RU)
6
1-769-939-11 WIRE (FLAT TYPE) (11 CORE) (EXCEPT AEP,UK)
6
1-773-003-11 WIRE (FLAT TYPE) (15 CORE) (AEP,UK)
M731
1-763-072-11 FAN, DC (RG220)
TU901
1-693-625-11 TUNER PACK (FM/AM) (ANTENNA) (US,CND)
TU901
1-693-626-11 TUNER PACK (FM/AM) (ANTENNA) (AEP,UK)
TU901
1-693-627-11 TUNER PACK (FM/AM) (ANTENNA) (RU)
TU901
1-693-628-11 TUNER PACK (FM/AM) (ANTENNA)
(EXCEPT US,CND,AEP,UK,RU)
#1
7-685-647-79 SCREW +BVTP 3X10 TYPE2 N-S
#2
7-685-871-01 SCREW +BVTT 3X6 (S)
#3
7-685-872-09 SCREW +BVTT 3X8 (S)
The components identified by
mark 0 or dotted line with mark
0 are critical for safety.
Replace only with part number
specified.
mark 0 or dotted line with mark
0 are critical for safety.
Replace only with part number
specified.
Les composants identifiés par une
marque 0 sont critiques pour
la sécurité.
Ne les remplacer que par une piéce
portant le numéro spécifié.
marque 0 sont critiques pour
la sécurité.
Ne les remplacer que par une piéce
portant le numéro spécifié.
Click on the first or last page to see other HCD-GX25 / HCD-RG220 / MHC-GX25 / MHC-RG220 service manuals if exist.