Block Diagram Audio - Philips L04E Service Manual

Block Diagrams, Testpoint Overviews, and Waveforms

Block Diagram Audio

AUDIO
A3
TUNER IF
7003
9002
A2 VT_SUPPLY SSIF
+5V
6001
BZX79-C33
9003 5001
+5VS
1000 6, 7 9
VT
F002
1002
2 FM-RADIO 10
ERR
FM 1003
10 TUNER
FM VIF_1
F004
+
11
IF
TV TUNER
VIF_2
TV
AGC
5 4 1
I002
3001
RF
A4 SDA
I001
3000
A4 SCL
1004
SIF1
7001
FILTER SIF2
A4 SEL-LLPIM
SELECTION
A8
REAR I/O SCART
SCART 1
SC1_L_IN
6
SC1_R_IN
3
2
1
SCART 2 SC2_L_IN
6
SC2_R_IN
3
2
1
D A5
SIDE AV CONNECTIVITIES
1252 1207
SIDE_L_IN
3 3
L
SIDE_R_IN
1 1
R
CONTROL
E
TOP CONTROL
1010
2
LOCAL
KEYBOARD
J1 A9
FRONT INTERFACE FRONT CONTROL
(PARTLY)
6692
TSOP1836
1693 1693
IR 3 3
6691
4 4
LED
+3.3V
5 KEYBOARD
5
KEYBOARD
LIGHT_SENSOR
6 6
ON/OFF
USA only
LIGHT_SENSOR
6693
LIGHT_SENSOR
6693
6692
TSOP1836 F692
1
6691
+3.3V
LOCAL
KEYBOARD
+
KEYBOARD
ON/OFF
(USA only)
L04E AB 6.
A4
HERCULES
7200-A (IF)
PHASE FM/QSS
VCO
DISC
PLL
24
To VIDEO PART
VIDEO VIDEO
see block diagram
IF DEMOD
25
VIDEO
INTF_R_IN
INTF_L_IN
PLL
31 SC2_R_IN
TUNER IF
AGC
SC2_L_IN
FM/QSS
SOUND SIDE_R_IN
MIXER
29 SIDE_L_IN
AUDIO IF
30 SC1_R_IN
QSS/AM AM
AM
SOUND
SC1_L_IN
DET.
IBO-ZAPPER PANEL
K5 A5
CONNECTIVITIES
1219 1219
SEE R1 INTF_R_IN
1 1
BLOCK DIAGRAM
L1 3 3 INTF_L_IN
IBO-ZAPPER
PANEL
A4
HERCULES (CONTROL)
7200-G (Control)
TDA12001H1
22
I/O PORTS
1682
2
+
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
23
7200-F (AUDIO)
DIGITAL PART
AMPLI AUDIO
FM
SSIF + SOURCE ADC
96
DEM.
MUTE SELECTION
AM
75
76
72
73
79
80
94
95
A7
AUDIO AMPLIFIER
V AUDIO+1
7990
TDA2616Q
I951
MAIN_OUTL
1
I952
MAIN_OUTR 9
2
7991
7992
-V AUDIO
VOLUME
A4 +
VOL_MUTE 7991
MUTE
A5
FEATURES
+3.3V
EEPROM
8
(NVM)
WRITE_PROTECT 7 6
ERR
5
+3.3V
9
3605 3604
3202 3204
3207
SDA
see
3214 IIC
SCL
DIAGRAM
+3.3V
3279 3280
3266
E see
IIC
3265
DIAGRAM
D
(FOR LTI)
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
DIGITAL SCART
AUDIO
SOUND DAC CINCH 92 SC1_R_OUT
SELECT
PROCESSING OUTPUT
DIGITAL
67 SC2_L_OUT
AUDIO HP
STEREO
66 SC2_R_OUT
SELECT OUTPUT
SOUND
DECODER
68 MAIN_OUTR
ERR
LS
19
MAIN_OUTL
69
OUTPUT
7993, 7994
A4 Stby_Con
MUTING
MUTE
A4
POWER_DOWN
7
F952 1281
4 5
L 8 Ohm/15W
F955
6 2
R 8 Ohm/15W
D
SIDE AV
5
1280 1254 1278
1 5 1
L 8 Ohm/15W
OR
2 2 2
R 8 Ohm/15W
F004 I001 I002
F003 0V (N.A.)
200mV / div AC 1V / div DC
1V / div DC
10ms / div 20µs / div 20µs / div
I951 I952 F952
50mV / div AC 50mV / div AC 500mV / div AC
2ms / div 2ms / div 2ms / div
F692
2V / div DC
2ms / div
REAR I/O SCART
SPDIF
(optional)
1228
3762
1
SCART 1
2
6
3
3 7706 : 7709
2
1
MUTING
CIRCUIT
SCART 2
SUBWOOFER
6
(optional)
3757
3
1764
2
1
3764 3761
MONITOR
7705
OUT
4
5
L
2 1
R
7703 7702
MUTING
1763
1
A5
B3
ANTI D/P PLOP
(part)
1410
1 MUTING
to 2-1683
7410
2 POWER_DOWN
A4
MUTING
12V
3 DC
CIRCUIT
to 3-1581
A10
F955
500mV / div AC
2ms / div
E_14970_029.eps
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