Read Sony HCD-RG221 / MHC-RG221 Service Manual online
45
HCD-RG221
• IC601 LC876996A-52S4-E (SYSTEM CONTROLLER) (PANEL BOARD)
Pin No
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
39
40
41
42
43
44
45
46
47
48
49
50
I/O
O
O
I
O
I
O
I
I
I
I
I
I
O
—
I
O
—
I
I
I
I
I
I
I
I
I
I
I
I
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
O
—
O
O
O
O
Pin Name
O-MP3 CS
O-MP3 LP MOTER
I-MP3 ACK SOL-B
O-MP3 REQ SOL-A
I-SCOR
O-MP3 RESET
I-BU1924 DATA
I-BU1924 CLK
I-VOLUME-IN1
I-VOLUME-IN2
RESET
I-XT1
I-XT2
VSS1
CF1
CF2
VDD1
I-PROTECT
WFR/HP/MIC-IN
I-CD ENCODER
I-CD OPEN/CLOSE
I-TAPE A START
I-TAPE B START
I-STREAM/VACS
I-KEY 3
I-KEY 2
I-KEY 1
I-SIRDS-IN
I-AC CUT
G13
G12
G11
G10
G9
G8
G7
G6
G5
G4
G3
G2
G1
S1
S2
S3
VDD3
S4
S5
S6
S7/METER-SW1
Description
CS output to CD Digital Processor(Not used)
Motor signal output
Motor signal input
Motor signal output
CD Scor input
RESET output to CD Digital Processor
Data input(Not used)
Clock input(Not used)
Volume signal input from the encoder
Volume signal input from the encoder
Reset input
Connection for input a crystal resonator
Connection for input a crystal resonator
Ground
Connection for input a ceramic resonator
Connection for input a ceramic resonator
Power supply
Power amplifier circuit protection signal input
SubWoofer or Headphone detection signal input
Signal input from the CD encoder
CD tray open switch signal input
TAPE A switches signal input
TAPE B switches signal input
Stream/Vacs signal input
Function key input
Function key input
Function key input
Data input from the remote contorol receiver
Power down signal input
FL tube grid signal output
FL tube grid signal output
FL tube grid signal output
FL tube grid signal output
FL tube grid signal output
FL tube grid signal output
FL tube grid signal output
FL tube grid signal output
FL tube grid signal output
FL tube grid signal output
FL tube grid signal output
FL tube grid signal output
FL tube grid signal output
FL tube segment signal output
FL tube segment signal output
FL tube segment signal output
Power supply
FL tube segment signal output
FL tube segment signal output
FL tube segment signal output
FL tube segment signal output
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