Philips Mz7/22 Power Supply

Is there somebody out there who knows about the power supply for the Philips mz7/22? I had the problem originally with cd section displaying the message "disc not finalized",(radio was ok.)so I removed the cd section for further inspection,hoping to spray the laser eye since the unit had not been used for a long time,but when I reconnected the cd section I lost the radio too.I found out by accident,that by moving connector 1211 at the F6 board going to the audio amp. module.the radio will return.I verified the problem 2 to 3 times and then radio went out and the display as well.Checking the power supply for the 3rd time I found all voltages ok except +5v6 coming from the reg. 7201 which supplies the microproc.. The input to the 7201 pin1 comes from +c (18v.),but resistor 3204 and fuse 1299 dont exist,so my question is this, where is the 17.2 v supplying pin1 of the 5.6v reg. 7201 comes from?I have the schematic, for the supply,but its a bit confusing,since many parts are being missing,like for instance the "low power standby circuit" not existing in this radio.I have spent a good deal of time on this radio and I see I dont go anywhere with it,since I believe a have an intermittent problem along a possible cold joint too. Any help from you fellow techs will be greatly appreciated.SP