SB 300 - JBL.com
SB 300 - JBL.com
SB 300 - JBL.com
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1<br />
L<br />
N<br />
!<br />
3.15A/250V<br />
F1<br />
!<br />
MOV1<br />
470V<br />
2.5Ω/5A<br />
NTC1<br />
L1<br />
223/50V<br />
C2<br />
!<br />
L2<br />
65uH<br />
C14<br />
6.8uF/400V<br />
R19<br />
3Ω65<br />
!<br />
CY1<br />
<strong>SB</strong> <strong>300</strong><br />
<strong>SB</strong><strong>300</strong> SUBWOOFER SMPS Power Supply<br />
NOTE: Ordinarily the <strong>JBL</strong> <strong>SB</strong><strong>300</strong> SMPS Power Supply module, part# ETK0926122020, is supplied only as a <strong>com</strong>plete unit. Supplied<br />
Schematic is included only for reference when the above part is not available and/or repair to <strong>com</strong>ponent level is necessary. For <strong>JBL</strong><br />
part number equivalents, contact <strong>JBL</strong> at 516-336-4525.<br />
0.33UF<br />
CX2<br />
R20<br />
3Ω65<br />
!<br />
R14<br />
...Ω<br />
OPEN<br />
R16<br />
10K/NTC<br />
IC2<br />
OB2535<br />
4<br />
3<br />
2<br />
1<br />
5<br />
6<br />
7<br />
8<br />
! !<br />
L3<br />
L4<br />
7.6mH<br />
R4<br />
10K<br />
R6<br />
2M2<br />
C1<br />
222/50V<br />
R17<br />
750K<br />
R18<br />
1M5<br />
R3<br />
3M<br />
!<br />
0.68UF<br />
CX3<br />
R45<br />
2M2<br />
56K<br />
R5<br />
FR107<br />
D1<br />
C15<br />
10uF/50V<br />
15mH<br />
IC1<br />
Q3<br />
AO3400A<br />
R23<br />
47K<br />
R24<br />
6K8<br />
ZD4<br />
24V<br />
1 8<br />
2 7<br />
3 6<br />
4 5<br />
OB2298<br />
ZD5<br />
15V<br />
!<br />
750K<br />
R1<br />
4 BR1<br />
4A/600V<br />
750K<br />
R2<br />
! !<br />
R21<br />
0Ω<br />
224<br />
C26<br />
C4<br />
221/50V *<br />
R44<br />
P6KE200A<br />
D9<br />
FR107<br />
3<br />
103/1KV<br />
120uF/400V *2 222/1KV<br />
2<br />
47K C21<br />
R28<br />
C20A C20 C19 D2<br />
N1/N5 4<br />
1N5408<br />
R52<br />
3<br />
47Ω<br />
C9 OPEN<br />
C8<br />
R12 100p<br />
0Ω R7<br />
47Ω<br />
D4 R42<br />
D3<br />
1Ω1<br />
C17 LL41448 C18 FR107 1<br />
10uF/50V 22uF/50V<br />
N6<br />
LL4148<br />
D8<br />
75 R9<br />
1<br />
N1<br />
2<br />
N3<br />
4<br />
T2<br />
AOTF20N60<br />
R10 ! Q5<br />
33<br />
!<br />
!<br />
N2<br />
1K R11<br />
T2102/100V<br />
C5<br />
9<br />
5 6<br />
D5<br />
<strong>SB</strong>360<br />
C16<br />
100uF/10V<br />
R37<br />
2K4<br />
90V~264V ER39<br />
R25<br />
22Ω<br />
6<br />
C12<br />
100pF/1KV<br />
R29<br />
0.13Ω<br />
R13<br />
10Ω<br />
100<br />
R28<br />
T1<br />
200V<br />
ZD1<br />
OPEN<br />
3.6V<br />
ZD7<br />
a<br />
5<br />
!<br />
T1<br />
R27<br />
1K<br />
222/250V*2<br />
C6 C7 R14<br />
33Ω<br />
D6<br />
MBR30150CT<br />
9<br />
8<br />
N6<br />
12<br />
R15<br />
33Ω<br />
N7<br />
10<br />
C34<br />
223/50V<br />
C24<br />
2200uF/35V<br />
222/250V*2<br />
C11 C10<br />
D7<br />
MBR30150CT<br />
L7<br />
2.2uH<br />
C25<br />
2200uF/35V<br />
C13<br />
102/50V<br />
1000uF/10V<br />
C30<br />
B<br />
4<br />
3<br />
C32<br />
223/50V<br />
On/Off<br />
C22<br />
680uF/35V<br />
L5<br />
1.1uH<br />
L6<br />
1.1uH<br />
C23<br />
680uF/35V<br />
!<br />
IC4<br />
PC-17L1CB<br />
3.3V/1.5A<br />
C27 C31 ZD2<br />
223/50V*2<br />
1<br />
2<br />
ZD8<br />
36V<br />
30V/1W<br />
C28 C33<br />
223/50V*2<br />
2K7<br />
R44<br />
R34<br />
10K<br />
1<br />
2<br />
GND<br />
R30<br />
680<br />
R32<br />
82K<br />
5K6<br />
R33<br />
ZD3<br />
30V/1W<br />
27V<br />
ZD6<br />
R35<br />
100K<br />
R48<br />
10K<br />
1K R49<br />
D11<br />
LL4148<br />
R38<br />
10K<br />
680<br />
R31<br />
C29 473/50V<br />
IC5<br />
3<br />
431 2.5V R36<br />
4K22<br />
-24V<br />
R47<br />
100<br />
ZD9<br />
27V<br />
C36<br />
104<br />
R50<br />
1K<br />
*<br />
10K<br />
R40<br />
Q1<br />
3906<br />
C35<br />
104<br />
3.3V/1.5A<br />
100<br />
R41<br />
*<br />
-24V<br />
+24V<br />
GND<br />
Q4<br />
MMBT3904LT1<br />
a<br />
331<br />
4<br />
!<br />
IC3<br />
1<br />
C3<br />
1000/50V<br />
OPEN<br />
3<br />
2<br />
PC-17L1CB<br />
Q2<br />
MMBT3904LT1<br />
C37<br />
104/1000V<br />
21
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