DVD 22 (serv.man7) - Harman Kardon Audio Service Manual (repair manual). Page 6

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Right hand man tips
DVD 22
Symptom
Location
Action
Issue
Place
1> On and Off problems. When power key is pressed, the unit turn 
On momentarily and immediately back to "Stand-By".
POWER SUPPLY board
Defective Q1 leaky (2N5551) and 
zener diode ZD1 open (16 volts).
Service information
Theo, Convoy 07/2004
2> WMA audio playability  up to V9 
Service information 
HCI
3> blocks during reproduction
software
upgrade to V0429 or higher
Service information 
HCI
4> trouble with reading DVD discs with multiple angle option  
software
upgrade to V0429 or higher
Service information 
HCI
5> can't use navigator menu made by
"InterVideo WinDVD Creator"
software
use other editor then InterVideo 
WinDVD Creator
Service information 
HCI
6>unit does not turn on 
Front board
glue of the smd components on 
the front panel 
to be conductive, resolder the 
SMD component. 
menho
7>DOESN'T START UP CORRECT FROM STAND-BY
smps board
CHANGE / CHECK  EC19 IN POWER 
SUPPLY
Service information
Sweden Patrick, October 2004
8>LOCKED, READING OR NO DISPLAY
smps board
CHECK CAPACITOR IN PSU, EC19
Service information
Sweden Patrick, October 2004
9>U502 flash ic change from 29LV800 to 26LV800 
do to  29LV800 Obsolete 
main board
in case u502 needs to be 
changed from  29LV800 to 
26LV800 Add a pull up resistor 
as described in service bulletin 
2004-03 
Service bulletin 2004-003
HCGI okt 04
10>mecha do not read disc. 
main board
in case the laser are dead 
check 5V supply at Q712 
if 5V missing change Q711 and 
Q712. Q712 need to change to 
DTA114E and not the 8050
Service information 
HCGI okt 05
Harman Consumer Group
DVD22 - DVD22B
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