Related Manuals for Warwick WA600
Summary of Contents for Warwick WA600
- Page 1 WARWICK SERVICE MANUAL BASS AMPLIFIERS WA600 F a m i l y O w n e d • S o l a r P o w e r e d • S u s t a i n a b l y M a n u f a c t u r e d i n a G r e e n E n v i r o n m e n t...
- Page 3 Troubleshooting Depending on what is the problem with device, you should perform a few electronic tests in proper order to solve your problem. Each time when one of tests is failed, you should exchange or repair necessary parts, run again that test that was failed before and, if this time test is approved, connect all device parts back together and try if unit is now working properly.
- Page 4 Sound is sometimes disappearing: 1. Try to use different instrumental cable and/or different guitar. 2. Try to move jack plug while it’s inserted in preamp jack inputs (passive and active) and listen if sound depends on cable movement. If it does then preamp needs to be exchange. 3.
- Page 5 Disassembling of amplifier 12 screws are holding top chassis of WA600 Inside of the amp 7 screws (3 on the bottom of chassis) are holding pre- Potentiometer knobs and switches nuts removed amp with front chassis Preamp board Chassis without front preamp board...
- Page 6 Power amp with metal board removed Backboard Preamp board and backboard Chassis with transformer, soft start board and metal board for power amp Transformer with soft start board...
- Page 7 Amplifier tests 1. Transformer test Necessary tools: voltmeter (AC), ohmmeter 1. Make sure that you are using proper voltage for testing transformer 2. Disconnect power amp board from transformer 3. Connect power cable, turn on the power switch 4. Measure AC voltage between red cables and black cable.
- Page 8 5. Power supply test 1. Make sure that you are using proper voltage for testing transformer 2. Disconnect backboard and preamp board. 3. Check the fuses F2A, F3A with ohmme- ter. When fuse is broken exchange it only with same type (2A/250V). Do the same with F4A, F5A (8A/250V).
- Page 9 3. Power amp test Necessary tools: sine wave generator, oscilloscope 1. Disconnect backboard and preamp board 2. Connect speaker output to the power amp board 3. Connect external signal generator (suggested setting: sine wave 1kHz/0V) to the input of power amp (pin marked on yellow is input, pin marked on red is GND).
- Page 10 4. Preamp test Necessary tools: external power supply (symmetrical ±15V) with current meter (or additional current meter), oscilloscope, sine wave generator, 6.3mm male jack plug with cable 1. Connect preamp board with backboard using ribbon cable 2. Connect your external power supply to backboard.
- Page 11 5. FAN test Necessary tools: hot air gun, voltmeter 1. Connect power supply and transformer. 2. Connect power cable, turn on power. 3. Use hot air gun to heat temperature sensor marked on red. After few seconds you should hear FAN speeding up. CAUTION! It is not recommended to use solder iron in that test, it can damage temperature sensor, use only hot air.
- Page 12 List of available electronic spare parts: BC300/WA300/WA600 Preamp PCBA 330*80*1.6 double side board FR-4(blue oil white word)，1oZ,A01 WA600 Power amp PCBA+mains board 256*248*1.6MM FR4 2OZ with Heat sink WA600 backboard PCBA A01 single side 173*112*1.6MM CEM-1 2OZ J15 blue oil white word Cable for Power amp PCB footprint: CON1A 5P PH=2.54mm L=180MM UL1533 #26*1C+S+UL1007#24*3PCS...
- Page 13 Technical data 1. Power amp and power supply...
- Page 14 2. Block schematic...
- Page 15 3. Backboard...
- Page 18 D I N 1 8 0 0 1 I S O 5 0 0 0 1 Phone: +49 (0) 37422 / 555 - 0 • Fax: +49 (0) 37422 / 555 - 9999 • E-Mail: info@warwick.de Check us out on: Branches: SHANGHAI/P.R.China•DÜBENDORF/Switzerland•PRAHA /Czech&SlovakiaRepublic•WARSAW/ Poland•HAILSHAM / GreatBritain•NEW YORK / USA...