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IBM 15” Service Manual
35
4.U203-DATA OUTPUT
Measured DCLK DVS, DHS (pin 117,116 from
U203 ) Is the waveform ok?
DCLK around 40 MHz
, DVS=60.09Hz , DHS
around 80 KHz ?(refer to input signal=
640x480@60 Hz 31k, and LED is Green)
NG , no transition
Replace GM5115 /2115
(U203) or replace Main
board.
Check U203 GM5115 /2115
Signal output ER0~7,EG0~7,EB0~7
OR0~7,OG0~7,OB0~7
Is the waveform ok ?
If MainBoard being replace ,
please do the DDC – content
reprogrammed
LP501—LP509 or RP201 or RP202
Содержание ThinkVision L150
Страница 4: ...IBM 15 Service Manual 4 Revision List Revision Date Change Description h t t p w w w w j e l n e t ...
Страница 15: ...IBM 15 Service Manual 15 5 5 2 L150P Model h t t p w w w w j e l n e t ...
Страница 16: ...IBM 15 Service Manual 16 h t t p w w w w j e l n e t ...
Страница 17: ...IBM 15 Service Manual 17 h t t p w w w w j e l n e t ...
Страница 22: ...IBM 15 Service Manual 22 Power Block Diagram h t t p w w w w j e l n e t ...
Страница 28: ...IBM 15 Service Manual 28 7 PCB Layout 7 1 Main Board 715L1039 1 h t t p w w w w j e l n e t ...
Страница 29: ...IBM 15 Service Manual 29 h t t p w w w w j e l n e t ...
Страница 30: ...IBM 15 Service Manual 30 7 2 Inverter Power Board 715L1034 1 h t t p w w w w j e l n e t ...
Страница 31: ...IBM 15 Service Manual 31 7 3 Keypad Board 715L1067 C h t t p w w w w j e l n e t ...