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7-12. IC PIN FUNCTION DESCRIPTION
• MAIN BOARD IC801 CXP82220-053Q (SYSTEM CONTROLLER)
Pin No. Pin Name I/O Description
1 PLAYSW B I Mechanism playback detect switch (S1002) input terminal “H”: playback
2 70U B I CrO
2 detect switch (S1008) input terminal “H”: CrO2
3 METAL I Metal detect switch (S1007) input terminal “H”: metal
4 SIRCS IN I SIRCS signal input from the remote control receiver (IC901)
5 POWER IN I AC in detect signal input terminal “H”: AC in
6 VOL OUT O Record level control signal output to the CXA1878Q (IC301)
7 A/B SEL I Deck select (A/B) signal input terminal “L”: A deck “H”: B deck Not used (open)
8
CONTROL-A IN
I SIRCS remote control signal input of the CONTROL A1
9
CONTROL-A OUT
O SIRCS remote control signal output of the CONTROL A1
10 FLCLK O Serial data transfer clock signal output to the M35500BGP (IC902)
11 FLDATA IN I Serial data input to the M35500BGP (IC902)
12 FLDATA OUT O Serial data output to the M35500BGP (IC902)
13 CS O Chip select signal output to the M35500BGP (IC902)
14 REC MUTE A O Record muting on/off control signal output terminal “L”: muting on Not used (open)
15 REC/PB O
Recording/playback control signal output to the CXA1878Q (IC301)
“L”: playback, “H”: recording
16 RECCAL 0 O
17 RECCAL 1 O
18 GPCAL 0 O
19 GPCAL 1 O
20 RECCAL 0 O
21 RECCAL 1 O
22 GPCAL 0 O
Equalizer calibration up/down control signal output terminal
“L”: down, “H”: up (high impedance: off) Not used (open)
23 FILTER O Multiplex filter on/off control signal output “H”: multiplex filter on
24 REC MUTE B O Record muting on/off control signal output to the CXA1878Q (IC301) “L”: muting on
25 CAL OFF O
Calibration on/off control signal output to the CXA1878Q (IC301) “H”: calibration on
(TC-RE340 only) TC-KE240: Not used
26 C/B/OFF O
Dolby B and C type selection signal output to the CXA1878Q (IC301)
“L”: Dolby C, center voltage: Dolby B, “H”: NR off
27 REC EQ HN O Recording equalizer select signal output terminal Not used (open)
28 PASS/MUTE/NR O
Audio select signal output to the CXA1878Q (IC301)
“L”: NR on, center voltage: muting, “H”: pass
29 BS/AMS/OFF O
Mode select signal output for AMS/BS amplifier to the CXA1878Q (IC301)
“L”: BS mode, center voltage: AMS mode, “H”: AMS/BS off mode
30 RELAY B O
Recording/playback switching relay (RY341) control signal output terminal
“L”: recording, “H”: playback
31 RELAY A O
Recording/playback switching relay control signal output terminal
“L”: recording, “H”: playback Not used (open)
32 METER L I Signal input for the level meter drive (L-ch) from the CXA1878Q (IC301) (A/D input)
33 METER R I Signal input for the level meter drive (R-ch) from the CXA1878Q (IC301) (A/D input)
34 HALF I
Detection input from the cassette detect switch (S1006)
“L”: no cassette, “H”: cassette in
35 SHUT I Rotation detect signal input of the capstan motor (M1002)
36 KEY2 I
Key input terminal (A/D input) (S911 to S916) m, M, REC z, FADER, ARL, SYNCHRO
keys input
Equalizer calibration up/down control signal output to the CXA1878Q (IC301)
“L”: down, “H”: up (high impedance: off) (TC-RE340 only) TC-KE240: Not used (open)
Recording calibration up/down control signal output to the CXA1878Q (IC301)
“L”: down, “H”: up (high impedance: off) (TC-RE340 only) TC-KE240: Not used (open)
Recording calibration up/down control signal output terminal
“L”: down, “H”: up (high impedance: off) Not used (open)
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TEL 13942296513 QQ 376315150 892498299
TEL 13942296513 QQ 376315150 892498299
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