Sony HCD-RG121 / MHC-RG121 Service Manual ▷ View online
45
HCD-RG121
• IC601 LC876972B-52S2-E (SYSTEM CONTROLLER) (PANEL BOARD)
Pin No.
Pin Name
I/O
Description
1
O-MP3 CS
O
CS output to CD Digital Processor(Not used)
2
O-MP3 LP MOTER
O
Motor signal output
3
I-MP3 ACK SOL-B
I
Motor signal input
4
O-MP3 REQ SOL-A
O
Motor signal output
5
I-SCOR
I
CD Scor input
6
O-MP3 RESET
O
RESET output to CD Digital Processor
7
I-BU1924 DATA
I
Data input(Not used)
8
I-BU1924 CLK
I
Clock input(Not used)
9
I-VOLUME-IN1
I
Volume signal input from the encoder
10
I-VOLUME-IN2
I
Volume signal input from the encoder
11
RESET
I
Reset input
12
I-XT1
I
Connection for input a crystal resonator
13
I-XT2
O
Connection for input a crystal resonator
14
VSS1
–
Ground
15
CF1
I
Connection for input a ceramic resonator
16
CF2
O
Connection for input a ceramic resonator
17
VDD1
–
Power supply
18
I-PROTECT
I
Power amplifier circuit protection signal input
19
WFR/HP/MIC-IN
I
SubWoofer or Headphone detection signal input
20
I-CD ENCODER
I
Signal input from the CD encoder
21
I-CD OPEN/CLOSE
I
CD tray open switch signal input
22
I-TAPE A START
I
TAPE A switches signal input
23
I-TAPE B START
I
TAPE B switches signal input
24
I-STREAM/VACS
I
Stream/Vacs signal input
25
I-KEY 3
I
Function key input
26
I-KEY 2
I
Function key input
27
I-KEY 1
I
Function key input
28
I-SIRDS-IN
I
Data input from the remote contorol receiver
29
I-AC CUT
I
Power down signal input
30
G13
O
FL tube grid signal output
31
G12
O
FL tube grid signal output
32
G11
O
FL tube grid signal output
33
G10
O
FL tube grid signal output
34
G9
O
FL tube grid signal output
35
G8
O
FL tube grid signal output
36
G7
O
FL tube grid signal output
37
G6
O
FL tube grid signal output
38
G5
O
FL tube grid signal output
39
G4
O
FL tube grid signal output
40
G3
O
FL tube grid signal output
41
G2
O
FL tube grid signal output
42
G1
O
FL tube grid signal output
43
S1
O
FL tube segment signal output
44
S2
O
FL tube segment signal output
45
S3
O
FL tube segment signal output
46
VDD3
–
Power supply
47
S4
O
FL tube segment signal output
48
S5
O
FL tube segment signal output
46
HCD-RG121
Pin No.
Pin Name
I/O
Description
49
S6
O
FL tube segment signal output
50
S7/METER-SW1
O
FL tube segment signal output
51
-VPP
–
Power supply (-)
52
S8/METER-SW2
O
FL tube segment signal output
53
S9/METER-SW3
O
FL tube segment signal output
54
S10/SW1
O
FL tube segment signal output
55
S11/SW2
O
FL tube segment signal output
56
S12/SW3
O
FL tube segment signal output
57
S13/SW4
O
FL tube segment signal output
58
S14/SW5
O
FL tube segment signal output
59
S15/SW6
O
FL tube segment signal output
60
S16/SW7
O
FL tube segment signal output
61
S17/SW8
O
FL tube segment signal output
62
S18/SW9
O
FL tube segment signal output
63
S19/SW10
O
FL tube segment signal output
64
S20
O
FL tube segment signal output
65
S21
O
FL tube segment signal output
66
I-SPEC/MODE/METER
I
METER swich input
67
I-TUNED-IN
I
Tuning a frequency signal input
68
I-STEREO-IN
I
Stereo tuning signal input
69
I-ASM-IN
I
ASM signal input
70
I-REEL-A-IN
I
A deck photo sensor signal input
71
I-REEL-B-IN
I
B deck photo sensor signal input
72
VDD4
–
Power supply
73
I-CD Num Senser
O
Table address sensor swich signal input
74
O-POWER-RELAY
O
POWER RELAY control output
75
O-SYSTEM-MUTE
O
System muting signal output
76
O-POWER-LED
O
POWER LED control signal output
77
STREAM-LED6 SOLB
O
Illumination LED control signal output(Not used)
78
STREAM-LED5 SOLA
O
Illumination LED control signal output(Not used)
79
STREAM-LED4 MOTOR
O
Illumination LED control signal output(Not used)
80
STREAM-LED3 MP3-STB
O
Illumination LED control signal output(Not used)
81
STREAM-LED2
O
Illumination LED control signal output(Not used)
82
STREAM-LED1
O
Illumination LED control signal output(Not used)
83
I-LC72121 DI
I
Data input from Tuner
84
O-LC72121 CE
O
Chip select output to Tuner
85
O-LC72121/BU2099FV DO
O
Data input from Tuner and SP Driver
86
O-LC72121/BU2099FV CLK
O
Clock output to Tuner and SP Driver
87
O-BU2099FV LCH
O
LCH output to SP Driver
88
O-BD3401 CLK
O
Clock output to Sound Processor
89
VSS2
–
Ground
90
VDD2
–
Power supply
91
O-BD3401 DATA
O
Data output toSound Processor
92
O-XTCN
O
CD xtcn signal output
93
O-XRES(RESET)
O
CD reset signal output
94
O-XLT(CD-LAT)
O
CD xlt signal output
95
O-CD-DATA
O
CD data output
96
I-SENS
I
CD sens input
97
O-CD-CLK
O
CD clk output
98
O-MP3-DO
O
Clock output to CD Digital Processor(Not used)
47
HCD-RG121
Pin No.
Pin Name
I/O
Description
99
I-MP3-DI
I
Data input from CD Digital Processor(Not used)
100
O-MP3-CLK
O
Clock output to CD Digital Processor(Not used)
48
HCD-RG121
6-1.
MAIN SECTION
SECTION 6
EXPLODED VIEWS
Ref. No.
Part No.
Description
Remarks
Ref. No.
Part No.
Description
Remarks
CD mechanism deck section-1
#1
#1
#2
#1
#1
#1
#1
#1
#1
#1
#1
#1
#1
#1
#1
a
a
#2
3
2
12
1
1
1
1
5
front panel
section
section
Main board section
4
8
9
not
supplied
not
supplied
not
supplied
not
supplied
#2
not
supplied
not
supplied
b
b
10
not
supplied
PT902
1
3-363-099-32 SCREW (CASE 3 TP2)
2
4-245-183-91 CASE (SIDE-L)
3
4-252-196-51 DOOR, CD
4
3-038-018-01 EMBLEM, SONY
5
4-244-849-91 CASE (TOP)
8
1-769-940-11 WIRE (FLAT TYPE) (11 CORE) (UK)
9
1-693-615-11 TUNER (FM/AM) (EXCEPT AEP, UK)
9
1-693-616-11 TUNER (FM/AM) (AEP, UK)
10
1-400-285-11 F-BEAD, E2515 MRT
12
4-245-184-91 CASE (SIDE-R)
0 PT902
X-4956-322-1 SUB TRANS ASSY (EA, MX)
0 PT902
X-4956-293-1 SUB TRANS ASSY (AEP, UK)
0 PT902
X-4956-294-1 TRANS ASSY, SUB (SP, E2, E3, E51, AR, AUS)
#1
7-685-647-79 SCREW +BVTP3X10 TYPE2 IT-3
#2
7-685-646-79 SCREW +BVTP3X8 TYPE2 IT-3
Note:
The components identified by mark 0 or
dotted line with mark 0 are critical for
safety.
Replace only with part number specified.
dotted line with mark 0 are critical for
safety.
Replace only with part number specified.
NOTE:
•
-XX, -X mean standardized parts, so they may
have some differences from the original one.
have some differences from the original one.
•
Items marked “*” are not stocked since they
are seldom required for routine service. Some
delay should be anticipated when ordering these
items.
are seldom required for routine service. Some
delay should be anticipated when ordering these
items.
•
The mechanical parts with no reference num-
ber in the exploded views are not supplied.
ber in the exploded views are not supplied.
•
Abbreviation
AR:
AR:
Argentina model
AUS: Australian Model
E2:
E2:
120 V AC Area in E model
E3:
240 V AC Area in E model
E51: Chilean and Peruvian model
EA:
EA:
Saudi Arabia model
MX: Mexican model
SP:
SP:
Singapore model
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