JBL G SUB 10 User manual

JBL Consumer Products Inc.
250 Crossways Park Dr.
Woodbury,N.Y.11797
1 800 336 4JBL in the USA
A Harman International Company
Rev B 4/02
Media Sub
TECHNICAL MANUAL
Single 5.25" Powered Multimedia Subwoofer

1
Powered Subwoofer Media Sub
TABLE OF CONTENTS
FEATURES.....................................................................1
SPECIFICATIONS..........................................................1
MEDIA SUB EXPLODED VIEW ...................................2
DISASSEMBLY PROCEDURES ...................................3
BLOCK DIAGRAM .........................................................4
PCB1&2(vi wing trac lay r through th board) .....5
PCB1&2(vi wing silk-scr n through th board) .....6
PCB 3 (vi wing trac lay r through th board) ............7
PCB 3 (vi wing silk-scr n through th board) ............8
ELECTRICAL PARTS LIST ...........................................9
PACKAGINGEXPLODEDVIEW.................................11
INTEGRATEDCIRCUITDIAGRAMS..........................12
SCHEMATICDIAGRAM..............................................13
FEATURES
nPow r d subwoof r syst m.
n25 watt amplifi r.
nAuto turn-on / turn-off circuitry.
nSubwoof r is magn tically shi ld d for flick r-fr us
n ar comput r monitors.
nBuilt-in l ctronic qualization for prop r fr qu ncy
balanc with sat llit sp ak rs.
nLin l v l st r o output for us with sat llit sp ak rs
that don’t hav a subwoof r output.
SPECIFICATIONS
Sp ak r Syst m...........Sixth band-pass nclosur
Sp ak r Siz ............5.25” woof r
Total Amplifi r Output Pow r ......25Wat10%THD
Input S nsitivity ...........250mV input for full pow r
Fr qu ncy R spons .........40Hz - 150Hz
Input Imp danc ..........10kohms
Signal Output jack ..........Strominiplug jack (1/8")
Signal Input Jacks ..........Strominiplug jack (1/8")
Ext rnal Dim nsions
H ight ..............10.25"
Width ..............7.35"
Dpth..............12"
W ight ..............12.8 lbs.
Ext rnal Dim nsions (m tric)
H ight ..............260mm
Width ..............186mm
Dpth..............305mm
W ight ..............5.8kgs

MEDIA SUB EXPLODED VIEW

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Powered Subwoofer Media Sub
Step 1
Remove the 8 purchase screws (S6) from the rear plate to separate the rear plate and the wood cabinet.
Step 2
Unplug the connector speaker wire from the PC amp assembly.
Step 3
Remove the 4 purchase screws (S5) from the rear plate to separate the rear plate and cover.
Step 4
Remove the power/volume knob from the rear plate.
Step 5
Remove the 4 purchase screws (S2) and nuts (N1) to separate the rear plate and transformer assembly.
Step 6
Remove the 2 purchase screws (S3) from the bracket and the 2 purchase screws (S4) and nuts (N2) from
the IC of STK4024 to separate the rear plate and Amp assembly.
Step 7
Remove the 4 purchase screws (S1) from the driver inside the wood cabinet to separate the wood cabinet
and the driver.
DISASSEMBLY PROCEDURES

BLOCK DIAGRAM

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Powered Subwoofer Media Sub
PRINTED CIRCUIT BOARDS1&2(viewing trace layer through the board)

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Powered Subwoofer Media Sub
PRINTED CIRCUIT BOARDS1&2(viewing silk-screen through the board)

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Powered Subwoofer Media Sub
PRINTED CIRCUIT BOARD 3 (viewing trace layer through the board)

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Powered Subwoofer Media Sub
PRINTED CIRCUIT BOARD 3 (viewing silk-screen through the board)

MEDIA SUB ELECTRICAL PARTS LIST
Part Number Description Qty Reference Designator
Resistors
QAF0250-331 RESISTOR 330 OHM 1/2W 5% CF 1 R136
QAF0250-479 RESISTOR 4.7 OHM 1/2W 5% CF 1 R137
QAF0450-100 RESISTOR 10 OHM 1/4W 5% CF 1 R146
QAF0450-101 RESISTOR 100 OHM 1/4W 5% CF 2 R132 R134
QAF0650-102 RESISTOR 10K OHM 1/6W 5% CF 2 R115 R124
QAF0650-103 RESISTOR 10K OHM 1/6W 5% CF 17 R101 R102 R105 R106 R108 R109 R122 R123
R125 R128 R133 R138 R139 R140 R153 R160
R161
QAF0650-104 RESISTOR 100K OHM 1/6W 5% CF 1 R117
QAF0650-105 RESISTOR 1.0M OHM 1/6W 5% CF 1 R114
QAF0650-152 RESISTOR 1.5K OHM 1/6W 5% CF 3 R126 R147 R149
QAF0650-183 RESISTOR 18K OHM 1/6W 5% CF 4 R110 R111 R112 R113
QAF0650-223 RESISTOR 22K OHM 1/6W 5% CF 2 R151 R162
QAF0650-224 RESISTOR 220K OHM 1/6W 5% CF 1 R120
QAF0650-304 RESISTOR 300K OHM 1/6W 5% CF 1 R158
QAF0650-330 RESISTOR 33 OHM 1/6W 5% CF 1 R127
QAF0650-332 RESISTOR 3.3K OHM 1/6W 5% CF 1 R148
QAF0650-334 RESISTOR 330K OHM 1/6W 5% CF 2 R119 R159
QAF0650-392 RESISTOR 3.9K OHM 1/6W 5% CF 1 R154
QAF0650-393 RESISTOR 39K OHM 1/6W 5% CF 1 R107
QAF0650-394 RESISTOR 390K OHM 1/6W 5% CF 1 R116
QAF0650-472 RESISTOR 4.7K OHM 1/6W 5% CF 1 R156
QAF0650-562 RESISTOR 5.6K OHM 1/6W 5% CF 2 R129 R150
QAF0650-563 RESISTOR 56K OHM 1/6W 5% CF 2 R130 R135
QAF0650-682 RESISTOR 6.8K OHM 1/6W 5% CF 1 R152
QAF0650-821 RESISTOR 820 OHM 1/6W 5% CF 1 R131
QAF0650-824 RESISTOR 820K OHM 1/6W 5% CF 1 R121
QAF0650-103 RESISTOR 10K OHM 1/6W 5% CF 2 R103 R104
Capacitors
PRD1335-220 COND DISC 22 pF 50V 5% 1 C124
PRD3545-101 COND DISC 100 pF 50V 10% Y5P 3 C102 C118 C122
PRD3545-102 COND DISC 1000 pF 50V 10% Y5P 1 C121
PRD3545-104 COND DISC 0.1 uF 50V 10% Y5P 2 C155 C156
PRD3545-331 COND DISC 330 pF 50V 10% Y5P 1 C115
PRD3545-471 COND DISC 470 pF 50V 10% Y5P 1 C114
PRD4965-203 COND DISC 0.02 uF 50V +80-20% 3 C152 C153 C154
PRE3951-101 COND ELECT 100 uF 10V 20% 85'C 2 C103 C116
PRE3951-221 COND ELECT 220 uF 10V 20% 85'C 1 C111
PRE3952-100 COND ELECT 10 uF 16V 20% 85'C 1 C110
PRE3952-101 COND ELECT 100 uF 16V 20% 85'C 2 C112 C128
PRE3952-221 COND ELECT 220 uF 16V 20% 85'C 1 C132
PRE3954-100 COND ELECT 10 uF 35V 20% 85'C 2 C123 C129
PRE3954-221 COND ELECT 220 uF 35V 20% 85'C 2 C117 C120
PRE3955-109 COND ELECT 1 uF 50V 20% 85'C 3 C113 C119 C133
PRE3955-478 COND ELECT 0.47 uF 50V 20% 85'C 1 C108
PRE3955-479 COND ELECT 4.7 uF 50V 20% 85'C 1 C101
PRM3737-104 COND MYLAR 0.1 uF 100V 5% 1 C157
PRM3737-152 COND MYLAR 0.0015uF 100V 5% 1 C158
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Powered Subwoofer Media Sub

Part Number Description Qty Reference Designator
PRM3737-273 COND MYLAR 0.027 uF 100V 5% 4 C104 C105 C106 C107
PRM3747-104 COND MYLAR 0.1 uF 100V 10% 1 C126
PRD3545-101 COND DISC 100 pF 50V 10% Y5P 2 C150 C151
PVE3954-332 COND ELECT 3300 uF 35V 20% 2 C130 C131
Semiconductors
RAD4001-001 RECTIFIER 1N4001 1A 35VRMS 1 D103
RAD4148-001 DIODE SW 1N4148 3 D101 D102 D104
RAZ0859-070 DIODE ZENR 5.6-5.9V 0.5W HITACHI HZ6B-2 1 ZD102
RAZ0859-081 DIODE ZENR 11.9-12.4V 0.5W HITACHI HZ12A-2 1 ZD101
RAN0945-001 XISTR NPN 2SC945P NEC 6 Q101 Q102 Q103 Q106 Q107 Q108
RHD0202-001 RECTIFIER BRIDGE RS202L 1 BD101
RHI0740-001 IC 14 PIN TL074CN SGS QUAD OP-AMP 1 IC101
RHI4032-001 IC 15 PIN STK4032II SANYO 40W POWER AMP 1 IC103
RHI4558-001 IC 8 PIN JRC4558D JRC DUAL OP-AMP 1 IC102
Miscellaneous/Mechanical
APE0083-A33 CNTL SW AY CNTL JACK PCB ASSY
CCN1500-035 CONNECTOR B10B-XH-A 10 PIN PST BSE TOP P=2.5 RB102A
CCN3962-002 CONNECTOR 2 PIN CL3962WVO PST BSE TOP P=3.96 CN501
MRL2212-003 RELAY OJE-SS-112DM 12V DC 37.5 mA RL101
CFC2557-001 FUSE CLIP DIA5xL20mm FUSE F101
20565-120BB WIRE 22 GA 120 mm BLACK 4-4 UL 1007 P104A TO P104B
20565-122BB WIRE 22 GA 120 mm RED 4-4 UL 1007 P103A TO P103B, P105A TO P105B
XHP0001-001 L PIN P106 P107
APE0083-B33 CNTL SW AY CNTL JACK PCB ASSY
CJM9380-028 PHONE JACK D3.5 JY3542-01-030 JK101 JK102
DSS0545-003 HOUSING LED HOUSING LEK2-4.5 5 DIA H=4.5 mm LD001
KEM0001-001 LED 5 DIA RED/GREEN LD001
MRR0103-001 CNTL ROTRY 10K OHM B SIGNAL WITH SWITCH ON/OFF
5003A2501B0 COND WIRE 10 COND 250 mm RB102B TO RB102A
APE0083-C22 X'FORM PCB X'FORM PCB ASSY 100V E035-1X (HI)
APE0083-C33 CNTL SW AY CNTL JACK PCB ASSY
GSE0073-001 BRACKET PCB BRACKET PCB-BRACKET
H120301-308 SCREW T3.0x0.5pxL8.0 mm PAN HEAD BLACK PCB TO BRACKET
BPA0013-000 COVER
BPK5027-000 VOL. KNOB E-035 (JBL)
DBU0002-001 BUSHING AC LINE BUSHING PIN GOOD 4RF-5 AC CORD BUSHING
GAL0032-001 REAR PLATE AC 120V~60Hz
H021401-312 SCREW M3.5xP1.4xL12 mm PAN HEAD BLACK REAR TO COVER
H060404-310 SCREW M3.5xP0.6xL10 mm BLACK WAFER HEAD REAR COVER TO TRANFORMER-4
H060404-321 SCREW M3.5xP0.6xL21 mm BLACK WAFER HEAD REAR TO IC-2
H120301-308 SCREW T3.0x0.5pxL8.0 mm PAN HEAD BLACK REAR TO BRACKET
HNI1482 K-NUT #6-32 NICKEL WITH TOOTH WASHER TRANSFORMER-6
IVE0025-001 SPONGE 85x65mm COVER
IVE0027-001 SPONGE L185xW8xT2mm COVER-1, BETWEEN REAR PLATE AND AC
CORD-0.5
IVE0083-001 SPONGE L82xW37xT4mm TRANSFORMER AREA
IVS0003-001 SPONGE L60xW10xT1mm VOLUME PCB-1
IVS0004-002 FELT L20xW10xT0.9mm VR PCB TO COVER SLOT-4
KSA2100-002 FUSE 1A 250V SLOW 5x20mm UL/CSA/T-MARK F101
TTH1200-112 PWR TRANS EI-66 120V 20W
47455-D52 LINE CORD SPT-2 1980mm POL BLK-UL DBLE INS 10
Powered Subwoofer Media Sub

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Powered Subwoofer Media Sub
INTEGRATED CIRCUIT DIAGRAMS

13
K
J
IHGFEDCBA LMN0
1
2
3
4
5
6
7
8
P
8
7
6
5
4
3
2
1
9
LMAB CDEFGH I JK
9
0P
N
Media Sub Schematic Diagram
POWERED SUBWOOFER Media Sub
IC103
STK4024 II
Test voltages are printed in orange.
voltages are
displayed in boxes. Other voltages
shown are for due
to the Auto On/Off function.
Operationa Mode
Stand-by Mode
0.0V
0.0V
0.0V
0.0V
0.0V
0.0V
0.0V
0.0V
-20.1V
20.1V
20.4V
-1.3V
-1.3V
-22.4V
22.2V
-22V
-1.35V
-1.34V
-22.6V
22.4V
5.6V
5.61V
0.0V
0.0V
5.6V
5.6V 5.6V
5.6V
5.6V
5.6V
5.6V
5.6V
5.6V
5.6V
5.6V 5.6V
5.6V
5.6V
5.6V
5.6V
5.6V
5.6V
-1.2V -1.27V
-21.8V -21.7V
-13.5V
21.9V
0.5V
-22.4V
AC
17.7V
AC
17.7V
22.3V
11.0V
1.3V
0.47V
7.14V
2.47V
2.48V
0V
5.9V
6.10V
6.3V 7.25V
4.8V
1.36V
12.1V
12.1V
12.1V 12.1V

IHGFEDCBA
8
7
6
5
4
3
2
1
9
ABCDEFGH I
Media Sub Schemati
POWERED SUBWOOFER
5.6V
5.61V
0.0V
0.0V
5.6V
5.6V 5.6V
5.6V
5.6V
5.6V
5.6V
5.6V
5.6V
5.6V
5.6V 5.6V
5.6V
5.6V
5.6V
5.6V
5.6V
5.6V
+11.0V
1.3V
0.47V
7.14V
2.47V
2.48V
0V
5.9V
6.10V
6.3V 7.25V
4.8V
1.36V
12.1V
12.1V
12.1V 12.1V

K
J
ILMN0
1
2
3
4
5
6
7
8
P
LMIJK
9
0P
N
b
Schematic Diagram
Media Sub
IC103
STK4024 II
Test voltages are printed in orange.
voltages are
displayed in boxes. Ot er voltages
s own are for due
to t e Auto On/Off function.
Operationa Mode
Stand-by Mode
0.0V
0.0V
0.0V
0.0V
0.0V
0.0V
0.0V
0.0V
-20.1V
+20.1V
+20.4V
-1.3V
-1.3V
-22.4V
+22.2V
-22V
-1.35V
-1.34V
-22.6V
+22.4V
-1.2V -1.27V
-21.8V -21.7V
-13.5V
+21.9V
+0.5V
-22.4V
AC
17.7V
AC
17.7V
+22.3V