JBL PowerBass PB12, Service Manual

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Part#
Ref. Designator Description
40726 R49 15k .25W 5% carbon
40727 R50 2k2 .25W 5% carbon
Capacitors
30710
C1 2200uF 100V
+80/-20 Electrolytic 105C
SAFETY
30710
C2 2200uF 100V
+80/-20 Electrolytic 105C
SAFETY
30502 C3 100nF 50V 20% mono ceramic
30502 C6 100nF 50V 20% mono ceramic
30521
C7A 100nF 250V
20%
ceramic/film SAFETY
30521 C7B 100nF 250V 20% ceramic/film SAFETY
30718 C10 4u7F 100V 20% BP/NP Electr DF<.1
30523 C11 330nF 100V 20% mono ceramic
30532
C20 220nF 250V
20%
metallized polyester
30502 C21 100nF 50V 20% mono ceramic
30502 C22 100nF 50V 20% mono ceramic
30527
C24 330nF 50V
5%
mono ceramic
C25 NOT USED
30508 C26 10nF 50V 10% mono ceramic
30513 C27 3n3F 50V 10% mono ceramic
30711
C32 22uF 35V
+80/-20 Electrolytic
30715 C40 10uF 16V +80/-20 Electrolytic
30716 C41 1uF 16V +80/-20 Electrolytic
30717
C42 100uF 16V
+80/-20 Electrolytic
CW NOT USED
30505 CZ 100nF 100V 20% ceramic/film
Semiconductors
50105 D1 1N4744A 15V 1w Zener
50105
D2 1N4744A 15V 1w Zener
50114
D3 1N5265B 62V .5w Zener
50115 D4 1N4938 5% Sig Diode
EDN 10025 changes D4 on poweramp section from 1N4148 to 1N4938 part # 50115 June 26
50113
D5 1N4735A 6.2V 1W
50103 D6 1N5234B 6V .5w Zener
50104 D7 1N4148 5% Sig Diode
50104 D8 1N4148 5% Sig Diode
50112
D10 1N5242B 12V
5%
.5w Zener
50104 D11 1N4148 Sig Diode
50112 D12 1N5242B 12V .5w Zener
50104
D13 1N4148 Sig Diode
50104 D14 1N4148 Sig Diode
60157 Q1 2N5457 25V N-chnl FET
60155 Q10 2N5401 120V PNP 600mA
60155
Q11 2N5401 120V PNP 600mA
60156 Q12 2N4401 40V NPN 600mA
50100 DIODE BRIDGE RS604 6AMP Bridge rectifier SAFETY
60102
U1 TLO64 Quad OpAmp
60302
MODULE S64AMI Power Amp Module SAFETY
Miscellaneous
80121 L1 220uH 5 Amp 5% Gapped Ecore choke
80122 L2 8u5H 5 Amp 5% ferrite bead