Sony HCD-GRX50 / HCD-R770 / HCD-RXD7 / MHC-GRX50 / MHC-R770 / MHC-RXD7 Service Manual ▷ View online
– 71 –
Pin No.
Pin Name
I/O
Function
70
XIN
I
System clock input terminal (12.5 MHz)
71
VSS
—
Ground terminal
72
XOUT
O
System clock output terminal (12.5 MHz)
73
RESET
I
System reset signal input from the reset signal generator (IC502) “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”
74
CH
O
Not used (open)
75
BUSY
I
Not used (fixed at “L”)
76
TEST
I
Connected to ground
77
GRAD R1
O
Not used (open)
78
I2C DATA
I/O
Communication data bus with the system controller (IC501)
79
I2C CLK
I/O
Communication data reading clock signal input or transfer clock signal output with the system
controller (IC501)
controller (IC501)
80
GRAD R2
O
Not used (open)
– 73 –
(1)
CASE SECTION
SECTION 8
EXPLODED VIEWS
Les composants identifiés par une
marque
marque
! sont critiquens pour la
sécurité.
Ne les remplacer que par une pièce
portant le numéro spécifié.
Ne les remplacer que par une pièce
portant le numéro spécifié.
The components identified by
mark
mark
! or dotted line with mark
! are critical for safety.
Replace only with part number
specified.
specified.
• Items marked “*” are not stocked since they
are seldom required for routine service. Some
delay should be anticipated when ordering
these items.
delay should be anticipated when ordering
these items.
• The mechanical parts with no reference num-
ber in the exploded views are not supplied.
• Hardware (# mark) list is given in the last of
the electrical parts list.
NOTE:
• -XX and -X mean standardized parts, so they
may have some difference from the original
one.
one.
• Color Indication of Appearance Parts
Example:
KNOB, BALANCE (WHITE) . . . (RED)
KNOB, BALANCE (WHITE) . . . (RED)
↑
↑
Parts Color Cabinet's Color
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
• Abbreviation
AED : North European
AR
AR
: Argentine
AUS : Australian
CND : Canadian
E2
CND : Canadian
E2
: 120 V AC Area in E model
E3
: 240 V AC Area in E model
EA3 : Saudi Arabia
EA4 : Israel
G
G
: German
KR
: Korean
MX : Mexican
SP
SP
: Singapore
TH
: Thai
TW : Taiwan
TCM-230AWR2
not supplied
not supplied
#6
#5
#3
#4
#4
#6
front panel section
not supplied
#5
7
7
8
7
9
8
1
10
10
2
3
4
5
5
4
6
#1
1
X-4950-832-1 HOLDER (R) ASSY, CASSETTE (SILVER)
1
X-4950-971-1 HOLDER (R) ASSY, CASSETTE (GLAY)
2
X-4950-828-1 HOLDER (L) ASSY, CASSETTE (SILVER)
2
X-4950-970-1 HOLDER (L) ASSY, CASSETTE (GLAY)
3
X-4950-751-1 PANEL ASSY, LOADING (SILVER) (GRX50)
3
X-4950-752-1 PANEL ASSY, LOADING (RXD7)
3
X-4950-957-1 PANEL ASSY, LOADING (R770)
3
X-4951-471-1 PANEL ASSY, LOADING (GLAY) (GRX50)
4
3-363-099-01 SCREW (CASE 3 TP2) (3X8) (GLAY)
4
3-363-099-11 SCREW (CASE 3 TP2) (3X8) (SILVER)
5
3-363-099-41 SCREW (CASE 3 TP2) (3X12) (GLAY)
5
3-363-099-71 SCREW (CASE 3 TP2) (3X12) (SILVER)
* 6
4-214-443-01 CASE (SILVER)
* 6
4-215-752-01 CASE (GLAY)
7
4-951-620-01 SCREW (2.6X8), +BVTP
8
4-215-062-01 DAMPER
9
4-985-642-01 CUSHION
10
4-219-087-01 SPRING, TENSION
– 74 –
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
(2)
FRONT PANEL SECTION
51
X-4950-822-1 PANEL ASSY, FRONT (SILVER) (GRX50)
51
X-4950-823-1 PANEL ASSY, FRONT (RXD7: AEP)
51
X-4950-938-1 PANEL ASSY, FRONT (RXD7: CND)
51
X-4950-982-1 PANEL ASSY, FRONT (R770)
51
X-4951-448-1 PANEL ASSY, FRONT (GLAY) (GRX50: E3)
51
X-4951-449-1 PANEL ASSY, FRONT (GLAY) (GRX50: EA3)
52
4-930-336-61 FOOT (FELT)
53
4-962-708-71 EMBLEM (4-A), SONY
54
4-214-775-11 SPRING, PUSH CATCHER RETURN
55
4-214-761-11 CATCHER (B), PUSH
56
4-214-760-11 CATCHER (A), PUSH
57
4-214-384-11 KNOB (VOL) (GRX50/RXD7)
57
4-214-384-51 KNOB (VOL) (R770)
58
4-214-383-11 KNOB (JOG) (GRX50/RXD7)
58
4-214-383-51 KNOB (JOG) (R770)
* 59
4-996-716-01 HOLDER (CDM)
60
4-951-620-01 SCREW (2.6X8), +BVTP
61
4-214-385-11 KNOB (MIC) (GRX50/RXD7)
61
4-214-385-51 KNOB (MIC) (R770)
* 62
A-4417-722-A PANEL BOARD, COMPLETE
(EXCEPT GRX50: EA3)
* 62
A-4419-727-A PANEL BOARD, COMPLETE (GRX50: EA3)
* 63
A-4417-727-A CD SW BOARD, COMPLETE
64
1-773-188-11 WIRE (FLAT TYPE) (23 CORE)
51
54
54
55
56
52
57
58
53
59
60
60
60
60
59
61
62
63
60
64
supplied with
S602
S602
supplied with
S601
S601
– 75 –
– 76 –
Ref. No.
Part No.
Description
Remark
Ref. No.
Part No.
Description
Remark
101
4-965-822-01 FOOT
* 102
1-672-369-11 TRANS BOARD
* 103
3-703-244-00 BUSHING (2104), CORD
(EXCEPT GRX50: E2, E3, TH, MX)
103
3-703-571-11 BUSHING (S) (4516), CORD
(GRX50: E2, E3, TH, MX)
104
1-773-042-11 WIRE (FLAT TYPE) (17 CORE)
105
1-773-024-11 WIRE (FLAT TYPE) (15 CORE)
106
1-783-570-11 WIRE (FLAT TYPE) (19 CORE)
* 107
A-4417-714-A MAIN BOARD, COMPLETE
(GRX50: E2, MX, AR)
* 107
A-4417-718-A MAIN BOARD, COMPLETE (RXD7: CND)
* 107
A-4417-732-A MAIN BOARD, COMPLETE
(GRX50: E3, SP, TW)
* 107
A-4417-868-A MAIN BOARD, COMPLETE (R770/RXD7: AEP)
* 107
A-4419-729-A MAIN BOARD, COMPLETE (GRX50: EA3)
* 107
A-4419-821-A MAIN BOARD, COMPLETE
(GRX50: EA4, TH, KR, AUS)
* 108
4-214-442-01 PANEL, BACK (GRX50: AR)
* 108
4-214-442-61 PANEL, BACK (GRX50: EA4, TH)
* 108
4-215-168-01 PANEL, BACK (GRX50: E2)
* 108
4-215-168-11 PANEL, BACK (RXD7: CND)
* 108
4-215-168-21 PANEL, BACK (R770: AEP, UK, G, AED)
* 108
4-215-168-31 PANEL, BACK (RXD7: AEP, CIS)
* 108
4-215-168-41 PANEL, BACK (R770: CIS)
* 108
4-215-168-51 PANEL, BACK (RXD7: G, AED)
* 108
4-215-168-61 PANEL, BACK (GRX50: E3)
* 108
4-215-168-71 PANEL, BACK (GRX50: EA3)
* 108
4-215-168-81 PANEL, BACK (GRX50: SP)
* 108
4-215-168-91 PANEL, BACK (GRX50: MX)
* 108
4-220-083-01 PANEL, BACK (GRX50: AUS)
* 108
4-220-083-11 PANEL, BACK (GRX50: TW)
* 108
4-220-083-21 PANEL, BACK (GRX50: KR)
109
1-769-977-11 WIRE (FLAT TYPE) (13 CORE)
(GRX50: EXCEPT SP, TW/RXD7: CND)
109
1-773-009-11 WIRE (FLAT TYPE) (15 CORE)
(GRX50: SP, TW/R770/RXD7: AEP)
110
1-233-544-14 TUNER PACK (RXD7: CND)
110
1-233-545-11 TUNER (FM/AM)
(GRX50: EA4, TH, AR, KR, AUS)
110
1-233-545-14 TUNER PACK (GRX50: E2, MX)
110
1-233-546-11 TUNER (FM/MW/SW)
(GRX50: E3, EA3, SP, TW)
110
1-693-443-11 TUNER (FM/AM) (R770: AEP/RXD7: AEP, UK)
! 111
1-575-651-11 CORD, POWER (R770: AEP/RXD7: AEP, UK/
GRX50: EA3, EA4, SP, TW, AR)
! 111
1-575-653-11 CORD, POWER (GRX50: E2, E3, TH, MX)
! 111
1-690-608-11 CORD, POWER (GRX50: AUS)
! 111
1-690-609-21 CORD, POWER (RXD7: CND)
! 111
1-769-079-21 CORD, POWER (GRX50: KR)
! 112
1-569-007-11 ADAPTOR, CONVERSION 2P (GRX50: E3)
! 112
1-569-008-21 ADAPTOR, CONVERSION 2P
(GRX50: EA3, SP, TW)
* 113
A-4417-729-A SUB TRANS BOARD, COMPLETE (RXD7: CND)
* 113
A-4419-030-A SUB TRANS BOARD, COMPLETE
(R770/RXD7: AEP)
114
4-812-134-11 RIVET (DIA. 3.5), NYLON (R770/RXD7: AEP)
M501
1-698-792-11 FAN, DC (EXCEPT RXD7: CND)
! T11
1-433-587-11 TRANSFORMER, POWER (RXD7: CND)
! T11
1-433-588-11 TRANSFORMER, POWER (R770/RXD7: AEP)
! T951
1-433-563-11 TRANSFORMER, POWER (RXD7: CND)
! T951
1-433-564-11 TRANSFORMER, POWER (R770/RXD7: AEP)
! T951
1-433-565-11 TRANSFORMER, POWER (GRX50)
(3)
CHASSIS SECTION
111
111
112
EA3, SP,
TW
TW
AUS
CND
EXCEPT CND
E2, E3, TH, MX
E3
AEP, UK, EA3, EA4,
SP, TW, AR, KR
SP, TW, AR, KR
101
111
111
112
110
102
114
104
105
107
not supplied
T951
#10
#10
#9
#2
#2
#2
#3
#2
#2
#2
M501
#2
#2
CDM38LH-5BD32L
not supplied
not supplied
109
103
108
113
106
T11
The components identified by
mark
mark
! or dotted line with
mark
! are critical for safety.
Replace only with part num-
ber specified.
ber specified.
Les composants identifiés par une
marque
marque
! sont critiques pour la
sécurité.
Ne les remplacer que par une pièce
portant le numéro spécifié.
Ne les remplacer que par une pièce
portant le numéro spécifié.
Click on the first or last page to see other HCD-GRX50 / HCD-R770 / HCD-RXD7 / MHC-GRX50 / MHC-R770 / MHC-RXD7 service manuals if exist.