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 !

Saturday 16 March 2019

STRS [POWER SWITCHING REGULATORS] - PIN CONFIGURATION - DATA

STRs [Power Switching Regulators] - PIN CONFIGURATION - DATA

STR 56041- SWITCHING REGULATOR

Pin
Function
1
Ref
2
Base drive
3
Collector
4
Emitter
5
Base

STR HM9207. BASE DRIVE

Pin
Function
1
Input
2
Not connected
3
Positive bias
4
Base drive
5
Negative bias
6
Output

STR 40115. POWER REGULATOR.

Pin
Function
1
Error amp input
2
Base drive
3
Collector
4
Output
5
Ground

STR 50213. POWER REGULATOR

Pin
Function
1
Ground
2
Base
3
Collector
4
Emitter
5
Control

STR 50100. POWER REGULATOR.
Pin
Function
1
Ground
2
Base
3
Collector
4
Emitter
5
Control

STR371. POWER REGULATOR.

Pin
Function
1
Regulator
2
Regulator drive
3
Error amplifier
4
Regulator

STR 370. POWER REGULATOR.

Pin
Function
Voltage
1
Input supply
132
2
Regulated voltage out
109
3
Ground

4
Error amp. Onput [Ref. Voltage]
110

STR 2SD680R / 3SD1265R. POWER REGULATOR.

Pin
Function
Voltage
1
Collector
278
2
Ground

3
Base drive
18
4
Control
0.7
5
Control
6.7

STR SMR-40000. POWER REGULATOR.
Pin
Function
Voltage
1
PLIM
38mv
2
Gate
990mv
3
Drain
310v
4
Source
37mv
5
Feedback
-9.41v

STR 441. 

Pin
Function
Voltage
1
Switching
282
2
Switching
0
3
Error amplifier
107.5
4
Switching
0.28

STR 440. ERROR AMPLIFIER DRIVE AND SWITCH.

Pin
Function
Voltage
1
Supply voltage
282
2
Ground

3
Switched regulated supply voltage out
107.5
4
Switch
0.3
STR-D 1005T. SUB POWER REGULATOR

Pin
Function
Voltage
1
Charging capacitor
5
2
Start bias input
0.2
3
Regulator
300
4
Ground

5
Feedback
0

STR 456A. SWITCHING REGULATOR

Pin
Function
Voltage
1
Switching regulator
296
2
Switching regulator
113
3
Ground

4
Switching
113

STR F6654. POWER REGULATOR

Pin
Symbol
Function
Voltage
ON
STANDBY
1
OCP/FB
Over current protect feedback
1.89
1.63
2
SOURCE
Source of switching FET inside STR
0.03
0
3
DRAIN
Drain of switching transistor inside STR
325
330
4
Vin
Voltage input
16.6
14.9
5
GND
Ground



STR 6020. POWER REGULATOR

Pin
Function
Voltage
1
Unregulated voltage input
300
2
Feedback [output to input]
50
3
Error amplifier input
36
4
Switching signal output
50
5
Regulated power output
54

STR 5412; BASE DRIVE

Pin
Function
On-condition voltage
Standby condition voltage
1
Input
310
300
2
Base drive
90
0
3
Ground


4
Output
90
0
5
Remote
30
0

STR 10006: SUB POWER REGULATOR

Pin
Function
1
Error voltage output
2
Base drive input
3
Collector of switching transistor
4
Collector of error transistor
5
Ground
STR S6307 / STR S6309 – POWER REGULATOR

Pin
Function
Voltage
1
Collector of switching transistor inside Ic
400
2
Common [emitter of switching transistor]
2.1
3
Base of switching transistor inside Ic
3.2
4
Drive [voltage control]
0.4
5
Drive [voltage control]
20
6
Current detector
0
7
Ground

8
Drive [base error amp:]
3
9
Pulse modulation coupler
5.8
STR S6707N / STR S6708 / STR 6709 – POWER REGULATOR

Pin
Function
Voltage
1
Collector of switching transistor inside the STR
300
2
Ground

3
Base of switching transistor inside the STR
0.1
4
Sink
0.1
5
Drive
0.5
6
Over current protector [OCP]
0
7
Feedback
0.1
8
INH
1
9
Voltage input [supply]
9
STR 50215 -  POWER SUPPLY REGULATION
Pin
Function
1
Ground
2
Starting voltage
3
Unregulated DC input
4
Regulated output
5
Regulator switch

STR 50113-M – POWER SUPPLY

Pin
Function
1
Ground
2
Reference voltage
3
Unregulated DC
4
Control voltage
5
Output

STR50112/STR50115B/STR50103 – BASE DRIVE

Pin
Function
On condition voltage
Standby condition voltage
1
Ground


2
Base drive
100
55
3
Input
500
400
4
Output
100
55
5
Vo. control
6.6
6.4

STR 58041 – Base drive

Pin
Function
On condition voltage
Standby condition voltage
1
Vout sense(-)
90
0
2
Base drive(B_
90
0
3
Input
300
300
4
Ground


5
Vo.control
Adj
Adj


IX 1779CE _ SMPS control IC
Pin No
Function
Voltage
1
IS
0/0
2
IN
0/0
3
MAX
0/0
4
Ground

5
Ground

6
E
2.9/2.9
7
S
2.6/2.6
8
C3
9/10
9
C1
3/3
10
C4
2.5/2.5
11
RE
2.6/2.6
12
Ground

13
Ground

14
Drive out
1.4/1.7
15
Drive Cot
10.3/10.4
16
Positive supply
11.1/11.2
STR 44115 – DRIVE CONTROL SOFT STARTER SW REGULATOR

Pin
Function
Voltage
1
Detector
235
2
Drive control
115
3
--
300
4
--
115
5
Soft starter
--
STR 54041S – SWITCHING REGULATOR

Pin
Function
1
Ref
2
Base drive
3
Supply input
4
Reg Control
5
Reg control
Posted By: FRANK at 03:45
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