Home |
Search |
Today's Posts |
|
Electronics Repair (sci.electronics.repair) Discussion of repairing electronic equipment. Topics include requests for assistance, where to obtain servicing information and parts, techniques for diagnosis and repair, and annecdotes about success, failures and problems. |
Reply |
|
LinkBack | Thread Tools | Display Modes |
#1
Posted to sci.electronics.repair
|
|||
|
|||
SMD top code graphics and other symbols
Other than hyphen is it only letters and numbers only for the type code?
If some extended graphics symbol then is it date code or makers code or something other than type designation.? Faced with 4 symbols SO23 top code of 1F*1 , in a line no spaces, where * is like the ASCII 172 , NOT symbol , but inverted so the barb points up. From the schematic this is a BC847B which agrees with the 1F part in a general SMD code table. Looking at about 100 of the SMD code pages no reference to symbols other than hyphen |
#2
Posted to sci.electronics.repair
|
|||
|
|||
SMD top code graphics and other symbols
On Nov 28, 7:01*am, "N_Cook" wrote:
Other than hyphen is it only letters and numbers only for the type code? If some extended graphics symbol then is it date code or makers code or something other than type designation.? Faced with 4 symbols SO23 top code of 1F*1 , in a line no spaces, where * is like the ASCII 172 , NOT symbol , but inverted so the barb points up. From the schematic this is a BC847B which agrees with the 1F part in a general SMD code table. Looking at about 100 of the SMD code pages no reference to symbols other than hyphen The next two characters should be Year and Month. I'd be curious how old the other components are, and when the unit was assembled. The Tintin hairdo you describe may refer to 2010, or some other year since the SMD codebooks were written. Or is it possible that the character was broken due to a problem during stamping? |
#3
Posted to sci.electronics.repair
|
|||
|
|||
SMD top code graphics and other symbols
spamtrap1888 wrote in message
... On Nov 28, 7:01 am, "N_Cook" wrote: Other than hyphen is it only letters and numbers only for the type code? If some extended graphics symbol then is it date code or makers code or something other than type designation.? Faced with 4 symbols SO23 top code of 1F*1 , in a line no spaces, where * is like the ASCII 172 , NOT symbol , but inverted so the barb points up. From the schematic this is a BC847B which agrees with the 1F part in a general SMD code table. Looking at about 100 of the SMD code pages no reference to symbols other than hyphen The next two characters should be Year and Month. I'd be curious how old the other components are, and when the unit was assembled. The Tintin hairdo you describe may refer to 2010, or some other year since the SMD codebooks were written. Or is it possible that the character was broken due to a problem during stamping? ++++++ Probably year 2001 from other datecodes Definitely that grcphics symbol as described, very clear under x30 mag and appropriate lighting. I have seen ( or ) , parenthesis symbol, on some other SMD but probably not posistion 1,2, or3 |
#4
Posted to sci.electronics.repair
|
|||
|
|||
SMD top code graphics and other symbols
Perhaps its logical TRUE symbol as it is inverted NOT
|
#5
Posted to sci.electronics.repair
|
|||
|
|||
SMD top code graphics and other symbols
Just to confirm , should it be marked by moveable type, it is not a 1 symbol
tipped on its side, 2 straight lines at right angles |
Reply |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Forum | |||
symbols? (and a joke) | UK diy | |||
OT-Graphics help | UK diy | |||
Electrical Symbols. | UK diy | |||
Cabinetmaker's symbols? | Woodworking | |||
Any Idea What The Symbols Mean? | Electronics Repair |