Memorex MT2025D Support Question
Memorex MT2025D Support Question
Find answers below for this question about Memorex MT2025D - 20" CRT TV.Need a Memorex MT2025D manual? We have 1 online manual for this item!
Question posted by shamekiadavis35 on October 10th, 2012
I Have A Memorex I Just Want To Know How ,much Is It Worth
how much is my memorex 20 inch tv worth
Current Answers
Related Memorex MT2025D Manual Pages
Service Manual - Page 1
com. cn SERVICE MANUAL
Colour Television
Haier model:
21F7A
Customer model:
MT2025D
l FEATURES
l DVD-TV 21" COMBO l AUTO TUNE/181 CHANNES l DVD/VCD/SVCD/CD/CD-R/CD-RW/JPEG/MP3 COMPATIBLE l FORMATO DE VIDEO 4:3PS、4:3LB l DOLBY AC-3 DECODE l ...
Service Manual - Page 2
Replacement of memory IC 5 4. Test point waveform 10 7. com. Safety precautions 3 2. All ICs voltages 10 8. TV block diagram 4 3. cn f i nepr i nt .
Service adjustment 5 5. ICs functional description 8 6. Purity / convergence adjustment 11 9. DVD maintenance 13
2
PDF pdf Fact or y Pr o www. CONTENTS
1. .
Service Manual - Page 3
... product is
partly different in the products have special safety-related characteristics. Should the TV screen become soiled, wipe it with a thin film which does not have these special...re-assembling the product, always perform an isolation check on the exposed metal parts of the TV screen is
shown by visual inspection (incorrect installation, cracked or melted high voltage harness, poor...
Service Manual - Page 5
...above adjustment.
0
PDF pdf Fact or y Pr o www. com. cn 3. This TV uses memory IC. If the value is in sequence to get the picture horizontal centre correspond ...: 1) Press "MENU" "8" "8" "9" "3" buttons in proper condition. While watching the screen, adjust the FOCUS VR on CRT.
e) Adjust H PHASE, to get 92% of corresponding factory menus. f i nepr i nt .
Adjustment steps： ...
Service Manual - Page 6
...on Fly back
transformer to make the screen show alternating flashing characters to noise reduce gradually and just disappeared point. b) White balance adjustment
1. Adjust RC, GC, BC,RD,BD items to...(1mV) VH colour bar pattern signal. A3. Select RF AGC item. CRT cut off and white balance adjustment
a) CRT cut off adjustment
1.
voltage is normal
Abnormal Test to see all terminal
...
Service Manual - Page 8
...
Not exist
Check to see if RAGC is at IC401 is
open . cn Inspect peripheral component of IC401 with customer remote controller. Noise on picture just disappears. No
Inspect SAW101、 IC201and PIF part
Yes
Antenna or tuner is at tuner
Yes
Enter D-MODE with
black probe. Maintenance Service and Trouble...
Service Manual - Page 10
... Items
P1：
Items
H PHASE V SIZE V POS
0 ~ 31 0 ~ 63 0 ~ 7
V LIN
0 ~ 63
V SC PARABOLA TRAPEXIUM H SIZE CORNER 注：
0 ~ 63 0 ~ 63
0 ~ 63 0 ~ 63 0 ~ 63
Preset
14 20 2
29 32 32 32 32 40
Remark
★ ★ ★
Description Horizontal shift Vertical amplitude Vertical shift
Vertical slop
S emendation
S-correction
Echclon distortion correction
Horizontal...
Service Manual - Page 11
... = Y；OFF = N Portugal OSD ON = Y；OFF = N DVD signal format，0:CVBS；1:YC；2:YUV；3：hold Power off DVD off delay time Tv to DVD black screen time
P7：
Items
ON DLY T 0 ~ 15
AVS MUTE TIM 0 ~ 255
LOGO COLOR 0 ~ 7
LOGO
0 ~ 1
INT AUDIO 0 ~ 1
BTSC
0~1
FAC SW
0 ~ 1
POW MD...
Service Manual - Page 12
...(5.0) EXT 1 IN/YIN YC/YIN Y CbCr 5.7V REG OUT VIF VIDEO OUT VIF GND
PIN 1 2 3 4 5 6 7 8 9
10 11 12 13
14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29
30 31 32
33 34 35
SP00/14bPWM SP01/PWM SP02/PWM SP03/PWM TEST0 P04...
Service Manual - Page 14
... supply Input
5. Test point Waveforms
2.6Vpp
1.2Vpp
3.8Vpp
2.5Vpp
2.5Vpp
H R2J10165GC
95Vpp
H
R2J10165GC 95Vpp
H
R2J10165GC 95Vpp
H
R2J10165GC 0.9Vpp
H
R2J10165GC 5Vpp
H CRT KR
1Vpp
V R2J10165GC
H CRT KG
0.8Vpp
V R2J10165GC
H CRT KB 1.3Vpp
R2J10165GC
H R2J10165GC
H R2J10165GC
9
PDF pdf Fact or y Pr o www. cn f i nepr i nt . 3. IC701: Sound power amplify (TFA9800J)
Symbol...
Service Manual - Page 15
... voltages
R2J10165G
PIN 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 V 0 0.02 4.9 0.03 0 4.72 0.04 0.15 2.05 8.04 2.99 2.36 3.2 5 0.83 0.93
PIN 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 V 0 2.04 1.15 1.15 2.97 3.2 0 3.76 3.91 5.59 2.28 8.73 3.29 1.97 5 2.73
PIN...
Service Manual - Page 16
... of the purity magnets on the short lug and position them horizontally.
com. Remove the wedges.
4. Insert the wedge to green raster.
5. WEDGE DEFLECTION YOKE
P
CRT
4 6
P/C MAGNETS P: PURITY MAGNET 4: 4-POLES (convergence magnets) 6: 6-POLES (convergence magnets)
Fig. 1
PURITY MAGNETS Long lug
Short lug
Bring the long lug over the short lug and...
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