Diagrams; 6-1. Ic Pin Function Description - Sony XR-C340 Service Manual

6-1. IC PIN FUNCTION DESCRIPTION

• IC501 µD17708GC-545-3B9 (MASTER CONTROLLER)
Pin No. Pin Name
1 ILLIN
2, 3 POS3, 2
4, 5 POS0, 1
6 TAPEON
7 CM_ON
8 LM_LOD
9 LM_EJ
10 TUNON
11 FM_ON
12 PW_ON
13 MUT
14 VOLCE
15 VOLCLO
16 VOLSO
17 AMPON
18 AMPMUT
19 DX_LO
20 AM_MONO
21 GND
22 DSTSEL
23 D-BASS
24, 25 KEYIN1, KEYIN0
26 RC_IN0
27 VSM
28 AMIFIN
29 FMIFIN
30 VDD2
31 FM_OSC
32 AM_OSC
33 GND
34 N.C
35 EOI
36 TEST0
37 AM_STIN
38 SEKOUT
39 MW_SW
40 BEEP
41 KEYACK
42 BU_IN
43 MTLSEL
SECTION 6

DIAGRAMS

I/O
I ILLIN signal detection pin
I Tape position detection pin
O Tape power supply control pin
O Capstan motor control pin
O Loading motor control pin (loading direction)
O Loading motor control pin (eject direction)
O Tuner power supply control pin
O FM power supply control pin
O System power supply control pin
O System muting control pin At muting: "H"
O Chip enable output pin to electrical volume
O Clock output pin to electrical volume
O Data output pin to electrical volume
O Power amp power supply control pin
O Power amp muting control pin At muting: "L"
O DX/local selection control pin
O AM forced monaural signal output pin
– GND
I Destination setting pin (A/D input)
I D-BASS switch input pin (A/D input)
I Key input pin (A/D input)
I Rotary remote commander input pin (A/D input)
I FM/AM signal meter voltage detection pin (A/D input)
I AM (MW, SW) IF input pin
I FM IF input pin
– Power supply
I FM OSC signal input pin
I AM OSC signal input pin
– GND
– Not used
O Main charge-pump output pin
I Test pin
I AM stereo signal input pin
O SEEK control signal output pin
O MW/SW power supply select pin
O Beep sound output pin
O Key acknowledge signal input pin
I Back up power supply detection pin
METAL control input/output pin
At initial mode: auto/manual selection input of METAL function "L": manual
I/O
At manual mode: METAL on/off output "H": on
At auto mode: input at %ª MTLIN
Function
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