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June 1999
LK85 & LK140 Service Manual
LK85 & LK140 Service Manual
Contents
INTRODUCTION ....................................................................................................................................
A
..............................................................................................................................
BOUT THIS MANUAL
R
& D
ETAILER
ISTRIBUTOR
H
OW TO USE THIS MANUAL
INSTALLATION .....................................................................................................................................
I
S
I
MPORTANT
AFETY
NFORMATION
I
.......................................................................................................................................
NSTALLATION
P
..........................................................................................................................................
LACEMENT
POWER-UP PROBLEMS........................................................................................................................
P
OWER UP PROBLEMS
F
......................................................................................................................................
USE BLOWING
PROTECTION (TRIPPING) PROBLEMS .................................................................................................
I
MPORTANT INFORMATION ABOUT
T
– F
RIP PROBLEMS
AULT
STAND-BY PROBLEMS.........................................................................................................................
I
NFORMATION ABOUT THE
S
-
P
T
TAND
BY
ROBLEM
AMPLIFIER & AUDIO PROBLEMS
A
& A
MPLIFIER
UDIO PROBLEMS
DC
...............................................................................................................................11
AT THE OUTPUT
Page1
O
...................................................................................................
BLIGATIONS
......................................................................................................................
............................................................................................................
............................................................................................................................
T
–
RIP
PLEASE READ BEFORE FAULT FINDING ON
T
...............................................................................................................
ABLE
S
-
............................................................................................
TAND
BY FACILITY
.....................................................................................................................
ABLE
........................................................................................................11
...............................................................................................................11
T
RIP PROBLEM
Copyright © 1999 Linn Products Limited. All rights reserved.
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Summary of Contents for Linn LK85
- Page 1 AULT ABLE STAND-BY PROBLEMS............................................. NFORMATION ABOUT THE TAND BY FACILITY ........................TAND ROBLEM ABLE AMPLIFIER & AUDIO PROBLEMS ......................11 & A .......................11 MPLIFIER UDIO PROBLEMS ..........................11 AT THE OUTPUT Page1 Copyright © 1999 Linn Products Limited. All rights reserved.
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Page 2: About This Manual
Service Manual. If a product, which is under warranty, is returned to Linn for repair and the fault is covered in the service manual, Linn may levy a charge and this charge should not be passed to the customer. -
Page 3: Installation
Installation Unpack the product & retain the packing for future transportation. As a Linn retailer, you are responsible for ensuring correct installation of the product. Consult the user manual and read the Placement & Handling information below. Placement Location & Environment Do not locate near electronic products that may transmit RF, such as microcomputers, fax machines, TVs etc, or connect them to the same mains socket as these devices. -
Page 4: Power-Up Problems
– Linn part nos: LK85 230V MCAS 030/230 115V MCAS 030/115 100V MCAS 030/100 LK140 230V MCAS 033/230 115V MCAS 033/115 100V MCAS 033/100 Page4 Copyright © 1999 Linn Products Limited. All rights reserved. Contents... -
Page 5: Fuse Blowing
‘T’ before the rating on the fuse. Correct types are: 100 - 115V 6.3A 220 - 240V 3.15A Fuse blowing May be intermittent Mains surges Consult an electrician or your power company. Page5 Copyright © 1999 Linn Products Limited. All rights reserved. Contents... - Page 6 Fault inside unit, e.g. short See Introduction to Fault but usually constant circuit or similar. Finding section (accessible via Linfo Website - Product Information) for tips on tracing the fault. Page6 Copyright © 1999 Linn Products Limited. All rights reserved. Contents...
- Page 7 – see Introduction to Fault Finding (accessible via Linfo Website - Product Information) for tips on how to do this. This manual deals mainly with LK85/LK140 failures, not so much with failures in other parts of the system.
- Page 8 The above Trip Please note – U100 & U201 monolithics often destabilise the faults have been are only fitted to the LK140 board – repair is not normally ruled out. reliable. Page8 Copyright © 1999 Linn Products Limited. All rights reserved. Contents...
- Page 9 Usually closer to Max sensitivity is preferable and adjust if this causes a problem. The following table contains problems you may encounter with the ‘Stand-by’ facility on the LK85/LK140. Stand-by Problem Table...
- Page 10 10 minutes or 20 minutes is left with no and then tells the unit to go music playing. into stand-by. If it is faulty, it may never give that signal. Page10 Copyright © 1999 Linn Products Limited. All rights reserved. Contents...
- Page 11 The following are some problems you may encounter with the audio output of theLK85 or LK140. It is assumed at this point that it is definitely the LK85 or LK140 that is causing the problem and you have ruled out all other aspects of the system. If you have not – please do so before proceeding.
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