Sony WE475 Service Manual - Page 26

Ic Pin Function

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TC-WE475 6-17. IC PIN FUNCTION • IC801 SYSTEM CONTROL (CXP82220-052Q) (MAIN board) Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 to 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 51 52 53 54 to 57 58 59 Pin Name PLAYSW (B) GND METAL (B) SIRCS IN POWER IN VOL OUT A/B SEL CONTROL-A IN CONTROL-A OUT FL CLK FL DATA IN FL DATA OUT CS NC REC /PB NC REC MUTE B NC C/B/OFF REC EQ H/N PASS/MUTE/DOLBY BS/AMS/OFF RELAY (B) NC METER (L) METER (R) HALF (B) SHUT (B) SHUT (A) HALF (A) RESET EXTAL XTAL VSS TX TEX VOL IN DIR MODE IN AVREF AV SS AR LED CD SYNC LED CAP, M2 (B) CAP, M4 (B) CAP, M3 (B) CAP, M1 (B) NC CAP, M2 (A) CAP, M1 (A) I/O Function I Play switch input (DECK B) - Ground I METAL input (DECK B) I Sircs signal input I Power hold input O Volume output I Playback A/B selector input "L" : A, "H" : B I Control A signal input O Control A signal output I FL CLK control input I Display control input O Display control output I Sircs signal input - Not used O Record /playback dolby NR mode selector output "L" : Playback - Not used O Recording mute output (DECK B) - Not used O Dolby selector "H ": C,"Open": B, "L": Dolby off O REC EQ high/normal selector output "L": Dolby O Audio selector "H": Pass , "Open": Mute,"L": Recording O AMS amp selector "H": BS, "Open": AMS, "L": OFF I Relay swich input (DECK B) - Not used I Meter L-CH input I Meter R-CH input I Half swich input (DECK B) I Capstan motor rotation detection input (DECK B) I Capstan motor rotation detection input (DECK A) I Half swich input (DECK A) I System reset input O System clock oscillator output (10 MHz) I System clock oscillator input (10 MHz) - - Ground - I Auto rec level control input I Key input - Connected to power supply - Ground O AUTO LED driver "H": ON O SYNCHRO LED driver "L": ON O O Capstan motor driver (DECK B) O O - Not used O Capstan motor driver (DECK A) O 26 Pin No. 60 61 62 to 66 67 68 69 to 70 71 72 to 87 88 89 90 91 92 93 94 95 96 97 98 99 100 Pin Name CAP, M3 (A) CAP, M4 (A) NC CAP, M H/L PITCH ON/OFF NC LINE MUTE NC VF VDD N.C VSS NC BIAS (B) PITCH CON-SW AMS IN TRG (B) TRG (A) NC PLAYSW (A) 70U I/O O Capstan motor driver (DECK A) O Function - Not used O Capstan motor high/normal selector output "L": ON O Pitch control ON/OFF output - Not used O Line mute ON/OFF control output - Not used - Ground - Power supply (+5V) - Not used - Ground - Not used O Bias ON/OFF output (DECK B) O Pitch control ON/OFF control output "L": ON I AMS amp selector O Trigger control output (DECK B) O Trigger control output (DECK A) - Not used I Play swich input (DECK A) I Ground 26

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26
26
TC-WE475
6-17. IC PIN FUNCTION
•
IC801 SYSTEM CONTROL (CXP82220-052Q) (MAIN board)
Pin No.
Pin Name
I/O
Function
1
PLAYSW (B)
I
Play switch input (DECK B)
2
GND
—
Ground
3
METAL (B)
I
METAL input (DECK B)
4
SIRCS IN
I
Sircs signal input
5
POWER IN
I
Power hold input
6
VOL OUT
O
Volume output
7
A/B SEL
I
Playback A/B selector input
“L” : A, “H” : B
8
CONTROL-A IN
I
Control A signal input
9
CONTROL-A OUT
O
Control A signal output
10
FL CLK
I
FL CLK control input
11
FL DATA IN
I
Display control input
12
FL DATA OUT
O
Display control output
13
CS
I
Sircs signal input
14
NC
—
Not used
15
REC /PB
O
Record /playback dolby NR mode selector output
“L” : Playback
16 to 23
NC
—
Not used
24
REC MUTE B
O
Recording mute output
(DECK B)
25
NC
—
Not used
26
C/B/OFF
O
Dolby selector
“H ”: C,“Open”: B, “L”: Dolby off
27
REC EQ H/N
O
REC EQ high/normal selector output “L”: Dolby
28
PASS/MUTE/DOLBY
O
Audio selector
“H”: Pass , “Open”: Mute,“L”: Recording
29
BS/AMS/OFF
O
AMS amp selector
“H”: BS, “Open”: AMS, “L”: OFF
30
RELAY (B)
I
Relay swich input (DECK B)
31
NC
—
Not used
32
METER (L)
I
Meter L-CH input
33
METER (R)
I
Meter R-CH input
34
HALF (B)
I
Half swich input (DECK B)
35
SHUT (B)
I
Capstan motor rotation detection input (DECK B)
36
SHUT (A)
I
Capstan motor rotation detection input (DECK A)
37
HALF (A)
I
Half swich input (DECK A)
38
RESET
I
System reset input
39
EXTAL
O
System clock oscillator output (10 MHz)
40
XTAL
I
System clock oscillator input (10 MHz)
41
VSS
—
42
TX
—
Ground
43
TEX
—
44
VOL IN
I
Auto rec level control input
45
DIR MODE IN
I
Key input
46
AVREF
—
Connected to power supply
47
AV SS
—
Ground
48
AR LED
O
AUTO LED driver
“H”: ON
49
CD SYNC LED
O
SYNCHRO LED driver
“L”: ON
50
CAP, M2 (B)
O
51
CAP, M4 (B)
O
52
CAP, M3 (B)
O
53
CAP, M1 (B)
O
54 to 57
NC
—
Not used
58
CAP, M2 (A)
O
59
CAP, M1 (A)
O
Capstan motor driver (DECK B)
Capstan motor driver (DECK A)
Pin No.
Pin Name
I/O
Function
60
CAP, M3 (A)
O
61
CAP, M4 (A)
O
62 to 66
NC
—
Not used
67
CAP, M H/L
O
Capstan motor high/normal selector output
“L”: ON
68
PITCH ON/OFF
O
Pitch control ON/OFF output
69 to 70
NC
—
Not used
71
LINE MUTE
O
Line mute ON/OFF control output
72 to 87
NC
—
Not used
88
VF
—
Ground
89
VDD
—
Power supply (+5V)
90
N.C
—
Not used
91
VSS
—
Ground
92
NC
—
Not used
93
BIAS (B)
O
Bias ON/OFF output (DECK B)
94
PITCH CON-SW
O
Pitch control ON/OFF control output
“L”: ON
95
AMS IN
I
AMS amp selector
96
TRG (B)
O
Trigger control output (DECK B)
97
TRG (A)
O
Trigger control output (DECK A)
98
NC
—
Not used
99
PLAYSW (A)
I
Play swich input (DECK A)
100
70U
I
Ground
Capstan motor driver (DECK A)