5
5
4
4
3
3
2
2
1
1
D
D
C
C
B
B
A
A
Title
Size
Document Number
Rev
Date:
Sheet
of
QUANTA
COMPUTER
JM7B
2A
Thursday, September 14, 2006
Change list
5
4
Title
Size
Document Number
Rev
Date:
Sheet
of
QUANTA
COMPUTER
JM7B
2A
Thursday, September 14, 2006
Change list
5
4
Title
Size
Document Number
Rev
Date:
Sheet
of
QUANTA
COMPUTER
JM7B
2A
Thursday, September 14, 2006
Change list
5
4
JM7B
Item
Page
ECN Number
Date
Rev.
Issue Description
Solution Description
Model
Item Id
On sheet 52, change PC214 back to a 200k resistor. That was the original value.
It was changed to a cap to fix a MAX8778 problem, which is no longer used on
Dawson/Fila.
3V/5V regulator, change enable divider.
2A
WI88163
8/29/2006
52
55
On sheet 54, replace PQ45 and PQ46 with the IMD2A BJT package. The Vgs
rating of the Si2301BDS is too low.
Change PQ45 and PQ46 in DCIN ckt.
2A
WI86725
8/29/2006
54
56
Swap pin36,37 and pin 51,52 and rename pin 58 from BC_INT to BC_INT#.
Update ECE5028 pinout.Per the SMSC ECE5028 v02 spec, the pins 36, 37, 51,
and 52 do not change definition from the ECE5018. Please swap pins 36 and
37. In addition, swap pins 51 and 52.
2A
WI89654
9/1/2006
32
57
2A
Intel has advised that the pull-up on LINKALERT# be depopulated and that
the pull-up on GPIO14 be 8.2k. Please update.
Change R588 from 10K to 8.2K and no stuff.
13
9/1/2006
WI88948
58
Add SMBus isolation circuitry for WLAN.Add isolation circuitry for SMBus on
WLAN.
2A
Done.
9/1/2006
29
WI88803
59
9/2/2006
Depop R593 and Pop R588.
31,44
9/4/2006
9/5/2006
WI89814
2A
Add ATI_Intel to MEC5025 pin 14 and tie to GND.This connection
should be labeled ATI_Intel.
Remove 3.3V_LAN_PWRGD circuit from page 44
Delete 3.3V_LAN_PWRGD from MEC5025 pin 14
Add a connection from the MEC5025 pin 14 and tie to GND.
60
Done.
No Connect pin 4 OZ77CR6.Recommendation from O2 Micro is to leave
pin 4 of the OZ77CR6 as no connect.
2A
WI89602
9/4/2006
28
61
Done.
External Work Around Circuit for MEC5025 can be removed.The need for the
external work around circuit for the MEC5025 does not exist. Please remove
this circuit.
2A
WI75516
9/4/2006
31
62
Done.
Populate PC67 and PC121 in the 3.3V_ALW regulator.
These two caps need to be populated for 3.3V and 5V input ripple
requirements.
2A
WI89781
9/4/2006
52
63
Add a voltage divider like R26 and R27 in the attached file (connects to
+3.3V_ALWP, analog ground, and pin 30). The two resistors should be
no-connect.
On sheet 52, add a feedback voltage divider on +3.3V_ALWP.In the current
schematic, we are unable to margin test 3.3V. It can only be set to 0-2V
and 3.3V.
2A
WI88782
9/4/2006
52
64
Add R502 to GND for ATI_Intel.
Integrate 0-ohm pull-down resistor on ATI_Intel net. Please integrate a
0-ohm pull-down resistor on ATI_Intel net. This is to have as a place holder
to account for any possible issues with the default state of this pin.
2A
WI90153
9/6/2006
31
65
Add Pullup PR229 for GFX_CORE_CNTRL.
SCH X01- GFX_CORE_CNTRL requires a pullup.
On sheet 50, GFX_CORE_CNTRL requires a 10k pullup to +3V_RUN
2A
WI90252
9/6/2006
50
66
Please change the WLAN LED implementation to advice from Dell.
Update WLAN LED implementation.With the current implementation, there is
a possibility for backdrive from the WLAN LED control signal to +3.3V_RUN
while in S3 / S4 / S5. With the voltage rail being +3.3V_WLAN, there is a
high probability that the LED will be illuminated while in S3 / S4 / S5.
2A
WI90472
9/7/2006
36
67
Change pull-up on LOM_SMB_ALERT# signal to 4.7K
Per Broadcom, GPIO0 signal on BCM5755M is an open-drain signal. Hence,
needs a stronger pull-up.
2A
WI90541
9/7/2006
31
68
Change PQ21 to FDS8880_NL.
Change switching freq and hi-side FET for +3.3V_ALWP.Change PQ21 to
BSC079N03.This FET package will require a layout change.
2A
WI90729
9/8/2006
52
69
Change R272, R289 from 10K to 0 ohm, depopulate C272,C311.
Need to remove RC on WLAN Sniffer circuit.Need to remove R272, R289,
C272, and C311 on the sniffer circuit. This RC on those lines is not part of
the reference schematic and would just slow those lines down.
2A
WI90456
9/9/2006
36
70
Change R48 to 1.13K, 1%. This will allow us to increase amplitude in the 100M &
1G template tests, and to compensate for some of the amplitude loss due to the
next change.
Change R351, R352, R358, R362, R65, R366, R468, R370 to 2K-ohm, 1% and
change C407, C410, C416, C423 to 0.1uF. Populate all for X01. This helps in
improving the return loss at the lower frequencies
Change LOM RDAC & Termination component values to improve IEEE
results.some of the test results in the IEEE test suite are marignally passing.
Results show variation from system to system (due to component variation,
board-to-board impedance variation, etc). Hence, need to make sure of
sufficient margins to account for these variations.
2A
WI90542
9/9/2006
40
71
Add PC218,PC219,PC220 on +3.3V_ALW.
WWAN Noise - LOM Improvement - Additional decoupling on
+3.3V_ALW.There's no decoupling on the +3.3V_ALW that sources the
+3.3V_LAN and other LOM Voltage rails. The +3.3V_ALW traces across the
board (near the edges) and is noisy. Add 4.7uF (0805 pkg), 1uF (0603 pkg)
and 0.1uF (0402 pkg) near PQ41 (on UMA) or PQ47 (on DIS) to provide some
decoupling on this voltage rail near the LOM.
2A
WI91075
9/11/2006
41
72
Change PQ35 and PQ22 from FDS7066ASN3 to SI4336DY-T1-E3 and PR110 to
23.2K and PR65 to 137K for setting OCP.
FDS7066 will be EOL.Because FDS7066ASN3 will be EOL.
2A
WI91174
9/11/2006
9/12/2006
47,52
73
Change PQ7,PQ8,PQ9 and PQ13 from FDS7088SN3 to SI7336ADP and change
PR221 to 162K for setting OCP.
WI91176
FDS7088 will be EOL.Because FDS7088SN3 will be EOL.
2A
48,51
9/11/2006
9/12/2006
74
