I2C And Supply Voltage Diagram - Philips L01.2A AB Service Manual

Block Diagrams, Testpoints Overviews, and Waveforms
2
I C and Supply Voltage Diagram
A1 POWER SUPPLY
5500 :
0231
0211
5502
6500
1500
6501
AC
T4E
6502
150 - 250V 6503
SINGLE RANGE
MAINS
3527
90 - 276V SWITCH
7520 7521
FULL RANGE
STP7NB60FP
TEA1507
8
3523
DRAIN
6
G
DRIVE R
3525 P2
5
SENSE
3
CTRL
3522
4
DEMAG
3531 6520
1
VCC
2521
CONTROL
IC
P3
I2C BUS INTERCONNECTION DIAGRAM
A7
CONTROL
+3.9V +3.9V
ERR
6
C4 3607 3606
7200-B
SDA 3625
SET 72
PROCESSOR
3624
71
PART OF
SCL
VIDEO-
C5
PROCESSOR
5 6 0217
1
7602
M24C08
ERR
EEPROM 2
7
5 68
(NVM)
3 FOR
ERR
COMPAIR
9
ERROR CODE LIST
Error Description
0 No error
1 X-Ray / over voltage protection
2 High beam (BCI) protection
3 Vertical guard protection
4 I2C error while communicating with the sound processor
5 Power ON reset (POR bit) 3.3V protection / +8V protection
6 General I2C error
7 Power Good (over current) protection
8 EW protection (Large Screen only)
9 I2C error EEPROM error
10 I2C error PLL tuner
11 Black current loop instability protection
L01.2A AB
6560
6561
5560 5563
2561
P1 5520
A
1 13
2503
6564
2
12
P5
6562 3564
3 5562
10
D
2564
9
S
7561, 7562
5
7564
POWER
3526
DOWN
6
CIRCUIT
7
N.C.
3549
A
7540, 6540
3543
REFERENCE
CIRCUIT
3544
3519
3
1
7515
7541, 7542
TCET1103
STDBY_CON
2 STANDBY
4
CIRCUIT
HOT GROUND COLD GROUND
A4 A9
TUNER IF NICAM, 2CS,
BTSC DECODER
SDA
SDA SDA
SCL SCL
SCL
I1 I2 A7 A8
5 4 8 7
1000 7831
TUNER MSP34X5G
SOUND
DECODER
ERR ERR
10 4
6. EN 17
P6
95V
5561
MAIN SUPPLY
A8
AUDIO AMPL.
7901
AUDIO
1
OR OUTPUT
12V
STEREO
M_AUX
3537
MAIN AUX 7902
MAIN AUX
AUDIO
AUDIO SUPPLY GND 1
OR
OUTPUT
MONO
AUDIO SUPPLY
POWER DOWN
GND
V DEFL.
A7 CONTROL
+3.3V
7560 7200-B
P4
+3.3V +3.3V
5602
66
5603
2567 61
uC
3557
5604
59
+3.9V
+3.9V
3558
7602
(TO 3606
3606,3633) 3611
8 EEPROM
(NVM)
A6 SYNCHRONISATION
+3.3V (TO 3256)
A7
A12
FRONT CONTROL
+3.3V
4693
+3V3A
A2
LINE DEFLECTION
5445
EHT
FOCUS
MAIN SUPPLY 3487 LOT
5451
VG2
2
2450
VIDEO
0220
3416
6409 SUPPLY
7 3
M_AUX
VLOT AUX +13V FILAMENT
9 2
to 2419
6467 1
3412
6406
6413 3411
3413
6405
-13V
6
6423 3428
V DEF 3427
VT_SUPPLY
3404
3421
VLOT AUX +5V
7407
H-DRIVE
LINE
TO
OUTPUT
C-6408
B-7409
6410 +8V
8 7408
VLOT AUX +5V
6402
VLOT AUX +13V
5
TO E-7406
3415
+8V
VLOT AUX +5V
NICAM 2CS -
A9
BTSC DECODER
7831
BTSC
VLOT AUX +5V
46
DECODER
5833
+5VA
5832
33
+8V
AUDIO VIDEO
A10
SOURCE SWITCHING
+8V 3801
+6V8
REAR I/O CINCH
A13
+8V (TO 7101-C)
B
CRT
VIDEO
EHT
OUTPUTS
ANODE CRT
FOCUS
3336
FOCUS CRT
C-7332
VG2
VG2 CRT
3326
C-7322
0244
160V
3 3316
C-7312
5341
2
TO CRT
FILAMENT
1
3349
3350
A4 TUNER IF
1000
9
VT_SUPPLY 33V
TUNER
6001
BZX79
-/C33
VLOT AUX +5V 5001
6
7
+8V (TO 3008)
A3
FRAME DEFLECTION
7471
-13V
4 FRAME
OUTPUT
VLOT AUX +13V
3
VLOT AUX
POWER SUPPLY
A1
VLOT AUX +13V
TO DEGAUSSING CIRCUIT
VIDEO IF
A5
VLOT AUX +5V
7200-A
(TO 2234)
+8V
39 VIDEO
5202 IF
+8VA
SYNCHRONISATION
A6
+8VA (TO 3248)
7200-D
+8V
5241
9 SYNC
PROC.
A7 CONTROL
+8V (TO 4-0217) NOT USED
+5V (TO 3619)
VLOT AUX
AUDIO AMPLIFIER
A8
+8V (TO 3948, 3950)
+5V (TO 9921)
VLOT AUX
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