Read JBL E 250P (serv.man15) Service Manual online
E250P
Integrated Circuit Diagrams
OPAMP, QUAD
TL074CDR
U2, 3
TL074CDR
U2, 3
OPAMP, DUAL
TL072CDR SO-8,
NJM4558M-TE3
U5, 6, 4
TL072CDR SO-8,
NJM4558M-TE3
U5, 6, 4
IR2111 HALF-BRIDGE
DRIVER
U7
DRIVER
U7
2
Base
3 Collector
1 Emitter
1
2
3
2N5401
Q1
Q1
2
Base
3 Collector
1 Emitter
1
2
3
MPSW06RLRA,
MPSW56RLRAMPQ,
MPS2222ARLRA,
2N2907A, 2N5551,
Q2, 16, 3, 21, 19, 23, 17
MPSW56RLRAMPQ,
MPS2222ARLRA,
2N2907A, 2N5551,
Q2, 16, 3, 21, 19, 23, 17
MOSFET IRF640
Q18, 22
Q18, 22
TIP31C
Q4
Q4
MMBT3904LTI SOT23,
MMBT3906LTI SOT23,
DTC114EK SMT3,
MMBT5401 LTI,
MMBT5551 LTI
Q11, 14, 13, 5, 8, 9, 6, 10,
12, 15, 7, 20, 24, 26, 25
MMBT3906LTI SOT23,
DTC114EK SMT3,
MMBT5401 LTI,
MMBT5551 LTI
Q11, 14, 13, 5, 8, 9, 6, 10,
12, 15, 7, 20, 24, 26, 25
BEVEL
1. G
2. D
3. S
3. S
1
2
3
B
C
E