Sony KV-27S42 service manual Board Schematic Diagram Board Waveforms, Board IC Voltage List

Page 26

A BOARD SCHEMATIC DIAGRAM

A BOARD WAVEFORMS

1	2	3	4
1.0 Vp-p (H)	2.0 Vp-p (H)	4.7 Vp-p (H)	3.6 Vp-p (8MHz)
5	6	7	8
1.0 Vp-p (H)	0.7 Vp-p (H)	0.9 Vp-p (H)	4.0 Vp-p (V)
9	10	11	12
2.0 Vp-p (H)	0.9 Vp-p (H)	1.7 Vp-p (H)	1.4 Vp-p (V)
13	14	15	16
1.4 Vp-p (V)	5.5 Vp-p (H)	5.3 Vp-p (H)	3.8 Vp-p (H)
17	18	19	20

3.1 Vp-p (H)	3.1 Vp-p (H)	1.3 Vp-p (H)	0.7 Vp-p (H)

21	22	23	24

	1.2	Vp-p (H)	2.5 Vp-p (H)	182.8 Vp-p (H)	23.4 Vp-p (H)

	25		26	27	28
	1.08	KVp-p (H)	30.4 Vp-p (H)	54.3 Vp-p (V)	31.1 Vp-p (V)

	29		30
	2.4 Vp-p (V)		112.5 Vp-p (H)

A BOARD IC VOLTAGE LIST

KV-27S42/27S46/27S66/29AL42/29AL42C/29AL66/ 29AL66C/29SL42/29SL42C/29SL46/29XL42M

A BOARD IC VOLTAGE LIST

IC001			IC002			8	4.2		18	3.5		23	5.1		6	10.2
pin	volt		pin	volt		9	5.1		19	3.1		24	0.0		7	0.1
1	0.6		1	7.1		10	4.2		20	2.5		25	1.1		8	13.8
2	4.8		2	GND		11	NC		21	1.6		26	0.0		IC541
3	0.0		3	5.4		12	GND		22	1.8		27	2.5		pin	volt
4	0.0		4	GND		13	4.9		23	1.8		28	5.1		1	1.6
5	4.8		5	GND		14	4.3		24	1.8		29	2.3		2	13.8
6	0.0		6	4.9		15	4.3		25	NC		30	2.3		3	-13.4
7	0.0		7	GND		16	4.3		26	NC		IC401			4	-15.3
8	0.2		8	4.9		17	GND		27	NC		pin	volt		5	0.0
9	0.0		IC003			18	GND		28	NC		1	0.7		6	14.6
10	NC		pin	volt		19	4.9		29	0.0		2	NC		7	1.6
11	NC		1	GND		20	4.9		30	4.6		3	2.3		IC601
12	3.3		2	GND		21	GND		31	4.6		4	14.3		pin	volt
13	0.0		3	GND		22	NC		32	4.6		5	2.3		1	1.8
14	4.9		4	GND		23	5.0		33	8.9		6	GND		2	0.2
15	0.0		5	4.9		24	NC		34	4.9		7	0.3		3	151.7
16	0.0		6	4.9		25	4.2		35	4.9		8	6.9		4	17.3
17	-0.3		7	GND		26	4.2		36	0.0		9	GND		5	GND
18	4.9		8	4.9		27	5.0		37	4.4		10	6.9		IC602
19	4.9		IC004			28	NC		38	5.2		11	6.9		pin	volt
20	1.8		pin	volt		29	NC		39	5.2		12	GND		1	135
21	0.0		1	2.9		30	GND		40	GND		13	6.9		2	121
22	2.2		2	4.9		31	NC		41	NC		IC402			3	GND
23	GND		3	GND		32	4.2		42	8.9		pin	volt		IC604
24	2.3		IC010			33	4.2		43	5.2		1	4.4		pin	volt
25	2.3		pin	volt		34	5.0		44	9.0		2	GND		IN	11.7
26	GND		1	0.0		35	0.0		45	4.9		3	4.4		OUT	9.0
27	4.9		2	0.5		36	4.3		46	4.7		4	4.4		GND	GND
28	0.0		3	0.0		37	NC		47	1.9		5	4.4		All voltages are in V
29	0.0		4	GND		38	9.0		48	NC		6	4.4		All voltages are in V
29	0.0		4	GND		38	9.0		48	NC		6	4.4
30	4.9		5	NC		39	NC		IC302			7	4.4
31	4.9		6	9.0		40	4.2		1	5.1		8	4.4
32	2.8		7	0.0		41	5.1		2	0.0		9	4.4
33	4.9		8	GND		42	4.2		3	0.0		10	1.5
34	2.5		IC202			IC301			4	NC		11	4.9
35	NC		pin	volt		pin	volt		5	1.2		12	4.9
36	4.9		1	7.6		1	3.4		6	0.0		13	5.6
37	4.9		2	7.6		2	5.1		7	5.1		14	4.4
38	4.9		3	7.6		3	4.3		8	1.1		15	4.4
39	4.9		4	GND		4	5.1		9	5.1		16	4.4
40	0.5		5	7.6		5	4.8		10	0.7		17	4.4
41	0.0		6	7.6		6	4.4		11	0.0		18	4.4
42	0.0		7	7.6		7	2.2		12	2.0		19	4.4
43	4.9		8	15.3		8	4.9		13	2.8		20	4.4
44	0.1		IC203			9	5.1		14	1.0		21	9.0
45	NC		pin	volt		10	GND		15	2.2		22	4.4
46	4.9		1	4.9		11	4.3		16	0.0		IC521
47	0.0		2	4.2		12	2.4		17	0.0		pin	volt
48	0.0		3	4.9		13	3.5		18	0		1	0.1
49	0.0		4	4.2		14	3.5		19	0		2	3.8
50	0.0		5	4.9		15	5.7		20	NC		3	2.5
51	0.0		6	6.1		16	7.6		21	0		4	GND
52	0.0		7	4.9		17	0.7		22	5.1		5	9.1

	B	C	E
Q001	4.3	4.8	4.9
Q080	0.0	3.9	GND
Q082	0.2	4.6	GND
Q083	0.0	0.6	GND
Q101	0.0	4.6	GND
Q170	4.4	9.0	0.0
Q200	0.0	0.0	GND
Q201	0.6	0.0	GND
Q203	2.4	GND	0.7
Q280	5.2	GND	5.9
Q281	4.1	GND	4.7
Q282	4.1	GND	4.7
Q283	0.0	5.9	GND
Q284	0.6	0.0	GND
Q285	0.6	0.0	GND
Q286	4.4	GND	4.9
Q287	5.0	GND	5.7
Q288	7.3	9.0	6.7
Q300	0.2	3.5	GND
Q302	4.4	9.0	3.8
Q305	3.8	GND	4.4
Q306	1.7	GND	2.4
Q307	1.8	GND	2.4
Q308	1.8	GND	2.4
Q309	3.6	1.6	3.8
Q310	3.6	GND	3.8
Q349	5.2	9.0	4.6
Q350	0.7	GND	1.4

	B	C	E
Q351	1.4	8.3	0.8
Q352	8.3	1.2	8.9
Q353	1.2	GND	1.8
Q354	1.1	GND	1.7
Q355	1.7	8.2	1.1
Q356	8.2	1.5	8.8
Q357	1.5	GND	2.2
Q358	5.9	9.0	5.2
Q359	3.8	GND	4.4
Q360	4.7	GND	5.3
Q361	1.3	5.1	1.2
Q390	5.0	9.0	4.4
Q391	0.0	5.0	GND
Q501	-0.1	97.3	GND
Q521	0.1	4.2	GND
Q522	0.4	11.2	GND
Q550	0.7	0.1	GND
Q555	2.1	4.0	1.5
Q571	134.0	0.8	134.6
Q601	-0.1	0.2	0.0
Q602	0.0	17.0	0.0
Q603	17.0	2.9	17.3
Q604	0.1	3.9	GND
Q607	0.7	0.1	GND
Q610	0.0	0.7	GND
Q630	0.0	135.0	GND
Q650	5.7	9.0	5.1

All voltages are in V

	— 31 —	— 32 —	— 33 —
857 3 A Board Schem.p65	1		3/26/99, 2:30 PM

— 34 —

Image 26

Contents BA-4DCHASSIS Trinitron Color TV Specifications Standby DimensionsW/H/DTable of Contents SELF-DIAGNOSTIC Function SAFETY-RELATED Component WarningSTANDBY/TIMER LED 101Self-diagnostic Circuit Safety CHECK-OUT Leakage TestConnecting Your TV Section GeneralKV-27S42/27S46/27S66/29AL42/29AL42C/29AL66 Troubleshooting Rear Cover Removal DisassemblySection Chassis Assembly Removal Service PositionPicture Tube Removal Anode CAP RemovalBeam Landing Section SET-UP AdjustmentsAdjustment Procedure Purity ControlVertical Static Convergence Dynamic Convergence AdjustmentConvergence Horizontal Static ConvergenceMethod of Setting the Service Adjustment Mode White Balance AdjustmentsB+ Voltage Confirmation and Adjustment Section Safety Related AdjustmentsHold-down Readjustment Preparation Before ConfirmationFBT ABL11 Service Adjustment Mode On Section Circuit AdjustmentsSetting the Service Adjustment Mode Adjust Buttons and IndicatorsAdjustment Items Service Data Initial Value Average Data Name RangeBoard Adjustments Center Adjustment Vpos Sub Hue, Sub Color Adjustment SHUE, ScolSize Adjustment Vsiz Center Adjustment HposPart Replaced Adjustment Section Diagrams Block DiagramPrinted Wiring Boards and Schematic Diagrams Circuit Board LocationBoard * Mark Variant List Board Schematic Diagram Board Waveforms Board IC Voltage ListHT Board Schematic Diagram Board Schematic Diagram Board * Mark Variant List Board ICBoardtransistor Board Schematic Diagram Component Side Board WaveformsBoard Transistor Voltage List CV Board Transistor CV Board IC Voltage ListCV Board Waveforms Section Exploded Views HV Board Schematic Diagram Board IC Voltage ListSemiconductors IC1403Multi Button Emblem NO.9, SonyBeznet Assy KV-29XL42M GUIDE, LEDCV Mounted PC Board Beznet AssyDY Y29NXA-V Piece a 110, Conv CorrectCABLE, P-P CORD, Power with Connector25 A-1372-617-A HV VAR Mounted PC Board Model Common Parts Listing a CapacitorCommon Parts Listing Connector DiodeChip Conductor Ferrite BeadJack CoilTransistor 2SD601A-Q ResistorQ300 Transistor 2SA1091-OREF.NO. Part no Metal CarbonTransformer SwitchRelay RES, ChipCrystal ThermistorTuner Diode Thermistor Board Variant Parts ListConnector Transformer LINK, IC400V Diode Transformer560µF KV-27S46 680µFConnector Switch KV-29SL46Board Variant List KV-27S66 IC STR-F6626RES,CHIP Board Variant List KV-29AL42/29AL42C Transformer CapacitorTHP601 ! 1-803-540-11 Thermistor Transistor Thermistor Board Variant List KV-29AL66/29AL66CJack Transformer R391J1751 ! 1-251-688-11 SOCKET, CRT 125V J17010022µF KV-27S42/27S46/27S66 onlyFuse VaristorHV K REF.NO. Part NO. Descriptionremark C3301 Accessories and Packing Material Remote CommanderPage Page Sony Corporation 965-857-01CORRECTION-1 733-873-05 CRT 29NXDYY29VXA-V2 IncorrectCorrect SUPPLEMENT-1 Chassis KV-27S46/27S42/29SL42/29SL42C/29SL46/29XL42M/29SL43 SUPPLEMENT-2 Beznet Assy KV-29XL42M Correction

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KV-27S42 specifications

The Sony KV-27S42, KV-27S66, and KV-27S46 are notable models within Sony's acclaimed line of Trinitron televisions, which contributed significantly to the brand's reputation for delivering high-quality viewing experiences. These models are characterized by their sturdy construction, vibrant picture quality, and user-friendly features, which made them popular among consumers during their release.

The KV-27S42 model is equipped with Sony's advanced Trinitron technology, offering a flat CRT screen that minimizes glare and enhances color accuracy. With a 27-inch display size, the KV-27S42 is designed to provide an immersive viewing experience without occupying excessive space in the living room. This model also features a variety of input options including composite, S-video, and RF inputs, allowing users to connect multiple devices such as VCRs, DVD players, and gaming consoles effortlessly.

The KV-27S66 model builds upon the strengths of its predecessor with enhancements in audio and video technologies. It features a built-in 2-channel sound system that delivers clear and dynamic audio, complementing the stunning visuals produced by the Trinitron display. The KV-27S66 also includes a digital comb filter, which improves picture sharpness by separating the brightness and color signals, resulting in reduced artifacts and enhanced clarity.

Meanwhile, the KV-27S46 incorporates some of the latest technologies of its time, such as the use of Super Fine Pitch Trinitron technology. This innovation enhances the display's resolution, offering finer detail and more precise color reproduction. The KV-27S46 also supports multiple viewing formats, making it suitable for various video sources, including standard cable and DVDs.

Each of these models is designed with an intuitive on-screen menu that simplifies the navigation of settings, making it easy for users to adjust picture and sound settings to their preferences. Remote control functionality further enhances the user experience, allowing for effortless operation from a distance.

In summary, the Sony KV-27S42, KV-27S66, and KV-27S46 televisions stand out for their historical significance in delivering quality display and audio technologies. With various features that cater to home entertainment needs, these televisions remain a testament to Sony's lasting legacy in the consumer electronics market. While these models may not compete with today's flat-screen technology, they were pioneering products that set the stage for future innovations in television design and performance.