Apple Macbook Pro Aluminum 13-Inch Black Laptop Keyb Technical Guide - Page 30

Test and inspect Top Case, With DVM, verify

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2010-06-15 7. Inspect MagSafe port on Yes computer for physical damage, debris or metal fragments No attracted to magnetic connector. Is MagSafe connector clean and free from defects? 8. Verify adapter status LED Yes turns on green then orange indicating power and battery charge in progress. A green LED can indicate a full battery, removal of battery or battery not recognized. No 9. Verify power from adapter is Yes present on logic board. Remove system battery, use AC power only. With DVM, verify voltage presence of Q7001, pin 5 is 16.7Vdc with AC adapter connected. Reseat or test known-good MagSafe cable to achieve power for logic board. No 10. Test and inspect Top Case Yes Power Button. Stuck or open power on key or keyboard disconnect can disable the power on of system. If button does not work, locate R5015 pads on logic board just above trackpad connector, and short pads to power up logic board. If power on key is stuck, keyboard cable must be disconnected for R5015 to No work. Does system power on? (Reconnect keyboard cable to confirm bad or intermittent connections.) Go to step 8 Clean port assembly. Replace X03 MagSafe board if necessary. System starts and has power. MagSafe LED indicates power is flowing to logic board. Verify customer battery will also charge. Review battery P11 health to ensure customer satisfaction. AC power is down or battery is not charging. Go to step 9 Logic board has power X03 adapter energy to start system, 16.7V found on Q7001. MagSafe cable reseat or replacement resolved issue. If still no system power on indications, go to step 10 No voltage measured on Q7001, AC adapter power not M21 going to logic board power supplies. Replace logic board. Power on key works fine, issue resolved. Power on key works when keyboard cable is reseated. Power on key appears to K05 be stuck, had to remove keyboard cable for R5015 power on. Replace top case for stuck power on key No logic board power on M01 when shorting R5015 pads. Replace logic board. MacBook (13-inch, Aluminum, Late 2008) Symptom Charts - Startup and Power Issues 30

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MacBook (13-inch, Aluminum, Late 2008) Symptom Charts — Startup and Power Issues
30
2010-06-15
7.
Inspect MagSafe port on
computer for physical damage,
debris or metal fragments
attracted to magnetic
connector. Is MagSafe
connector clean and free from
defects?
Yes
Go to step 8
No
Clean port assembly. Replace
MagSafe board if necessary.
X03
8.
Verify adapter status LED
turns on green then orange
indicating power and battery
charge in progress.
A green LED can indicate a full
battery, removal of battery or
battery not recognized.
Yes
System starts and has power.
MagSafe LED indicates power
is flowing to logic board.
Verify customer battery will
also charge.
Review battery
health to ensure customer
satisfaction.
P11
No
AC power is down or battery
is not charging.
Go to step 9
9.
Verify power from adapter is
present on logic board.
Remove system battery, use AC
power only.
With DVM, verify
voltage presence of Q7001, pin
5 is 16.7Vdc with AC adapter
connected. Reseat or test
known-good MagSafe cable to
achieve power for logic board.
Yes
Logic board has power
adapter energy to start
system, 16.7V found on Q7001.
MagSafe cable reseat or
replacement resolved issue.
If still no system power on
indications, go to step 10
X03
No
No voltage measured on
Q7001, AC adapter power not
going to logic board power
supplies.
Replace logic board.
M21
10.
Test and inspect Top Case
Power Button.
Stuck or open power on
key or keyboard disconnect
can disable the power on
of system. If button does
not work, locate R5015 pads
on logic board just above
trackpad connector, and
short pads to power up logic
board.
If power on key is
stuck, keyboard cable must
be disconnected for R5015 to
work.
Does system power on?
(Reconnect keyboard cable to
confirm bad or intermittent
connections.)
Yes
Power on key works fine, issue
resolved.
Power on key works when
keyboard cable is reseated.
Power on key appears to
be stuck, had to remove
keyboard cable for R5015
power on.
Replace top case
for stuck power on key
K05
No
No logic board power on
when shorting R5015 pads.
Replace logic board.
M01