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Block-, wiring diagrams and testpoint overviews. EM1A 6. 27
6. Block-, wiring diagrams and testpoint overviews.
Block diagram video processing
BLOCK DIAGRAM VIDEO PROCESSING
TUNER, I/O, IF, I/O, 1406 B7 B7 CONTROL
A7 B2 7411 1407 7322 B6 B3 FEATUREBOX B4 VIDEO CONTROL+ B1 SIM CONN. A7 SIM CONN.
CVBS-TXT-OUT
SIMM-CONN. VIDEOPROC. EF EF 7307 7716 GEOMETRY 7313 : 7315
FBL-TXT
SOUND FROM
7320 TDA9181 7412 SCART1 PLCC32
G-TXT
FILTER
R-TXT
B-TXT
FBL-TXT
EF EF
+5V CVBS-TER COMB
FILTER R G B EEPROM
+33V -OUT 12 14 DW PANEL
I6 V1 V2
C1 TUNING
VOLTAGE
1940
6200 16 V24 V26 7340 3230
5200 BZM55-C33 - PICTURE - 7323 1
TDA9320H 10 12 13 14 26 29 28 41 42 43 36 37 38 V25 1000 1923 +33V
7709 7301 V27 BCI
I5 HIP SAA4978H TDA9330H 35 36 37 38 B7 32 HFB-X-RAY-PROT 2
1200 7.3 9 B4 3
SAW FILTER PICNIC HOP
I1 1946 0302 43 33 EHT-INFO 4
VIF1 2 RGB
11 IF 1 1 PLL GROUP V6 V18 7803
MAIN ERR VIF2 3 DELAY MATRIX 1682 0205 0205 1682
DEM TDA8601 F25 S5 V14 V19 V28 41 Y-SCAVEM 5
TUNER 13 COR. Y U V 5530 1 1 2 5655 Y-PIP-MAIN-IN 3755 3747 2323 3340 6
2 2
1408 12 6 6 23 Y 12 Y100 28 RGB R 40 R-CRT 25 R-CRT +11D 7
Y50 DY 6 INSERTION
5 4 1 1409 V7 V16
62 Y 49 F26 7 V29
Y V12 V16 V20 Y/U/V
1923 1000 TUNER AGC Y PROC. Y/U/V U 50 5642 3 3 3 OUTPUT 3341
3201 3200 AGC
- SOUND - 11 8 8 5654 U-PIP-MAIN-IN 3757 25 3X SIGNAL 3X U 14
3748
U100
2322
27 RGB AMPL. G 41 G-CRT 24 G-CRT 8
15 15 SWITCH V 51 U50 DU 7 MATRIX
V8 V17 ADC PROC. DAC
CATHODE V30
F27 V13 V15 V21
SAW FILTER VIDEO U V 5643 CALIBR. 3342
4 4 4 5645 V-PIP-MAIN-IN 3759 3749 2321 B 42 B-CRT 23 B-CRT 9
SWITCH 10 9 9 26 V 15 V100 26
SIF2 64 QSS + V50 DV 8
SDA
SDL
MIXER ERR 44 21 CUTOFF 10
SIF1 63 30 CONTROL Y U V
AM C DECODER
DEMO C PROC. PAL F20 11
SIMM PSS-AM 30
1405 I4 NTSC R RGB 3 E/W DRIVE 31
CONN. ERR 31 ERR E/W TO
SECAM 5 33 N.A. G YUV 32 DRIVE LINE
5
32 MATRIX 26
A3 DEFL.
7309 B
F18
F14 FB S7 S4 7311
F17 2 FRAMEDRIVE - 29 TO
B6 3733 PULSE 23
SYNC V-SYNC 61 VA50 29 V-SYNC 19 VD100 V-DRIVE RAMP
AUDIO SEPAR. PROC. PROC.
FORMER
PROC. GEN FRAME 1 FRAMEDRIVE + 28 A4 FRAME
DEFL.
530