6.
Block Diagrams, Testpoint Overview, and Waveforms
I2C Overview
CONTROL
ADOC
TUNER
A7
SSB.
CONN.
B1
A69
A70
I
2
C Overview
SDA0
SCL0
AF6
7300-C
AE6
3511
3513
3523
3581
3515
SDA1
F-REF
0291
0290
IRQ-MPIF
SCL1
+5V2
+5V2
VDDE
VDEE
VDDE
3509
3510
AF7
3512
AD6
AF8
A26
AF2
WC
B11
7025
M24C64
(NVM)
EEPROM
7790
M58LW032A
RAM
FLASH
CONN.
DATA
FLASH
CONN.
ADDRESS
ERR
13
ERR
14
ERR
11
5
7
6
3201
5
4
3200
3261
3262
1200
TUNER
TEDE9
1205
SDA-S
SCL-S
0230
48
49
1
2
3
1943
COMPAIR
CONNECTOR
FOR SERVICE
(REACHABLE VIA
HOLE IN REAR
COVER)
CL 36532058_004.eps
030903
A8
B18
MPIF
B1
B4
F509
F508
DATA
ADDRESS
B12
7100-D
MPIF
43
40
42
44
DIGITAL
BLOCK
7300-E
7300-k
Error Description
0 No
error
1
Horizontal Protection (via NOHFB bit in ADOC)
3
+8V error (missing/protection active by checking MPIF ASUP bit))
4
X-ray/High beam current protection signal (via XPROT bit in ADOC)
5
Hardware Protection is active (same as EMG)
7 Under-voltage
protection
11
MPIF I2C communication failure / MPIF test failed
12
BC-loop not stabilised within the time limit (i.e. after timer is expired)
13
NVM I2C communication failure
14
Main tuner I2C failure UV13xx
17
3D Combfilter I2C communication failure
18
PIP Tuner I2C failure
19
2fH component input I2C failure (PCF8574)
21
PIP IF demodulator IC TDA988x communication failed (only for PIP/DW Sets)
22
Flash over protection error (to register CRT flash-overs, via FPR bit in ADOC)
Содержание A02E
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