Master Electronics Repair !

Welcome to Master Electronics Repair! website.Here you will find:Service Modes, Circuit Diagrams,Service manuals, Firmware Update procedure, Disassemble procedure, Universal remote control setup codes, Troubleshooting, Diagnosing, Measuring, and more.... of many of LCD/LED TV/Displays,others various electronic apparates,trough many technical notes and tips/tricks to help repairing/fixing Troubles/ faults,for electrical technicians.This site helps you to save the Earth from electronic waste!

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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Friday 29 March 2019

SONY CLOCK RADIO ICF- C470 -- C470L CLOCK RADIO ADJUSTMENTS

SONY CLOCK RADIO ICF- C470 -- C470L CLOCK RADIO Adjustments

ICF-C470 --C470L CLOCK RADIO Adjustments & Circuit Diagram _ SONY CLOCK RADIO

ADJUSTMENTS

Setting the clock and the date

Plug in the unit. The display will flash ‘AM 12:00” or “0:00”.

While holding down CLOCK, press the Time-Set+ or –ve till the correct time appears in the display. When you release the CLOCK, the clock begins to operate.. the clock system varies depending on the model you own. 12- hour system: “AM 12:00” = Midnight. 24 hour system “0:00” = Midnight. To set the current time rapidly, keep pressing the “TIME SET” + or – ve while holding down the clock.

OPERATING THE RADIO

Press RADIO ON / SLEEP to turn on the radio and adjust VOLUEME. Select FM, AM / LW and tune in to a station using TUNING.

ADJUSTING THE BRIGHTNESS OF THE DISPLAY

Set BRIGHTNESS to the position which gives you the desired display visibility [High or Low]. To turn OFF the radio, press RADIO OFF / ALARM RESET / OFF.

TO IMPROVE RADIO RECEPTION

FM: extent the FM wire antenna fully to improve FM reception.

AM [MW] / LW: rotate the unit horizontally for optimum reception. A ferrite bar antenna is built into the unit.

SETTING ALARM

To set the radio alarm, first tune in to a station and adjust volume.

While holding down the ALARM (A) RADIO, for the radio, or (b) BUZZER, for the buzzer, press TIME SET + or – till the desired time appears in the display.

When you release ALARM OR THE ALARM A or B indicator stops flashing and lights up, and the current time in the display. The alarm will come on at the preset time and will automatically turn itself off after 59 minutes.

ADJUSTING THE ALARAM LEVEL

Adjust the loudness of the alarm by setting B BUZZER VOLUEME to Small, Medium or Big. If you set Alarm A and alarm B to the same time, only Alarm A will work. The Buzzer Volume switch affects only the loudness of the buzzer alarm. Use Volume to adjust the volume of the radio alarm. To shut off the Alarm, press Radion Off / Alarm reset / Off. The alarm will come on at the preset time the next day. To cancel either alarm, press Radion Off / Alarm Reset / Off while holding dowon alarm A or B.

To doze for a few minutes, press NOOZW/DATE/SLEEP OFF. The alarm will shut off, but will come on again after 6 minutes. You can repeat this process as many times as you like. To check the preset time, press ALARM (A) or (B)

SETTING THE SLEEP TIMER

Press RADIO ON/SLEEP. The radio turns on.

Press RADIO ON/SLEEP repeatedly until the desired preset time appears on the display (90,60,45 or 15 minutes). For every push the display changes as: Current time > 90 > 60 > 45 > 30 > 15 > <(Back to current time). The radio will play for the duration you have set, and will then turn off automatically. To turn on the radio before the preset time, press SNOOZE/DATE/SLEEP OFF.

ICF-C470 Schematic & PWB