Control & Speaker Jack Board - Philips LX3700D Service Manual
Philips dvd receiver service manual
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Also See for LX3700D:
- Manual do usuário (35 pages) ,
- Owner's manual (33 pages) ,
- Specifications (2 pages)
Table of Contents
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CONTROL / SPEAKER JACK
BOARD
TABLE OF CONTENTS
IC Interbnal Block Diagram & Voltage ............................. 5-1
Circuit Diagram ................................................................ 5-2
PCB Layout View ............................................................. 5-3
Electrical Parts List .......................................................... 5-4
5-1
CF745 INTERNAL BLOCK DIAGRAM
9-1 1
EPROM /ROM
9- 11
STAC K 1
512 X 12 TO
STAC K 2
PC
2048 X 12
12
INSTRUCTION
REGISTER
WDT TIME
9
OUT
12
8
INSTRUCTION
DECODER
DIRECT ADDRESS
DIRECT RAM
ADDRESS
8
STATUS
TMR0
W
ALU
FROM W
4
"TRIS 5 "
TRIS A
PORTA
RA <3:0>
PT6311 INTERNAL BLOCK DIAGRAM
Control
DIN
Serial
Genaral
DOUT
Data
Input
CLK
STB
interface
Register
VDD
R
OSC
OSC
Generator
SW 1
Genaral
SW 2
Key Matrix
Input
SW 3
SW 4
Register
LED 1
LED 2
LED
LED 3
LED 4
Driver
LED 5
K1
K2
VOLTAGE
IC201
(BG2B83)
PIN NO
1
2
3
4
5
6
7
8
9
Voltage
0
0
0
4.8
0
4.8
4.8
0
0
IC251
(PT6311)
PIN NO
1
2
3
4
5
6
7
8
9
Voltage
0
0
0
0
5
5
0.6
5
5
PIN NO
21
22
23
24
25
26
27
28
29
Voltage -18.8 -13.3 -11.3 -17 -11.4 -17
-19 -14.6 -17.3 -11.4 -13
PIN NO
41
42
43
44
45
46
47
48
49
Voltage -16.5 -16.7 15.8 16
5
0
0
2.1
2.1
Q201
(2SA733)
Q202
(2SA733)
PIN NO
b
c
e
PIN NO
b
Voltage 4.8
0
4.8
Voltage 4.8
Q204
(2SC945)
PIN NO
b
c
e
Voltage 4.6
4.1
4.1
5-1
T0CKI
OSC1
OS C 2 MCLR
CONFIGURATION WORD
PIN
"OSC
"DISAB LE "
SELECT "
WA TCHDOG
2
"CODE
TI MER
OSCILLATO R/
PROTECT "
TI M ING &
CONTROL
CLKOUT
WDT/TMR 0
PRESCALER
"SLEEP"
6
"OPTION "
OPTION REG.
GENERAL
PURPOSE
FROM W
REG ISTER
5
FI L E
(SRAM )
5- 7
24, 25, 72 or
73 B y tes
FSR
DATA BUS
8
FROM W
FROM W
4
8
8
8
"TRIS 6 "
"TRIS 7"
TRIS B
POR TB
TRISC
PORTC
4
8
RB < 7 :0 >
RC <7: 0 >
( 28-Pin
De vi ces On ly )
Segment
Driver/
Timming
Grid
Driver/
Memory
Key Scan
Output
Dimming
Grid
Circuit
Driver
K3
K4
VDD
GND
VEE
10
11
12
13
14
15
16
17
18
0
0
0
0
4.8
0
0
0
0
10
11
12
13
14
15
16
17
18
19
0.9
0
0
0
5
-18.5 -19
-19
-9.4
-17
30
31
32
33
34
35
36
37
38
39
-9.5
5
-19.5 -17.8 -17.9 -17.9 -17.9 -17.8 -15.9
50
51
52
2.2
2.2
3
Q203
(25A733)
c
e
PIN NO
b
c
e
0
4.8
Voltage 4.8
0
4.8
8
8
8
SG1/KS1
SG2/KS2
SG3/KS3
SG4/KS4
SG5/KS5
SG6/KS6
SG7/KS7
SG8/KS8
SG9/KS9
SG10/KS10
SG11/KS11
SG12/KS12
SG13/GR16
SG14/GR15
SG15/GR14
SG16/GR13
SG17/GR12
SG18/GR11
SG19/GR10
SG20/GR9
GR1
GR2
GR3
GR4
GR5
GR6
GR7
GR8
20
-15
40
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