Linn LK260, Руководство по обслуживанию

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Copyright © 2000 Linn Products Limited. All rights reserved.
Paul O'Neill
S rvice Manual for LK2 Series of Pow m s Service Manual for LK2 Series of Power Amps
Covering LK2(60), LK275 & LK280
For the purposes of this manual, we will refer to the three types as LK260,
LK275 & LK280. The term LK2 will be used as an “umbrella term”,
covering all three types, i.e. the LK2 series.
CONTENTS
INTRODUCTION .................................................................................................................................... 2
A
BOUT THE
LK2 S
ERIES
......................................................................................................................... 2
H
OW TO DIFFERENTIATE BETWEEN TYPES OF
LK2....................................................................................... 2
A
BOUT THIS MANUAL
.............................................................................................................................. 3
R
ETAILER
& D
ISTRIBUTOR
O
BLIGATIONS
................................................................................................... 3
S
PARE
P
ARTS
A
VAILABILITY AND
LK2
REPAIR
............................................................................................ 3
H
OW TO USE THIS MANUAL
...................................................................................................................... 3
IMPORTANT SAFETY INFORMATION & INSTALLATION ADVICE ......................................................... 4
M
AINS CONNECTIONS
............................................................................................................................. 4
L
ETHAL
V
OLTAGES
................................................................................................................................. 4
P
LACEMENT
.......................................................................................................................................... 4
PROCEDURE FOR DISMANTLING AND RE-ASSEMBLING THE LK2..................................................... 5
FAULT FINDING ON THE LK2 – HINTS & TIPS ...................................................................................... 9
POWER-UP PROBLEMS – FAULT TABLE............................................................................................10
W
ON
’
T POWER UP
.................................................................................................................................10
W
ON
’
T SWITCH OFF
...............................................................................................................................10
F
USE BLOWING
.....................................................................................................................................11
AMPLIFIER PROBLEMS – FAULT TABLE ............................................................................................13
N
O OUTPUT
.........................................................................................................................................13
T
RIP
(
PROTECTION
)
PROBLEMS
...............................................................................................................15
D
ISTORTION
/
CRACKLING ETC
................................................................................................................16
DC
AT OUTPUT
.....................................................................................................................................17