Philips FWD876 - USB Operations; USB Connectivity and Compatibility

8-1
8-1
MAIN BOARD
CO4558A Internal IC diagram
CD4053BM96 Internal IC DIAGRAM
TABLE OF CONTENTS
Internal IC Diagram ................................................... 8-1
Circuit Diagram( main unit-Top Left ) ........................8-2
Circuit Diagram ( main unit-Top Right ) .....................8-3
Circuit Diagram ( main unit-Bottom Left )
..................
8-4
Circuit Diagram ( mian unit-Bottom Right ) ...............8-5
PCB Layout ( main unit-Top view ) ............................8-6
PCB Layout ( mian unit-Bottom view ) ......................8-7
Electrical Part List ( main unit
) ...................................
8-8
Circuit Diagram ( swoofer )........................................8-9
PCB Layout ( swoofer-Top view ) ..............................8-10
PCB Layout ( swooffer-Bottom view ) .......................8-11
TDA8920BTH INTERNAL IC DIAGRAM
9 (3)
8 (2)
IN 1M
IN 1P
SGND 1
11 (5)
OSC
7 (1)
MODE
6 (23)
SGND 2
2 (19)
IN 2 P
IN2M
5 (22)
4 (21)
MUTE
1 (18)
12 (6)
V
SSA2
V
SSA1
24 (17)
V
SSD
ENABLE 2
SWITCH 2
RELEASE 2
19 (-)
N.C.
V
SSP1
V
SSP2
17 (11) 20 (13)
OUT 2
21 (14)
22 (15)
BOOT 2
V
DDP 2
V
SSP 1
TDA8920BTH
(TDA8920BJ)
OUT 1
BOOT 1
16 (10)
14 (8)
15 (9)
23 (16)
V
DDP 1
V
DDP 2
RELEASE 1
SWITCH 1
ENABLE 1
13 (7)
18 (12)
STAB 1 PROT
MUTE
3 (20) 10 (4)
V
DDA2
V
DDA1
INPUT
STAGE
INPUT
STAGE
MODE
OSCILLATOR
PWM
MODULATOR
PWM
MODULATOR
MANAGER
STAB1
CONTROL
AND
HANDSHAKE
TEMPERATURE SENSOR
CURRENT PROTECTION
VOLTAGE PROTECTIONS
CONTROL
AND
HANDSHAKE
DRIVER
HIGH
DRIVER
HIGH
DRIVER
LOW
DRIVER
LOW
Electrical Part List ( swoofer)......................................8-12