Diagrams; Ic Pin Function Description - Sony HCD-V808 Service Manual

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6-1. IC PIN FUNCTION DESCRIPTION

• MAIN BOARD IC301 µPD780016YGF-015-3BA (MASTER CONTROLLER)
Pin No. Pin Name
1 TA-MUTE
2 DBFB-H/L
3 427-LAT
4 K-CON-LAT
5 K-CON-ON
6 F-RELAY
7 R-RELAY
8 PL-RELAY
9 TEST
10 X2
11 X1
12 VDD
13 XT2
14 XT1
15 RESET
16 (INT/IN)
17 (INT/IN/OUT)
18 SCOR
19 SOFT-TEST
TE
L 13942296513
20 AC-CUT
21 RDS-INT
22 RDS-DATA
23 VDD
24 AVDD
25 ADJ
26 A-SHUT
27 B-SHUT
28 B-HALF
29 CLK-CHECK
30 SPEC-IN
31 ADJ2
32 DEMO-MODE
33 AVSS
34 SQ-DATA-IN
35 —
36 D.OUT ON/OFF
37 SW-ON/OFF
38 FUNC1
39 FUNC2
www 40 VSS
41 VOL-LAT
42 PL-LAT
.
43 COM-DIN
44 COM-DOUT
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SECTION 6

DIAGRAMS

I/O
O
Line mute control signal output terminal "L": mute on
O DBFB normal/high selection signal output terminal "L": DBFB high, "H": DBFB low
O
Serial data latch pulse output to the electrical volume (IC201)
O
Serial data latch pulse output to the key control (IC1401)
O
On/off selection signal output of the key control circuit "L": on
O Relay drive signal output for the main speaker (front speaker) "H": on
O
Relay drive signal output for the surround speaker "H": on
O
Relay drive signal output for the surround speaker "H": on
I
Connected to ground
O Main system clock output terminal (5 MHz)
I
Main system clock input terminal (5 MHz)
—
Power supply terminal (+5V)
O
Sub system clock output terminal (32.768 kHz)
I Sub system clock input terminal (32.768 kHz)
System reset signal input from the reset signal generator (IC302)
I
hundreds msec. after the power supply rises, "L" is input, then it changes to "H"
I
Connected to ground
I
Connected to ground
O
Subcode sync (S0+S1) detection signal input terminal Not used (fixed at "L")
O Output terminal for the software test (open)
I
AC off detection signal input from the reset signal generator (IC302)
I
Serial data reading clock signal input for the radio data system Not used (fixed at "L")
I
Serial data input for the radio data system Not used (open)
— Power supply terminal (+5V)
—
Power supply terminal (+5V) (for A/D conversion)
I
Setting terminal for the test Normally: "H"
I
Shut off detection signal input from the deck-A reel pulse detector (Q1001)
I
Shut off detection signal input from the deck-B reel pulse detector (Q1002)
I
Detection input from the deck-B half detect switch (S1007)
I
Not used (fixed at "L")
I Setting terminal for the version Fixed at "L"
I
Setting terminal for the test Normally: "L"
I
Setting terminal for the demonstration H/L Fixed at "L"
—
Ground terminal (for A/D conversion)
I Sub-code Q data input terminal Not used (fixed at "L")
—
Not used (open)
O
Power on/off selection signal output for the CD digital out optical "H": power on
O
Not used (open)
I Setting terminal for the function 1 Fixed at "L"
I
Setting terminal for the function 2 Fixed at "L"
—
Ground terminal
O
Serial data latch pulse output terminal Not used (open)
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O Serial data latch pulse output terminal Not used (open)
i
I
Serial data input terminal Not used (fixed at "L")
Serial data output to the electrical volume (IC201), DJ effect controller (IC401), and key
O
control (IC1401)
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2 9
8
Function
Q Q
3 6 7 1 3 1 5
co
.
9 4 2 8
"L": reset For several
0 5 8 2 9 9 4 2 8
m
9 9
9 9