Text preview for : ak30 Circuit description.pdf part of Funai AK30 Schema Elettrico ( Manual Service )
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FEATURES
·It is a remote controlled colour television ·100 programmes from VHF, UHF bands or cable channels can be preset ·It can be tune cable channels ·Controlling the TV is very easy by its menu driven system ·It has Euroconnector socket for external devices (such as computer, video, video games, audio set, etc.) ·A second Euroconnector* socket is available ·Stereo sound systems* (German, Nicam or German+Nicam) are available ·Virtual Dolby* ·Full function* Teletext (Fastext, Toptext) ·It is possible to connect headphone* ·Direct channel access* ·A.P.S.* (Automatic Programming System) ·All programmes can be named. ·Programme swapping between last watched two programmes. ·Forward or backward automatic tuning. ·Sleep timer. ·Automatic sound mute when no transmission. ·When no valid signal is detected, after 5 minutes the TV switches itself automaticall to stand-by mode. ·WSS* (Wide Screen Signalling) ·NTSC Playback*
* optional
L PLL/VST TUNER UV1315/16 STEREO SOUND MSP 34X0D/G R
L AUDIO AMP TDA7266 TDA7266L(MONO) R
I2 C QSS SERVICE CONNECTOR EEPROM IF MONO
HP AMP TDA1308
CRT
µ CONTROLLER
ST92195
VIDEO PROCESSOR STV2248C
RGB AMP TDA5112A
KEYPAD IR SENSOR +115V B+ SMPS MC44608 +12V +8V +5V +5V STBY SCART1 SCART2 SVHS FAV/BAV VIDEO SWITCHING CIRCUITS VER AMP TDA8174AW HOR DRIVE BU808DF VER. DEFL.
HOR. DEFL. FBT
+22V
D 807
PTC
DEGAUSS COIL
TR 802
D 805
IC 803
+8V +5V_UPA
10 R 828 4 VCC 12 11 13 15 16 18 17 D 810 R824 D 806 D 803 IC806 IC 804
+5V_UPD +5V +12V_A +33V 115V(B+)
D811, 813, 837, 838
3 6 VIN
R809 D800 D 809 D 890
7 DRAIN
D 808
Q803
R 801 START UP
D889 MCR22_6 Q802
B+-P
MC44608 1 DMAG 2 I_SENSE 3 CONT_IN 4 GND VI 8 7 VCC 6
D804
STANDBY Q801 IC 801
4 1
DRIVER 5
IC 800
SFH617A
3 2 IC118 TL431
R830
Q804 STANDBY-INV
1 MP
2 A1
3 A2
4 VSS
IC 501 ST92195
SVBS2 33 CVBS1 34
CVBS_TXT CVBS1
IC 500
VDD 8
ST24C08
PTC
SCL
SDA
TU 201
+5V_UPD
21 VDD
7
6
5
38.9MHZ_TVTUN
AGC SCL SDA VST
IF 2 10
+5V_UPD
D505
19 P5.1_5DI_500 18 FB
AGC_OUT
1
2
3
4
5
6
7
8
9
BAND2
HCTR FB_OSD D506 17 R 16 G BAND2 SERVICE CONNECTOR 5 4 3 2 1 PL501 IR_IN SCL SDA SERVICE PIN BAND1 BAND0 +5V +5V +5V 15 B 14 BAND2 13 BAND1 12 BAND0 4 P0.6 8 P0.2
SCL BAND1 SDA BAND0
HSYNC 40 VSYNC 41 P4.4_PWM4 46
H_SYNC V_SYNC MUTE +5V
+5V
IF_2 IF_1
(R-G-B)_OSD
STANDBY
S509
P4.5_PWM5 47
Q 503
STANDBY-INV
OSCOUT 50 OSCIN 51
X 501
Q 502
+5V_UPD KEYPAD
Q504
2 RESET P2.3_INT6_VS01 54
TSOP1736
VD 3 VS 2 GND 1
1
IC 502
+5V
P2.2_INTO_AIN2 55 P2.1_INT5_AIN1 56
D106 33V ZENER
AV1_S AV2_S
+33V
IR_IN
IF 1
11
20 P0.5_SCK
AS
VT
VS
Z401 IF_1
IC 403
SAW 1 SIFIN1 2 SIFIN2 3 4
TV PROCESSOR - STV 223x
56 AUDIOOUT 55 GNDD VCCD 54 53 52 51 50 49 HOUT VOUT BCL_SAF VCC1 48 47 46 45
A_OUT
IC 401 OUTOUT+ VCC
10 9 8 7 6 5
IC 301
15 14
+5 V SDA SCL
PL302
2 1
Z402 IF_1 IF_2
SAW
5 6 PIFIN1 7 PIFIN2
L
VCC2 13
12 11 10 9 8
MOUT- L QSS EXT_AO
AGC_OUT
8 TUNER AGC_OUT 9 10 11 AM_FMOUT _SC 12 13 INT CVBSOUT
HOUT VOUT BCL +8 V CVBS OUT VAMP X401 X402 X403
STBY
4 3 2 1
STBY MUTE IN1 VCC1 OUT1OUT1+ TDA7266M
7 6 5 4 3 2 1
+5 V MUTE AOUT MOUT- R +12 V
2 1
CVBSOUT 44 43 VAMP 42 41 XTAL1 40 XTAL2 39
Z404 Z403
EXT_AIN
TRAP
14 EXT AUDIO IN 15 16
TDA7266L
+8 V
17 VCC2 18 CVBS IN1
R SC1_CVBSIN
19 20 CVBS IN2 21 22
XTAL3-BTUN 38 37 ROSD GOSD BOSD 36 35 34
PL301
(R-G-B)_ OSD +8 V PL405
6 5 4 3 2 1
CHRM
23 CHR 24
ICATCH 33 ROUT GOUT BOUT 32 31 30 29
(R-G-B)_ VEST
25 BEXT_UEXT 26 GEXT_YEXT 27 REXT_VEXT
FB_VEST
28 FBEXT
VESTEL BUS AUDIO IN
QSS X 700 +5 V
PL 702
1 2 3
+8 V
64
STBYQ ANA_IN1+
AVSUP
XTAL
IC 700
DVSUP
AHVSUP
63 62 OUT IN
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
R L SC1_IN
R L SC2_IN
R L SC3_IN
L R SC1_OUT DACM R L
27 28 29 30
L R SC2_OUT
DACA R L
19 20 21 22 23 24 25 26
MSP 3410D_DIP
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
31
32
+5 V SCL SDA +5 V R L MOUT
IC 701
PL 700
1 4 VSS 3 INA+ INB+ 5 INB- 6
HP
2 3
2 INA- OUTB 7 1 OUTA VDD 8 TDA1308
+5V
JK4 YELLOW_FAV
SC2_AOR SC2_AIL SC2_AIR
SC2_AOL AV2_S CHRM
AUDIO R
1
3
15
SC1_AIR
PL 101
23 22 24
27 28
29 32 36
37 40 2 1 1 2 3
SC1_AIL
FR/BK VIDEO OUT SC1_AOL SC1_AOR AV1_S R_EXT FA/BK VIDEO IN B_EXT G_EXT FB_EXT SC1_AOR IN OUT JK1 Jack_RCA_6P
PL 106 PL 105
2 1 1
PL 108 PL 107
2 3
SC1_AOL
FR/BK_A_I_R
FR/BK_A_I_L
AUDIO L
2
6
8
FR/BK VIDEO IN
JK2 IR_RED_FAV
JK3_ WHITE_FAV
BUFFER _OUT
GND
IC 600
1
2
3
4
5
6
7
8
9
10
FLYBACK_GEN
11
POWER_OUT
HEIGHT_ADJ
TRIGGER_IN
RAMP_GEN
INVERT_IN
OUT_VS
VS
+26 V
V_amp
+8V
VOUT_1
C643
Vert_out
Q606
VOUT_2
TR 601
D 614 X_RAY
5
EHT BCL FOCUS G2
2 10 13 8
15 V
6 7
+14 V_HOT
VIDEO_B+ D 608 B+ Q603 PL 601 HDEFL YOKE VDEFL YOKE
4 3 2 1
200 V
9 4 3 1 12 11
NC EHT INFO PL 602
1 2 3 4
Q601 H_OUT
HEATER
VOUT_2 V _1 OUT
D 610
+26 V Video_B+
+8 V (VCC)
IC 901
B_IN
STV5112 - RGB VIDEO AMPLIFIER
G_ OUT B_ OUT
11 12 13 14
R_OUT
6 7
G_IN
R_IN
VDD
1
2
3
4
5
GND
8 9
10
15
PL 900
1 2 3 4 5 6
R G B (R-G-B)_CAT_CUR
1
PL 901 PL 903 CRT
+8 V
PL 902
4 3 2 1
1
1
PL 905 - SCREEN
200 V
GND F2 - FOCUS
PL 904 - AQUA
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