davidlam Posted October 10 Report Share Posted October 10 one native / original HS-1800 is having intermittent problem on scanned images.. without any errors. we suspect " light source sparkle ..". Since we don't have hs1800 light source handy... will a S-4 scanner light source workable in HS-1800 ?? Expertise comments welcome, Sirs.. Quote Link to comment Share on other sites More sharing options...
Dave S Posted October 10 Report Share Posted October 10 Yes, the S4 and HS-1800 light sources are compatible with each other. Quote Link to comment Share on other sites More sharing options...
davidlam Posted October 10 Author Report Share Posted October 10 thank you for teaching.. Quote Link to comment Share on other sites More sharing options...
davidlam Posted October 10 Author Report Share Posted October 10 below is the symptom scan showing problem (intermittent and no error). any ideas what to check or replace . Quote Link to comment Share on other sites More sharing options...
davidlam Posted October 10 Author Report Share Posted October 10 around the dog's face .. Quote Link to comment Share on other sites More sharing options...
Dave S Posted October 10 Report Share Posted October 10 What does the scanner sensitivity graph look like? Post a photo with the shading both on and off. Quote Link to comment Share on other sites More sharing options...
Minilab service Posted October 10 Report Share Posted October 10 (edited) Here not LED problem. Probably LVDS noise ( board on the top of scanner, scanner/afc control pcb, or LVDS cable ) . S4 and HS1800 light source is exchangeable. Can be light source type 0 , type 1 and type 2 . Type can see if to look at connector J143 ( jumpers are different ) . Edited October 10 by Minilab service Quote Link to comment Share on other sites More sharing options...
TECNOR Posted October 10 Report Share Posted October 10 I had same problem, I solved this changed only PCI LVDS. Quote Link to comment Share on other sites More sharing options...
Minilab service Posted October 10 Report Share Posted October 10 He has HS1800 . It is USB scanner with scanner/afc control pcb . S4 can be connected to computer through PC-scanner interface PCB and PC-laser interface PCB . If on computer used PCI-LVDS/ARCNET PCB then scanner LVDS is not connected directly. Then scanner is connected to Digital ICE pcb. Digital ICE pcb through Image processing PCB is connected to PCI-LVDS/ARCNET PCB . Quote Link to comment Share on other sites More sharing options...
davidlam Posted October 11 Author Report Share Posted October 11 20 hours ago, Dave S said: What does the scanner sensitivity graph look like? Post a photo with the shading both on and off. I'm asking hs1800 remote user to send graphs..I will share once he sends.. Quote Link to comment Share on other sites More sharing options...
davidlam Posted October 12 Author Report Share Posted October 12 chart user sent me . Quote Link to comment Share on other sites More sharing options...
davidlam Posted October 12 Author Report Share Posted October 12 look good when HS-1800 is working well. Intermittent scanning problem I repeat. . Quote Link to comment Share on other sites More sharing options...
Minilab service Posted October 12 Report Share Posted October 12 Light source is good. Green uniformity is not ideal, but acceptable. On your scanner problem with not with light source, but with LVDS. Can be faulty board at the top of scanner unit, scanner/afc control pcb, or LVDS cable. I think one board is faulty. Guess need to find scanner/afc control pcb. Quote Link to comment Share on other sites More sharing options...
kodak_service Posted October 12 Report Share Posted October 12 Try to reconnect the connector J/P436 on Scanner Control PCB and the connector J/P90 on scanner head. Quote Link to comment Share on other sites More sharing options...
Dave S Posted October 12 Report Share Posted October 12 I agree with what Minilab service has said. Unfortunately I think this will likely be a problem with the Scanner/AFC control PCB Quote Link to comment Share on other sites More sharing options...
PHOTOLABPART.COM Posted October 12 Report Share Posted October 12 RESPECTED SIR YOU CAN SWAP LED WITH 1800 AND S4 IF LIGHT SOURCE PROBLEM THANKS Quote Link to comment Share on other sites More sharing options...
davidlam Posted October 13 Author Report Share Posted October 13 we had tried to clean & reseat all connectors and wait for next error/ image symptom comes back or not (Hope not ...) As I said it is intermittent problem Quote Link to comment Share on other sites More sharing options...
davidlam Posted November 2 Author Report Share Posted November 2 Dear Sirs,,, I write to confirm / conclude ... after replacing J391472-00 the AFC scanner control PCB,,, the intermittent scanning PROBLEM has gone. thank you very much for your advice / help given ! Dave S 1 Quote Link to comment Share on other sites More sharing options...
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