Ic Pin Function Description; Tel 13942296513 - Sony xr-c6200 Service Manual

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IC PIN FUNCTION DESCRIPTION

• MAIN BOARD IC501 MN101C12GTB1 (SYSTEM CONTROLLER)
Pin No. Pin Name
1 AVREF–
2
VSM
3 KEYIN1
4 KEYIN0
5 D-BASS IN
6 DSTSEL
7 FUNC-SEL
8 NCO
9 RC-IN0
10 AVREF+
11 VDD
12 OSC OUT
13 OSC IN
14 GND
TE
L 13942296513
15 XT IN
16 XT OUT
17
GND
18 RC-IN1
19 SYSRST
20 BUS-ON
21 UNISO
22 UNISI
23 UNICKO
24 UNICKI
25 NCO
26 KEYACK
27 NOSESW
28 BU-IN
29
SIRCS
30
TEL-ATT
31 TEST-IN
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32 RAMBU
33 RESET
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34 VOL-MUT
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I/O
I Reference voltage (0V) input terminal (for A/D converter)
FM and AM signal meter voltage detection input from the FM/AM tuner unit (TU1)
I
(A/D input)
Key input terminal (A/D input)
(LSW921 to LSW923, LSW925, LSW926, LSW928 to LSW933)
I
6, PRESET DISC –/+, DSPL, LIST, 6, 5 ENTER, 4 n, 3 PLAY MODE, 2 SET UP, 1 N
keys input
Key input terminal (A/D input) (LSW901 to LSW903, S901, LSW905, LSW906)
OFF, SOURCE, MODE *, SEEK/AMS = 0 – + ) +, SOUND, SHIFT keys
I
input
I D-BASS switch (S981) input terminal (A/D input)
Destination setting terminal Frequency select switch (S502) input terminal
I
("L": MW 9 kHz/FM 50 kHz step, "H": MW 10 kHz/FM 200 kHz step)
I
Setting terminal for the function select (fixed at "L" in this set)
O Not used (open)
I Rotary remote commander key input terminal (A/D input)
I
Reference voltage (+5V) input terminal (for A/D converter)
—
Power supply terminal (+5V)
O Main system clock output terminal (18.432 MHz)
I Main system clock input terminal (18.432 MHz)
—
Ground terminal
I
Sub system clock input terminal (32.768 kHz)
O Sub system clock output terminal (32.768 kHz)
—
Ground terminal
I Rotary remote commander shift key input terminal "L": shift
O
Reset signal output to the SONY bus interface (IC581) "L": reset
O Bus on/off control signal output to the SONY bus interface (IC581) "L": bus on
O Serial data output to the SONY bus interface (IC581)
I Serial data input from the SONY bus interface (IC581)
O Serial data transfer clock signal output to the SONY bus interface (IC581)
I
Serial data reading clock signal input for the SONY bus interface Not used (open)
O Not used (open)
Input of acknowledge signal for the key entry Acknowledge signal is input to accept function
I
and eject keys in the power off status On at input of "H"
Front panel block remove/attach detection signal input terminal
I
"L": front panel is attached
Battery detect signal input from the SONY bus interface (IC581) and battery detect circuit
I
"L" is input at low voltage
I
Sircs remote control signal input from the remote control receiver (IC951)
I Telephone muting signal input terminal At input of "H", the signal is attenuated by –20 dB
I Setting terminal for the test mode "L": test mode, Normally: fixed at "H"
Internal RAM reset detection signal input from the XC61BN3312MR (IC552)
I
Input terminal to check that RAM data are not destroyed due to low voltage
This checking is made within 100 msec after reset
x ao
y
System reset signal input from the reset signal generator (IC551) and reset switch (S551)
I
i
"L": reset "L" is input for several 100 msec after power on, then it changes to "H"
Muting control signal output to the electrical volume (IC331)
O
Volume minimum: "∞" output ("H" active)
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Function
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1 5 0 5 8 2 9 9 4
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2 8 9 9