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I 2 C-ic Overview - Philips FM242 Service Manual

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Block Diagrams, Testpoint Overviews, and Wiring Diagram
2
I
C-IC Overview
IIC
CONTROL
SC7
FUNCTIONS 1
IIC BUS 1
+5V_STBY_SW
(slow 100KHz)
3414
3415
3404-C
86
SDA-1
MASTER
3404-D
HW IIC
85
SCL-1
7383
0382
SAA5801H
10
OTC
9
MAIN-
PROCESSOR
SERVICE
(MASTER)
COMPAIR
CONNECTION
ERR
91
ERR
92
ERR
93
ERR
94
ERR
95
ERR
96
ERR
97
IIC BUS 2
+3V3_CNTR_D
(slow 100KHz)
3410
3413
3404-A
88
SDA-2
SLAVE
3404-B
HW IIC
87
SCL-2
3398-C
PW_START
+3V3_CNTL_D
IIC BUS 4
3432
3430
3402-B
SDA_NVM_1
91
MASTER
3402-A
HW IIC
SCL_NVM_1
92
3433
3431
5
6
7430
4431
M24C32
74
RESET
ERR
(NVM)
7
7
EEPROM
3384
108
PW_RESET
3007
PW_FLASH_RESET
109
DATA
7500
MSM51V18165F
ADDRESS
RAM
DATA
7506
ADDRESS
FLASH
FM242 AA
6.
CONTROL
CLOCK
AUDIO
SC8
SC9
SC14
FUNCTIONS 2
GENERATOR
PROC.
1
3
SCL_SW
7571
3541
3540
SDA_SW
+5V
4811
4810
15
4
3532
3531
3571
3570
3813
3812
15
14
9
10
1
16
13
12
SLAVE
SLAVE
SLAVE
SLAVE
HW IIC
HW IIC
HW IIC
HW IIC
7540
7530
7570
7812
PCF8574AT
PCF8591
FS6377
MSP3415G
I/O EXP.
ADC
CLOCK
AUDIO
GENERATOR
PROC.
ERR
ERR
ERR
ERR
5
2
3
4
PW164
SC10
+3V3_PW
3601
3600
3608
3604
A4
B1
MASTER
MASTER
3606
SW
SW
3605
C2
D6
IIC
IIC
E2
EXT INT
NVM
SC9
7605
PW164
IIC BUS 5
CO-
PROCESSOR
3602
PW_SDA_NVM
A1
FOR
SCALER
3603
C4
PW_SCL_NVM
AND
OSD
4581
E3
PW_RESET
7
DATA
7628
CY62126
ADDRESS
RAM
DATA
7630
M29W160DT
ADDRESS
FLASH
22
SOURCE
CONTROL
P3
PROTECTION
SC13
SC8
SELECT
FUNCTIONS2
0319
0319
6
6
SCL_AUDIO
7
7
SDA_AUDIO
3795
3794
3371
3370
28
27
74
73
SLAVE
SLAVE
HW IIC
HW IIC
7798
7370
TEA6422Q
PCF8574A
MATRIX
I/O EXP.
SWITCH
ERR
ERR
1
6
VIDEO-SEL.
VIDEO-SEL.
SC4
SC5
ADC
DECODER
IIC BUS 3
(slow 100KHz)
PW_SDA
PW_SCL
3209
3210
3250
+3V3_PW
3583
3580
92
91
P10
SLAVE
SLAVE
HW IIC
HW IIC
3582
3581
7170
7225
AD9887KS
SAA7118E
5
6
7580
ADC +
VIDEO
M24C32
TMDS REC.
DECODER
ERR
(NVM)
8
ERR
ERR
EEPROM
10
9
VGA
VCA
CONNECTOR
VGA1 IN
15P"D"SHELL
0371
CONNECTOR
DVI-D INPUT SOCKET
6
11
1
12
7
12
2
8
13
3
13
9
0375
14
4
7215
10
14
15
5
ST24FC21
SCL
15
6
DDC
6630
SDA
EPROM
VGA2 IN/OUT
7
15P"D"SHELL
0372
CONNECTOR
6
11
1
12
7
12
2
8
13
3
13
9
14
4
14
10
15
5
3633
15
BACK-END
BACK-END
SC12
SC11
LVDS OUTPUT
EPLD
+3V3_STBY_SW
3681
3685
SDA-1
SDA-1_3V3
SCL-1
SCL-1_3V3
3664
3662
7676
C5
C4
BSN20
SLAVE
D
S
IIC
7656
G
7675
EP1K30FC256
BSN20
D
S
EPLD
ERR
G
12
3682
3686
SLAVE
IIC
C6
C8
+3V3_STBY_SW
3663
3661
3251
3284
3285
Error Device
Description
1
TEA6422D
Audio switch (only Enhanced)
2
MSP3451G
Sound processor
3
PCF8574-SCAVIO
I/O expander SCAVIO
4
PCF8591
AD-DA expander
5
FS6377
Clock generator
6
PCF8574-PSU
I/O expander PSU
7
24C16 OTC
NVM OTC
N9
21
20
SLAVE
8
24C16 PW
NVM PW
HW IIC
9
SAA7118
Video decoder (only Enhanced)
7280
10
AD9887
ADC/TMDS receiver
SDA9400
11
SDA9400
De-interlacer (only Enhanced)
DE-
12
EP1K30QC
EPLD processor
INTERLACER
13
PDP
I2C error of the PDP
ERR
11
20
Download comm.
Errors during downloading
21
CSP comm.
CSP time-out error
40
Temperature alarm
Detections of over-temperature
70
Over voltage
Vs, Va, +5V, +3V3 overvoltage
71
Vs under voltage
Vs under voltage
7904
DCC-SDA-1
ST24FC21
5
DDC
72
Va under voltage
Va under voltage
7
NVM
DCC-SCL-1
73
+5V under voltage
+5V under voltage
74
+3V3 under voltage
+3V3 under voltage
7907
DCC-SDA-2
ST24FC21
5
75
DC-PROT
Audio amplifier protection
DDC
7
NVM
DCC-SCL-2
HW = HARDWARE
SW = SOFTWARE
BACK-END
PLASMA DISPLAY
SC12
PDP
LVDS OUTPUT
PANEL
0301
4680
16
6
SDA-1_3V3
18
7
SCL-1_3V3
4684
ERR
30
PW_SDA
PW_SCL
Item
Diagr.
7798
SC13
7812
SC14
7540
SC8
7530
SC8
7570
SC9
7370
P3
7430
SC7
7580
SC9
7225
SC5
7170
SC4
7280
SC5
7656
SC11
Black
P
box
Black
P
box
Black
P
box
Black
P
box
Black
P
box
Black
P
box
CL 36532011_019.eps
210303

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