Dell E190Sf Service Manual
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Contents
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Service Manual148. Key Parts Pin Assignments8.1 U401 (gm2621-LF) I/O Legend: P=Power, G=Ground, O=Output, I=Input, A=AnalogPin Symbol I/O Description1 AVSS_BIAS G Analog ground for LVDS PLL and Bandgap2 VDD_OUT_33 P Digital 3.3V supply for LVDS output3 RESERVED O Reserved; Do not connect4 RESERVED O Reserved; Do not connect5 RESERVED O Reserved; Do not connect6 RESERVED O Reserved; Do not connect7 E_CH3P_LV O LVDS signal of even channel 3(+)8 E_CH3N_LV O LVDS signal of even channel 3(-)9 E_CLKP_LV O LVDS signal of even channel clock (+)10 E_CLKN_LV O LVDS signal of even channel clock (-)11 E_CH2P_LV O LVDS signal of even channel 2(+)12 E_CH2N_LV O LVDS signal of even channel 2(-)13 E_CH1P_LV O LVDS signal of even channel 1(+)14 E_CH1N_LV O LVDS signal of even channel 1(-)15 E_CH0P_LV O LVDS signal of even channel 0(-)16 E_CH0N_LV O LVDS signal of even channel 0(-)17 CVDD_18 P Core VDD connect to digital 1.8V18 CRVSS O Chip digital ground19 RESERVED O Reserved; Do not connect20 RESERVED O Reserved; Do not connect21 RESERVED O Reserved; Do not connect22 RESERVED O Reserved; Do not connect23 RESERVED O Reserved; Do not connect24 RESERVED O Reserved; Do not connect25 Vdd_out_33 P Digital 3.3V supply for LVDS output26 VSS_OUT G Digital ground for LVDS output27 RESERVED O Reserved; Do not connect28 RESERVED O Reserved; Do not connect29 RESERVED O Reserved; Do not connect30 RESERVED O Reserved; Do not connect31 O_CH3P_LV O LVDS odd channel 3 positive. Reserved for gm5611 and gm262132 O_CH3N_LV O LVDS odd channel 3 negative. Reserved for gm5611 andgm262133 O_CLKP_LV O LVDS odd channel clock positive. Reserved for gm5611 andgm262134 O_CLKN_LV O LVDS odd channel clock negative. Reserved for gm5611 andgm262135 O_CH2P_LV O LVDS odd channel 2 positive. Reserved for gm5611 and gm262136 O_CH2N_LV O LVDS odd channel 2 negative. Reserved for gm5611 andgm262137 O_CH1P_LV O LVDS odd channel 1 positive. Reserved for gm5611 and gm262138 O_CH1N_LV O LVDS odd channel 1 negative. Reserved for gm5611 andgm262139 O_CH0P_LV O LVDS odd channel 0 positive. Reserved for gm5611 and gm262140 O_CH0N_LV O LVDS odd channel 0 negative. Reserved for gm5611 andgm262141 RESERVED O Reserved; Do not connect42 RESERVED O Reserved; Do not connect43 RESERVED O Reserved; Do not connect |
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