Sony XES-Z50, Service Manual

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MAIN BOARD IC802 HD6413002F16 (DISPLAY CONTROLLER)
Pin No. Pin Name I/O Function
1 VDD — Power supply terminal (+5V)
2 SIRCS I Sircs signal input from the remote control receiver in display unit
3 SIRCS I Sircs signal input from the remote control receiver in display unit
4 DSPL-RST O
Reset signal output to the display controller (IC901) “L”: reset
At the power supply, “L” is output to reset the display controller
5 DSPL-ON O
Output of power on/off control signal for the display circuit power supply “H”: power on
Besides power on/off control, the display data and reset signal transmission to the display
controller (IC901) is controlled at the output of “H”
6 TX-SEL O Not used (open)
7 NCO O Not used (open)
8 CS-CTL O Not used (open)
9 DOWN LOAD I “H” is input when external flash memory data are rewritten Normally “L”
10 NIH I Reset signal output to the external RAM device Not used (fixed at “H”)
11 VSS — Ground terminal
12 LCD-TX O Transmit data output to the display controller (IC901)
13 UNISO O Serial data output to the bus interface (IC503) (for SONY bus)
14 LCD-RX I Receive data input from the display controller (IC901)
15 UNISI I Serial data input from the bus interface (IC503) (for SONY bus)
16 NCO O Not used (open)
17 UNICKI I Serial data transfer clock signal input from the system controller (IC501)
18 D0 I/O
19 D1 I/O
20 D2 I/O
21 D3 I/O
22 VSS — Ground terminal
23 D4 I/O
24 D5 I/O
25 D6 I/O
26 D7 I/O
27 D8 I/O
28 D9 I/O
29 D10 I/O
30 D11 I/O
31 D12 I/O
32 D13 I/O
33 D14 I/O
34 D15 I/O
35 VDD —
Power supply terminal (+5V)
36 A0 O
Address signal output terminal Not used
37 A1 O
38 A2 O
39 A3 O
40 A4 O
Address signal output to the flash memory (IC804) and S-RAM (IC805)
41 A5 O
42 A6 O
43 A7 O
Two-way data bus with the flash memory (IC804) and S-RAM (IC805)
Two-way data bus with the flash memory (IC804) and S-RAM (IC805)