Acorn Atom Colour Board (60Hz) Parts List

Item Part Type Description
PCB 202001 iss 1  
U1 40138  
U2,3 LM1496  
X1 4.433619 MHz PAL Colour burst crystal
VC1   Crystal freq adjust.
Q1,2,3, 6,16,17,18 BC239  
Q4,5,9,10,14,15 BC184  
Q7,8,11,12 BC309  
Q13 Not on board  
C1,2 10nF  
C3,4 100pF ??  
C5,9 47nF  
C6,7 22uF  
C8 Not on board  
R1 100R  
R2,5,17,18,21,39,40,44,45,47,49 4K7  
R3,4 220R  
R6,7,9,12,14,27,29,31,33,36 410R  
R8,15,20,46, 1K  
R10,11,25,26,32,34,35 3K3  
R13 Not on board  
R19,28,30,37,38 2K2  
R41 39K  
R42,43   BLU,?,BR
R49,51 41K