Hi
im trying to obtain a schematic diagram for the sanwa pm1745 monitor as fitted in sega video games
hope you can help
regards
Tony
schematic wanted for sanwa pm1745 monitor
sanwa pm 1745
Hi :smt006
it does seem that way ken westerfield does not have one
waiting to hear from dhleisure
was sent a drawing from john at sega t.s. but its very poor with no title will check it out best i can when i return to work
anybody know if the Ultimate Monitor Repair Guide from star tech journal is any good
cheers
tony
it does seem that way ken westerfield does not have one
waiting to hear from dhleisure
was sent a drawing from john at sega t.s. but its very poor with no title will check it out best i can when i return to work
anybody know if the Ultimate Monitor Repair Guide from star tech journal is any good
cheers
tony
sanwa pm 1745
it was passed to me as being "dead" after talking to the boys on the floor it seems the picture would collapse to a straight horizontal line so it looks like a vertical problem
checked caps and 1 was dead and 1 low so replaced and heres the bad part the monitor was hooked up to 240v (should have gone to check instead of reading the fuse rating) on the bench and popped the filter in cap (i hope thats all) now have a replacement but will fit next week when i return to work
no signs of dry joints and the LOPT looks good so thought id search out a schematic this week just in case
this is very much a return to component level work after years of advance replacement due to time
tony
checked caps and 1 was dead and 1 low so replaced and heres the bad part the monitor was hooked up to 240v (should have gone to check instead of reading the fuse rating) on the bench and popped the filter in cap (i hope thats all) now have a replacement but will fit next week when i return to work
no signs of dry joints and the LOPT looks good so thought id search out a schematic this week just in case
this is very much a return to component level work after years of advance replacement due to time
tony
Re: sanwa pm 1745
drslots wrote:it was passed to me as being "dead" after talking to the boys on the floor it seems the picture would collapse to a straight horizontal line so it looks like a vertical problem
checked caps and 1 was dead and 1 low so replaced and heres the bad part the monitor was hooked up to 240v (should have gone to check instead of reading the fuse rating) on the bench and popped the filter in cap (I hope thats all) now have a replacement but will fit next week when I return to work
no signs of dry joints and the LOPT looks good so thought id search out a schematic this week just in case
this is very much a return to component level work after years of advance replacement due to time
tony
I'll keep my fingers crossed on that, 240V is quite an extreme out of range tollerance.
Problem with Sanwa chassis is there is a really bad bulk load of them, (the ones that where in all the Outrun 2s).
if you have a vertical frame collapse change the vertical frame ic and check the voltage input
240v into an isolated 115v chassis is a bit of a crazy thing to do,so where is the fault at now--frame collapse or power supply shot?
surely feeding this chassis with 240v would have at least taken out the fuse and maybe a diode or two in the primary psu circuit as well as the mains filter cap
240v into an isolated 115v chassis is a bit of a crazy thing to do,so where is the fault at now--frame collapse or power supply shot?
surely feeding this chassis with 240v would have at least taken out the fuse and maybe a diode or two in the primary psu circuit as well as the mains filter cap
grantspain wrote:if you have a vertical frame collapse change the vertical frame ic and check the voltage input
240v into an isolated 115v chassis is a bit of a crazy thing to do,so where is the fault at now--frame collapse or power supply shot?
surely feeding this chassis with 240v would have at least taken out the fuse and maybe a diode or two in the primary psu circuit as well as the mains filter cap
ok at the moment its been put back into its box decided to go no further untill i get back to work and even then it will take a little time to get to it and replacement cap only arrived late on friday
will let you know the outcome in a couple of weeks i hope!!!!!!!!!!!
tony
Re: sanwa pm 1745
AndyGeezer wrote:drslots wrote:it was passed to me as being "dead" after talking to the boys on the floor it seems the picture would collapse to a straight horizontal line so it looks like a vertical problem
checked caps and 1 was dead and 1 low so replaced and heres the bad part the monitor was hooked up to 240v (should have gone to check instead of reading the fuse rating) on the bench and popped the filter in cap (I hope thats all) now have a replacement but will fit next week when I return to work
no signs of dry joints and the LOPT looks good so thought id search out a schematic this week just in case
this is very much a return to component level work after years of advance replacement due to time
tony
I'll keep my fingers crossed on that, 240V is quite an extreme out of range tollerance.
Problem with Sanwa chassis is there is a really bad bulk load of them, (the ones that where in all the Outrun 2s).
what caught us out was this was fitted in a namco time crisis 3 we have a secound time crisis 3 in another location with polo 2,s id like to think if it came from a sega machine the 110v input would of registered without thinking what monitor it was or at least started with 110v
we live and learn!!!!!