Hitachi C28W40TN, Service Manual

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Test Point Net Name Function
TP291 PD_A6 DRAM address 6
TP290 PD_A7 DRAM address 7
TP289 PD_A8 DRAM address 8
TP288 /PD_RAS1 NotDRAM row address 1
TP287 /PD_CAS0H Not DRAM colum address high
TP286 /PD_CAS0L Not DRAM colum address low
TP285 PD_D8 DRAM data 8
TP284 PD_D9 DRAM data 9
TP283 PD_D10 DRAM data 10
TP282 PD_D11 DRAM data 11
TP281 PD_D12 DRAM data 12
TP280 PD_D13 DRAM data 13
TP279 PD_D14 DRAM data 14
TP278 PD_D15 DRAM data 15
TP270 PD_D0 DRAM data 0
TP271 PD_D1 DRAM data 1
TP272 PD_D2 DRAM data 2
TP273 PD_D3 DRAM data 3
TP274 PD_D4 DRAM data 4
TP275 PD_D5 DRAM data 5
TP276 PD_D6 DRAM data 6
TP277 PD_D7 DRAM data 7
TP294 PD_A0 DRAM address 0
TP295 PD_A1 DRAM address 1
TP296 PD_A2 DRAM address 2
TP297 PD_A3 DRAM address 3
TP246 /PD_WEO Not DRAM Write enable
TP247 /PD_RAS0 Not DRAM row address 0
TP1074 ZTEST LSI test pin
TP1069 LP2 CPU clock generator low pass filter
TP222 LP2 CPU clock generator low pass filter
TP299 PLLAGNDD PLL Ground
TP298 PLLVDD_P PLL 3V3 supply
TP1153 3V3_MPEG 3V3 MPEG supply voltage
TP1078 OPAMP Opamp reference
TP245 IREF Op-amp input (from cpu)
Sheet 4 Common Interface
TP316 TS/NPES Transport stream select
TP363 1394OUT0 1394 output 0
TP362 1394OUT1 1394 output 1
TP361 1394OUT2 1394 output 2
TP360 1394OUT3 1394 output 3
TP359 1394OUT4 1394 output 4
TP358 1394OUT5 1394 output 5
TP357 1394OUT6 1394 output 6
TP356 1394OUT7 1394 output 7
TP435 /STROBE IEEE1284/IEEE1394 data strobe
TP436 SELECT IEEE1284/IEEE1394 peripheral select
TP437 ERROR IEEE1284/IEEE1394 peripheral error
TP424 TS_CI_DEMUX_0 MPEG Transport 0
TP425 TS_CI_DEMUX_1 MPEG Transport 1
TP426 TS_CI_DEMUX_2 MPEG Transport 2
TP427 TS_CI_DEMUX_3 MPEG Transport 3
TP428 TS_CI_DEMUX_4 MPEG Transport 4
TP429 TS_CI_DEMUX_5 MPEG Transport 5
TP430 TS_CI_DEMUX_6 MPEG Transport 6
TP431 TS_CI_DEMUX_7 MPEG Transport 7
TP432 TS_CI_DEMUX_CLK Transport clock
TP433 TS_CI_DEMUX_VALID Transport valid
TP434 TS_CI_DEMUX_ERR Transport error
TP448 SW_PES_ERR Switch present transport error
TP447 SW_PES_EN Switch present transport enable