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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..............The bitterness of poor quality is remembered long after the sweetness of todays funny gadgets low price has faded from memory........ . . . . . .....
Don't forget the past, the end of the world is upon us! Pretty soon it will all turn to dust!

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All posts are presented here for informative, historical and educative purposes as applicable within fair use. NOTHING HERE IS FOR SALE !

Tuesday 5 March 2019

SONY HD AV RECEIVER STR-DA5200ES – AMPLIFIER BIAS ADJUSTMENT – VIDEO CALIBRATION – TEST MODE – SPECIAL MODE – FLD TESTING – AV RECEIVER REPAIR AND SERVICE

SONY HD AV RECEIVER STR-DA5200ES – Amplifier Bias adjustment – Video calibration – Test mode – Special mode – FLD testing – AV Receiver repair and service

                                                Category: AV Receiver Repair and Service 

Contents of this article 
  • Video calibration procedure 
  • Amplifier Idle current adjustment 
  • Special menu mode 

SONY STR-DA5200ES

SPECIAL MENU MODE
Procedure:
1. Press the [POWER] button to turn on the main power, then while pressing the [TONE MODE] button, press the [A.F.D.], [2CH], [MUSIC], [MOVIE] button in order.
2. The message “MENU SPECIALIZED!” appears.
3. Each time the UP/DOWN  button of the remote commander is pressed, the item is switched in order as follows.
4. To release from this mode, while pressing the [TONE MODE] button, press the [A.F.D.], [2CH], [MUSIC], [MOVIE] button in order again.
BIAS ALIGNMENT ADJUSTMENT
Note: Afer 10 minutes or more have passed since the power supply was turned on, this adjustment is done.
Connection:
CNP1502 (CNP1552, CNP1602, CNP1702, CNP1752, CNP1802, CNP1852) pin 1
CNP1502 (CNP1552, CNP1602, CNP1702, CNP1752, CNP1802, CNP1852) pin 2
Procedure:
1. Connect a digital voltmeter to the CNP1502 (CNP1552,
CNP1602, CNP1702, CNP1752, CNP1802, CNP1852) on the BIAS board.
2. Press the [POWER] button to turn on the main power.
3. Adjust the RV1501 (RV1551, RV1601, RV1701, RV1751, RV1801, RV1851) so that the digital voltmeter reading is 5 mV to 20 mV.

VIDEO CALIBRATION ADJUSTMENT
Adjustment to decide the standard of the video input signal.
Note: After replacing HDMI board, or after “SUPER RESET” of the special menu mode is executed, perform this adjustment.
Procedure:
1. “DVD” is selected by using [INPUT SELECTOR] jog.
2. Connect a color pattern generator to the EXT VIDEO VIDEO IN jack (J6905) on the S-VIDEO board, DVD S VIDEO IN jack (J6902) on the S-VIDEO board, COMPONENT VIDEO DVD IN jack (J6102) on the VIDEO board and DVD VIDEO IN jack (J6401) on the VIDEO board.
3. Input NTSC color bars signal from the color pattern generator.
4. Press the [POWER] button to turn off the main power
5. While pressing the [TUNING MODE], [MUSIC] and [MULTI CH IN] buttons, press the [POWER] button to turn on the main power. It enters the test mode, and display as below.
V.CAL START? N:#, P:@
#: X (NTSC measurement incompletion) or
O (NTSC measurement completion)
@: X (PAL measurement incompletion) or
O (PAL measurement completion)
When “Please Check V.Input” is displayed, Video signal necessary for the measurement while measuring it last time was not detected and it became an error Confirm the input of the video of the terminal connection etc., and measure the [MEMORY/ENTER] button again pressing.
6. When the [MEMORY/ENTER] button is pressed, the adjustment is automatically completed, and result is written in the EEPROM.
7. Input PAL color bars signal from the color pattern generator.
8. Perform step 4 to 6.
TEST MODE
TUNER FACTORY PRESET MODE
All preset contents are reset to the default setting.
Procedure:
1. While pressing the [2CH] and [TUNING MODE] buttons, press the [POWER] button to turn on the main power.
2. The message “Factory Preset” appears and the present contents are reset to the default values.
MEMORY CLEARING MODE
All preset contents are cleared when this mode is activated. Use this mode before returning the product to clients upon completion of repair.
Procedure:
1. While pressing the [TONE MODE] and [MULTI CH IN] buttons, press the [POWER] button to turn on the main power.
2. The message “MEMORY CLEARING...” appears and the memories are reset to the default values.
3. When done, the message “MEMORY CLEARED !” appears.
SWAP MODE
Procedure:
1. While pressing the [2CH] and [MULTI CH IN] buttons, press the [POWER] button to turn on the main power.
2. The message “SWAP MODE !” appears.
FLUORESCENT INDICATOR TUBE PATTERN CHECK MODE
All fluorescent segments are tested. When this test is activated, all segments turn on at the same time, then each segment turns on one after another.
Procedure:
1. While pressing the [MOVIE] and [MULTI CH IN] buttons, press the [POWER] button to turn on the main power.
2. All segments and all LEDs turn on.
SOUND FIELD CLEAR MODE
The preset sound field is cleared when this mode is activated. Use this mode before returning the product to clients upon completion of repair.
Procedure:
1. While pressing the [MUSIC] button, press the [POWER] button to turn on the main power.
2. The message “S. F. Initialize” appears and initialization is performed.
TUNER AM STEP CHANGE (9 kHz/10 kHz) MODE (US AND CANADIAN MODELS)
Either the 9 kHz step or 10 kHz step can be selected for the AM channel step.
Procedure:
1. While pressing the [TUNING MODE] button, press the [POWER] button to turn on the main power.
2. Either the message “AM 9kHz Step” or “AM 10kHz Step” appears, Select the desired step
COMMAND MODE CHANGE MODE
The command mode of the remote-commander which this set receives can be changed.
Procedure:
1. While pressing the [2CH] button, press the [POWER] button to turn on the main power.
2. Either the message “COMMAND MODE [AV1]” or “COMMAND MODE [AV2]” appears. Select the desired mode.
SF LOCK ON/OFF CHANGE MODE
Procedure:
1. While pressing the [MUSIC] and [MULTI CH IN] buttons, press the [POWER] button to turn on the main power.
2. Either the message “OFF” or “ON” appears.
RDS AUTOBETICAL MODE (AEP AND UK MODELS)
Procedure:
1. While pressing the [MEMORY/ENTER] button, press the [POWER] button to turn on the main power.
2. The message “Autobetical Select” appers and scans and stores all the FM and FM RDS station in the broadcast area.
XM FACTORY TEST MODE (US AND CANADIAN MODELS)
Mode to confirm operation of XM. Doing display of ID of XM antenna and output of audio signal that XM antenna generates, it is confirmed that there are no probrems in the communication of the XM antenna and the tranmission of the audio signal.
Procedure:
1. The XM antenna was connected, while pressing the [CATEGORY --] and [MEMORY/ENTER] buttons, press the [POWER] button to turn on the main power.
2. Whenever the [DISPLAY] button is pressed, the output of the audio signal of 1 kHz L/R, 20 Hz L/R, 5 kHz L/R, muting, 1 kHz L and 1kHz R are switched.
Posted By: FRANK at 02:32
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