Hi, I too got an H03 error message on my portable Panasonic DVD LS53 model. What procedure do I perform to clear the error message and get it going again? I am not a technician but I do fix my appliances, car, and electronics all the time so I am not afraid to take things apart knowing I can get them reassembled successfully! Maybe it's just a S/W and not a H/W problem but you will have to let me know in either case. Also let me know if the error message is a H-zero-three or H-O-three. Thank you for all the assistance that you can provide. Jim

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