Philips MC77 - Front Control Board; Standby (Power) Part - Circuit & Layouts

8-1
FRONT CONTROL BOARD
TABLE OF CONTENTS
Standby (Power) part....................................................... 8-1
Key Control (KEYB. 1) & Lightwash parts....................... 8-2
Headphone, Jog (Volume) and CDC Key parts .............. 8-3
Electrical parts list............................................................ 8-4
STANDBY (POWER) PART - CIRCUIT & LAYOUTS
8-1
DEM
BAND
PASS
CTRL
CIRCUIT
AGC
INP
PIN
560R
3401
1234
A
B
C
D
E
A
B
C
D
E
1400 A1
1402 A3
1405 A2
2401 E3
2402 E3
2403 B3
2404 C3
2405 C4
2406 C4
3400 A3
3401 A3
LTL-4221N
6400
3402 C3
3403 B4
3404 E4
3405 E4
6400 C4
7400 D1
7402 C4
2
3
4
5
6
7
GND_B
1402
LPS
3403
820R
390R
3400
GND_B
STDBY
2402
4u7
3402
47K
7400
3GND
1OUT
2VS
1405
2401
4u7
TSOP2236
GND_B
1400
FE-BT-VK-N
1
100n
4u7 2403
10K
3404
3405
100R
4u7
BC857B
7402
4u7
+C
+C
+C
1234
8239_210_88950 ... 3444 pt 1 dd wk103
To Front Display
For Low Power Standby version only
2404 #
2406 #
2405 #
# For Provision only
This assembly drawing shows all possible versions. For components used in a
spsecific version see schematic diagram and respective parts lists.
3139 113 3444 pt 1 dd wk 103
This assembly drawing shows all possible versions. For components used in a
spsecific version see schematic diagram and respective parts lists.
3139 113 3444 pt 1 dd wk 103
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11/03/2012
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