Laney_LG12_Service_Manual电路图.pdf

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1、www.laney.co.uk Service InformationService Information LG12 RadioFans.CN 收音机爱 好者资料库 1 1 2 2 3 3 4 4 5 5 6 6 7 7 8 8 DD CC BB AA 1 Steelpark Road Coombs Wood Halesowen UK 1 10W GUITAR AMPLIFIER 93493 16/05/200614:33:50 9349_3.Sch Title: Size:Number: Date: Original File: Revision: SheetofTime: A3 www.

2、laney.co.uk Industrial Estate West SK1 PHONEJACK2 SK2 PHONEJACK2 SK3 PHONEJACK2 U1B TL072 - + U1A TL072 U2B TL072 - + U2A TL072 + - U3 TDA2030 10K R3 10K R6 2k7 R5 220k R1 2k7 R4 10k R2 100k R8 100k R7 100n C1 150p C2 47n C3 ca nca noa SW1A cb ncb nob SW1B 1M R10 1K R9 470R R11 1N C6 22uF C7 2u2 C5

3、D4 1N4148 D3 1N4148 4k7 R12 47k R13 22k R16 4k7 R18 12k R14 33nF C10 100p C13 10n C11 1n C14 10k R15 3k3 R17 3n3 C23 220n C12 220n C16 22klin VR4 100klog VR2 2k2Lin VR3 100klog VR5 100klin VR1 3k3 R25 3k3 R28 1k R27 1k R29 47k R30 1r 0.5W R20 100k R19 2u2 C15 100n C19 33p C181uF C22 D6 1N4004 D5 1N4

4、004 0.13r 2W5 R24 47n C26 100r 0.5W R26 220k R21 D2 1N4148 D1 1N4148 +10V-10V G G G 470p C4 G G 2u2 C9 G G G Treble Bass Mid Volume G G Mute Line Input +12V -12V D7 1N4148 D8 1N4148 +10V -10V G G G G G +12V -12V T1 T8 Red+ Black- G Phones T3 T2 T4 FUSE F1 Mains Switch Mains In Black(Brown) Green/Yel

5、low White (Blue) Chassis Transformer Primary AC Line(Live) AC Input (Neutral) Mains fuse F250mA L (115V) T125mA L(230V) D12 1N4004 D10 1N4004 D9 1N4004 D11 1N4004 D13 LED red 2K2 R31 220r 0.5WR22 220r 0.5WR23 100uF C20 100uF C21 1000uF C24 1000uF C25 +10V -10V -12V +12V CD/Line In Gain 100n C17 Thes

6、e items not on pcb P1 P2 0.47uF C8 G +10V -10V -10V +10V FP Flame proof resister Must only be replaced with same type and rating Indicates safety critical component Must only be replaced with approved type FP FP FP CN: C4 FROM 150pF TO 470pF RadioFans.CN 收音机爱 好者资料库 LG12 SPARE PARTS LIST Laney Model

7、No. LG12 100V006192 120V006190 230V006186 51017 SwitchPower005560 100-120V005528 220-240V007169 Front10052 Back10053 Jack SocketStereo005098 9349007003 VR1/2100K Lin 6mm Spline004071 VR2/5100K Log 6mm Spline004062 VR32K2 Lin 6mm Spline004063 VR422K Lin 6mm Spline004061 SwitchSW12P2W Push Switch00501

8、7 10009 005628 1501-0008 10059 1007170 2002009 3001708 007098 007099 SPARES ITEMDESCRIPTIONPART No. 5600-001122-1 10W 120V Mains Transformer 5600-001123-1 10W 230V Mains Transformer 6 4 Ohm 10W Guitar (HBYD160-1) Mains Transformer5600-001126-1 10W 100V Mains Transformer Loudspeaker SPST Mini Rocker

9、Switch Mains FuseT250mA 20mm Spiral Wound T125mA 20mm Spiral Wound 1/4 Jack Socket - Standoff Type - Stereo CornerPlastic Type Plastic Type PCBs10W Guitar Amplifier PCB Complete Small Laney Badge (100mm) Pots Badge Mains LeadBuilt in Control KnobSmall Chicken Head HandleLG Black Strap Handle FeetScrew on Rubber Feet Output / Safety Critical Device TDA2030 Audio Amp IC 1000uF 25V Radial Capacitor 220R 5W Wire Wound Resistor Cabinet Minus LoudspeakerCarcass minus L/Speaker LG12 ManualLG12 User Manual RadioFans.CN 收音机爱 好者资料库