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Block Diagrams, Testpoint Overviews, and Waveforms
Block Diagram Video
VIDEO
PIP
F2
PIP TUNER IF
MULTISTANDARD VIDEO DEMODULATION
+5VA
5001
1000
1002
UV1316/A 7
9
1003
F002
VST
11
IF
ERR
4
PIP
TV
+
TV TUNER
AGC
5
4
1
TUNER_AGC
7001
SEL_P_N
3002
3001
TO
SSIF
AUDIO
SEE BLOCK DIAGRAM AUDIO
PART
A4
HERCULES
7200-A (IF)
A4
TUNER IF
A2
VT_SUPPLY
7003
9002
SSIF
+5V
6001
BZX79-C33
9003
5001
PHASE
+5VS
1000 6 7
8
9
DISC
VT
F002
10
1002
FM-RADIO
ERR
FM
1003
FM
10
TUNER
VIF_1
F004
105
+
11
IF
VIDEO
TV TUNER
TV
VIF_2
104
IF
AGC
5
4
1
I002
3001
RF_AGC
A4
SDA
98
TUNER IF
I001
AGC
3000
A4
SCL
1004
SIF1
100
7001
AUDIO IF
FILTER
SIF2
99
QSS/AM
A4
SEL-LLPIM
SELECTION
A8
REAR I/O SCART (VIDEO PART)
SW_SC2_CVBS
SCART 1
SC1-CVBS-OUT
21
7701
SC1-CVBS-IN
20
19
SC1-FBL
16
15
SC1-RED-IN
SC1-GREEN-IN
11
SC1-STATUS
8
A5
7
A4
SC1-BLUE-IN
7606
SC1-R/G/B
7607
SW_SC2_CVBS
SCART 2
SC2-CVBS-OUT
21
SC2-Y/CVBS-IN
20
SC2-CVBS-OUT
19
16
SC2-CHROMA-IN
15
11
SC2-STATUS/ITV_MSG
8
A4
7
SC2-CHROMA-IN
D
A5
SIDE AV
CONNECTION
1252
1207
SIDE_CHROMA_IN
Y
7
7
6
6
2
3
SIDE_Y/CVBS_IN
C
5
5
SVHS
1
4
5
VIDEO
IN
L04E AA
F1
PIP-PROC.
1201
7242
SDA9488X
7201
TDA9887
15
19
7202
VIF_1
1
VIDEO
VIDEO
17
CVBS1_PIP
28
PLL
IF
VIF_2
2
INPUT
DEM.
24
SWITCH
26
14
AGC
1219
ERR
ERR
INTF_CVBS_IN
1
3
16
4
INTF_CVBS_OUT
9
11
10
4
VD
2
3207
SYNC.
AGC
SDA
PROC.
ADJ.
3
HD_PIP
3
3206
SCL
A5
CONN.
1219
INTF_CVBS_IN (NC)
5
INTF_CVBS_OUT
9
VD
7
HD-PIP
SEE BLOCK DIAGRAM DEFLECTION
8
7200-B (CVBS I/O + FILTERS + COLOUR DECODING)
SC1_CVBS_OUT
86
SWITCH
SW_SC2_CVBS
81
VCO
PLL
SC1_CVBS_IN
74
SOUND
VIDEO
SC2_Y/CVBS_IN
71
TRAP
DEMOD
SIDE_Y/CVBS_IN
78
CVBS1
PLL
SC2_CHROMA_IN
70
SIDE_CHROMA_IN
FM/QSS
77
SOUND
TO
MIXER
AUDIO
PART
AM
AM
SOUND
See block
diagram
DET.
AUDIO
F205
F206
F201
2V / div DC
F203
2V / div DC
500mV / div DC
1V / div DC
10ms / div
20 µ s / div
216
217
218
1V / div DC
1V / div DC
1V / div DC
20us / div
20us / div
20us / div
A4
HERCULES
7200-D (YUV PROCESSING)
WHITE/BLACK
Y
STRETCH
Pr
GAMMA COR.
PEAKING
Pb
TINT CONTROL
SATURATION
SKINTONE
SCAVEM
PROC.
6.
22
18
INTF_PrRED_OUT
Y
R
R
MULTI
RGB
FAST
17
INTF_Y/GREEN_OUT
G
G
ADC
STANDARD
MATRIX
DAC
RGB
DECODING
SWITCH
16
INTF_PbBLUE_OUT
UV
B
B
15
INTF_FBL
11 12 13 6
5
12
1220
1
1
1241
3244
SDA
2
NC
2
3243
3
SCL
OUTPUT
65
SWITCH
INTF_CVBS_OUT
Yint
Yint
CVBS/Y
INPUT
COMB
SWITCH
FILTER
&TRAP
Uint
SWITCH
PAL, NTSC
CHROMA/CVBS
C
SECAM
DECODER
Vint
VIDEO
IDENT
F240
F241
F242
F331
F332
500mV / div DC
500mV / div DC
500mV / div DC
500mV / div DC
500mV / div DC
20 µ s / div
20 µ s / div
20 µ s / div
20 µ s / div
20 µ s / div
224
225
226
338
339
500mV / div DC
500mV / div DC
500mV / div DC
50V / div DC
50V / div DC
20us / div
20us / div
20us / div
20us / div
20us / div
7200-E (RGB PROCESSING + CATHODE CALIBRATION)
FROM µP PART
R
BLUE
CLAMP
STRETCH
RGB
G
OSD
+
&
ADDER
INSERTION
MUTE
CONTRAST
B
R_Y
G_Y
MATRIX
B_Y
64
H
LTI/CTI
7611
7610
TDA8601T
TDA9178T
7630
7635
1214
INTF_Y_OUT
2
CLAMP
12
6
1
INTF_Y
6
3-STATE
YIN
1212
CLAMP
LTI/C+I
5
INTF_U_OUT
3
CLAMP
11
8
3-STATE
UIN
PROC.
3
INTF_Pb
7
CLAMP
1
INTF_V_OUT
4
CLAMP
10
9
3
5
INTF_Pr
3-STATE
VIN
8
ERR
CLAMP
15
15
6
13
3-STATE
NC
14
SC
5
16
PULSE FORMER
1216
1
INTF_FBL
A5
1214
F224
1
1212
1212
1215
INTF_Y_OUT
1
1
3
F225
INTF_U_OUT
2
2
F226
INTF_V_OUT
3
3
SC1_R/G/B
SC1_FBL
(RGB/YPrPb/YUV
7200-C
INPUT SWITCHING)
51
50
49
53
54
YPrPb2/
RGB2/
YPrPb3
RGB3
SELECTION
SELECTION
SC1_FBL
DVD
RGB
DVD
TO
TO
TO
DVD
DVD
YUV
Yint
Uint
Vint
52
INSSW3
YUV
SELECTION
RGB
LOGIC
DVD
F333
B1
CRT
500mV / div DC
20 µ s / div
341
50V / div DC
20us / div
A5
F240
F241
F242
1204
1331
3226
42
BOUT
1
1
B
BRIGHTNESS
3227
+
CATHODE
OUTPUT
43
GOUT
2
2
G
PEAK WHITE
CALIBRATION
STAGE
3228
LIM.
44
R
ROUT
3
3
IBLACK
4
4
5
5
BC_INFO
45
SVM
6
6
SVM
BEAM
CURRENT
7
7
ROT
LIM.
+200V
46
3351
7308
+200VA
BCL
2351
A2
A4
1351
A5
CONN.
1212
1212
F216
19
Y_2
4
4
INTF_Y/GREEN_IN
YOUT
17
Pb_2
6
6
INTF_Pb/BLUE_IN
UOUT
16
Pr_2
8
8
INTF_Pr/RED_IN
VOUT
F217
F218
1
SEE BLOCK DIAGRAM
DEFLECTION
INTF_FBL
9
9
INTF_FBL
A4
SANDCASTLE
10
10
SANDCASTLE
A4
SEE BLOCK DIAGRAM
DEFLECTION
1206
1206
1
SDA
SDA
1
1
E
3
SCL
SCL
3
3
D
A4
INTF_BBL
INTF_BBL
6
6
SEE BLOCK DIAGRAM CONTROL
55
57
58
59
DIGITAL SIGNAL PROC.
- 4:3 LINEAR/NON-LINEAR SCALING
- DOUBLE WINDOW PROC.
ADC
DAC
YUV
TO
DVD
Y
Pr
Pb
B2
SCAVEM
FILAMENT
1381
1
ROTATION
ROT
ROTATION
2
COIL
OUTPUT
(OPTIONAL)
FILAMENT
VSVM
1361
1
SCAVEM
SVM
SCAVEM
COIL
2
OUTPUT
(OPTIONAL)
+200VA
F331
7330
F341
3332
1332
3
7
B
AQUADAG
11
F332
F338
3334
B
1
9
G
6
G
CRT
8
F339
3336
R
2
8
R
10 9
5 7 1
F333
5
25kV
VSVM
FILAMENT
5352
EHT-b
A2
FROM DEFLECTION
E_14480_085.eps
1
1351
2
3
4
5
280504
to 1401
A2
DEFLECTION
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