Sony STR-NX3 - Exploded Views of Unit Sections

36
Pin No. Pin Name I/O Description
74 CAPM-CNT2 O Capstan motor (M1) drive signal output terminal “H” active *3
75 CAPM-CNT1 O Capstan motor (M1) drive signal output terminal “H” active *3
76 CAP-M-H/L O
High/normal speed selection signal output of the capstan motor (M1)
“L”: normal speed, “H”: high speed
77 AMS-IN I
Whether a music is present or not from the HA12215F (IC301) is detected an automatic music
sensor “L”: music is present, “H”: music is not present
78 TC-MUTE O
Line muting on/off selection signal output to the HA12215F (IC301)
“L”: muting off, “H”: muting on
79 REC/PB/PASS O
Recording/playback/pass selection signal output to the HA12215F (IC301)
“L”: recording mode, “H”: pass, “Hi-z”: playback mode
80 DOLBY NR O
Dolby NR on/off selection signal output to the HA12215F (IC301)
“L”: dolby off, “H”: dolby on
81 REC-MUTE O
Recording muting on/off selection signal output to the HA12215F (IC301)
“L”: muting on, “H”: muting off
82 BIAS O
Recording bias on/off selection signal output to the HA12215F (IC301)
“L”: bias off, “H”: bias on
83 EQ-H/N O
Normal/high speed selection signal output to the HA12215F (IC301)
“L”: normal speed, “H”: high speed
84 PB-A/B O Deck-A/B selection signal output to the HA12215F (IC301) “L”: deck-A, “H”: deck-B
85 ALC O Automatic limiter control signal output to the HA12215F (IC301) “L”: limiter on
86 B-PLAY-SW I Detection input from the deck-B play detect switch (S1002) “H”: deck-B play
87 A-PLAY-SW I Detection input from the deck-A play detect switch (S1001) “H”: deck-A play
88 A-HALF I
Detection input from the deck-A cassette detect switch (S1003)
“L”: cassette in, “H”: no cassette
89 B-HALF I Detection input from the deck-B half detect switch (S1006)
90 B-SHUT I Shut off detection signal input from the deck-B side reel pulse detector (IC1002)
91 A-SHUT I Shut off detection signal input from the deck-A side reel pulse detector (IC1001)
92 DISC-SENS I
Detection input from the disc in detect sensor (D704 and Q703) on the CD mechanism block
“H”: disc detected
93 CNT-SW I
Detection input from the count detect switch (S706) on the CD mechanism block
“L”: when elevator up/down each sub tray stock position
94 MODEL-IN I Destination setting terminal
95 KEY1 I
Key input terminal (A/D input)
S211 to S223 (G/S/s (CD), DISC 1/2/3/4/5, A (DISC 5/4/3/2/1)) keys input
96 AVSS — Ground terminal (for A/D conversion)
97 KEY0 I
Key input terminal (A/D input)
S201 to S206, S224 to S228 (s/G/g (DECK B), s/G/g (DECK A), HI DUB, CD SYNC,
REC PAUSE/START, DIRECTION, DOLBY NR) keys input
98 VREF I Reference voltage (+5V) input terminal (for A/D conversion)
99 AVCC — Power supply terminal (+5V) (for A/D conversion)
100 NC I Not used (fixed at “L”)
*3 Capstan motor (M1) control
Stop
Forward
Direction
Reverse
Direction
Brake
CAPM-CNT2 (pin uf )
“L” “H” “L” “H”
CAPM-CNT1(pin ug )
“L” “L” “H” “H”
Terminal
Mod
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