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Service manual very complete and clear. It was very helpfull for my work.
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This is the 2nd time I download manuals from this website and I can say it's what I was expecting. It contains schematic, layout (decent quality), short description, parts and dissasembly instructions. I recomend it for anyone who wants to repair/modify this device.
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Very useful Service Manual! With it I was able to identify the damaged pots in my old amplifier, purchase the adequate replacements and make myself the repair.
I have again my old amplifier, still a very good one that I will keep for as many years as I can!
Thanks to Owner Manuals!
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Good price for the manual and easy to locate on the site and download. Plus, just like the original. Thanks a lot.
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Genuine Service Manual. Link was available in less then an hour or so. Service Manual contains assembly, PCB layout, complete circuit diagram, Components list etc
FIRMWARE RENEWAL MODE
1. Turn the power on and press [EJECT] button on the remote control unit to put the LCD TV/DVD into DVD mode. Then remove the disc. 2. To put the LCD TV/DVD into F/W version up mode, press [9], [8], [7], [6], and [MODE] buttons on the remote control unit in that order. Fig. a appears on the screen.
"*******" differs depending on the models.
5. After programming is finished, the disc will be ejected automatically. Fig. e appears on the screen and the checksum will be shown in (*2).
"*******" differ depending on the models.
F/W Version Up Mode VERSION : Completed (*2) SUM : 7ABC
Model No : ******* VERSION : *.** ************.***
F/W Version Up Mode
Model No : ******* VERSION : *.**
Please insert a DISC for F/W Version Up.
Fig. e Completed Program Mode Screen
EXIT: SELECT
Fig. a Version Up Mode Screen
6. 7. 8. 9.
3. Insert the disc for version up into the disc slot. 4. The LCD TV/DVD enters the F/W version up mode automatically. Fig. c appears on the screen. If you enter the F/W for different models, �Disc Error� will appear on the screen, then the disc will be ejected automatically.
"*******" differ depending on the models.
At this time, no button is available. Remove the disc. Unplug the AC cord from the AC outlet. Then plug it again. Press [EJECT] button on the remote control unit to put the LCD TV/DVD into DVD mode again. Press [1], [2], [3], [4], and [DISPLAY] buttons on the remote control unit in that order. Fig. g appears on the screen.
"*******" differs depending on the models.
F/W Version Up Mode VERSION : Reading...
Model No : ******* VERSION : *.** ************.***
(*1)
MODEL : ******* Version : *.** Region : *
EEPROM CLEAR : CLEAR
EXIT: SELECT
Fig. g Fig. c Programming Mode Screen
The appearance shown in (*1) of Fig. c is described as follows:
No. 1 2 3 Appearance Reading... Erasing... State Sending files into the memory Erasing previous version data
10.Press [CLEAR] button on the remote control unit. Fig. h appears on the screen.
"*******" differs depending on the models.
Programming... Writing new version data
MODEL : ******* Version : *.** Region : * EEPROM CLEAR : OK
EEPROM CLEAR : CLEAR
EXIT: SELECT
Fig. h
When �OK� appears on the screen, the factory default will be set. Then the firmware renewal mode is complete. 11.To exit this mode, press [CH. o / p] button to go to TV mode, or press [POWER] button to turn the power off.
8-1
A7420FW
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