johnvv
Member
Looking for some remedial help on PCB parts ID for my Wild Kingdom EM gun game. I've attached two pics of the PCB in questions and a pic of the scanned schematic area for the PCB.
This board controls the left and right speed of the animals (via the 5 POTs) as they roam the African Savannah. After looking at this board with a friend, it looks like a number of the original parts have been replaced and that the replacement parts are now bad or simply wrong. I'm not sure if the two red wires on the back of the PCB are original or not - I suspect not.
At this point, I'd like to ID all the parts on this board and see about getting replacements as part of the repair effort. I suspect the POTs are okay, but the diodes and transistor are bad or have wrong values. I thought I could read the schematics and figure out what parts I need, but I can't. So, any help would be very much appreciated and you might save some animals lives by allowing them to move faster and avoid the hunters.
Top of PCB 549-914 Motor Speed Control
Bottom of PCB 549-914 Motor Speed Control
I think the following parts may work for replacing the diodes (which ones?) and the transistor, per a suggestion from a friend. Any clarification on these would be appreciated:
Diode Replacement
Transistor Replacement (I am told that jumpers will be needed to get this modern part into circuit)
As I mentioned, I can't correctly read the schematics and ID the parts. The schematics are the best reference for the correct parts given that some original parts were replaced with the incorrect parts that are now on the board. Simple explanations of which parts are needed and where they go would be most helpful. I am at least skilled enough to remove and solder new parts.
Thanks in advance for any help.
This board controls the left and right speed of the animals (via the 5 POTs) as they roam the African Savannah. After looking at this board with a friend, it looks like a number of the original parts have been replaced and that the replacement parts are now bad or simply wrong. I'm not sure if the two red wires on the back of the PCB are original or not - I suspect not.
At this point, I'd like to ID all the parts on this board and see about getting replacements as part of the repair effort. I suspect the POTs are okay, but the diodes and transistor are bad or have wrong values. I thought I could read the schematics and figure out what parts I need, but I can't. So, any help would be very much appreciated and you might save some animals lives by allowing them to move faster and avoid the hunters.
Top of PCB 549-914 Motor Speed Control
Bottom of PCB 549-914 Motor Speed Control
I think the following parts may work for replacing the diodes (which ones?) and the transistor, per a suggestion from a friend. Any clarification on these would be appreciated:
Diode Replacement
Transistor Replacement (I am told that jumpers will be needed to get this modern part into circuit)
As I mentioned, I can't correctly read the schematics and ID the parts. The schematics are the best reference for the correct parts given that some original parts were replaced with the incorrect parts that are now on the board. Simple explanations of which parts are needed and where they go would be most helpful. I am at least skilled enough to remove and solder new parts.
Thanks in advance for any help.