Philips fw c 550 service manual

Page 2

*From production week 0115 onwards the software of the main
processor IC (7400) has been upgrade to version 14. The new
service code is 9965 000 10407.

From production week 0126 onwards the following has been
changed to lower ADC step from 255 to 253 so as to solve
irregularly power-up recording problem.

Add 3524 4822 051 30109 10R 5% 0,062W
Delete 4405

AF9 BOARD
'From production week 0110 onwards pt.3 Board (identified by the
last digit of the 12NC - 3139 113 34353) is introduced.

Reason : For process, EMC & ESD improvement.
Add 2950 4822 126 13881 470pF 5% 50V
2951 4822 126 13881 470pF 5% 50V
2952 4822 122 31765 100pF 2% 63V
2953 4822 126 13881 470pF 5% 50V
3820 4822 116 52176 10R 5% 0,5W
Change 6206 4822 130 31878 1N4003G
Delete 9614 Bare wire

'From production week 0122 onwards the following has been
changed for GSM solution.

Add 3525 4822 051 30471 470R 5% 0,062W
3526 4822 051 30471 470R 5% 0,062W
3645 4822 051 30221 220R 5% 0,062W
3646 4822 051 30221 220R 5% 0,062W
4153 4822 051 30008 OR Jumper 0603
4641 4822 051 30008 OR Jumper 0603
4642 4822 051 30008 OR Jumper 0603

Delete 3641, 3642

'From production week 0132 onwards the following has been
changed to solve capacitor current leakage issue.

Change 2503 4822 124 22466 1uF 20% 50V
2504 4822 124 22466 1uF 20% 50V
2511 4822 124 22466 1uF 20% 50V
2512 4822 124 22466 1uF 20% 50V

During production pt.4 Board (identified by the last digit ofthe 12NC
- 3139 113 34354) is introduced. For this reason new layout and
circuit drawing are enclosed.

MMPWR100W MODULE - MAINS BOARD

*During production pt.7 Board (identified by the last digit ofthe 12NC
- 3139 113 34331) is introduced. For this reason new layout and
circuit drawing are enclosed.

MMPWR 100W MODULE - L/R AMP. & SUPPLY BOARD
From production week 0121 onwards the following has been
changed to increase Fan speed.

Change 3304 4822 052 10108 A 1R 5% 0,33W
3305 4822 116 83876 270R 5% 0,5W
3306 4822 116 83876 270R 5% 0,5W

'From production week 0121 onwards the following has been
changed for NTC sensitivity adjustment.

Add 3292 4822 116 52263 2k7 5% 0,5W
Change 6258 4822 130 34173 BZX79-BSV6

*From production week 0121 onwards pt.4 Board (identified by the
last digit of the 12NC - 3139 113 34344) is introduced. For this
reason new layout and circuit drawing are enclosed.

Reason : For EMC solution.

Add 2370 2020 561 90365 100nF +80/-20% 50V
2371 2020 561 90365 100nF +80/-20% 50V
2372 4822 126 12878 1,5nF 10% 16V
3395 4822 116 52175 100R 5% 0,5W

*From production week 0137 onwards the following has been
changed for EMC performance.

Change 2330 4822 122 33519 470pF 10% 50V
2335 4822 122 33519 470pF 10% 50V
Delete 2328, 2331