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OK?..manual is complet and helpfull... for repairing such a old and rare boombox like JVC PCM it is necessary...
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Super Anleitung. Ordentliche Auflösung. Das ganze noch in Deutsch wäre zu schön. Alle Datenblätter sind sauber Kopiert und alle Leitungswege sind sauber ausgeführt
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Thanks God for the internet and thanks for the service like this - proffessional solution on time.
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About the service it's very fast and reliable. About the manual the quality is high enough to read even the tiniest details on the wiring diagrams so you can't ask much more than that, let it alone for a manual of a product from 20 years ago. Thank you, very satisfied.
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The downloaded quality was as good as the orignial
3-11. Upgrading the FPGA Program Version
3-11. Upgrading the FPGA Program Version
The DSR-1800/P/1600/P mounts the FPGA (field programmable gate alley) on the process board and uses flash ROMs for loading this program. The version of these flash ROMs mounted on the board can be upgraded using the following method.
3-11-1. Upgrading the Version
(1) Prepare a DJ-499 (J-6444-990-A). (2) Write the required number of rewrittable program files in the PROM (M27C1001-70F1 (F8) (8-75958-91) or equivalent). Refer to the following for the number required. (3) Mount the PROMs in order from the one with the smallest number to the DJ-499 IC100 to IC103. (4) Set the DJ-499 as follows. (5) With the power of the unit set to OFF, mount the connector of the corresponding board to DJ-499. (6) Turn ON the power of the unit. . Of the three LEDs on the DJ-499, the green D1 at the end lights up and goes off. (The dummy data will be loaded in the FPGA. It will be completed when D1 goes off.) . The same green D1 will blink after a while. (The flash ROM on the board is erased and new data is downloaded.) . It stops blinking, and the green D2 in the middle lights up, meaning that upgrading has ended normally. . If the red D3 in the middle lights up halfway through, it means that a writing error has occurred. Check if the DJ-499 is connected properly, and perform from step (6).
COPY LOAD MD 0 MD 1
3-11-2. Setting of DJ-499
Model name DSR-1800/P Board name DPR-175 Connect to DJ-499 CN454 CN455 DSR-1600/P SSP-23 CN1454 CN1455 PROM file name SIF-00/01/02 FU-00/01/02/03 SIF-00/01/02 FU-00/01/02/03
2000 OTHER
Switch setting of DJ-499 S3
3-36
DSR-1800/P/1600/P
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