Product Information
Samsung Electronics
10-8
PHY Chip Error
U165's input
voltage = +5V
U165(pin no. 82)'s
Reset input level = High ?
U165(pin no. 53)'s
input clock = 25MHz ?
U165(pin no. 36 and 43)'s
input clock = 2.5MHz or 25MHz ?
Check the Network Board
Solering status ?
Check the RA1, RA10, R138, R144
and R145
Check the LAN Cable
Replace the board
If you can't repair the board
PHY Chip Error
Check the filter (L1, L2)
No
Yes
Yes
Yes
Yes
No
No
Check the Y2, R97 and R105
No
Check the Y2, R97 and R105 and
check the soldering status of U165
Check the connector J1's pin no. 39
Check the U22's pin no. 123
Check the U22's pin no. 75
Reset signal :
Nomally High during operation
Summary of Contents for ML 7000
Page 53: ...MEMO Samsung Electronics 5 18 Troubleshooting ...
Page 55: ...Samsung Electronics 6 2 Exploded Views MEMO ...
Page 57: ...Samsung Electronics 6 4 Exploded Views 850 856 855 853 857 851 852 854 858 850 2 850 1 ...
Page 59: ...Samsung Electronics 6 6 Exploded Views 6 2 1 Frame Ass y ...
Page 93: ...Electrical Parts List Samsung Electronics 7 12 MEMO ...
Page 97: ...Samsung Electronics 8 4 Block Diagrams MEMO ...
Page 106: ...PCB Diagrams Samsung Electronics 9 9 9 10 Local Talk Service Part s Code JC92 00971A ...
Page 107: ...PCB Diagrams Samsung Electronics 9 10 9 11 Serial IRDA Board Service Part s Code JC92 01116A ...