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Block Diagrams, Testpoint Overviews, and Waveforms
Block Diagram Audio and Video
A1
TUNER + VIF
A 3
+VTUN
+5VSW
1328
2321
VIF2
4327
2
7
1302
6,7
9
F306
11
TV
VIF1
4331
8
3
10
FM
F305
3311
4
5
1
SCL
RF_AGC
A2
SDA
A2
2
1
6323
1330
3
4333
7
S IF2
2
1301
7316
S IF1
4334
3
8
3323
SSIF
+5VSW
A2
7320
SEL_IF
A2
A17
REAR IO SCART
A 3
10
SC1_CVBS_IN
SCART 2
21
SC2_Y_IN
20
Y/CVBS-In
16
MON-Out
15
SC2_C_IN
15
C-In
7138
EF
16
SC2_CVBS_MON_OUT
P50
Status
P50
L-In
STA TUS_2
12
L-Out
12
SC2_LR_MON_OUT
2
L
R-In
11
1
R-Out
11
R
SC2_LR_IN
SCART 1
21
20
CVBS-In
10
7119
EF
9
SC1 _CVBS_RF_OUT
9
TER-Out
SC1_FBL_IN
FBL-In
7
R-In
7
SC1_COMP_R_V_IN
6
G-In
6
SC1_COMP_AV1_G_Y_CVBS_IN
5
SC1_COMP_B_U_IN
Status
B-In
5
STAT US_1
L-In
SC
1_COMP_AV1_LR_IN
L-Out
2
2
R-In
1
2
1
R-Out
L
SC1_LR_RF-OUT
1
R
Const_LR_OUT
L
LR
R
AUDIO-OUT
HP_DET_IN
D
SIDE I/O
0936
1336
SVHS_C_IN
C
4
4
Y/CVBS
SVHS _AV2_Y_CVBS_IN
4
3
2
2
SVHS
2
1
SVHS_LR_IN
5
HP_LROUT
CVBS
6
6
L
8
8
R
FRONT_DETECT
7
7
10
10
L
R
11
11
A6
TV SUPPLY
+12VSW
LC4.6E AA
A2
HERCULES
SYSTEM
7011
PAL-MULT I/SECAM
TDA12021
A 4
NTSC
TDA12001
CHINA/NTSC-AP
TDA12011
7011 - IF
25
Sound
CVBS1
24
Tr aps
31
AGC
Detect
CVBS/Y- X
30
QSS/FM
QSS Mixer/
29
AM Demod.
AM
C-X
P50
STAT US_2
STAT US_1
A2
CONTROL
SC
1_CVBS_IN
55
SVHS_AV2_Y_CVBS_IN
58
SC2_Y_IN
51
SVHS_C_IN
59
SC2_C_IN
52
SC2_CVBS_RF_OUT
43
SC2_CVBS_MON_OUT
64
SC1_FBL_IN
SC1_COMP_R_V_IN
SC1_COMP_AV1_G_Y_CVBS_IN
SC1_COMP_B_U_IN
5010
2055
Y_NOTCH
7004
A7
SC2_LR_MON_OUT
SC2_LR_IN
SC1_COMP_AV1_LR_IN
SC1_LR_RF-OUT
Const_LR_OUT
HP_DET_IN
A5
36
SVHS_LR_IN
HP_LROUT
45
A5
7930
1
8
S Q
A1
SSIF(Tuner FM)
R
2
7
3
OSC
6930
4
REF
SC1_COMP_AV1_LR_IN
VCC
F915
5
SVHS_LR_IN
+5VSW
SC2_LR_IN
5930
F912
6
3910
+VTUN
A12
AudioIN2LR
6910
7910
6911
SC2_LR_MON_OUT
7920
SC1_LR_RF_OUT
5920
1
3
+8VSW_TV
2921
F913
Const_LR_OUT
2
6.
18
Input
sw.
RGB Matrix
Blue & Black
cvbs/y
Gamma Corr.
Y
int
Dig. 2H/4H
INA..D
Combfilter
Skin Tone
Y Delay Adj.
Chroma
Saturation
c
PA L/NTSC/
U
int
SECAM
CS1A..D
H/V
Decoder &
V
Baseband
int
SCAVEM
Delay
U/V Delay
Output
sw.
RGB/YP
P
Insert
+
R
B
YUV Interface
cvbs
77
78
79
80
74
75
76
70
7562
6
8
9
5560
Pix Improvement
1
3
+8VSW_2
20
+12VSW
(Histogram)
7560
2561
TDA9178T
2
A4
AUDIO DELAY LINE (LIPSYNC)
7585
7580
7581
7582
7583
2
8x
8x
7x
8x
7x
COUNTER
COUNTER
"D" F.F.
RAM
7x
8x
A2
HERCULES
7011 - SOUND
QSS/FM
I2S Proc
AD Conv
Std Stereo
33
Decoder
Audio
Control
Vol/Treb/
Bass
34,35
Features
DACs
49,50
Audio Select
ADC/DAC
56,57
53,54
36,37
7370
CON
BRI
85
RO
7013
RGB Matrix
EF
Blue & Black
GO
86
Stretch
Stretch
87
BO
Gamma Corr.
A3
HISTOGRAM
U/V Tint
2020
SAT
7018
YUV
7016#
8
Peaking
SCAVEM
VCC
6
2
on Text
THR
TR
cvbs/y
4
RES
7
DISC
3
OUT
YUV IN/OUT
CTRL
HOUT
67
Sync Sep
5
H-OSC
2051
2028
H-Shift
H/V
FB/SC
66
H-Drive
2022
7019
3058
VDRA
23
7017#
Vertical & East-
3346
West Geometry
6
VDRB
22
THR
7
DISC
71
72
2034
7561
7563
SC
SANDCASTLE
PROC.
SAND
16
17
19
CASTLE
1
A5
AUDIO
SA3
AUDIO
SDA
14
AMPLIFIER
A2
SCL
11
1752
1739
I722
AUDIO_R
3
3
AUDIO_R
2
2
4
4
5
5
N.C.
7584
AUDIO_L
AUDIO_L
1
1
+16V+19V
-16V-19V
6
6
N.C.
NC
PROTECT_AUDIO
7
7
PROT
8x
SOUND_
A9
"D" F.F.
SOUND_ENABLE
ENABLE
4590
8
8
15
POR-AUDIO
POR_CLASSD
9
9
3753
AUDIO_R
+3V3STBY
3752
7377-A
AUDIO_L
77
40
1:1
A
UDOUTLSL
6
AUDOUTLSR
2
61
7376-A
1:1
60
7713
SOUND_ENABLE
SOUND_ENABLE
A2
7714
62,63
POR_AUDIO
+3V3STBY
A6
POWER_DOWN
7706
14
7376-B
7377-B
12
11
A2
EXT_MUTE
13
7371
7372
OUT_MUTE
7014
EF
R_SDTV
A13
G_SDTV
A13
7012
EF
B_SDTV
A13
+5VSW
I354
7015#
8
VCC
6
2
THR
TR
1V
/ div DC
20us
/ div
4
RES
7
H_CS_SDTV
DISC
A13
OUT
CTRL
3
I354
5
2042
2021
SANDCASTLE
# = NE555 TIMER
+5VSW
8
VCC
2
TR
4
RES
V_SDTV
A13
3
OUT
CTRL
I357
5
2047
I357
1V
/ div DC
5ms
/ div
-16V-19V
+16 +19V
7700
I778
TDA7490
24
22
1735
5702
1
R
18
23
PWM
15W/
3
8R
3717
STBY-
6
OSC
MUTE
I776
1736
5701
1
10
3
L
PWM
15W/
3
8R
I711
3718
2
4
-16V-19V
7701 : 7707
+16V+19V
+16V+19V
SOUND
ENABLE
PROT1
A2
HP_LOUT
7
HP_ROUT
1
7708
3707
7710
AUD_SUP
E_14710_012.eps
230604
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