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Impeccable, document très complet. Perfect, i get all i need. All schematic are correct. Thanks
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The manual is of better quality compared to other. I found it less expensive and therefore it it is the best buy cost vs quality.
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I bought the service-manual of the sony ICB-1020(an old transmitter-receiver) at "www.Owners-Manual.com", I found the service-manual for a fairly cheap price(in comparison with other sellers). I filled in some questions, payed the order with Ideal, and within 24 hours I had my service manual. I was very happy:In no time I had my service-manual and everything, but literally everything was noted down in the manual; the electronic scheme, the parts list, etcetera.
A very practical, reference-document.
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This comprehesive service maual was greatly appreciated, as was the digital download.
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Good en helpfull black and white scanned Srfvice manual of the Philps D8444. Quick service and delivery
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5.5 USB/iPod TROUBLESHOOTING
A
iPod block Troubleshooting
Step 1: Check of power supply
* Turn ON the power of product and check the power supply by iPod function. 4in1 MOD ASSY SYSMAIN ASSY
6
IC1003 (Pins 25,26)
USB bus power (V5USB)
1
IC1 (Pin 5)
3.3V regulator output (V3D) Is the voltage 3.3 V ? No Replace of IC1. Yes Power supply is OK To step 2
B
Is the voltage 3.3 V ? Yes
No
Is IC1 abnormally hot ? Yes
No
7
IC1102 (Pin 1)
The output and GND maybe short-circuited. Check the peripheral circuit.
Is the voltage 5V? Yes
No
2
Q471 (collector) Is the voltage 3.3 V ? Yes
Local power supply for 3.3V USB (V+3DU)
(S60,Is Pin 4 USBCTRL) of IC1102 high? Yes
No
No Is base (USB PWR) of Q472 high? Yes
No
Check the voltage Pin 60 (USB CTL) of IC1001 at 5V.
C
Check the voltage Pin 19 (USB POWER) of CN3 at 5V.
Check the peripheral circuit of IC1102, and is not XFALG LOW? Replace of IC1102. Check the pattern between IC1101 and CN1003.
Check the peripheral circuit of Q471 and Q472. Replace of Q471 and Q472.
3
D
IC401 (Pins 19,39) USB u-COM (V3US)
Is the voltage 3.3 V ? Yes
No
Check the pattern between Q471 and IC401.
4
IC408 (Pins 1,40)
iPod activation IC (V3UI)
Is the voltage 3.3 V ?
E
No
Check the pattern between Q471 and IC408.
Yes
5
IC501, IC502 (Pin 5) USB signal switching IC (V3D)
Is the voltage 3.3 V ? Yes
No
Check the pattern between Q471 and IC501, IC502.
F
USB SW (iPod Digital audio signal switching)
28
1 2
XV-LX61DV
3 4
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