JBL PSW-D112 Service Manual

[Page 1] JBL PSW-D112

JBL Consumer Products Inc. 250 Crossways Park Drive Woodbury, N.Y. 11797 1-800-336-4JBL in the USA A Harman International Company Rev E 7/2001 PSW-D112/DPS-12 Powered Subwoofer SERVICEMANUAL ...

[Page 2] JBL PSW-D112

SAFETY INFORMATION Warning Caution Leakage/Resistance Check List of Safety Components Requiring Exact Replacements (all parts POWER AMP PCB except TR2) C6 (Rev0) 4.7uf 100V 80/-20% Electrolytic redial NP C6 (Rev1) 4.7uf 100V 80/-20% Electrolytic redi...

[Page 3] JBL PSW-D112

3 Amplifier/Subwoofer PSW-D112/DPS-12 TABLE OF CONTENTS SAFETY INFORMATION .......................................................2 TABLE OF CONTENTS.........................................................3 GENERAL SPECIFICATIONS ......................

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DETAILED SPECIFICATIONS LINE VOLTAGE Yes/No Hi/Lo Line Nom. Unit Notes US 120vac/60Hz Yes 108-132 120 Vrms Normal Operation EU 230vac/50-60Hz Yes 207-264 230 Vrms Normal operation, MOMS required Parameter Specification Unit Test Limits Conditions Not...

[Page 5] JBL PSW-D112

Limiter (yes/no) yes THD at Max. Output Power 10 % functional ck. Maximum Output Power Maximum THD as a result of limiting. Features Phase Switch (yes/no) YES — functional ck. Volume pot Taper (lin/log) LOG — functional ck. Input Configuration �...

[Page 6] JBL PSW-D112

1. Power LED - Will illuminate when the unit is turned on with the main power switch. This light will be RED when the unit is plugged in and not receiving a signal; when the PSW-D112 receives a signal, the light will cycle to GREEN. If no signal is r...

[Page 7] JBL PSW-D112

OPERATION Crossover Adjustments High-Pass Control If you hooked up your subwoofer as shown in Speaker Connection 4 on page 9. you also have the capability of adjusting the high-pass frequency. The High-Pass control determines the frequency at which t...

[Page 8] JBL PSW-D112

SPEAKER CONNECTIONS 1) If your receiver/amplifier has no subwoofer outputs or preamp outputs for the left, center and right channels. See Figure 1. 2) If your receiver/amplifier has subwoofer outputs or preamp output jacks for the left and right chan...

[Page 9] JBL PSW-D112

3a) If your receiver/amplifier has a single (mono) subwoofer output or LFE output, connect the output using a “Y”-connector (not included) to both Left or Right line-level inputs on the subwoofer. Plug the single male end of the “Y” connector...

[Page 10] JBL PSW-D112

TROUBLESHOOTING If you used the high-level (speaker) inputs and there is no sound from any of the speakers, check the following: n Receiver/amplifier is on and a source is playing. n Powered subwoofer is plugged in. n Check all wires and connections ...

[Page 11] JBL PSW-D112

NOTE: When testing the PSW-D112/DPS-12 amplifier, a load must always be connected to the output terminals, whether the woofer, or a 4 to 8 ohm resistive load. ...

[Page 12] JBL PSW-D112

12 Amplifier/Subwoofer PSW-D112/DPS-12 PSW-D112/DPS-12 TESTING PROCEDURE (REV0 ONLY) A. Power Amp Section 1. Resistance Check Resistance from O/P of the module to GND should be >1M (NO LOAD) Resistance from V+ of the module to V- of the modul...

[Page 13] JBL PSW-D112

13 Amplifier/Subwoofer PSW-D112/DPS-12 3. Low-Pass -Set up Set Generator at 100mV@100Hz Signal to Low level input Measure voltage at speaker output -Voltage measurement Low-Pass Pot Setting Output CW 12.2V CCW 1.2V 4. High-Pass -Set up ...

[Page 14] JBL PSW-D112

14 Amplifier/Subwoofer PSW-D112/DPS-12 PSW-D112/DPS-12 POWER AMP MODULE TESTING FLOW CHART (REV0 ONLY) ...

[Page 15] JBL PSW-D112

JBL Incorporated 250 Crossways Park Dr. Woodbury, New York 11797 (516) 496-3400 Service Bulletin Service Bulletin JBL9903 Rev1 - February 2001 This is considered a Minor repair To: All JBL Service Centers Models: PSW-D110, PSW-D112, ARC SUB 8, ARC SU...

[Page 16] JBL PSW-D112

JBL Incorporated 250 Crossways Park Dr. Woodbury, New York 11797 (516) 496-3400 Service Bulletin Service Bulletin JBL2001-02 - February 2001 This is considered a Minor repair To: All JBL Service Centers Models: PSW-D112 rev0*, DPS-12, PSW-D115 Subjec...

[Page 17] JBL PSW-D112

17 Amplifier/Subwoofer PSW-D112/DPS-12 CABINET EXPLODED VIEWS SCREWS (12) SCREWS (8) JBL Logo #200512 FEET #200582 CABINET NOT FOR SALE 12" WOOFER #200700 AMPLIFIER ASSEMBLY SCREWS (12) SCREWS (8) FOOT PART 1 #200670 FOOT PART 2 #200870 CABINET ...

[Page 18] JBL PSW-D112

18 Amplifier/Subwoofer PSW-D112/DPS-12 AMPLIFIER EXPLODED VIEW 5 5 4 4 3 3 2 2 1 1 A A B B C C D D E E F F G G PSW-D112/DPS-12 Rev0 (PSW-D112 shown here) Amplifier Assembly Exploded View shown here 13 14 12 17 15 11 6 1 9 7 2 5 16 4 8 10 S64AMI ...

[Page 19] JBL PSW-D112

19 Amplifier/Subwoofer PSW-D112/DPS-12 PSW-D112/DPS-12 MECHANICAL PARTS LIST Ref. # Part Number Description Qty PSW-D112/DPS-12 1 70302 Knob, 3 pcs on DPS-12, 2 pcs on PSW-D112 2 70312 Faceplate PSW-D112 2 70311 Faceplate DPS-12 3 70316 Amp PCB suppo...

[Page 20] JBL PSW-D112

20 Amplifier/Subwoofer PSW-D112/DPS-12 PACKING EXPLODED VIEWS DPS-12 PSW-D112 WARRANTY CARD OWNER'S MANUAL #200730 (120V) #331993-001 WARRANTY CARD #331993-001 OWNER'S MANUAL #200830 (120V) TOP FOAM PAD #200722 TOP STYROFOAM RAILS (2) PER B...

[Page 21] JBL PSW-D112

21 Amplifier/Subwoofer PSW-D112/DPS-12 PSW-D112/DPS-12 Rev0 PCB (Component Side) Rev0 - Component Side Trace Layer 5 5 4 4 3 3 2 2 1 1 A A B B C C D D E E F F G G ...

[Page 22] JBL PSW-D112

22 Amplifier/Subwoofer PSW-D112/DPS-12 PSW-D112/DPS-12 Rev0 PCB (Solder Side) Rev0 - Solder Side Trace Layer as viewed through the board 5 5 4 4 3 3 2 2 1 1 A A B B C C D D E E F F G G ...

[Page 23] JBL PSW-D112

23 Amplifier/Subwoofer PSW-D112/DPS-12 Rev1 - Component Side Trace Layer 5 5 4 4 3 3 2 2 1 1 A A B B C C D D E E F F G G PSW-D112/DPS-12 PCB (Component Side) PREAMP Rev1, PWRAMP Rev1 ...

[Page 24] JBL PSW-D112

24 Amplifier/Subwoofer PSW-D112/DPS-12 Rev1 - Solder Side Trace Layer as viewed through the board 5 5 4 4 3 3 2 2 1 1 A A B B C C D D E E F F G G PSW-D112/DPS-12 PCB (Solder Side) PREAMP Rev1, PWRAMP Rev1 ...

[Page 25] JBL PSW-D112

PSW-D112/DPS-12 ELECTRICAL PARTS LIST (Rev0) Preamp Board Low Pass 40436 20kW 0.25W 10% Quad Lin Pot 1 Level 40402 5kW 0.25W 10% Single Linear Pot 1 High pass 40450 20kW 0.25W 10% 3-gang Tandem Lin Pot 1 Capacitors Safety C1 30502 100nF 50V 20% Mono-...

[Page 26] JBL PSW-D112

Resistors R1 40706 10M 0.25W 5% carbon film 1 R3 40458 43.2k 0.25W 1% metal film 1 R4 40417 47k 0.25W 5% carbon film 1 R4a/b/c 40105 0.1 0.5W 5% metal film 3 R5, 6 40420 1k 0.25W 5% carbon film 2 R7 40449 3.3k 0.25W 5% carbon film 1...

[Page 27] JBL PSW-D112

Revisions/changes PSW-D112 Power Amp PCB Designator Early Rev Later Rev R5 43.2K 56.2K R6 4.7 47 R15 100K None R34 4.7K 10K Res Addition None 220k - solder from J2 to R34 on component side of PCB (part# 40407) Cap Addition None 220 nf 250V - solder a...

[Page 28] JBL PSW-D112

Preamp Board Capacitors C1, 2 30707/04 200uF 200 radial 50V 0.2 BP Electrolytic 2 C3, 4, 5, 6 30101 220pF 400 axial 50V 0.2 mono ceramic 4 C7 0.0R Jumper 400 axial 50V 1 C8, 9 30517 68n 400 axial 50V 0.05 mono ceramic 2 C10, 11, 12, 13 30504 100nF 40...

[Page 29] JBL PSW-D112

29 Amplifier/Subwoofer PSW-D112/DPS-12 PSW-D112/DPS-12 INTEGRATED CIRCUITS U1, U2 - (LM324 TL064) Quad Op Amp U3, U4 - (TLO 82) Dual Op Amp 15 26 37 4 14 10 13 9 12 8 11 12 43 - - - - + + + + OUT 4 OUT 1 IN 4 - IN 1 - IN 4 + IN 1 + GND V+ IN 3 + IN 2...

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31 Amplifier/Subwoofer PSW-D112/DPS-12 PWS-D112/DPS-12 SCHEMATIC 2 of 3 (Rev0) ...

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* * Later revs value = 47 ohms 00468 ...

[Page 33] JBL PSW-D112

33 Amplifier/Subwoofer PSW-D112/DPS-12 PWS-D112/DPS-12 PREAMP SCHEMATIC Rev1 U1 U2 U1 LM324 U1 LM324 R16 38k3 C9 68n C8 68n C7 0r Jump R15 Not Used R17 169k R14 68k1 R35 137k R13 33k2 R9 2k7 C5 220pF C3 220pF C2 200uF C1 200uF 8 10 9 + + + + - -- - -...

[Page 34] JBL PSW-D112

34 Amplifier/Subwoofer PSW-D112/DPS-12 PWS-D112/DPS-12 POWERAMP SCHEMATIC Rev1.0 BR RECT RS604 R40 1k R41 1000k U1 TL 064 C41 1uF D12 1N 5242B D14 1N 4148 C42 100uF R43 1000k D11 1N 4148 U1 TL 064 R44 100k R46 1000k R47 10k Q1 2N 5457 R48 10k D13 1N ...

[Page 35] JBL PSW-D112

35 Amplifier/Subwoofer PSW-D112/DPS-12 PWS-D112/DPS-12 POWERAMP SCHEMATIC Rev1.1 BR RECT RS604 R40 1k R41 1000k U1 TL 064 C41 1uF D12 1N 5242B D14 1N 4148 C42 100uF R43 1000k D11 1N 4148 U1 TL 064 R44 100k R46 1000k R47 10k Q1 2N 5457 R48 10k D13 1N ...