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Fully functional usable service manual. Considering the age of the manual and device quality was better than expected
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Thank you very much, I've been very happy to find this manual on "Owner Manual". It's a perfect copy and it has been really useful for my work!
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It took about 24-hours after my payment before I was able to get to the download. Apparently, payment processing is not 100% automated. That is no big deal, just be aware of that going in.
After I got to it, it was in good shape, easy to read, etc. Not some cheap FAX copy looking thing.
Also, this site was the cheapest I found. Another Plus!
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Good price, very legible manual, exactly what I needed -- but had to wait a day to actually get the download of the manual. Would have preferred to download it immediately after payment rather than waiting for someone to "process" my order. I was surprised that I had to wait that long.
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As the only source for this manual it rather rank quite high since it is well scanned and perfectly readable.
[PWD signal] After plug the AC cord into outlet, VP voltage appears on the base terminal of transistor Q3. When the VP exceeds 13 volts, Q3 is turned on by the differential voltage between base and emitter of Q3. Then the PWD signal goes to GND level and informs "power on" to the CPU. When the VP drops less than 13 volts, Q10 is turned off. Then the PWD goes high level since the PWD is pulled up to VDD and makes the CPU go "Power failure process". Note : During plug the AC cord into outlet, all voltages are supplied to the PCB. If you open the machine for repair, make sure plug off. [Voltage and check points in the power supply circuit] Actual value on the E245-1 PCB [unit : V]
Check point Power on
A 23.2 V (AC)
B 3 0
C 17.9
D 1 9
E 5.9
F 6.5
G 4.3
H 0.0
I 0
J 5.6
K 4.8
C
B
E
D
F
I
J
G H
K
Voltage check position
� 11 �
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