Philips Repair Tips
Search: philips
Results: 14233
Results: 14233
| Make | Model | Symptom | Problem | Solution | By |
|---|---|---|---|---|---|
| PHILIPS |
GR2.1
|
No sound when the set is warm, led blinks | Defective ic7309 (tda4680; 4822 209 31592) blocks iic bus. | ||
| PHILIPS |
GR2.1
|
Mr4 to mr5 software change | Mr4 to mr5 software change. after changing a microprocessor with mr4 software by a version with mr5 software it is recommendable to check the option, white balans and peak white limit values. some values may be overwritten. | ||
| PHILIPS |
GR2.1
|
Moire in picture. | Instead of changing the tuner uv916/uv917, add a electrolytic capacitor of 10 uf 25v between pin 12 and pin 16 of the tuner. remarks :1. the capacitor is introduced in production from week 9130 onwards. 2. when changing the electrolytic capacitor c2646 | ||
| PHILIPS |
GR2.1
|
Modification | Modification east-west circuit has been changed to lower the voltage in transistor 7533 at the moment of switch off. the values of the following components have been changed in production: r3526 to 47k (4822 051 10473). c2526 to 10nf (4822 122 32442). | ||
| 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 |