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

Fault fl ow chart 2.5
Power supply
PCB1
A/V Board
PCB2 Hard discCodec
HD unit
Module 998
2
W1
W
3
W
7
W
8
W
Voltage Voltage
Voltage
Voltage
Video
Audio
I3C
Fault symptom:
- TV: OK
- V.Tuner: OK
- HD: Fault
Possible causes:
- HD unit
- Connection to HD unit
Check HD statu
s
- - - - - - - -
Enter HD menu
Select source “Hard
Disc”
- - - - - - - -
OSD “startin
g up”
No communication to
HD unit
Replace A/V board
PCB2
Replace HD unit
Module 998
Check cable
connection to
HD unit
OK?
Reestablish
connection
Replace HD unit
No
Yes

2.6 Fault fl ow chart
Confi rm the HDR 1
is functioning OK
- - - - - - - -
HDR 1 function
Fault symptom:
- HDR 1 display - no or missing light
Possible causes:
- No power
- Display board failure
Check that the
Mains supply is
connected and
applied
- - - - - - - -
Mains supply applied
Connect
Mains supply
Check cable W5 is
OK?
- - - - - - - -
Cable connection
Reconnect cable W5
Fuse on PCB1 OK?
- - - - - - - -
Fuse on PCB1
Replace fuse on PCB1
Replace Display board
PCB3
- - - - - - - -
Display board
Check 5v_SB at X11
pin 1
- - - - - - - -
5V standby supply
Replace power supply
board, PCB1
No
Yes
Replace Display board,
PCB3
- - - - - - - -
Display board
A/V Board, PCB2
Power supply, PCB1
2
W
+5V_SB
Mains Fuse
Display board, PCB3
5
W
+5V_SB
9 9
11
Red/Green
standby led
O200
X1 X11
X12

Fault fl ow chart 2.7
Fault symptom:
- OSD Warning
“The hard disc recorder is overheating
please switch it to standby”
- Standby light = blinking red/green
Possible causes:
- NTC function
- NTC PCB defect
- W6 cable to NTC PCB defect
- FAN function
- FAN defect
- FAN circuit defect
Check that cable W6
is OK?
- - - - - - - -
NTC cable connection
Reestablish
connection
Replace / connect a
new NTC PCB (PCB7)
- - - - - - - -
NTC PCB
Replace A/V board,
PCB2
- - - - - - - -
A/V board defect
Visual check of FAN
FAN operating?
- - - - - - - -
FAN
No
Yes
Check that cable W4
is OK?
- - - - - - - -
FAN cable connection
Reestablish
connection
No fault in FAN
Check voltage supply
on A/V board X10 pin
1 - 2
8V: normal operation
12V: increased speed
8.5V: no load
- - - - - - - -
FAN supply
Replace A/V board
PCB2
- - - - - - - -
A/V board defect,
FAN circuit
Replace FAN
- - - - - - - -
FAN defect
A/V Board, PCB2
Power supply,
PCB1
2
W4 W
NTC, PCB7
6
W
+5V_A
NTC_VNTC
2
1
X4
X12 X10
+12V
FAN_level
uPH8_FAN_IN
FAN
1
2
3
DC/DC
+5V_A
Vref
Vntc
FAN_out
FAN_in
Microprocessor, PCB6

2.8

Adjustments
3.1
Adjustments and confi guration
Navigation
m
p
sel
ect menu
Activate
GO
activate selected menu
Return
STOP
return to the previous menu
Exit
EXIT
exit service mode
Adjust
l
l l
n
change valu
n change valun
e or mode
Picture adjustments
Adjustment in picture adjustment is not necessary.
All values are factory adjusted for optimum performance.
If settings are lost, insert default values.
Current values
BRIGHTNESS 13
COLOUR 13
CONTRAST 20
R-DR 32
G-DR 32
B-DR 32
BLACK OFFSTE R 6
BLACK OFFSET G 8
Geometry adjustments
No geometry adjustments are necessary.

3
.2 Adjustments
HDR TUNER MENU
TUNER SYSTEM B/G ON
L OFF
M OFF
D/K OFF
I OFF
AFC OFF
LOW TUN RANGE 45
HIGH TUN RANGE 860
LOWER BAND LIMIT 170
UPPER BAND LIMIT 450
VHF-1 CONSTANT 162
VHF-2 CONSTANT 148
UHF CONSTANT 49
TUNER TAKEOVER 26
IF ADJUST 33
AFC STATUS O/L
FM SOUND ADJUST 14
CN SOUND OFF
LOAD FREQUENCY 45
RESET TO DEFAULT
AFC ON
AFC is always on during normal operation.
AFC OFF
AFC OFF is obtained by
1. Set AFC OFF
If AFC = OFF – change AFC to ON – OFF, AFC is now deactivated.
If AFC = ON – change AFC to OFF – ON – OFF, AFC is now deactivated.
2. Set LOAD FREQUENCY to required frequency.
This function is only necessary if the HDR tuner is to be adjusted manually.
TUNER TAKEOVER, IF ADJUST & FM SOUND ADJUST
Data is transferred from EEPROM on AV BOARD to 6IC6.
Manual adjustment is not required.
Select RESET TO DEFAULT.
Press
GO.
The data are transferred.
The menu shifts to SERVICE MENU.

Final check after repair
Final check after repair
The fi nal check after repair, describes the activities that are needed to ensure the
product will be returned in perfect condition to the customer.
The contents are:
- Insulation test / AC leakage test.
- Check product information.
- Restore the setup and check connections.
- Final cleaning of the product.
Insulation test
Each HDR 1 must be insulation tested after having been dismantled. Make the test
when the set has been reassembled and is ready to be returned to the customer.
Flashovers must not occur during the testing procedure!
Make the insulation test as follows:
Short-circuit the two pins of the mains plug and connect them to one of the
terminals of the insulation tester. Connect the other terminal to ground on the
aerial socket.
NOTE!
To avoid damaging the HDR 1 it is essential that both terminals of the insulation
tester have good contact.
Slowly turn the voltage control of the insulation tester until a voltage of
2.5 kV ac and max. 10mA is obtained.
Maintain that voltage for one second, then slowly turn it down to 0 V ac again.
Monitor information
The scope of this check is, to ensure the following:
- The product has maintained the correct identity.
- The error code register is cleared.
Procedure
Enter Service menu – A/V board – H8 information.
Check the serial number is correct.
Clear the error code.
Select error code and press
GO
.
Final check after repair
3.3

Customer setup
Remember to inform the customer of any changed that has been made in the user
setup, due to procedures in the service manual, such as Connections, Replay,
Recording quality, etc.
Restore the product to the customer setup.
SETUP
Parental lock code
Groups
Recording quality
Recording duration
Connections
Replay
Menu language
Tuning
Clock
Check all sources are working correctly
- Check that picture and sound on all sources are working correctly.
Clean the product
Never user alcohol or other solvents to clean any part of the HDR 1.
Wipe dust off the surfaces using a dry, soft cloth. Remove grease stains or persistent
dirt with a soft, lint-free, fi rmly wrung cloth, dipped in a solution of water
containing only a few drops of mild detergent, such as washing-up liquid.
3
.4
Final check after repair

SERVICE MENU
AV BOARD
HDR TUNER
CODEC MENU
AV BOARD MENU
H8 INFORMATION
IC INFORMATION
SERVICE COUNTERS
PICTURE ADJUSTMENTS
GEOMETRY ADJUSTMENTS
M2 INFORMATION
TIMER RECORDING INFO
RESET TO DEFAULT
VIDEO OUT
IC INFORMATION
MSP
HIP
HOP
02040A24
11
14
SERVICE COUNTERS
POWER ON
PLAY (DAYS) 1
RECORD
REPLAY
(DAYS) 0
(DAYS) 2
(DAYS) 1
PICTURE ADJUSTMENTS
CURRENT VALUES
BRILLIANCE 13
COLOUR 13
CONTRAST 20
R-DR 32
G-DR 32
B-DR 32
BLACK OFFSET R 6
BLACK OFFSET G 8
GEOMETRY ADJUSTMENTS
BLANKING 0
H-PH 30
H-AM 30
V-AM 30
V-SL 30
V-SH 20
V-SC 20
EW-P 30
EWUC 30
EWLC 30
EW-T 30
H-PA 30
BOW 30
EHT 20
V-ZO 20
VSCR 20
V-WA 20
H-CENTER 20
TUNER SYSTEM B/G ON
L
M
D/K
I
OFF
OFF
OFF
OFF
AFC
LOW TUN RANGE
HIGH TUN RANGE
LOWER BAND LIMIT
UPPER BAND LIMIT
VHF-1 CONSTANT
VHF-2 CONSTANT
UHF CONSTANT
TUNER TAKEOVER
IF ADJUST
AFC STATUS
FM SOUND ADJUST 21
ON
45
860
170
450
162
148
49
27
63
O/H
TV SERVICE MENU
M2 INFORMATION
HW
92.00a
M2
M2 BOOT 92.00a
STB TABLES 03.00a
STB TIMER 0
CN SOUND OFF
LOAD FREQUENCY 210
RESET TO DEFAULT
TIMER RECORDING INFO
PROGRAMMED:
TV1 0107 2050 2100 VPT
EXECUTED:
TV1 0107 2050 2100 VPT
ERROR:
NO ERROR
PROGRAMMED:
SAT 0207 2050 2100 MENU
EXECUTED:
SAT 0207 2050 2100 MENU
ERROR:
NO ERROR
PROGRAMMED:
TV3 0207 2150 2300 VPT
EXECUTED:
TV3 0207 2150 2300 VPT
ERROR:
SIGNAL MISSING
H-PH 30
H8 INFORMATION
06 IC3 AP SW 1.0
06 IC2 IOP SW 22.0
TYPE NO. 4640
ITEM NO. XXXXXXX
SERIAL NO. XXXXXXXX
ERROR: HDR . . . . . . . . .
HDR . . . . . . . . .
HDR . . . . . . . . .
HDR . . . . . . . . .
HDR . . . . . . . . .
HDR
TV AVL LAST . . . . .
VAUX AVL LAST . . . . .
RESTORE USER SETTINGS
RESET TO DEFAULTS
OUTPUT RGB ON
VIDEO OUT
10 IC207 2.550
INTERNAL TEMPERATURE 34C
RESTORE RECORDINGS
CLEAR HDD
HDD VALUES
RESET TO DEFAULT
CODEC MENU
STANDARD Q. REC QUALITY 40
HIGH Q. REC QUALITY 85
HDD SIZE (GB) 76
HDD VALUES
R-DR 32
Service menu
Service m
enu
3.5

3
.6
Service mode
Service Mode
On page 3.1 see an overview of the Service Mode menus, and operation in Service
Mode.
AV BOARD MENU
The PICTURE ADJUSTMENTS and GEOMETRY ADJUSTMENTS lines are described in
the section on adjustments.
H8 INFORMATION
- Software version numbers
- Type, item and serial numbers
- Latest 6 HDR errors
- Latest AVL error from the TV and VAUX sockets
ERROR:HDR
Shows the latest 6 HDR 1 errors (e.g. IIC bus errors) and display them on the screen.
The 5 latest HDR 1 errors are shown as error codes and displayed with the month/
date (four digits) as provided by the clock. The most recent error is displayed at the
top.
XX-YZ (XX = IIC address
Y = IIC bus 1 or bus 2
Z = any IIC bus segment A/B/C/D)
AVL error codes from the TV and VAUX sockets
. . . . No error registered
TI Transmission impossible
TD Data link tied down
After repair of an error that has triggered the display of an error code, the error code
has to be deleted. This is done by pressing
GO
in the H8 INFORMATION menu.
IIC bus error
An IIC bus error means that the communication on the bus fails when the
microcomputer tries to communicate with the address in question.
In most cases this means that the addressed IC is defective but the defect could
also be in one of the components surrounding the IC or in other components on
the bus. Adresses in connection with IIC bus errors:
Error code Module IC Function BUS
22 2 D21 SDA6000 M2 Processor IIC-1
8A 2 D23 TDA9321H Colour decoder & IF (HIP) IIC-2A
8C 2 D25 TDA9330H Video processor (HOP) IIC-2A
80 2 D3 MSP3415G (type 4640) Sound processor IIC-2B
84 2 D3 MSP3415G (type 4642) Sound processor IIC-2B
88 2 D3 MSP3415G (type 4641) Sound processor IIC-2B
A2 2 D17 PCF8563TF Real-time clock IIC-2C1
C0 2 TU1 CTF5510 Tuner IIC-2A
A4 2 D1 M24C02 AV Board EEPROM IIC-2C
60 5 CODEC FEP IIC-2B