Block Diagram Audio/Control - Philips 32PF9968/10 Service Manual

Block Diagrams, Test Point Overviews, and Waveforms

Block Diagram Audio/Control

AUDIO
A3
TUNER IF
7003
SSIF
A2 VT_SUPPLY
6001
5001 BZX79-C33
+5V
1000 6, 7 9
VT
F003
1002
FM-RADIO 10
2
ERR
FM 1003
TUNER
FM 10
VIF1
F004
+
11
IF
TV TUNER
TV VIF 2
AGC
5 4 1
I002
3001
RF_AGC
A4 SDA
I001
3000
A4 SCL
1001
SIF1
7001
SIF2
FILTER
A4 SEL-LLPIM
SELECTION
A8
REAR I/O CINCH
AV1
SC1_L_IN
L
SC1_R_IN
R
AV2
SC2_L_IN
L
SC2_R_IN
R
D A5
SIDE AV CONNECTIVITIES
1252 1207
SIDE_L_IN
3 3
L
1 1 SIDE_R_IN
R
CONTROL
J1 A9
FRONT INTERFACE FRONT CONTROL
(PARTLY)
6692
TSOP1836
1693 1693
3
IR 3
6691
4 4
LED
+3.3V
5 5 KEYBOARD
LOCAL
6 6 LIGHT_SENSOR
KEYBOARD
KEYBOARD
ON/OFF
6693
USA only
LIGHT_SENSOR
6693
LIGHT_SENSOR
6692
TSOP1836 F692
1
6691
+3.3V
LOCAL
KEYBOARD
+
KEYBOARD
ON/OFF
(USA only)
L04A AD
A4
HERCULES
7200-A (IF)
PHASE FM/QSS
VCO
DISC
SSIF
PLL
105
To VIDEO PART
VIDEO VIDEO
see block diagram
IF DEMOD
104
VIDEO
INTF_R_IN
N.C. INTF_L_IN
PLL
98 SC2_R_IN
TUNER IF
AGC
SC2_L_IN
FM/QSS
SOUND SIDE_R_IN
MIXER
100 SIDE_L_IN
AUDIO IF
99 SC1_R_IN
QSS/AM AM
AM
SOUND
SC1_L_IN
DET.
A4
HERCULES (CONTROL)
7200-G (Control)
TDA12001H1
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
1
POWER_DOWN
31
+
A1
18
CPU
15
+
17
TELETEXT
(close caption)
IR
OR
16
+
LED
23
ROM
RAM 24
119
25
ERR
1205
20
24MHz
118
6. 22
7200-F (AUDIO)
DIGITAL PART
AMPLI AUDIO
FM
ADC
96 + SOURCE
DEM.
MUTE SELECTION
AM
75
76
72
73
79
80
94
95
A7
AUDIO AMPLIFIER
MAIN_OUTL
MAIN_OUTR
7992
VOLUME
A4 VOL_MUTE
A5
FEATURES
+3.3V
7601
EEPROM
8
(NVM)
7
WRITE_PROTECT 6
ERR
5
+3.3V 9
3605 3604
3202 3204
3207
SDA
see
3214 IIC
SCL
DIAGRAM
+3.3V
3279 3280
3266
E
N.C.
3265
D
VOL_MUTE
A7
6209
POWER_DOWN
A1
A1
Stdby_Con
A7
7205
ROT
A5
SEL_LLPIM
A3
I2SD/1
A5 N.C.
Reset__+5V
A5
SEL_SC2_INTF
A5 N.C.
A8
SC1_R_OUT
92
DIGITAL SCART
AUDIO
DAC CINCH SC1_L_OUT
SOUND 93
SELECT
OUTPUT
PROCESSING
N.C.
66 SC2_R_OUT
DIGITAL
AUDIO HP
STEREO
SELECT OUTPUT
SOUND SC2_L_OUT
67
DECODER
68 MAIN_OUTR
ERR
LS
19
MAIN_OUTL
69
OUTPUT
V AUDIO+1
A4 Stby_Con
7990
TDA2616Q
7
F952 1281
I951
4 5
L 8 Ohm/15W
1
I952
F955
9
6 2
R 8 Ohm/15W
D
2 5
1280 1254
-V AUDIO
1
+ 7991
MUTE
OR
2
F004 I001 I002
F003 0V (N.A.)
200mV / div AC 1V / div DC
1V / div DC
10ms / div 20µs / div 20µs / div
F205 F206
F201 2V / div DC
F203 2V / div DC
500mV / div DC 1V / div DC
10ms / div 20µs / div
F240 F241 F242
500mV / div DC 500mV / div DC 500mV / div DC
20µs / 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 CINCH
MONITOR
OUT
L
R
7104
* *
MUTING RESERVED
1138
A5
7993, 7994
MUTING
MUTE
1240
SIDE AV
1278
5 1
L 8 Ohm/15W
2 2
R 8 Ohm/15W
F955
500mV / div AC
2ms / div
E_14770_004.eps
010904