Block Diagram Audio/Control - Philips L04E Service Manual

Block Diagrams, Test Point Overviews, and Waveforms

Block Diagram Audio/Control

AUDIO
A3
TUNER IF
7003
SSIF
A2 VT_SUPPLY
6001
BZX79-C33
9002 5001
+5V
1000 6, 7 9
VT
1002
10
2 FM-RADIO
ERR
FM 1003
10 TUNER
FM VIF_1
+
11
IF
TV TUNER
TV VIF_2
AGC
5 4 1
3001
RF
A4 SDA
I001
3000
A4 SCL
1004
SIF1
7001
SIF2
FILTER
A4
SEL-LLPIM
SELECTION
A8
REAR I/O SCART
SCART 1
1735-1 SC1_L_IN
6
SC1_R_IN
3
2
1
SCART 2
1735-2 SC2_L_IN
6
SC2_R_IN
3
2
1
D A5
SIDE AV CONNECTIVITIES
1252 1207
1250
SIDE_L_IN
3 3
L
SIDE_R_IN
1 1
R
CONTROL
J1 A9
FRONT INTERFACE FRONT CONTROL
(PARTLY)
6692
TSOP1836
1693
1693
IR 3
3
6691
4 4
LED
+3.3V
5 5 KEY_PROTN
LED
KEY_PROTN
6 LIGHT_SENSOR
6
4x
Channel +/-
LIGHT_SENSOR
Volume +/-
6693
LIGHT_SENSOR
6693
RES
6692
TSOP1836
1
6691
+3.3V
KEYBOARD
4x
Channel +/-
Volume +/-
L04E AE 6.
A4
HERCULES
7200-A (IF)
TDA12020H1
PHASE FM/QSS
VCO
DISC
PLL
24
To VIDEO PART
VIDEO VIDEO
see block diagram
IF DEMOD
25
VIDEO
INTF_R_IN
N.C.
INTF_L_IN
PLL
31
TUNER IF SC2_R_IN
AGC
SC2_L_IN
FM/QSS
SOUND SIDE_R_IN
MIXER
SIDE_L_IN
29
AUDIO IF
30 SC1_R_IN
AM
QSS/AM
AM
SOUND
SC1_L_IN
DET.
A4
HERCULES (CONTROL)
7200-G (Control)
TDA12020H1
22
I/O PORTS
+
KEY_PROTN 9
IR 32
IIC BUS
LED 30 20
TRANSCEIVER
LIGHT-SENSOR 14
21
IR
+
LED
PWM
OR
2
OUTPUTS
POWER_DOWN 31
A1
1
+
18
CPU
15
+
17
TELETEXT
(close caption)
IR
OR
16
+
LED
23
ROM
RAM
24
119
25
ERR
1205
20
24MHz
118
24
7200-F (AUDIO)
DIGITAL PART
AMPLI AUDIO
FM
ADC
SSIF 96 + SOURCE
DEM.
MUTE SELECTION
AM
75
76
72
73
79
80
94
95
A7
AUDIO AMPLIFIER
MAIN_OUTL
MAIN_OUTR
A4
VOL_MUTE
A5
FEATURES
+3.3V
7601
EEPROM
8
(NVM)
WRITE_PROTECT 7 6
ERR
5
+3.3V
9
3604
3202 3204
3207
SDA
see
3214 IIC
SCL
DIAGRAM
+3.3V
3279 3280
3266
see
E
IIC
3265 DIAGRAM
D
(FOR LTI
AND PIP)
VOL_MUTE
A7
A1
Stdby_Con
A7
7205
ROT
B2
SEL_LLPIM
A3
SERVICE JUMPER
A5
I2SD/1
G
Reset__5V 9275
A5
SDM
9252
SEL_SC2_INTF
A5
A8
93 SC1_L_OUT
SCART
DIGITAL
AUDIO
DAC CINCH
SOUND 92 SC1_R_OUT
SELECT
PROCESSING OUTPUT
DIGITAL SC2_L_OUT
67
AUDIO HP
STEREO
66 SC2_R_OUT
SELECT OUTPUT
SOUND
DECODER
68 MAIN_OUTR
ERR
LS
19
69 MAIN_OUTL
OUTPUT
V AUDIO+1
A4
Stby_Con
7990
A4 POWER_DOWN
TDA2616Q
7
1281
4 5
1
RES
9
6 2
2 5
7991
7992
1280
-V AUDIO
1
VOLUME
+
7991
MUTE
2
REAR I/O SCART
SCART 1
1735-1
6
3
2
1
SCART 2
1735-2
6
3
2
1
7705
1734
5 4
L
2 1
R
MONITOR
7703 7702
OUT
MUTING
A5
7993, 7994
MUTING
MUTE
D
SIDE AV
1254 1278
1232
5 1
L 16 Ohm/10W
2 2
R 16 Ohm/10W
G_16810_034.eps
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