Philips CDR796 - Manual (Page 35)

7-5 7-5
3553 A3
3554 A4
3555 C2 3556 C4
3557 C2
3558 C3 6450 B2
6451 B4
7450 C3 7451 C4
F470 B1
F471 B1 F472 A1
F473 A1
F474 A1 F475 A1
KEY BOARD
STANDBY SPEED
(key lighting)
to / from Display Board
1416
1 2 3 4
1 2 3 4
A
B
C
A
B
C
1450 A3
0060 A1
1451 A2
1452 A3
1453 A4
1454 A4 3550 A2
3551 A2
3552 A3
390R 3555
3557
10K
D
KEY
3556 82R
1453
PLA
Y/P
AUSE
CD
10K
3558
3554
10K
3552
1K8
3553
3K9
3551
1K2
3550
820R
1450
O/C_CD
F473
SPEED
ST
ANDBY
-ON
1451 1454
ST
OP
CD
1452 1
2
3
4
5
6
F470
0060
FE-ST-VK-N
F472
F471
F475
D
F474
D
6450 6451
BC847B
7451
+5V +5V
LED_ON/OFF
LED_SPEED
KEY_0
+5V
7450
BC847B
LST770-KL
LBT776-K1L1
Key Board CDR79x, 260302
red blue
EVM
. . . V
V
DC VOLTAGES MEASURED IN
STOP MODE
UNLESS STATED OTHERWISE
... /...V on/off
5 –0,25V
5 –0,25V
4,7V/0V
4,9V/0V
0,7V/0V on=0,1V 0,7V/0V on=0,1V
3103 303 3483.2
KEY Board / copperside view
Key Board stage .2 CDR79x, 030402
0060 A1
1450 B1
1451 A1 1452 A3
1453 A3
1454 A4 3550 A2
3551 B2
3552 B2 3553 A3
3554 A3
3555 A2 3556 B3
3557 A1
3558 B2 6450 B2
6451 B3
7450 A2 7451 A3
9451 A2
9452 B3
F482 D2 F480 C2
F481 C2
1414
blue
3x LBT776-K1L1
1 2 3 4 5 6
1 2 3
A
B
C
D
A
B
C
D
1460 C2
3570 C5 3571 C5
from Display Board
red
4x LST770-KL
LIGHTGUIDE BOARD
(Rec. Indicator)
3572 C6
3573 B3
3574 B3 3575 B4
3576 B4 6462 B3
6463 C5 6464 B3
6465 C5 6466 B4
6468 C6 6469 B4
F481
4 5 6
F480
F482
390R 3575 3576 390R 3574 390R
120R 3572
390R 3573
3570 270R 270R 3571
6469
6465 6468
6464 6466
6463
6462
3
4
FMN
1460
2
1
+5V
+5V
LED_red
+5V
LED_blue
Lightguide Board CDR79x, 270302
EVM
. . . V
V
DC VOLTAGES MEASURED IN
STOP MODE
UNLESS STATED OTHERWISE
5 –0,25V
on=1,6V
on=0,4V
Lightguide Board/ copperside view
LED red
LED blue
GND
+5V
1460
Red Red Red Red Blue Blue Blue
Lightguide Board stage .2 CDR79x, 270302
1460 A1
3570 D1 3571 D1
3572 E1 3573 E1
3574 C1 3575 D1
3576 E1 4461 A1
4463 A1 6462 E1
6463 D1 6464 C1
6465 D1 6466 D1
6468 E1 6469 E1
4461
4463
3574 3571 3575 3573 3572 3576 3570