Bang & Olufsen HDR 1 User manual

HDR 1
Type 4640, 4641, 4642
Service Manual
English
German, French, Italian, Spanish, Danish and Dutch versions
are available in the Retail System
This Service Manual must be returned
with the defective parts/back-up suitcase !

CONTENTS
Survey of modules .................................................................. 1.1
How to service ........................................................................ 1.2
Fault flow chart ......................................................................... 2
Adjustments and configuration ............................................ 3.1
Final check after repair .......................................................... 3.3
Service menu .......................................................................... 3.5
Service mode .......................................................................... 3.6
Codec menu ............................................................................ 3.9
ServiceTool ............................................................................ 3.11
Remove cover ......................................................................... 4.1
Replacement of modules .............................................. 4.2 - 4.5
Specification guidelines for service use ................................ 5.1
Type survey ............................................................................. 5.2
Wiring diagram ......................................................................... 6
Available parts ........................................................................... 7

Power supply board
A/V board
Display board
FAN
MAINS SCART Tuner
2
1
3
DATA
(Mini jack)
P7
P4
P11
10
TU 1+2
P3
P13
Y/C Input
P2
P12
P1
P2
P1
P5
P8
HD unit complete 998
HD Drive
4Codec board
5
P13
NTC
P10
HD power
µProcessor
board
6
7
PCB1 Power supply board
PCB2 A/V board
PCB3 Display board
PCB7 NTC
998Module HD unit complete, incl. PCB4, PCB5, PCB7
Survey of modules 1
.1

How to service
Strategy
The HDR 1 is to be serviced in the customer’s home.
The static-protective fi eld service kit must always be used when the product is
disassembled or modules are being handled.
The repair involves replacement of the HD unit, module(s) or fan.
The replaced modules must be returned for repair at Bang & Olufsen, Module
Repair Department.
Fault description and error codes must be returned with the replaced parts.
Use the Module Repair form or the form in the Retail Order System, Exchange
Module.
The EEPROM 6IC6 must be transferred to the A/V board in the HDR 1, hereby
maintaining the customer settings.
The ServiceTool is required in several service situations, e.g. update of SW.
Refer to the ServiceTool for full description of features and operation.
Preparations before service
Always remember to download the latest version of the Service Manual.
Fault description and error codes must be returned with the replaced parts.
Use the Module Repair form or the form in the Retail Order System, Exchange
Module.
Fault explanation and demonstration
Before troubleshooting is initiated, let the customer demonstrate the fault, if
possible.
Error code
The error code contains data that may be used for repairing the module(s) and
must be returned with the module(s).
Handling the error code
1. Take a note of the error code, for example on the Module repair form.
2. Use the error code when troubleshooting.
3. Return the error code, either on the Module Repair form or in the Retail system.
4. Before returning the HDR 1 to the customer, clear the error code.
Recommended tools for service
B&O ServiceTool.
White gloves.
Soft lint-free cloth.
IC-pliers. (Part no. 3629145).
1
.2 Ho
w to service

Handling and cleaning
Static electricity
Static electricity may damage the product.
Static-protective fi eld service kit.
A static-protective fi eld service kit must always be used when the product is
disassembled or modules are being handled.
Follow the instructions in the guide and use the ESD-mat for both old and new
modules.
Please note:
When mains voltage on the product is required, remove the connection between
the product and the ESD-mat.
The chassis or modules must always be connected to the static-protective fi eld
service kit or placed in an ESD-proof bag.
Symbol of safety components
When replacing components with this symbol, the same type has to be used, also
the same values for ohm and watt.
The new component is to be mounted in the same way as the replaced one.
Lithium battery
WARNING
Short-circuit and overcharging of some types of lithium batteries may result in a
violent explosion.
Transport and handling
It is recommended to:
- use the product cover when transporting the product.
- do not move the HDR 1 when it is operating.
Cleaning
Please refer to the chapter “Final check after repair” or the User’s guides.
STATIC ELECTRICITY
MAY DESTROY THE
PRODUCT
ESD
How to service 1
.3

1
.4

Fault fl ow chart 2.1
HD unit
Display
Splitter Tuner
IF +
DEMOD
Switch
Video
processor
Encoder
Y/C
A/V Board
BeoVision
Power supply
5V SB
+12V
+40V
+8V
-8V
+3.3V
+5V
32V
40V
2.5V
3.3V
CVBS
CVBS
RGB
+5V
Standby
Timer
Record
Ant out
RGB
Y/C
Scart
Ant in
Power supply board
A/V Board
Display board
FAN
MAINS
SCART Tuner
02
01
03
DATA
(Mini jack)
P7
P4
P11
P10
TU 1+2
P3
P13
Y/C Input
P2
P12
P1
P2
P1
P5
P8
HD unit complete 998
HD Drive
04 Codec board
05
P13
NTC
P10
HD power
Processor
board
06
07
(X1)
(O200)
(X12)
(X8) (X10) (X5) (X11) (X4) (X7)
(X10)
(X13)

2.2 Fault fl ow chart
HDR 1
Fault symptom:
- TV: Fault
- V.Tuner: OK
- HD: OK
Possible causes:
- Splitter defect
- Splitter circuit on A/V board
Check connection
Ant out -> TV
OK?
Reestablish
connection
Replace A/V board
PCB2
Fault symptom:
- TV: Fault
- V.Tuner: Fault
- HD: OK
Possible causes:
- Splitter defect
- Splitter circuit on A/V board
Check connection
Antenna -> Ant input
OK?
Reestablish
connection
Replace A/V board
PCB2
No
Yes
Fault fl ow chart

Fault fl ow chart 2.3
Fault symptom:
- TV: Fault
- V.Tuner: Fault
- HD: Fault
Possible causes:
- Power supply defect
- A/V board defect
Mains supplied
Apply mains
Check fuse
OK?
Replace fuse
Check output from
power supply O200
- - - - - - - -
Power supply (01)
Replace power supply
PCB1
Replace A/V board
PCB2
No
Yes
A/V Board
PCB2
Power supply
PCB1
2
W
+12V+12V
+5V
+5V
+3.3V
+5V_A
+5V_D
+2.5V
+3.3V
+3.3V
+2.5V
+40V
+40V +32V
+8V
+8V
-8V
-8V
+32V
+5V_SB+5V_SBMains Fuse O200

2.4 Fault fl ow chart
Fault symptom:
- TV: OK
- V.Tuner: Fault
- HD: Fault
Possible causes:
- Connection HDR 1 - TV failure
- Power supply failure
- A/V board failure
Check connection
HDR 1 -> TV
- - - - - - - -
Scart connection
Reestablish
connection
Replace Power supply
PCB1
Replace A/V board
PCB2
Fault symptom:
- TV: OK
- V.Tuner: Fault
- HD: OK
Possible causes:
- Power supply failure
- A/V board failure
Check power supply
output
OK?
- - - - - - - -
Power supply, PCB1
Replace Power supply,
PCB1
Replace A/V board,
PCB2
No
Yes
Check power supply
output
OK?
- - - - - - - -
Power supply, PCB1
A/V Board
PCB2
Power supply
PCB1
2
W
+12V+12V
+5V
+5V
+3.3V
+5V_A
+5V_D
+2.5V
+3.3V
+3.3V
+2.5V
+40V
+40V +32V
+8V
+8V
-8V
-8V
+32V
+5V_SB+5V_SBMains Fuse O200