Read Sony MCE-SV7 / MHC-SV7AV Service Manual online
40
MCE-SV7
Pin No.
Pin Name
I/O
Description
50
T-SENS3
I
Detection input from the disc tray 3 height sensor (IC733)
“H”: disc tray 3 position is chucking position
“H”: disc tray 3 position is chucking position
51
—
—
Not used (fixed at “H”)
52
DISC-SENS
I
Detection input from the disc in detect sensor (IC751)
53
B-TRIG
O
Deck-B trigger plunger drive signal output to the tape deck unit (TC-S3)
“H”: trigger plunger on
“H”: trigger plunger on
54
ECO CHECK
—
Not used (fixed at “H”)
55
A-TRIG
O
Deck-A trigger plunger drive signal output to the tape deck unit (TC-S3)
“H”: trigger plunger on
“H”: trigger plunger on
56 to 58
—
—
Not used (open)
59
R/PB/PASS
O
Recording/playback/pass selection signal output to the tape deck unit (TC-S3)
“L”: recording, center voltage: playback, “H”: pass
“L”: recording, center voltage: playback, “H”: pass
60, 61
—
—
Not used (open)
62
VCC
—
Power supply terminal (+5V)
63
SOFT-TEST
O
For software check terminal (open)
64
VSS
—
Ground terminal
65 to 68
LED_DISC1
O
LED drive signal output of the 1 indicator (D705) “L”: LED on
69 to 72
LED_DISC2
O
LED drive signal output of the 2 indicator (D704) “L”: LED on
73 to 76
LED_DISC3
O
LED drive signal output of the 3 indicator (D703) “L”: LED on
77 to 80
LED_PLAY
O
LED drive signal output of the N indicator (D702) “L”: LED on
81 to 83
LED_PAUSE
O
LED drive signal output of the X indicator (D701) “L”: LED on
84
EXP-IN DATA
I
Serial data input from the tape deck unit (TC-S3)
85
EXP-OUT DATA
O
Serial data output to the tape deck unit (TC-S3)
86
EXP-LAT
O
Serial data latch pulse signal output to the tape deck unit (TC-S3)
87
EXP-CLK
O
Serial data transfer clock signal output to the tape deck unit (TC-S3)
88
LED_PAUSE
O
LED drive signal output of the X indicator (D701) “L”: LED on
89
A-SHUT
I
Shut off (desk-A) detection signal input from the tape deck unit (TC-S3)
90
B-SHUT
I
Shut off (desk-B) detection signal input from the tape deck unit (TC-S3)
91
B-HALF
I
Detection input from the deck-B cassette detect switch of the tape deck unit (TC-S3)
“L”: cassette in
“L”: cassette in
92
MODEL-IN
I
Model destination setting terminal
93
KEY3
—
Not used (open)
94
KEY2 (TC)
I
Key input from the tape deck unit (TC-S3) (A/D input)
95
KEY1 (CD)
I
Key input terminal (A/D input) (S711 to S720) m, M , ., >, x, X, N, RETURN,
PREV, NEXT keys input
PREV, NEXT keys input
96
AVSS
—
Ground terminal (for A/D conversion)
97
KEY1 (CD)
I
Key input terminal (A/D input) (S701 to S708) DISC 3, DISC 2, DISC 1, Z (DISC1), Z
(DISC2), Z (DISC3), REPEAT, PLAY MODE keys input
(DISC2), Z (DISC3), REPEAT, PLAY MODE keys input
98
VREF
I
Reference voltage (+5V) input terminal (for A/D converter)
99
AVCC
—
Power supply terminal (+5V) (for A/D conversion)
100
—
—
Not used (open)
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