Harman JBL GX-A422SI, Service Manual

Page 1: ...y 2015 Harman Consumer Group Inc Rev 1 0 03 2015 8500 Balboa Boulevard Northridge California 91329 OWNER S MANUAL 2 SCHEMATICS DIAGRAMS 18 LAYOUT DIAGRAMS 22 SET BLOCK DIAGRAM 16 PACKAGING INSTRUCTION...

Page 2: ...GX A422SI power amplifier OWNER S MANUAL...

Page 3: ...o not attempt the installation yourself Instead please ask your authorized JBL car audio dealer about professional installation INSTALLATION WARNINGS AND TIPS IMPORTANT Disconnect the vehicle s negati...

Page 4: ...t of backseat passengers or shifting cargo in the trunk Mount the amplifier so that it remains dry never mount an amplifier outside the car or in the engine compartment MOUNTING THE AMPLIFIER NOTE You...

Page 5: ...pe of screw terminals for power and speaker connections This type of terminal is easy to use and allows the easy connection of large gauge wire To use the connectors use a Phillips screwdriver to loos...

Page 6: ...e within 18 46cm of the battery s terminal Do not install the fuse in the holder at this time 3 Route this wire to the amplifier s location and connect it to the amplifier s 12V terminal Be sure to us...

Page 7: ...on the speaker IMPORTANT Make sure the and bare wires do not touch each other or the other terminal at both the amplifier terminals and speaker terminals Touching wires can cause a short circuit that...

Page 8: ...t The Crossover Controls on page 10 for information about setting the amplifier s controls USING THE SPEAKER LEVEL INPUTS If your source unit doesn t have line level outputs you can use the included s...

Page 9: ...provides a single high power channel for a subwoofer Minimum speaker impedance 4 ohms Connect the subwoofer to the RL and RR terminals NOTE You can connect two 2 ohm subwoofers in series to maintain t...

Page 10: ...on below NOTE Use a Y adapter to connect the source unit to the amplifier s left and right input jacks L L R R Source Unit Y Adapter Subwoofer Output See Set The Crossover Controls on page 10 for info...

Page 11: ...lifier to a pair of large full range speakers 6 x 9 or larger that can handle significant bass and you are not using a subwoofer in the system set the Crossover Filter switch to the FLAT full range po...

Page 12: ...n one amplifier repeat Steps 3 4 for all remaining amplifier Level controls SET THE BASS BOOST When you re using the amplifier in bridged mode to power a subwoofer the Bass Boost switch can provide 12...

Page 13: ...and speaker connections have been properly made Check that the amplifier s Level controls are not turned all the way down counter clockwise Check that the vehicle audio system s source unit s volume...

Page 14: ...enter midpoint positions Sound is too quiet even with the vehicle audio system s source unit volume all the way up Check that the amplifier s Level controls are not turned too low See Set The Input Le...

Page 15: ...THD 110W x 1 THD N at rated power 1 Signal to noise ratio rated output 4 ohms 93dB Effective damping factor 4 ohms 50 Frequency response 1dB 20Hz 20kHz 1dB Maximum input voltage 20V Maximum input sens...

Page 16: ...Power Amplifier input selector variable crossover 1 2 3 4 HI IN Pitch 2 5mm A bass boost 45Hz 0 12dB B5 INPUT SENS 0 2V 4V crossover 80Hz 12dB oct B1 B2 B3 HP LP pass B4 LP FLAT B6 4R out 2 4 R input...

Page 17: ...1 GX A422SI 4 2 2 channel or...

Page 18: ...220R R14B 220R R19B 22K C24B CC471 2 3 1 8 4 U5A 4560 6 7 5 8 SW2B SW2P3T C11D CL333 C23D CL333 R17B 82K R29B 43K R18B 220R 6 5 7 U4B 4560 R15B 220R FL HI 80Hz LP 80Hz FL LP 80Hz FL FULL 6 5 7 U3B 45...

Page 19: ...4 U2PA 4560 6 5 7 U2PB 4560 R40 4 7R R39 10K R38 4 7R R37 10K C60 104P R16P 2 2K RB6 13K R171P 12K C82 47uF 25V C79 104 R20P 47K R138P 2K C81 104 C84 104 C124P 104 R200P 2K R46 220R RB4 22K R61P 100K...

Page 20: ...104 C233 47P 1 2 R245 11K R251 220R 0 5W VCC VCC R270 1K R268 10K R269 1K R275 33K R266 3K LCH RCH R133 33K R233 33K VCC Q111 718 Q211 718 Q212 688 Q112 688 Q102P STN3904S Q103P STN3904S R158P 6K8 C14...

Page 21: ...1 2N3906 Q2 2SC1815 6 5 7 U1B LM393 1 5V R60 10K R67 47K R59 2 7K R58 7 5K R57 10K R61 47K R62 2 2K R63 2 2K Q3 2SC1815 C29 47uF 16V to 7 7 TL 494 15 to7 7 TL494 13 C39 104 A 62 1 5V R9 560K NTC1 20K...

Page 22: ...PCB LAYOUT DIAGRAM FRONT END BOARD TOP VIEW...

Page 23: ...PCB LAYOUT DIAGRAM FRONT END BOARD BOTTOM VIEW...

Page 24: ...PCB LAYOUT DIAGRAM MAIN BOARD TOP VIEW...

Page 25: ...PCB LAYOUT DIAGRAM MAIN BOARD BOTTOM VIEW...

Page 26: ...End Board Amplifier Board Rear Panel Front Panel Logo Plate Heat Sink Decorative Plate Description Qty Part Number Item Screw PM3 4MM Screw PT3 8MM Screw 3 6MM Screw Mica Sheet SET MECHANICAL EXPLODED...

Page 27: ...Packaging Instructions Part Number Description QTY Main Unit S N Label EPE Foam Bag PE Foam PE Foam Cable Screws User Manual Beauty Box Carton Box PE Bag Label PE Bag...

Page 28: ...3000147 Capacitor 101 50V 0603 NPO 5 26 020113000068 Capacitor 101 50V 0805 NPO 5 27 020123000164 Capacitor 104 50V 0603 X7R 10 28 020133000071 Capacitor 105 25V 0603 X5R 10 29 020133000041 Capacitor...

Page 29: ...8 010103000342 Resistor 6 8K 1 10W 5 0603 79 010103000535 Resistor 6 8K 1 8W 1 0805 80 010103001157 Resistor 6 8K 1 4W 1206 1 81 010103001060 Resistor 7 5K 1 8W 0805 1 82 010103000761 Resistor 8 2K 1...

Page 30: ...103000044 Resistor 1 2K 1 10W 1 0603 135 010103000185 Resistor 3K 1 10W 1 0603 136 010103000412 Resistor 1 2K 1 8W 5 0805 137 020603000018 ceramic capacitor 104 100V 20 138 020733000027 Metal film cap...

Page 31: ...M 175 JD0101000025 Spring gasket D6 6 D4MM 1 0MM 176 JD0201000040 Mica plate 22 18 0 1MM 177 LS0101000104 screw BM 4 14 178 BZ0302000017 PE bag 90 60 0 05MM 179 BZ0202000391 pearl cotton L245 W90 H85m...