Philips HTS3155/78 Service Manual
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Brand: Philips
Category: Home Theater System
Type: Service manual
Model: Philips HTS3152/51 , Philips HTS3155/78
Pages: 28
6 - 1 6 - 1
MAIN BOARD
TABLE OF CONTENTS
Internal IC Diagram ...........................................................................6-1
Circuit Diagram .................................................................................. 6-2
PCB Layout Top View .......................................................................6-3
PCB Layout Bottom View .................................................................. 6-4
Voltage ..............................................................................................6-5
28 27 26 25 21
2223
24 20 19 18
1516
17
MUTE
Thermal
Shut dowm
10k
10k
10k
10k
25k
25k
25k
15k
Vcc1
1 2 3 4 5 6 7 8 9 10 11 12 13 14
VINFC TRB-1 RSGO2 VINSL+ REGO1 FWD REV VCC1 VOTR- VOTR+ VOSL+ VOSL- VOFC-
VOFC+
MUTE BLAS VINTK TRB-2 NC VINLD GND
VCTL
NC VCC2 VOLD-
VOLD+
VOTK- VOTK+
RGND
VCC1
Prc-DR V TRA Y
DRIVER
Sled
Driver(4X)
Actuator
Driver(6X)
Spindle
Driver(4X)
Driver(6X)
Actuator
Vcc2
Vcc2
+
-
+
-
+ -
+ -
+ -
+ -
INTERNAL IC DIAGRAM - CO4558A HOSP
INTERNAL IC DIAGRAM - V5888S HOSP