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 February 2019

SONY DAV DZ810 HOME THEATER SYSTEM – HBD-DZ170 - ERROR CODES – PROTECTIONS – COLD RESET – SMPS SCHEMATIC

Sony DAV DZ810 Home Theater System – HBD-DZ170 - Error codes – Protections – Cold reset – SMPS schematic

HBD-DZ170/DZ171/DZ175/DZ310/DZ510/DZ610/DZ810 is the amplifier, DVD/CD and tuner section in DAV-DZ170/DZ171/DZ175/DZ310/DZ510/DZ610/DZ810
Cold Reset
• The cold reset clears all data including preset data stored
in the RAM to initial conditions. Execute this mode when
returning the set to the customers.
Procedure
1. Press the Power button to turn the power on.
2. Press three buttons [Play], [FUNCTION] and [Power] simultaneously.
3. When this button is operated, display as “COLD RESET” for a while and all of the settings are reset.
Key Test Mode
Procedure
1. When the display test mode is activated, press the [?/1] button, to select the key test mode.
2. To enter the KEY test mode, the fluorescent indicator displays “K0 V0”. Each time an another button is pressed, “KEY” value increases. However, once a button is pressed, it is no longer taken into account. When all keys are pressed correctly, “K6 V0” is displayed.
3. When the [VOLUME] control is turned in the direction of (+), “V0” is changed to “V1”, then ... “V9”.
When the [VOLUME] control is turned in the direction of (–), “V0” is changed to “V9”, then ... “V1”.
4. To exit from this mode, while pressing the [Stop] and the [ Play] buttons simultaneously, turn the [VOLUME] control in the direction of (+).
Error codes
The meaning of error codes are:
01: Communication error (No reply from syscon)
02: Syscon hung up
03: Power OFF request when syscon hung up
19: Thermal shutdown
24: MoveSledHome error
25: Mechanical move error (5 Changer)
26: Mechanical move stack error
30: DC motor adjustment error
31: DPD offset adjustment error
32: TE balance adjustment error
33: TE sensor adjustment error
34: TE loop gain adjustment error
35: FE loop gain adjustment error
36: Bad jitter after adjustment
40: Focus NG
42: Focus layer jump NG
51: Spindle stop error
52: Open kick spindle error
Power Supply Regulator board [SMPS] Circuit Diagram and PWB [STR-Y6763 – STR-F6168-LF1352]
Disc Tray Lock
• The disc tray lock function for the anti-theft of an demonstration disc in the store is equipped.
Setting Procedure :
1. Press the [Power] button to turn the set on.
2. Press the [FUNCTION] button to set DVD function.
3. Insert a disc.
4. Press the [Stop] button and the [Eject] button simultaneously for five seconds.
5. The message “LOCKED” is displayed and the tray is locked.
Releasing Procedure :
1. Press the [Stop] button and the [Eject] button simultaneously for five seconds again.
2. The message “UNLOCKED” is displayed and the tray is unlocked.
Note: When “LOCKED” is displayed, the tray lock is not released by turning power on/off with the [Power] button.
Product Out
• This mode moves the optical pick-up to the position durable to vibration and clears all data including preset data stored in the STR RAM to initial conditions. Use this mode when returning the set to the customer after repair.
Procedure
1. Press the [Power] button to turn the power on.
2. Press the [FUNCTION] button to set the function “DVD/CD”.
3. Remove all discs, and then press three buttons [Stop], [Eject] and turn the [VOLUME] control in the direction of (+).
4. Displayed to message “SERVICE IN” on the fluorescent indicator tube when pressing in turn the [4] > [DVD MENU] >[CLEAR] buttons on the remote commander.
5. After the “STANDBY” blinking display finishes, the message “MECHA LOCK” < == >“UNPLUG” is displayed on the fluorescent indicator tube disconnect the AC power plug, then the product out mode is set.
The STR RAM initialization is executed upon a next power-on after the power is turned off.
PROTECTION FACTOR (SD DETECTION/ DC DETECTION) IDENTIFICATION TEST MODE
When an error is detected, the FL tube alternately displays
“PROTECTOR < == > PUSH POWER”.
Press the [Power] button.
* Buttons other than the [Power] button are invalid.
“STANDBY” blinks three times on the FL tube.
The protection release state (POWER OFF) is established.
(No FL tube display)
Press the [Power] button two times.
The power to the system turns on, and the normal operation is established. (Restore).
During the protection state:
1. If the AC plug is connected or disconnected during the protection state, the protection state is released, and the normal operation is established. (The protection state is not maintained.)
2. The protection factor is displayed by pressing the [RETURN]  [3]  [2]  [0]  [0]  [ANGLE] buttons of the remote commander.
(during the “PROTECTOR < == > PUSH POWER” display).
> When SD is detected: Repeats “SD DETECT < == >  PROTECTOR”.
>  When DC is detected: Repeats “DC DETECT < == > PROTECTOR”.
> When TSD is detected: Repeats “TEMP DETECT < == > PROTECTOR”.
PL: SD detection
When the “L” output from the SD (shutdown) port on the S-MASTER POWER Driver Shutdown and voltage descent (15V or less) of 30V power supply (PVDD) are detected.
DC detection
When the “L” output from the power/speaker error detection circuit (DC detection port) is detected for two seconds continually, the power system other than that of the FL tube is turned off, and the protection state is established.
TSD detection
When the “L” output from the thermal shutdown port on the motor driver is detected.
Posted By: FRANK at 05:31
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