Sony XR-C7200R Service Manual page 23

• MAIN BOARD IC501 µPD78058GC-462-3B9 (SYSTEM CONTROLLER)
Pin No. Pin Name
1 RC-IN0
2 ILL-IN
3 NIL
4 AVSS
5 LCDANG
6 NIL
7 AVREF1
8 RE IN0
9 RE IN1
10 SUB-F
11 COLSEL
12 LCDSO
13 LCDCKO
14 LCDCE
15 LCDINH
16 UNISI
17 UNISO
18 UNICKI
19 UNICKO
20 BUSON
21 SYSRST
22 AMPON
23, 24 NCO
25 PW-ON
26 ILL-ON
27 COLOR
28 NCO
29 to 32 NIL
33 GND
34, 35 NIL
36 to 39 NCO
40 AD-ON
41 NCO
42 PW-SEL
43 RC-IN1
44 TEST
45 EQ-SEL
46 BEEP
I/O
I Rotary remote commander shift key A/D input terminal
I Dimmer detection signal input Dimmer is present at input of "L"
I Not used (fixed at "L")
— Ground terminal (for A/D converter)
O Output signal for the LCD view angle adjustment
I Not used (fixed at "L")
I Reference voltage (+5V) input terminal (for D/A converter)
I Rotary encoder (RE701) input terminal
I Rotary encoder (RE701) input terminal
O Sub-woofer control signal output terminal Not used (pull down)
Input terminal to set whether the illumination color change function is present or not
I
"L": illumination color change function is present (fixed at "L" in this set)
O Serial data output to the liquid crystal display driver (IC701)
O Serial data transfer clock signal output to the liquid crystal display driver (IC701)
O Chip enable output to the liquid crystal display driver (IC701)
Blank indicate control signal output to the liquid crystal display driver (IC701)
O
"L": no display
I Serial data input from the SONY bus interface (IC571)
O Serial data output to the SONY bus interface (IC571)
I Serial data reading clock signal input terminal (for SONY bus)
Serial data transfer clock signal output to the tuner/tape deck system controller (IC101) and
O
SONY bus interface (IC571)
Bus on/off control signal output to the tuner/tape deck system controller (IC101) and SONY bus
O
interface (IC571) "L": bus on
Reset signal output to the tuner/tape deck system controller (IC101) and SONY bus interface
O
(IC571) "L": reset
O Standby control signal output to the power amplifier (IC701) "L": standby
O Not used (open)
O Main system power supply on/off control signal output to the BA3918 (IC601) "H": power on
Power supply on/off control signal output terminal at the illumination and liquid crystal display
driver (IC701) "H": power on
O
At power select switch (S501) on mode: "H" output at the accessory on
At power select switch (S501) off mode: "H" output at the power on
O Illumination color selection signal output "H": amber, "L": green
O Not used (open)
I Not used (fixed at "L")
— Ground terminal
I Not used (fixed at "L")
O Not used (open)
O Power supply on/off control signal output for the A/D converter "L": power on
O Not used (open)
Power select switch (S501) input terminal
I
"L": position A or off (halt mode), "H": position B or on (operation mode)
I Rotary remote commander shift key A/D input terminal
I Setting terminal for the test mode "L": test mode (normally fixed at "H")
I Equalizer selection input terminal (fixed at "H")
O Beep sound drive signal output terminal
Function
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