66
HCD-BC150/BC250
• MAIN BOARD IC509 uPD703261YGF-S07-JBT-A (SYSTEM CONTROLLER)
Pin No. Pin Name I/O Description
1 IP SEL O Interless/Progressive
2 MTRST O Mediatech DVD uCOM reset
3AVREF0 — Analog reference voltage for A/D converter
4AVSS — Analog ground
5V CONTROL O Voltage control for amp
6AC_ON/OFF O Control Relay for power tracnsformer
7AVREF1 — Analog reference voltage for D/A converter
8DVD XIFCS I Media tech chip select
9 XIFBUSY O Media tech busy
10 FLASH0 I Flash programing mode (pull down)
11 VDD — Power supply
12 REGC — Regulator control-connect 4.7uF
13 VSS — Ground
14 X1 I Crystal input for main cock
15 X2 — Crystal output for main clock
16 RESET I System reset signal input
17 XT1 I Crystal for sub clock
18 XT2 — Crystal for sub clock
19 DVD POWER O DVD power on/off
20 KEY INT I Wakeup from ECO mode by key input
21 RM_INT I Wakeup from ECO mode by sircs input
22 (Can’t USE) I Can’t Use Port
23 AC_CUT I Detect AC-CUT (primary power off)
24 DVD SOD I Media tech
25 DVD SIO O Media tech
26 DVD SCO I Media tech clock ∗ input from DVD micon
27 FL_D_OUT/LED_DATA O FL driver (PT6315) / LED Driver data out
28 LED LAT O LED driver latch
29 FL_CLK/LED_CLK O FL driver (PT6315) / LED driver clock
30 FL_CS/STB O FL driver (PT6315) chip select
31 LED_RESET O LED driver reset
32 BACK LIGHT O Back light output
33 STBY_LED O Standby LED control
34 SIRCS_IN I Sircs input
35 EVSS — Ground for port
36 EVDD — Power supply for Port
37 USE NO I/O IIC data (Not used)
38 USE NO I/O IIC clock (Not used)
39 DRIVE_RST(EN) O Driver signal reset
40 DRIVE_OCP(DIAG) I Digital amp (power driver) diag
41 OVERFLOW1 I Over flow status1 of amp
42 OVERFLOW2 I Over flow status2 of amp
43 DAMP SCDT O Digital amp (CXD9788) data output
44 DAMP SHIFT O Digital amp (CXD9788) data output
45 DAMP LATCH1 O Digital amp (CXD9788) chip select1 signal output
46 DAMP LATCH2 O Digital amp (CXD9788) chip select2 signal output
47 DAMP LATCH3 O Digital amp (CXD9788) chip select3 signal output
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