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.

How to use the site:
- If you landed here via any Search Engine, you will get what you searched for and you can search more using the search this blog feature provided by Google. You can visit more posts scrolling the left blog archive of all posts of the month/year,
or you can click on the main photo-page to start from the main page. Doing so it starts from the most recent post to the older post simple clicking on the Older Post button on the bottom of each page after reading , post after post.

You can even visit all posts, time to time, when reaching the bottom end of each page and click on the Older Post button.

- If you arrived here at the main page via bookmark you can visit all the site scrolling the left blog archive of all posts of the month/year pointing were you want , or more simple You can even visit all blog posts, from newer to older, clicking at the end of each bottom page on the Older Post button.
So you can see all the blog/site content surfing all pages in it.

- The search this blog feature provided by Google is a real search engine. If you're pointing particular things it will search IT for you; or you can place a brand name in the search query at your choice and visit all results page by page. It's useful since the content of the site is very large.

Note that if you don't find what you searched for, try it after a period of time; the site is a never ending job !

..............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!

©2010, 2011, 2012, 2013, 2014 Frank Sharp - You do not have permission to copy photos and words from this blog, and any content may be never used it for auctions or commercial purposes, however feel free to post anything you see here with a courtesy link back, btw a link to the original post here , is mandatory.
All posts are presented here for informative, historical and educative purposes as applicable within fair use. NOTHING HERE IS FOR SALE !

Saturday 14 March 2020

SONY HCD - SBT100 - SBT100B - SBT300W - SBT300WB COMPACT DISC RECEIVER SERVICE ADJUSTMENTS - SMPS SCHEMATIC WITH STR Y6766



Sony HCD-SBT100 - SBT100B - SBT300W - SBT300WB COMPACT DISC RECEIVER service adjustments - SMPS schematic using STR Y6766



How to take out the disc in emergency, How to unlock the disc tray, LAN network checking method, Power board [SMPS] circuit diagram using Sanken STR-Y6766 and more...
US and Canadian Model - HCD-SBT100.
AEP Model -  HCD-SBT100 - SBT100B - SBT300W - SBT300WB.
UK Model -  HCD-SBT100B - SBT300WB.
Australian Model - HCD-SBT100 -SBT300W - SBT300WB.
Power output (rated)
HCD-SBT100/SBT100B - 20 watts + 20 watts (at 6 Ohms, 1 kHz, 1% THD)
 [25 watts + 25 watts (per channel at 6 Ohms, 1 kHz) RMS]
HCD-SBT300W - SBT300WB - 25 watts +   [25 watts (at 6 Ohms, 1 kHz, 1% THD) 
 [50 watts + 50 watts (per channel at 6 Ohms, 1 kHz RMS]
* HCD-SBT100 is the compact disc receiver in CMT-SBT100.
* HCD-SBT100B is the compact disc receiver in CMT-SBT100B.
* HCD-SBT300W is the compact disc receiver in CMT-SBT300W.
* HCD-SBT300WB is the compact disc receiver in CMT-SBT300WB.
CD Mechanism Type - CDM90-DVBU202.
Optical Pick-up Block Name - CMS-S76RFS7G.
  The laser beam on this model is concentrated so as to be focused on the disc reflective surface by the objective lens in the optical pickup block. Therefore, when checking the laser diode emission, observe it from more than 30 cm away from the objective lens.
  When the TUNER board is defective, exchange the complete mounted board.
  When the DAB board is defective, exchange the complete mounted board.
  When the MS-476 board is defective, exchange the CDM90 ASSY
  IC501, IC502, IC504, IC702, IC841, IC851, IC902, IC903 and IC904 on the MAIN board cannot exchange with single. When these parts are damaged, exchange the complete mounted board.
  IC5003 on the NET board cannot exchange with single. When this part is damaged, exchange the complete mounted board.
  IC5008 on the USB board cannot exchange with single. When this part is damaged, exchange the complete mounted board.
  After repair completion, connect the “iPod” etc. corresponding to this unit, and check the operation of playback (HCD-SBT300W - SBT300WB only), charge, etc.
  When performing the operation check in the state that this unit was disassembled, it is possible to perform the operation check in the state that heat sink was removed. But perform the operation check in the volume state as low as possible.
Releasing the disc tray lock.
1. Press the [Power] button to turn the power on.
2. Press the [FUNCTION] button to turn the CD function.
3. Press two buttons of the [Stop] and [UP] simultaneously for five seconds.
4. The message “UNLOCKED” is displayed on the fluorescent indicator tube and the disc tray is unlocked.
When “LOCKED” is displayed, the disc tray lock is not released by turning power on/off with the [Power] button.
Replacing the wifi module (HCD-SBT300W - SBT300WB only)
When replacing the WiFi module, MAC address is changed. Print the following explanation, cut it, and hand over
it to the customer with the unit, when returning the unit that the repair is completed.
[MAC address of this unit has been changed by this repair. The customer who uses the MAC address filtering function of connected access point equipment please set it again. MAC address is possible to confirm it on the Sony Network Device Setting screen. Please refer to “Network connections” on the operating instructions for details]
 
Checking method of network connection
(HCD-SBT300W - SBT300WB only)
  It is necessary to check the network connection, when replacing the complete MAIN board, complete NET board, IC101 on the MAIN board or WiFi module. Check the connection of wireless and wired LAN, according to the following method.
 
Checking Method of Wireless LAN Connection
  Access point supporting WPS.
1. Press the [Power] button to turn the power on.
2. Press the [OPTIONS] button on the remote commander to the display the setting menu on the fluorescent indicator tube.
3. Press the [UP]/[DN] buttons on the remote commander to select “WPS”.
4. Press the [+] button on the remote commander.  (“OK” flashes on the fluorescent indicator tube)
5. Press the [+] button on the remote commander.
(“WPS” flashes on the fluorescent indicator tube).  
6. Press the [WPS] button on the access point.
7. When wireless LAN connection is started, “CONNECT” flashes on the fluorescent indicator tube.
8. When wireless LAN connection is completed, “COMPLETE” appears for a moment on the fluorescent indicator tube, then “symbol ” appears on the fluorescent indicator tube.
9. Press the [Power] button to turn the power off.
Note: Refer to the instruction manual about details of the setting method.
Checking method of wired LAN connection
1. Connect the main unit to the router with the LAN cable.
2. Press the [Power] button to turn the power on.
3. Check that “thr symbol ” appears on the fluorescent indicator tube.
4. Press the [Power] button to turn the power off.
Note: Refer to the instruction manual about details of the setting method.
How to open the tray when power switch turn off or when a power failure occurs during play time.
Note 1: After the case is removed, this work is done.
Note 2: Please prepare the thin wire (clip etc. processed to the length of 8 cm or more).
Optical pick-up (CMS-S 76RFS7G) (OP1 disassemby)
Power board schematic [SMPS]
Cold reset.
  It can clears all data including preset data stored in the memory to initial conditions.
  Execute this mode when returning the this unit to the customer after the repair.
1. Press the [Power] button to turn the power on.
2. Press two buttons of the [Stop] and [Power] simultaneously for three seconds.
3. The message “RESET” (HCD-SBT100 - SBT100B) or “ALL RESET” (HCD-SBT300W - SBT300WB) is displayed on the fluorescent indicator tube, then becomes the standby state.
Test modes
Auto standby test.
  It can confirm the auto standby function operates normally.  The auto standby function operates in 60 seconds in this mode.  (Usually, it takes 30 minutes)
1. Press the [Power] button to turn the power on.
2. Press the [FUNCTION] button to turn except “FM”, “AM” and “DAB”.
3. Press two buttons of the [BASS BOOST] and [FUNCTION] simultaneously for three seconds.
4. It enters the auto standby test mode, and the relevant screen is displayed on the fluorescent indicator tube.  (In this mode, “STEREO” continues blinking on the fluorescent indicator tube)
5. In the case of the following states, the countdown timer decreases. This unit will become standby state if the countdown timer decreases to “0”
• Operation is not performed.
• The signal level is lower than threshold.
Releasing method.
Press two buttons of the [BASS BOOST] and [FUNCTION] simultaneously for three seconds.
Common test.
It can confirm the MAX/MIN of volume.
1. Press the [Power] button to turn the power on.
2. Press two buttons of the [BASS BOOST] and [FF] simultaneously for three seconds.
3. It enters the common test mode, the message “AUDIO IN” is displayed on the fluorescent indicator tube.
(In this mode, “PLAY” and “SLEEP” continues blinking on the liquid crystal display)
4. When rotating the [VOLUME] knob, the message is changed with VOLUME MIN <=> VOLUME 23 <=> VOLUME MAX on the fluorescent indicator tube.
Releasing method.
Press the [Power] button to turn the power off.
Panel test.
  It can confirm the fluorescent indicator tube, LEDs, model name, destination, software version and button.
1. Press the [Power] button to turn the power on.
2. Press two buttons of the [FUNCTION] and [<< TUNE -]simultaneously for three seconds.
3. It enters the panel test mode, and all segments on the fluorescent indicator tube and all LEDs light up.
4. When pressing the [>> TUNE +] button, the model name and destination are displayed on the fluorescent indicator tube alternately.  (In this mode, “STEREO” continues blinking on the fluorescent indicator tube)
5. When pressing the [>> TUNE +] button again, the MC version is displayed on the fluorescent indicator tube.
6. Each time [>> TUNE +] button is pressed, tthe display changes MCS version > MTK version > OPU version > NWM version (HCD-SBT300W/SBT300WB only) > BTM version > GC version > USBL version > NWA version (HCD-SBT300W/SBT300WB only) > NWD version (HCDSBT300W/SBT300WB only) > BTA version > BTL version > CD version > CDMA version > CDMB version > ST version > TA version > TM version this order, and returns to the MC version display.
7. When pressing the [Stop] button while the each version is displayed, year, month and day of the software creation is displayed. When pressing the [Stop] button again, the display returns to the each version display.
8. When pressing the [ |<< TUNE - ] button, “K 0 V0” is displayed on the fluorescent indicator tube.
9. Each time a button is pressed, “K 0” value increases. However, once a button is pressed, it is no longer taken into account.
When pressing the all buttons, display becomes “K10”.
10. “V0” value increases “V2”, “V4”, “V6” “V8”, “V0” if turn the [VOLUME] knob clockwise, or it decreases “V8”, “V6”, “V4”, “V2”, “V0” if turn the knob counterclockwise.
Releasing method.
Press two buttons of the [FUNCTION] and [|<< TUNE -] simultaneously for three seconds.
Disc tray lock mode.
  It can be unable to take sample disc out of disc tray in the shop.
1. Press the [Power] button to turn the power on.
2. Press the [FUNCTION] button to turn the CD function.
3. Press the [Up] button to open the disc tray and set the CD.
4. Press the [Up] button to close the disc tray.
5. Press two buttons of the [Stop] and [Up] simultaneously for five seconds.
6. The message “LOCKED” is displayed on the fluorescent indicator tube and the disc tray is locked.
(Even if pressing the [Up] button, the message “LOCKED” is displayed on the liquid crystal display and the disc tray is locked)
Releasing method.
1. Press two buttons of the [Stop] and [Up] simultaneously for five seconds.
2. The message “UNLOCKED” is displayed on the fluorescent indicator tube and the disc tray is unlocked. 
AM step change: (Except AEP and UK models)
  It can change AM step interval into 9 kHz or 10 kHz.
Procedure
1. Press the [Power] button to turn the power on.
2. Press the [FUNCTION] button to turn the AM function.
3. Press the [Power] button to turn the power off.
4. Press two buttons of the [FUNCTION] and [Power] simultaneously.
5. The message “STEP 9” or “STEP 10” is displayed on the fluorescent indicator tube, and AM step interval changed.
Check version display.
It can confirm the MC, CD and NW version.
Procedure:
1. Press the [Power] button to turn the power on.
2. Press two buttons of the [Stop] and [BASS BOOST] simultaneously for three seconds.
3. It enters the check version display mode, the MC version is displayed on the fluorescent indicator tube.
4. Each time [>>| TUNE +] button is pressed, the display changes CD version > NW version (HCD-SBT300W/SBT300WB
only) this order, and release from check version display mode.
Posted By: FRANK at 02:49
TAG: , , , ,