Service manual

31
DV-L70S
DV-L70BL
DV-L70W
Pin No. Pin name Type I/O Function
148 DVDREQ O O DVD-DSP data request output (polarity programmable)
146 DVDVALID I I DVD-DSP data valid input (polarity programmable)
144 DVDSOS I I DVD-DSP data selector start input (polarity programmable)
*1 DVDDAT [7:0] I I DVD-DSP data input bus
147 DVDSTRB I I DVD-DSP data bit strobe (clock) input. Polarity programmable.
143 DVDERR I I DVD-DSP error input. Polarity programmable.
*2 RAMDAT [15:0] 3-S I/O SDRAM bidirectional data bus
*3 RAMADD [11:0] O O SDRAM address bus output
56 RAMRAS# O O SDRAM row selection (active low) output
59 RAMCAS# O O SDRAM column selection (active low) output
57 PCLK O O SDRAM clock output (similar to the inner process clock)
61 RAMDQM O O SDRAM data masking (active high) output
54 RAMCS0# O O SDRAM chip select (active low) output. For lower order of 2Mbyte device.
55 RAMCS1# O O SDRAM chip select (active low) output. For higher order of 2Mbyte device.
60 RAMWE# O O SDRAM write enable (active low) output.
127 SCNENBL I I Test pin. Usually connected to GNG.
83 TESTMODE I I Test pin. Usually connected to VDD.
139 ICEMODE I I Test pin. Usually connected to VDD.
*4 GND ground Digital GND
*5 VDD power Digital power supply (3.3V)
134 PLLGND (GNDA) ground GND of inner PLL circuit
138 PLLVDD (VDDA) power Power supply of inner PLL circuit (3.3V)
DVD-DSP interface (13-pin)
SDRAM interface (35-pin)
TEST signal (3-pin)
Power signal (35-pin)
*1 158~156, 154~151, 149
*2 79, 77, 75, 72, 70, 67, 65, 62, 64, 66, 69, 71, 74, 76, 78, 82
*3 52, 50, 51, 49, 46, 44, 42, 38, 39, 43, 45, 47
*4 1, 13, 23, 40, 41, 53, 68, 80, 81, 108, 120, 121, 125, 131, 145, 160
*5 8, 18, 28, 33, 48, 58, 63, 73, 103, 113, 133, 140, 150, 155