Could be a dead BA or laser or both. v9 was pretty gay on that issue, and is very easy to that happen if doesn't modded well and you don't use very good DVD-R medias.
A photo of instalation helps too, check if your laser is still alive (should be 5~6 ohms from coils).
SCPH-39001 v7 GH-022 NTSC U/C, Matrix Infinity v1.93 (installed by me), HDLoader v0.8c, Network Adapter (with SATA mod), 1TB SATA, SMS v2.9R4, VGA and GameLink 400 cables.
DEV1: uLaunchELF v4.42b / DEV2: CodeBreaker 10.1. Got PSX and PS3 too.
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