Used ICs -
Tuner-XG6VS96A, KA5Q12XRF [SMPS control], M52797SP [Video Audio Switching],
TDA9181 [Comb filter], BCK-50-0223 [SMPS Transformer], TDA9363PS/N2 OR
TDA9365PS/N2 or TDA9384PS/N2 or TDA9386PS/N2 Sycon chroma jungle [Philips],
TDA9874 [NICAM] TDA9859 [Audio control], TDA8944 [Stereo Audio amplifier],
JF0501-21135[LOT], C5250 [Horizontal Output transistor], TDA4863 [Vertical Amp].
AKIRA CT34P-S9AE CHASSIS 5P60
AKIRA CT-29TW9AN CHASSIS 5P60
AKIRA CT-34TJ9R 5P60 CHASSIS
Note the
following before debug and equipment.
a. The main power is 90~260V/50/60Hz. Please be careful when you debug and equip.
b. Don’t short any two soldering points, which should not be shorted and don’t touch any component, which should not be touched.
c. Pull out plug before equipment.
d. For safety reasons, all components equipped or replaced should be identical with BOM.
e. Must warm up for 30 minutes or more and degauss CRT thoroughly with demagnetizer before alignment.
f. The data of EEPROM must be stored before the adjustment for main chassis.
Tools and equipments for adjustmenta. The main power is 90~260V/50/60Hz. Please be careful when you debug and equip.
b. Don’t short any two soldering points, which should not be shorted and don’t touch any component, which should not be touched.
c. Pull out plug before equipment.
d. For safety reasons, all components equipped or replaced should be identical with BOM.
e. Must warm up for 30 minutes or more and degauss CRT thoroughly with demagnetizer before alignment.
f. The data of EEPROM must be stored before the adjustment for main chassis.
a. Small “-” screwdriver.
b. Screwdriver without inductance.
c. Pattern Generator.
d. DC regulator power supply.
e. Digital Voltmeter.
f. Sweep signal generator.
g. 20MHz 2-channel Oscilloscope.
h. Signal condition.
b. Screwdriver without inductance.
c. Pattern Generator.
d. DC regulator power supply.
e. Digital Voltmeter.
f. Sweep signal generator.
g. 20MHz 2-channel Oscilloscope.
h. Signal condition.
service adjustment
Power
adjustment.
Connect a 100W Filament Type bulb across C616. Then connect AC 220V power to CN601. If the bulb light, the voltage is prescriptive, and there is no fluctuations in voltage, then the power is OK, else be repaired.
Connect a 100W Filament Type bulb across C616. Then connect AC 220V power to CN601. If the bulb light, the voltage is prescriptive, and there is no fluctuations in voltage, then the power is OK, else be repaired.
Go
to factory mode before warm up line.
Method: Press key CLOCK, P.M.’O’ TV SET will go to factory mode.
Method: Press key CLOCK, P.M.’O’ TV SET will go to factory mode.
Press
key 0-9 to entering factory menu. Select the item by “PROG+” and “PROG-“keys.
Adjust by “VOL+” and “VOL-” Keys.
Press “+” key to exit factory mode.
Focus
adjustment.
i. Receive monoscope pattern.
ii. Set TV to work in dynamic status.
iii. Adjust the focus knob of FBT to get the clearest picture.
i. Receive monoscope pattern.
ii. Set TV to work in dynamic status.
iii. Adjust the focus knob of FBT to get the clearest picture.
Screen Voltage Adjustment (KEY 0)
i. Set TV at “TV” “STANDARD” mode, no signal input.
ii. Press key CLOCK, P.M, “O”in turn to entering factory mode.
iii. Press 0 key.
iv. Adjust the screen knob of FBT to get a horizontal faintness beam line.
v. Press other keys to go to the normal work status.
i. Set TV at “TV” “STANDARD” mode, no signal input.
ii. Press key CLOCK, P.M, “O”in turn to entering factory mode.
iii. Press 0 key.
iv. Adjust the screen knob of FBT to get a horizontal faintness beam line.
v. Press other keys to go to the normal work status.
Horizontal Center and EW adjustment (KEY 1)
i. Received 50HZ monoscope PATTERN. Set TV standard status. Adjust
5HSH to obtain horizontal center at the center of CRT screen.
ii. Receive 50HZ cross hatch pattern. Set TV standard status. Adjust 5EWW,
5PWW, 5UCR, 5LCR, 5PAR, 5BOW, 5EWT to obtain picture’s Horizontal
redisplay ratio more than 90% in factory mode.
i. Received 50HZ monoscope PATTERN. Set TV standard status. Adjust
5HSH to obtain horizontal center at the center of CRT screen.
ii. Receive 50HZ cross hatch pattern. Set TV standard status. Adjust 5EWW,
5PWW, 5UCR, 5LCR, 5PAR, 5BOW, 5EWT to obtain picture’s Horizontal
redisplay ratio more than 90% in factory mode.
Horizontal
parallelogram 50Hz
|
5PAR
|
Horizontal
bow 50Hz
|
5BOW
|
Horizontal
shift 50Hz
|
5HSH
|
EW
width 50Hz
|
5EWW
|
EW
parabola /width 50Hz
|
5EWP
|
EW
upper corner parabola 50Hz
|
5UCR
|
EW
lower corner parabola 50Hz
|
5LCR
|
EW
trapezium 50Hz
|
5EWT
|
Receive
60HZ monoscope PATTERN. Set TV standard status. Adjust
6HSH to obtain horizontal center at the center of CRT screen.
iv. Receive 60HZ cross hatch pattern. Set TV standard status. Adjust 6EWW,
6PWW, 6URC, 6LCR, 6BOW, 6EWT to obtain picture’s Horizontal
redisplay ratio more than 90% in factory mode.
6HSH to obtain horizontal center at the center of CRT screen.
iv. Receive 60HZ cross hatch pattern. Set TV standard status. Adjust 6EWW,
6PWW, 6URC, 6LCR, 6BOW, 6EWT to obtain picture’s Horizontal
redisplay ratio more than 90% in factory mode.
Horizontal
parallelogram 60Hz
|
6PAR
|
Horizontal
bow 60Hz
|
6BOW
|
Horizontal
shift 60Hz
|
6HSH
|
EW
width 60Hz
|
6EWW
|
EW
parabola/ width 60Hz
|
6EWP
|
EW
upper corner parabola 60Hz
|
6UCR
|
EW
lower corner parabola 60Hz
|
6LCR
|
EW
trapezium 60Hz
|
6EWT
|
Vertical size and pin cushion adjustment (KEY 2)
i. Receive 50HZ cross hatch pattern. Set TV standard status, adjust 5VSL to obtain half of the cross hatch, adjust 5SCL to obtain picture’s vertical pin cushion a good status, adjust 5VSH to obtain picture’s vertical center at the center of CRT screen in factory mode.
ii. Receive 50HZ monoscope pattern. Set TV standard status,. Adjust 5VAM to obtain picture’s vertical redisplay ratio more than 90% in factory mode.
i. Receive 50HZ cross hatch pattern. Set TV standard status, adjust 5VSL to obtain half of the cross hatch, adjust 5SCL to obtain picture’s vertical pin cushion a good status, adjust 5VSH to obtain picture’s vertical center at the center of CRT screen in factory mode.
ii. Receive 50HZ monoscope pattern. Set TV standard status,. Adjust 5VAM to obtain picture’s vertical redisplay ratio more than 90% in factory mode.
Vertical
slope 50Hz
|
5VSL
|
Vertical
amplitude 50Hz
|
5VAM
|
S-correction
50Hz
|
5SCL
|
Vertical
shift 50Hz
|
5VSH
|
Receive
60HZ cross hatch pattern. Set TV standard status. Adjust 6VSL to obtain half of
the cross hatch, adjust 6SCL to obtain picture’s vertical pin cushion a good
status. Adjust 6VSH to obtain picture’s vertical center at the center of CRT
screen in factory mode.
iv. Receive 60HZ monoscope pattern. Set TV standard status. Adjust 6VAM to obtain picture’s vertical redisplay ratio more than 90% in factory mode.
iv. Receive 60HZ monoscope pattern. Set TV standard status. Adjust 6VAM to obtain picture’s vertical redisplay ratio more than 90% in factory mode.
Vertical
slop 60Hz
|
6VSL
|
Vertical
amplitude 60Hz
|
6VAM
|
S-correction
60Hz
|
6SCL
|
Vertical
shift 60Hz
|
6VSH
|
If
necessary, adjust Horizontal Center and EW again.
vi. Receive 50HZ RGB or YUV cross hatch pattern. Set TV standard status.
Adjust 5RGH to obtain picture’s vertical center at the center of CRT screen in factory mode. (OPTION).
vii. Receive 60HZ RGB or YUV cross hatch pattern. Set TV standard status.
Adjust 6RGH to obtain picture’s vertical center at the center of CRT screen in factory. (OPTION).
vi. Receive 50HZ RGB or YUV cross hatch pattern. Set TV standard status.
Adjust 5RGH to obtain picture’s vertical center at the center of CRT screen in factory mode. (OPTION).
vii. Receive 60HZ RGB or YUV cross hatch pattern. Set TV standard status.
Adjust 6RGH to obtain picture’s vertical center at the center of CRT screen in factory. (OPTION).
OSD position adjustment.
i. Menu OSD position adjustment. Received 50/60Hz cross hatch pattern. Set TV standard status. Press KEY 2 in factory mode, adjust 5VOF /6VOF and HOF item, to obtain menu OSD at the center of CRT screen.
ii. LOGO position adjustment. Receive 50/60Hz cross hatch pattern. Set TV standard status. Press KEY 7 in factory mode, adjust XMIN, XMAX, YMIN, and YMAX item, to obtain LAGO at the center up to 1/3 of CRT screen.
iii. TELETEXT OSD position adjust. Receive 50/60HZ TELETEXT signal.
Set TV standard status. Press KEY 7 in factory in factory mode, adjust TXMI and 5TYM/6TYM item, to obtain INDEX at the center of CRT screen.
i. Menu OSD position adjustment. Received 50/60Hz cross hatch pattern. Set TV standard status. Press KEY 2 in factory mode, adjust 5VOF /6VOF and HOF item, to obtain menu OSD at the center of CRT screen.
ii. LOGO position adjustment. Receive 50/60Hz cross hatch pattern. Set TV standard status. Press KEY 7 in factory mode, adjust XMIN, XMAX, YMIN, and YMAX item, to obtain LAGO at the center up to 1/3 of CRT screen.
iii. TELETEXT OSD position adjust. Receive 50/60HZ TELETEXT signal.
Set TV standard status. Press KEY 7 in factory in factory mode, adjust TXMI and 5TYM/6TYM item, to obtain INDEX at the center of CRT screen.
White Balance adjust (Applied in factory) (KEY 3)
i. Normally, 5P60 can auto adjust white balance, but for some CRT need to adjust white balance carefully by hand. Set BRIGHTNESS and CONTRAST at normal status, receive GREY SCAL and entering factory mode press KEY 3, set WPR at 31, adjust WPG and WPR to obtain white balance.
i. Normally, 5P60 can auto adjust white balance, but for some CRT need to adjust white balance carefully by hand. Set BRIGHTNESS and CONTRAST at normal status, receive GREY SCAL and entering factory mode press KEY 3, set WPR at 31, adjust WPG and WPR to obtain white balance.
RF. AGC adjustment (KEY 4)
i. Receive 60dB RF signal. Connect Digital voltmeter positive terminal to tuner AGC terminal and negative terminal to GND.
ii. Entering the AGC item in factory mode by the REMOTE CONTROL.
Method. Press key CLOCK, P.M. in turn, you can enter into factory mode, then press key “4” and select AGC item by PROG+/-
i. Receive 60dB RF signal. Connect Digital voltmeter positive terminal to tuner AGC terminal and negative terminal to GND.
ii. Entering the AGC item in factory mode by the REMOTE CONTROL.
Method. Press key CLOCK, P.M. in turn, you can enter into factory mode, then press key “4” and select AGC item by PROG+/-
iii.
Adjust “VOL+” and “VOL-” keys to obtain 3.8V Digital voltage meter reading or
just no NOISE on screen.
iv. Press key “ + ” to exit factory mode.
iv. Press key “ + ” to exit factory mode.
E2PROM initialization (Key-8)
i. When in repairing, we can replace E2PROM by other empty or un-empty E2PROM, but you must initialize E2PROM to avoid unknown things.
ii. Methods:
1. Press remote control KEY CLOCK, P.M. in turn to entering factory mode.
2. Press remote control KEY 8 to entering INIT menu, then press key PROG +, you can see “INIT BUSY” waiting for about 5 seconds till “BUSY” disappeared, then POWER OFF and ON by main power E2PROM initialization in completed.
iii. Setting the data in E2PROM. When in manufacturing, first you read the data from an good E2PROM 24C08, then WRITE to other E2PROM 24C08.
i. When in repairing, we can replace E2PROM by other empty or un-empty E2PROM, but you must initialize E2PROM to avoid unknown things.
ii. Methods:
1. Press remote control KEY CLOCK, P.M. in turn to entering factory mode.
2. Press remote control KEY 8 to entering INIT menu, then press key PROG +, you can see “INIT BUSY” waiting for about 5 seconds till “BUSY” disappeared, then POWER OFF and ON by main power E2PROM initialization in completed.
iii. Setting the data in E2PROM. When in manufacturing, first you read the data from an good E2PROM 24C08, then WRITE to other E2PROM 24C08.
Default data values
Purity adjustment
1. Before color purity adjustment, warm up the TV set over 15 minutes and fully degausses.
2. Receive pure white signal in AV status and set the TV receiver dynamic.
3. Go to factory mod MENU2. After write down the values of R-BIAS and B-BIAS, set the values of R-BIAS and B-BIAS zero.
4. Loosen the clamp screw of the deflection yoke and pull the deflection yoke towards color purity Magnetic loop.
5. Adjust color purity magnetic loop to make the green area at the center of CRT screen.
6. Slowly push the deflection yoke toward the front of CRT and set it where a uniform green field is obtained. Tighten the clamp screw of the deflection yoke.
7. Restore the values of R-BIAS, G_BIAS and B-BIAS.
1. Before color purity adjustment, warm up the TV set over 15 minutes and fully degausses.
2. Receive pure white signal in AV status and set the TV receiver dynamic.
3. Go to factory mod MENU2. After write down the values of R-BIAS and B-BIAS, set the values of R-BIAS and B-BIAS zero.
4. Loosen the clamp screw of the deflection yoke and pull the deflection yoke towards color purity Magnetic loop.
5. Adjust color purity magnetic loop to make the green area at the center of CRT screen.
6. Slowly push the deflection yoke toward the front of CRT and set it where a uniform green field is obtained. Tighten the clamp screw of the deflection yoke.
7. Restore the values of R-BIAS, G_BIAS and B-BIAS.
Convergence adjustment
1. Receive a dotted pattern. Set the TV receiver dynamic.
2. Loose the convergence magnet clamper and align red with blue dots at the center of the screen by rotating (R, B) static convergence magnets.
3. Align Red/Blue with green dots at the center of the screen by rotating (RB-G) static convergence magnet.
4. Remove the DY wedges and slightly tilt the deflection yoke horizontally and vertically to obtain the good.
1. Receive a dotted pattern. Set the TV receiver dynamic.
2. Loose the convergence magnet clamper and align red with blue dots at the center of the screen by rotating (R, B) static convergence magnets.
3. Align Red/Blue with green dots at the center of the screen by rotating (RB-G) static convergence magnet.
4. Remove the DY wedges and slightly tilt the deflection yoke horizontally and vertically to obtain the good.
Schematic-Full
