Bang & Olufsen BeoVision 1 User manual

BeoVision 1 (Update III)
BeoCenter 1 (Update II)
Type 863x
Type 852x
On-site service guide
English, German, French, Italian, Spanish, Danish, Dutch
This On-site service guide must be
returned with the defective parts/
back-up suitcase !
ABO-CENTER v/HENRIKSENS ELEKTRONIK

Contents
1.1 Contents
2.1 English
3.1 Deutsch
4.1 Français
5.1 Italiano
6.1 Español
7.1 Dansk
8.1 Nederlands
9.1 Illustrations
10.1 Disassembly/Assembly
11.1 Main chassis in serviceposition
12.1 Replacement of main chassis
13.1 Replacement of PCB10 (BV1) / Sound/DVD chassis (BC1)
14.1 Replacement of other modules
15.1 Survey of modules
Caution:
Do not under any circumstances, place the BeoVision 1/BeoCenter 1 lying
on the contrast screen.
Instead, place it as illustrated below.
1.1
There is no Brief operation guide in this On-site service guide.
Instead an english version of the user guide is enclosed the
back-up suitcase.
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Contents, English 2.1
#1 Introduction
#2 Repair of BeoVision 1/BeoCenter 1
#3 Fault flow chart
#4 Removal of the cloth front
#5 Removal of the contrast screen and cleaning the television
#6 Adjustments after replacement of main chassis
#7 Check after replacement of main chassis or modules
#8 Service Mode and Flash-programming
9.1 Illustrations
10.1 Disassembly/Assembly
11.1 Main chassis in serviceposition
12.1 Replacement of main chassis
13.1 Replacement of PCB10 (BV1) / Sound/DVD chassis (BC1)
14.1 Replacement of other modules
15.1 Survey of modules
Survey of symbols:
Make a shortcircuit between the marked points, usually for discharging
e.g. a picture tube
Push with finger, in arrow direction
Disconnect internal plug
Connect internal plug
Disconnect mains plug
Connect mains plug
Disconnect aeriel or other external plug
Connect aeriel or other external plug
Loosen/remove or fasten/install screw
Dashed arrow. Push/pull e.g. PCB, chassis etc. in arrow’s direction
Filled arrow. Refer to page/chapter for more information, e.g. 14.1 PCB20,
if mounted:
Turn to 14.1 PCB20 and remove or install PCB if such is mounted
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2.2 Introduction, English
Warning
Static electricity may destroy the product!
A static-protective field service kit must always be used when replacecement of the
modules takes place. Follow the instructions in the guide and use the ESD mat
area for both the new and old modules.
Please note:
When mains voltage on the TV is required, remove the connection from the TV to
the ESD mat.
#1 Introduction
This On-site service guide explains how to service the BeoVision 1/BeoCenter 1 by
replacing the modules. In the following you will find repair tips, description of how
to replace the different parts and a description of how to adjust after servicing.
When the following symbol occurs; ➢it is a cross-reference to a photo or an
illustration in the back of this On-site service guide.
The chapters in the On-site service guide are named for example #2 Repair of
BeoVision 1/BeoCenter 1. They are listed numerically.
Please note:
This On-Site Service guide must always be returned with the defective parts.
#2 Repair of BeoVision 1/BeoCenter 1
Before troubleshooting is initiated, let the customer explain and demonstrate the
fault, if possible.
Afterwards, check:
- that all cables are plugged in correctly
- that the mains voltage is connected, and switched on
- that an aerial signal is connected
- that all external sources such as VTR, DVD etc. are connected correctly and
switched on. Use the enclosed IR-blaster if necessary in order to check IR-signals to
the external sources.
When troubleshooting is initiated, please refer to #3 Fault flow chart. The fault
should fit into one of the 5 main groups.
- System functionality
- DVD/CD (BeoCenter 1 only) / Camcorder
- Picture
- Sound
Follow the arrows from each box, answering YES or NO, to locate the fault. The
back cover may have to be removed and the main chassis placed in service position.
See 10.1 Disassembly/assembly and 11.1 Main chassis in service position for
further information.
If measurements are needed, please refer to the chapter measurements, placed
behind #3 Fault flow chart.
When a voltage specification is given in the fault flow chart, a value within ±10-20%
of this is OK.
STATIC ELECTRICITY
MAY DESTROY THE
PRODUCT
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Introduction, English 2.3
If nothing else is mentioned, the fault flow chart applies for both BeoVision 1 (BV1)
and BeoCenter 1 (BC1).
When replacing a module, remember to disconnect the mains voltage. Carry out
the replacement, and reconnect the mains voltage. Then check if the fault is
rectified.
When replacing the main chassis remember to transfer optional modules, such as
Modulator etc. to the new main chassis. Please do also remember carefully
remove the EEPROM 6IC6 (by using IC-pliers (3629145)) from the defective chassis
and place it in the new chassis.
An extra help in troubleshooting is reading out the error codes.
Please refer to #8 Survey of Error Codes for further information.
After repair of BeoVision 1/BeoCenter 1, always remember to follow #6 Adjustments
after replacement of main chassis and/or #7 Check after replacement of main
chassis or modules.
Important note concerning theft protection, if activated:
Before servicing the product, please ask the customer to deactivate the theft
protection, if possible.
- If the theft protection is active during service, please note that exchanged modules
must always be returned to Bang & Olufsen for service. The exchanged modules
will immediately, after mains on, be registred to this product and this registration
can only be changed at Bang & Olufsen, Struer DK.
- If the back-up suitcase is not being returned to Bang & Olufsen after use, but
refilled by e.g. the dealer or workshop with new modules, please read the following
instruction.
When exchanging modules to see whether they are defective or not, it is important
to use the Service code, to avoid registration of the modules for this specific product.
When the TV is turned on, use Service code, pressing lfor 3 seconds.
A Mastercode menu appears, and the Service code, which is 11111, must be
entered.
It is then possible to exchange modules to see whether they are defective or not.
If not, the registration of the module will not take place until for 12 hours, time
enough to replace with the old module again.
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2.4 Fault flow chart, English
Remote Control
Try with a new
Beo4
OK?
Replace main
chassis
OK?
Replace PCB11/
PCB58 (BC1)
Replace batteries in
old Beo4
OK?
Replace Beo4
No standby light
Check mains
voltage. Check if
mains switch on
the TV is on
OK?
Turn on mains
voltage or turn
mains switch on
the TV on
Replace main
chassis
OK?
Replace PCB11/
PCB58 (BC1)
Stand function
Check settings of
stand
OK?
Change to correct
settings
Replace PCB92
OK?
Replace main
chassis
System-
functionality
No
Yes
#3 Fault flow chart
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Fault flow chart, English 2.5
Connect, if
possible, a new
ML-cable between
the products
OK?
Check last ML error
in service menu. Is
the statement NO?
Replace
main chassis
OK?
The TV should be
taken to a
workshop for repair
Replace the
ML-cable
OK?
Switch off both
audio- and video
products. Wait one
minute and then
switch on. Check
for correct
“options” OK?
MasterLink
problem
check if possible
that ML-audio
master and/or ML-
link products are
ok
No
Yes
Leave the TV on for
10 minutes. If error
recurs, replace
PCB51
OK?
Replace
PCB51
OK?
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2.6 Fault flow chart, English
DVD/CD
(BeoCenter 1
only)
Camcorder
Fault on DVD
picture and/or
sound
Replace
sound/DVD
chassis
OK?
Replace main
chassis
OK?
The TV should be
taken to a
workshop for repair
No eject/load of
DVD/CD
Touch LOAD and
measure approx.
0V DC between
1P10p14 and 1P8
(GND) when load
OK?
Replace PCB58
Replace
sound/DVD
chassis
OK?
Replace main
chassis
OK?
The TV should be
taken to a
workshop for repair
No playback of
DVD/CD
Measure approx.
5V DC between
72P500p7 and
72P500p5
OK?
Replace main
chassis
OK?
Replace
sound/DVD
chassis
OK?
Replace main
chassis
OK?
The TV should be
taken to a
workshop for repair
No camcorder
sound and/or
picture
Check connections
to camcorder
OK?
Replace the
defective
connection
Replace PCB11/
PCB58 (BC1)
OK?
Replace main
chassis
OK?
No
Yes
Replace
sound/DVD
chassis
OK?
Replace sound/DVD
chassis (BC1) or bring
the TV to a workshop
for repair
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Fault flow chart, English 2.7
No
Yes
Can focus be
adjusted on focus
potentiometer until
OK?
#6
Poor focus
Adjust the TV by
means of
adjustment guide
OK?
#6
Replace main
chassis
Readjust focus
OK?
The TV should be
taken to a
workshop for
repair
Picture tube may
be defective
Leave the TV on for
10 min. If error
reoccurs, replace
main chassis
OK?
Can picture be
obtained by
adjusting
G2-potentiometer?
#6
No picture
Adjust the TV by
means of
adjustment guide
OK?
#6
Replace main
chassis
OK?
The TV should be
taken to a
workshop for repair
Picture tube may
be defective
Leave the TV on for
10 min. If error
reoccurs, replace
main chassis
OK?
Change to correct
settings
Check colour
settings in service
mode
OK?
No colour(s)
Replace main
chassis
OK?
The TV should be
taken to a
servicecenter for
repair
Picture tube may be
defective
Picture
Check aerial connection
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2.8 Fault flow chart, English
No
Yes
Noise in picture
(TV)
Replace main
chassis
Poor geometry
Can picture be
adjusted by means
of the adjustment/
check guide?
#6
Replace main
chassis
OK?
The TV should be
taken to a
workshop for
repair.
Picture tube may
be defective
Leave the TV on for
10 min. If error
reoccurs, replace
main chassis
OK?
Replace main
chassis
No teletext
No auto contrast
Replace main
chassis
OK?
Replace PCB11/
PCB58 (BC1)
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