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There are currently no product reviews.
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Excellent printing quality.
A complete and very usefull service manual with all details.
GREAT SERVICE AT VERY LOW PRICE!
A+++++++++++++++++++++++++
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Very fast and perfect delivery. Clear and well scanned. A lot of work professionally realized.
Again thak you a lot
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This manual is accurate and of high quality. It is only volume 2 of the service manual. This is schematic, parts lists, and exploded mechanical drawings. The theory of operation and the diss-assembly instructions are in volume 1. The unit can be tricky to dis-assemble portions of so the volume 1 manual can be important. The product description of the manual is accurate but it does not say anything about volume 1 and the image of the front page does clearly say Volume 2.
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Wellll again thank you very much fast and effective. Clear and well done for such an old TV!!!!
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It has all the information you will need to fix it. The main circuit diagram is only A4 but being a PDF, you can print it to any size - I did it on two sheets of A3 and it didnt lose any detail - just made it readable when pinned up above the bench. I've found the fault, just need to buy some obscure bits to get it going again!
I cant fault the process, I paid for the manual in the morning and it was ready to download by lunch time.
PC-UM10M
2
Check the power unit, the power cable, their connection, the DC+12V power line, and IP1.
Is FB23 at DC+12V ? (Yes) Is CN10-5P at H level (DC+3.3V) ? (Yes) Is CN10-6P at DC+1.0V or below when the brightness is maximum ? (Yes) Is the inverter PWB normal ? (Yes) Check the lamp in the LCD module.
(No)
(No)
Check BLON signal and CN10 peripheral circuits.
(No)
Check IC16 peripheral circuits.
(No)
Replace the inverter PWB unit.
3
Are signals at IC13-17, 24, 40P normal ? (Yes) Are signals at R19 and R71 normal ? (Yes) Is CN12-1P at DC+12V ? (LL-T1620H/B only) (Yes) Is CN9-39P at DC+5V ? (LL-T1520H/B only) (Yes)
Is the signal between IC13 and IC27 normal ? (LL-T1620H/B only)
(No)
Check CN2, IC5, and IC13 peripheral circuits.
(No)
Check the analog signal cable, CN2 peripheral, and IC peripheral circuits.
(No)
Check IP4 and IC25 peripheral circuits.
(No)
Check IP2 and IC25 peripheral circuits.
(No)
Check IC13 and IC27 peripheral circuits.
(Yes)
Is the signal between IC27 and CN12 normal ? (LL-T1620H/B only)
(No)
Check IC27 and CN12K peripheral circuits.
(Yes)
Is the signal between IC13 and CN9,C11 normal ? (LL-T1520H/B only)
(No)
Check IC13, CN9, and 11 peripheral circuits.
(Yes) Are the cables of the LCD unit normal ? (Yes) Replace the LCD unit. (No) Check the cables and related parts.
LL-T1520-H/B LL-T1620-H/B TROUBLE SHOOTING
4�2
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