LG LX-D2640 Service Manual page 14

Rec check (Q252, Q202 ON : R273, R223 High)
IC203 pin2, 8 signal input chek
YES
IC203 pin3, 7 output check
YES
L201 pin5 power check
YES
L201 pin1, 3 oscilates check
YES
Deck replacement
ON
Q202, Q252 Base "Low" check
IC501 pin9 "L" check
ON
IC203 pin6 VCC power check
ON
Power trouble check
ON
C227(+) power input check
Q204, Emitter oscilates check
R212 R262 oscilates wave check
Pattern check
- 2-7 -
ON
YES
Q202, 252 replacement
ON
YES
Refer to power check
ON
YES
R228 10V check
ON
YES
L201 replacement