Philips Repair Tips

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Make	Model	Symptom	Problem
PHILIPS	GR2.1	List of the microprocessors used in gr2.1	List of the microprocessors used in gr2.1 dev. code: vsl2-4.1 supply code: u111 description: mono (eng,fin,dan,swe,nor,spa) crystal: 4.19 service code: 4822 209 63947
PHILIPS	GR2.1	List of the microprocessors used in gr2.1	List of the microprocessors used in gr2.1 dev. code: fsl1-4.0 supply code: u211 description: stereo (eng,ger,fr,it,du,port) crystal: 4.19 replacement: 4822 209 31209 change x-tal 1702 by a 6 mhz version (4822 242 70392 enter the service menu and set
PHILIPS	GR2.1	List of the microprocessors used in gr2.1	List of the microprocessors used in gr2.1 dev. code: fsl2-4.0 supply code: u209 description: stereo (eng,fin,dan,swe,nor,spa) crystal: 4.19 replacement: 4822 900 10569 change x-tal 1702 by a 6 mhz version (4822 242 70392) enter the service menu and
PHILIPS	GR2.1	Hum on standby untill serial number qg079207	A production change has been introduced changing the value of r3673 from 4.7k to 4.64k, and r3674 from 1.1k to 1.05k. in cases of specific complaint, this change can also be applied as a service solution. position new value code number r3673 4.64k
PHILIPS	GR2.1	Hum in loudspeaker in stand-by.	In some cases the spread of the resistors r3673 and r3674 causes a too high +16v in stand-by and this provoke a hum in the ls. to solve this problem the 2 resistors have to be changed: r3673 into 4k64 1% 4822 051 54642, r3674 into 1k05 1% 4822 051
PHILIPS	GR2.1	How to enable/disable "child lock"	Press "menu" button on remote control. when the menu appears on the screen, you select "special features" (this expression is language dependent) within "special features", the "child lock" can be enabled or disabled.
PHILIPS	GR2.1	Hotel fashion	Hotel mode receivers employing the gr2.1 chassis are equipped with a "hotel mode" facility. in this mode certain functions are restricted. to engage the hotel mode proceed as follows: first set the volume to the maximum level required when in hotel m
PHILIPS	GR2.1	Green coloured stripes in picture.	Replace ic7307 (tda4660; 4822 209 63108), on main panel
PHILIPS	GR2.1	Euro module connections	Euro module connections. stereo models based on the gr2.1 chassis have two scart sockets, one of which is coloured orange and is located on a pluggable sub-panel referred to as the euro module. if the euro module`s three wiring connectors are unplugged f
PHILIPS	GR2.1	Error nicam, no tuning on vhf channels.	Replace processor ic7708 software version mr4.0 by mr5.2 (4822 209 31209).
PHILIPS	GR2.1	Does not take (new) channels into memory	Iic bus were low in 15 s intervals. replacing nicam unit helps.
PHILIPS	GR2.1	Does not start from cold situation.	Replace resistors r3610 (15b). r3624 (330k) and r3625 (560k r3624 330k 1w 5% tol 4822 053 10334 r3625 560k 0.5w 5% tol 4822 053 21564 r3610 (4822 050 25601) 10r (safety) 4822 052 10109 add resistor of 560r in parallel with c2660 4822 050 25601 in
PHILIPS	GR2.1	Distorted picture during high contrast scenes (picture breathing)	A production change has been applied to the east/west circuit to maintain the picture shape during scenes with high contrast transients, i.e. between sky and earth. position old new code number r3526 82k(100k) 47k
PHILIPS	GR2.1	Dark screen, led blinks	If the led obeys rc, up is ok. fault in power supply or tda4680 (ic7309; 4822 209 63733). the problem occurs in sets produced in the beginning of the series. there is no problem if the software is mr5.
PHILIPS	GR2.1	Crackling noise in left loudspeaker.	When after replacing r3207 (r3214 for nicam) by a special version code 4822 116 83726 you still hear the cracking noise it can be helpful to resolder the 6 components of the amplifier stage arround 7232 (7217 for nicam).
PHILIPS	GR2.1	Changing option codes.	It has been discovered that changing the option code for nicam (from on to off or vice versa) will not effect this change. if this problem occurs, the option code can be changed as follows: change option code for nicam as requested. change option code fo
PHILIPS	GR2.1	Buzz on sound in mono sets only	The buzz on sound on vcr playback can be reduced by replacing the sound quadrature coil 5035 on the sound if module. (4822 157 63077). realign the new coil for optimum sound quality.
PHILIPS	GR2.1	Black picture with unsynchronised teletext bars	Measure on pin 47 ic7800 (saa5246); if period time is smaller then 1 micro second, replace crystal 1800 (4822 242 81191).
PHILIPS	GR2.1	Bended horizontal lines at top and bottom of the picture	Mount correctionmodule 4822 212 31384 (seagull), and do the alignments on this module.
PHILIPS	GR2.1	Bad search tuning gr2.1 mono versions on local cable nets.	Add on the monocarrier between junction r3714/r3735 and earth an electrolitic capacitor 1 uf/16v (4822 124 40242) mount the capacitor on the location of the reserved item number 2707. the problem has been observed on local cable nets special on the lower