Digital Board Ic502 Cxp87532-012Q (Mechanism Microcomputer) - Sony PCM-R500 Service Manual

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• DIGITAL BOARD IC502 CXP87532-012Q (Mechanism Microcomputer)

Pin No. Pin Name
1 FPM-KI
2 CAP-RVS
3 BPM-ON
4 BPM-KI
5 DRM-ON
6 —
7 —
8 —
9 —
10 —
11 —
12 —
13 —
14 —
15 LM-EJCT
16 LM-LOAD
17 CM-OUT
18 CM-IN
19 XROM-CK
20 XROM-DT
21 —
TE
L 13942296513
22 —
23 H-FIX
24 H-FIX
25 CAS-IN
26 REC-EN
27 CAS-LCK
28 CAS-OUT
29 UNLD-SW
30 LOAD-SW
31 —
32 —
33 —
34 —
35 H-FIX
36 H-FIX
37 H-FIX
38 H-FIX
39 MP
40 XRST
41 VSS
42 XTAL
43 EXTAL
44 XMECH-BSY
45 —
46 TLED-ON
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47 SLED-ON
48 XSBSY
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I/O
O FWD plunger kick control output
O Capstan rotation direction control output. "H" for FWD and "L" for REV.
O Brake plunger ON control output
O Brake plunger kick control output
O Drum motor ON control output
O
O
O
O
O Not used.
O
O
O
O
O Loading motor rotation direction control output (Eject direction)
O Loading motor rotation direction control output (Loading direction)
O Cassette compartment motor rotation direction control output (OUT direction)
O Cassette compartment motor rotation direction control output (IN direction)
O EEPROM serial clock output
I/O EEPROM serial data input/output
O
Not used.
O
I
Not used. (Fixed at "H" level.)
I
I Cassette IN switch input
I REC enable switch input
I Cassette compartment lock switch input
I Cassette compartment OUT switch input
I UNLOAD switch input. "H" in UNLOAD position.
I LOAD switch. "H" in STOP position.
O
O
Not used.
O
O
I
I
Not used. (Fixed at "H" level.)
I
I
— Connect to Ground.
I Reset input. "L" for reset.
— Ground
O Crystal oscillator output pin (9.408MHz). (Not used in this set.)
I Crystal oscillator input pin (9.408MHz)
O Mechanism microcomputer BUSY signal input
O Not used.
O T-END sensor ON output. "H" for ON.
O S-END sensor ON output. "H" for ON.
I SUB SYNC input from main microcomputer (IC501).
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8
Function
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3 6 7 1 3 1 5
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9 4 2 8
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9 9
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