THREE TERMINAL VOLTAGE REGULATOR

These voltage regulators are monolithic integrated circuits designed as
fixed–voltage regulators for a wide variety of applications including local,
on–card regulation. These regulators employ internal current limiting,
thermal shutdown, and safe–area compensation. With adequate heatsinking
they can deliver output currents in excess of 1.0 A. Although designed
primarily as a fixed voltage regulator, these devices can be used with
external components to obtain adjustable voltages and currents.
• Output Current in Excess of 1.0 A
• No External Components Required
• Internal Thermal Overload Protection
• Internal Short Circuit Current Limiting
• Output Transistor Safe–Area Compensation
• Output Voltage Offered in 2% and 4% Tolerance
• Available in Surface Mount D2PAK and Standard 3–Lead Transistor
Packages

BASIC ELECTRONICS REGULATED POWER SUPPLIES

Unfortunately our hobby circuit work on different voltages and a power supply with single voltage will not be sufficient. Simplest way would be to buy a multi-tapped transformer and connect the voltage taps with a suitable switch. These transformers are available with taps of 1.5, 3, 4.5, 6, 9, 12v. We need a single multi throw switch ( as many throws as there are taps). With 9-6-0-6-9 transformer and with a double pole double throw switch, you can get 6 and 9V dc. With the same transformer , and with a double pole double throw switch it is possible to get 3, 6, 9, 12, 15, 18V. Switches and multi – taped transformers are difficult to procure; cumbersome and even unavailable at some places.

Such schematics are not shown here as there are better way to build circuits to get variable voltages. Also these power supplies suffer from a major draw back ; poor valtage regulation, voltage fluctuations.

A12V power supply shown in schematic 3 may show as much as 16.8V without load and it may go down to less than 12V as the load current is increased. This still can be and is safely circuits, we will user them for the pleasure and ease of using them and build regulated power supply as a starter.

We have some wonderful devices in three terminal regulators, just three terminals, IN- GROUND – OUT                                                          

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BASIC ELECTRONICS IC

INTIGRATED CIRCUIT ( IC )

Intigrated Circuit actually consist of a number of active electronic components such as transistors and diodes along with other passive components such as resistors and capacitors interconnected as a single unit on semi conducting wafer usually silicon. Integrated circuits are classified as analog, digital and mixed signal (both analog and digital on the same chip).

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SANSUI FURATTO -21 SERVICE DATA

A complete parts list of SANSUI FURATTO -21. With circuit diagram ,
service code, system ic, croma ic, memory ic, power, smps transformer, eht,
horizontal output , horizontal oscillator coil, vertical ic, audio ic, tunner,
Remote, service mode and many more....

SERVICE MODE DATA

MODEL NO-	SANSUI FURATTO -21
SYSTEM	IC NO - 8823CPNG4PB8

AGL	40	D-DRIVE	60
ABL	3	G-DRIVE	55
YPL	0	OSDV	18
BST	0	OSDH	7
ASSH	70	VSD	0
OSDA	7	TIF	3
OSDL	3	BCD	95
SSHR	7	GDC	100
SNCL	1	RDC	101
STIN	2	SC	1
S-COL	15	HSH	8
S-BRT	8	VSH	1
S-CON	10	VA	26
WIDE	10	VL	15
ZOOM	0	AGC	4

ONIDA PROMISE 14

A complete parts list of ONIDA PROMISE 14. With circuit diagram , service code, system ic, croma ic, memory ic, power, smps transformer, eht, horizontal output , horizontal oscillator coil, vertical ic, audio ic, tunner, Remote, service mode and many more....

MODEL	ONIDA PROMISE 14
SYSTEM	M37220M3-201-SP
MEMORY	24C08
CROMA	M52771ASP
VERT	LA7840
AUDIO	TDA2614
EHT	EF 22445M
REMOTE
SERVICE	VSM + DIS (RC

	PAGE-1
WHITE BLACK	0	DT-NTSC	5
BFP	0	DT SECAM	55
BGPSW	1	DT PAL	5
VIDEO GAIN	5	CV	1
N3.58	0	HR	1
SECAM	0	FTRAP	0
D.K.K1	1	D TRAP	0
1	1	VCO	7F
BGPSW	1	RF AGC	56
AV-SHARP	OFF	H CENTER 60	2
AV TINT	OFF	H CENTER 50	7
DT-B/W	5	VER-POS	3

PAGE-2
ZOOM SIZE	41
VER SIZE	26
SUB TINT	1F
SUB BRI	50
SUB COL	40
SUB CON	4
B DIRVE	31
R DRIVE	39
B CUT	BA
G CUT	8E
R CUT	9A

LG -MODEL NO- RF -21 FC80E SERVICE DATA

A complete parts list of LG -MODEL NO- RF -21 FC80E . With circuit diagram , service code, system ic, croma ic, memory ic, power, smps transformer, eht, horizontal output , horizontal oscillator coil, vertical ic, audio ic, tunner, Remote, service mode and many more....

SERVICE   DATA  OF  LG   RF  21  SERVICE MODE DATA

MODEL	LG RF -21 FC80E
SYSTEM	TDA-9381/PS/N2/3/0955
AUDIO	TDA7279
TUNNER	TEC E949PG35L
EHT	SALORA-6174V-6006V-8A29A
AUDIO PROC	TDA 9859

PAGE-1
AGC	31	VS	30
RG	31	HS	30
GG	31	SC	21
BG	31	SHOOT	1
BLO-R	31	NP	83
BLO-G	31	SP	34
CDL	12	SC1-V	60
L-DLY	4	SC2-V	60
AV-AGC	6	PLL-5	26
PEAK	8	FMWS	1
VL	32	PSNS	1
VA	21	WFR	0

PAGE-2
CMUTE	1	ACMS	1
DVD	0	T-SCH	1
2IN1	0	T-PIS	1
TOP	0	CURVE	0
SCART	1	HOTEL	0
TBS	0	2ND IF	0
EYE	0	SYS	1
4KEY	0	OSD-L	1
MONO	0	TXL-L	0
BCF	0	TBL-ON	3
GAME	1	M-VOL	100
200PR	0	ON-PR	0
CH+AV	0	MSG
DUAL	0

GREEN
VOL	100
BAL	50
RED
CON	25
BRI	50
COL	50
SHA	50
TIN	50