REPAIRING AND NOT THROWING AWAY

REPAIRING AND NOT THROWING AWAY

Richtige Fernseher haben Röhren!

Richtige Fernseher haben Röhren!

In Brief: On this site you will find pictures and technical information about Service Modes, Circuit Diagrams, Firmware Update procedure, Disassemble procedure, Universal remote control set-up codes, Troubleshooting and more....

If you go into the profession, you will obtain or have access to a variety of tech tips databases HERE IT IS Master Electronics Repair !.

These are an excellent investment where the saying: 'time-is-money' rules. However, to learn, you need to develop a general troubleshooting approach - a logical, methodical, method of narrowing down the problem. A tech tip database might suggest: 'Replace C536' for a particular symptom. This is good advice for a specific problem on one model. However, what you really want to understand is why C536 was the cause and how to pinpoint the culprit in general even if you don't have a service manual or schematic and your tech tip database doesn't have an entry for your sick TV or VCR.

While schematics are nice, you won't always have them or be able to justify the purchase for a one-of repair. Therefore, in many cases, some reverse engineering will be necessary. The time will be well spent since even if you don't see another instance of the same model in your entire lifetime, you will have learned something in the process that can be applied to other equipment problems.
As always, when you get stuck, checking out a tech-tips database may quickly identify your problem and solution.In that case, you can greatly simplify your troubleshooting or at least confirm a diagnosis before ordering parts.

Happy repairing!
Today, the West is headed for the abyss. For the ultimate fate of our disposable society is for that society itself to be disposed of. And this will happen sooner, rather than later.

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Monday 25 March 2019

TOSHIBA 32A36C - SERVICE MODE - CONFIRMATION OF HOURS USED - REPLACEMENT OF MEMORY IC - ELECTRICAL ADJUSTMENTS

TOSHIBA 32A36C - SERVICE MODE - CONFIRMATION OF HOURS USED - REPLACEMENT OF MEMORY IC - ELECTRICAL ADJUSTMENTS



SERVICE MODE
  • This unit provided with the following SERVICE MODES so you can repair, examine and adjust easily.
  • To enter the Service Mode, press both set key and remote control key for more than 1 second.
SET KEY
REMOCON KEY
OPERATIONS
VOL. (-) MIN
0
Releasing of V-CHIP PASSWORD.



VOL. (-) MIN


1
Initialization of factory data.
NOTE: Do not use this for normal servicing.
If you set factory initialization, the memories are reset such as the channel setting, the POWER ON total hours.


VOL. (-) MIN


6
POWER ON total hours is displayed on the screen.
 "CONFIRMATION OF HOURS USED".
Can be checked of the INITIAL DATA of MEMORY IC.
VOL. (-) MIN
9
Display of the Adjustment MENU on the screen.
 (On-Screen Display Adjustment).
CONFIRMATION OF HOURS USED
POWER ON total hours can be checked on the screen. Total hours are displayed in 16 system of notation.  NOTE: If you set a factory initialization, the total hours is reset to "0".
  • Set the VOLUME to minimum.
  • Press both VOL. DOWN button on the set and Channel button (6) on the remote control for more than 1 second.
  • After the confirmation of using hours, turn off the power.
=========================
INIT   00   90
CRT  ON  0010
=========================
INIT  00  90  > Initial setting content of MEMORY IC.
CRT ON  0010  > POWER ON total hours.
= (16 x 16 x 16 x thousands digit value)
+ (16 x 16 x hundreds digit value)
+ (16 x tens digit value)
+ (ones digit value)

REPLACING MEMORY IC
If a service repair is undertaken where it has been required to change the MEMORY IC,
  1. Enter DATA SET mode by setting VOLUME to minimum.
  2. Press both VOL. DOWN button on the set and Channel button (6) on the remote control for more than 1 second.
  3. ADDRESS and DATA should appear.
  4. ADDRESS is now selected and should "blink". Using the VOL. UP/DOWN button on the remote, step through the ADDRESS until required ADDRESS to be changed is reached.
  5. Press ENTER to select DATA. When DATA is selected, it will "blink".
  6. Again, step through the DATA using VOL. UP/DOWN button until required DATA value has been selected.
  7. Pressing ENTER will take you back to ADDRESS for further selection if necessary.
  8. Repeat steps until all data has been checked.
  9. When satisfied correct DATA has been entered, turn POWER off (return to STANDBY MODE) to finish DATA input.
  10. After the data input, set to the initializing of shipping.
  • Turn POWER on.
  • Press both VOL. DOWN button on the set and Channel button (1) on the remote control for more than 1 second.
  • After the finishing of the initializing of shipping, the unit will turn off automatically.
  • The unit will now have the correct DATA for the new MEMORY IC.
ELECTRICAL ADJUSTMENTS
On-Screen Display Adjustment
In the condition of NO indication on the screen.
  • Press the VOL. DOWN button on the set and the Channel button (9) on the remote control for more than 1 second to appear the adjustment mode on the screen.
  • Use the Channel UP/DOWN button or Channel button (0-9) on the remote control to select the options.
  • Press the MENU button on the remote control to end the adjustments.
OPTIONS
FUNCTION

OSD H
CUT OFF
H. VCO
H. PHASE
AFC GAIN
V. SHIFT
H. SIZE
V. SIZE
V. LINEARITY
VS CORR
R DRIVE
B DRIVE
R BIAS
G BIAS
B BIAS
BRI. MAX
BRI. CENT
BRI. MIN
FUNCTION

CONT. MAX
CONT. CENT
CONT. MIN
COL. MAX
COL. CENT
COL. MIN
TINT
SHARPNESS
CB DL
CR DL
CB PED
CR PED
PARABOLA
CORNER
TRAPEZIUM
LEVEL
SEP. 1
SEP. 2

CONSTANT VOLTAGE ADJUSTMENT
  • Place the set in AV MODE without signal.
  • Connect the digital voltmeter to the TP003.
  • Adjust the VR502 until the digital voltmeter is 135 ± 0.5V.
CUT-OFF ADJUSTMENTS
  1. Place the set in Aging Test for more than 15 minutes.
  2. Set condition is AV MODE without signal.
  3. Using the remote control, set the brightness and contrast to normal position.
  4. Activate the adjustment mode display and press the channel button (01) on the remote control to select "CUT OFF".
  5. Adjust the Screen Volume until a dim raster is obtained.
WHITE BALANCE / WHITE BALANCE CS
NOTE: Adjust after performing CUT OFF adjustment.
  1. Place the set in Aging Test for more than 15 minutes.
  2. Receive the gray scale pattern from the Pattern Generator with Burst On.
  3. Using the remote control, set the brightness and contrast to normal position.
  4. Activate the adjustment mode display  and press the channel button (12) on the remote control to select "R. BIAS".
  5. Press the CH. UP/DOWN button on the remote control to select the "R. BIAS", "G. BIAS", "B. BIAS", "B. DRIVE" or "R. DRIVE".
  6. Adjust the VOL. UP/DOWN button on the remote control to whiten the R. BIAS, G. BIAS, B. BIAS, B. DRIVE and R. DRIVE at each step tone sections equally.
  7. Perform the above adjustments  until the white color is achieved.
  8. Press the TV/VIDEO button on the remote control to set to the CS mode.
  9. Receive the gray scale pattern from the Pattern Generator with Brust On.
  10. If the picture is too much green. Activate the adjustment mode display and press the channel button (28) on the remote control to select "CB PED".
  11. Adjust the VOL. UP/DOWN button on the remote control to select the step up.
  12. If the picture is too much red.Activate the adjustment mode display and press the channel button (29) on the remote control to select "CR PED".
  13. Adjust the VOL. UP/DOWN button on the remote control to select the step down.
FOCUS ADJUSTMENT
  • Receive the monoscope pattern.
  • Turn the Focus Volume fully counterclockwise once.
  • Adjust the Focus Volume until picture is distinct.
VERTICAL POSITION
  1. Receive the monoscope pattern.
  2. Using the remote control, set the brightness and contrast to normal position.
  3. Adjust the VR401 until the horizontal line becomes fit to the notch of the shadow mask.
VERTICAL SIZE [AMPLITUDE]
  • Receive the monoscope pattern.
  • Using the remote control, set the brightness and contrast to normal position.
  • Activate the adjustment mode display and press the channel button (07) on the remote control to select "V. SIZE".
  • Press the VOL. UP/DOWN button on the remote control until the SHIFT quantity of the OVER SCAN on upside and downside becomes 9 ± 3%.
VERTICAL LINEARITY
Adjust after performing adjustments.  After the adjustment of Vertical Linearity, reconfirm the Vertical Position and Vertical Size adjustments.
  • Receive the monoscope pattern.
  • Using the remote control, set the brightness, contrast, to normal position.
  • Activate the adjustment mode display and press the channel button (08) on the remote control to select "V. LINEARITY".
  • Press the VOL. UP/DOWN button on the remote control until the SHIFT quantity of the OVER SCAN on upside and downside becomes minimum.
HORIZONTAL PHASE
  1. Receive the monoscope pattern.
  2. Activate the adjustment mode display and press the channel button (03) on the remote control to select "H.PHASE".
  3. Press the VOL. UP/DOWN button on the remote control until the SHIFT quantity of the OVER SCAN on right and left becomes minimum.
HORIZONTAL SIZE
  1. Receive the monoscope pattern.
  2. Using the remote control, set the brightness and contrast to normal position.
  3. Activate the adjustment mode display  and press the channel button (06) on the remote control to select "H. SIZE".
  4. Press the VOL. UP/DOWN button on the remote control adjust the H.SIZE becomes 10~12%.
PARABOLA | CORNER
  • Receive the crosshatch signal from the Pattern Generator.
  • Using the remote control, set the brightness and contrast to normal position.
  • Activate the adjustment mode display and press the channel button (30) on the remote control to select "PARABOLA".
  • Press the VOL. UP/DOWN button on the remote control until of the right and left vertical lines are straight.
  • In the case the right and left vertical lines are not straigh, activate the adjustment mode display and press the channel button (31) on the remote control to select "CORNER".
  • Press the VOL. UP/DOWN button on the remote control until the right and left vertical lines are straight.
TRAPEZIUM
  1. Receive the crosshatch signal from the Pattern Generator.
  2. Using the remote control, set the brightness and contrast to normal position.
  3. Activate the adjustment mode display and press the channel button (32) on the remote control to select "TRAPEZIUM".
  4. Press the VOL. UP/DOWN button on the remote control until both ends of the vertical lines of the screen become parallel.
Confirmation of Fixed Value
check if the fixed values of each adjustment item is set correctly referring below.

NO

02
04
05
09
15
17
19
20
21
23
25
26
27
FUNCTION

H.VCO
AFC GAIN
V.SHIFT
VS CORR
BRI.MAX
BRI.MIN
CONT.CENT
CONT.MIN
COL.MAX
COL.MIN
SHARPNESS
CB DL
CR DL
RF

03
07
03
37
165
70
64
20
100
00
40
00
00
AV

03
07
03
37
165
70
64
20
100
00
40
00
00
CS

03
07
03
37
165
70
64
20
100
00
40
00
00
Posted By: FRANK at 02:51
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