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PDF 29TC649 Data sheet ( Hoja de datos )
| Número de pieza | 29TC649 | |
| Descripción | Colour Television SERVICE MANUAL | |
| Fabricantes | NOBLEX | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de 29TC649 (archivo pdf) en la parte inferior de esta página. Total 36 Páginas | ||
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NOBLEX
SERVICE MANUAL Colour Television
FILE NO.
Model No. 21TC647
29TC649
(Argentina)
Service Ref. No. 21TC647-00
21TC647-01
29TC649-00
NOBLEX
NOBLEX
Specifications
Power Source . . . . . . . . .AC110V-240V, 50Hz / 60Hz
Receiving System . . . . . .PAL (M/M, N/N), NTSC (M/M)
Channel Coverage
Antenna mode VHF: CH02-CH13, UHF: CH14-CH69
CATV mode VHF band: CH01-CH13, Mid band: CH14-CH22
Super band: CH23-CH36, Hyper band: CH37-CH64
Ultra band: CH65-CH94 and CH100-CH125
Low mid band: CH95-CH99
Video IF . . . . . . . . . . . . .45.75MHz
Aerial Input Impedance . .75Ω
Ext. Terminals
Video inputs: Phono jack ! 2 (1Vp - p, 75Ω)
Audio inputs: Phono jack (R/L) ! 2 (436mVrms, more than 40KΩ)
Headphone Jack: Mini stereo jack ! 1
Sound Output (RMS) . . . .3W + 3W
Speakers . . . . . . . . . . .5cm ! 9cm ! 2
Dimensions . . . . . . . . .Model 21TC647: 606 (W) ! 483(H) ! 479(D)mm
Model 29TC649: 656 (W) ! 496(H) ! 600(D)mm
Weight . . . . . . . . . . . . .Model 21TC647: approx. Kg
Model 29TC649: approx. Kg
Specifications subject to change without notice.
Product Code: 1 113 549 00 (21TC647)
1 113 550 00 (29TC649)
Original Version
Chassis Series: LA4-A
Give complete “SERVICE REF. NO.” for parts
order or servicing. It is shown on the rating
plate at the cabinet back of the unit.
This T.V. receiver will not work properly in
foreign countries where the television trans-
mission system and power source differ from
the design specifications. Refer to the specifi-
cation table.
C4BA/C4BAS/C4CA
1 page  
IC Block Diagrams
IC201 < IF/Video/Chroma/Def. > QXXAVB488
AUDIO
OUT
45 14 10 9 23 30 18 20 19 28 41 22 21 24 25
27
EXIT AUDIO 47
IN
AUDIO
DIRECT
OUT
AF DC
FB
48
46
12 H OUTPUT
16
H-OSC
1
GND
VIF
SIF
VCC 8
SIF IN 3
42
HI VCC
IF OUT
52
IF APC
51
IF VCO
IF VCO
50
49
5
4
IF AGC OUT
67
2
VIF IN
AFT
9
BLACK
PEAK
31 38
ACL/CLK
Y-SW
OUT
-5-
15
11
BLACK PEAK
43
B-Y IN
44
R-Y IN
13 DEFLECTION
GND
32
X TAL 3.58
40
X TAL 4.43
37
VIDEO
GND
26
VIDEO
VCC
35
COLOUR APC
29
IDENT FILTER
33
KILLER FILTER
39
SYNC IN
34
EXT IN
36
TV IN
5 Page 
Service Adjustments with Replacing Memory IC(IC802)
Item 01 [H-P] HORIZONTAL CENTRE
(1) Receive the monochrome circular pattern.
(2) Set the brightness and contrast to normal.
(3) Select [H-P] in the service mode.
(4) Change value to be optimum horizontal centre position.
(5) Exit from the service mode.
Horizontal centre
Item 05 [AGC] AGC
NOTE: Do not attempt this adjustment with weak signal.
(1) Tune the receiver to most clearest (or strongest) VHF
station in your area. Set the brightness and contrast
controls to maximum. Set the colour control to mini-
mum.
(2) Select [AGC] in the service mode.
(3) Change value until the snow noise just disappears.
(4) Exit from the service mode.
Item 02 [V-P] VERTICAL CENTRE
(1) Receive the monochrome circular pattern.
(2) Set the brightness and contrast to maximum.
(3) Select [V-P] in the service mode.
(4) Change value to be optimum vertical centre position.
(5) Exit from the service mode.
Vertical centre
Item 03 [V-S] VERTICAL SIZE
(1) Receive the monochrome circular pattern.
(2) Set the brightness and contrast to maximum.
(3) Select [V-S] in the service mode.
(4) Change value to be optimum vertical size.
(5) Exit from the service mode.
Item 06 [VCO] AFT
IC802
MEMORY
TP-D (J146)
IC201
IF /VIDEO/CHROMA/DEF.
MAIN BOARD
(1) Connect DC meter to TP-D and the ground.
(2) Tune the receiver to the clearest station.
(3) Disconnect RF input. (Disconnect antenna plug from
the antenna socket.)
(4) Select same channel. (If you have selected channel 03
in step 2, press “0” button next “3” button on the
remote control to select channel 03.)
(5) Connect antenna plug to the antenna socket.
(6) Select [VCO] in the service mode.
(7) Change value until the voltage (on TP-D) to be
4.5±0.2V at OK point.
NG OK
4.5V ±0.2V
Vertical size
Item 04 [OSD] OSD POSITION
(1) Receive the monochrome circular pattern.
(2) Set the brightness and contrast to normal.
(3) Select [OSD] in the service mode.
(4) Change value to be proper OSD position.
(5) Exit from the service mode.
0 VCO DATA
(8) Exit from the service mode.
±Item 17 [AFCG] AFC GAIN
(1) Switch on the TV.
(2) Select [AFCG] in service mode.
(3) Change data value to “01”.
(4) Exit from the service mode.
255
-11-
11 Page | ||
| Páginas | Total 36 Páginas | |
| PDF Descargar | [ Datasheet 29TC649.PDF ] | |
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