Sony Trinitron KV-20S90 Bedienungsanleitung

TRINITRON® COLOR TELEVISION

SERVICE MANUAL

BA-4D

CHASSIS

MODEL NAME REMOTE COMMANDER DESTINATION CHASSIS NO.

Self Diagnosis

Supported model

KV-20S90

9-965-905-01

KV-20S90

RM-Y155 US SCC-S27NA

RM-Y155

Trinitron

— 16 —

KV-20S90 / 21SE43C

4-1. SETTING THE SERVICE ADJUSTMENT

M DE

1. Standby mode (Power off).

2. Press the following buttons on the remote ommander within a

se ond of ea h other:

Display Channel 5 Sound Volumne + Power

SERVICE ADJUSTMENT M DE N

1. The CRT displays the item being adjusted.

Mode Display

Item

Data

SERVICE HSIZ 0

2. Press 1 or 4 on the Remote Commander to sele t the item.

3. Press 3 or 6 on the Remote Commander to hange the data.

4. Press MUTING then ENTER to write into memory.

SERVICE ADJUSTMENT M DE MEM RY

Mode

WRITE

ENTER

Green

Red

MUTING

SERVICE

1. Press 8 then ENTER on the Remote Commander to initialize.

Mode

Carry out Step 1 when adjusting

IDs 0-7 and when repla ing and

adjusting IC003

SERVICE RESET

2. Turn set off then on to exit servi e adjustment mode.

4-2. MEM RY WRITE C NFIRMATI N

METH D

1. After adjustment, pull out the plug from the AC outlet, then repla e

the plug in the AC outlet again.

2. Turn the power swit h ON and set to Servi e Mode.

3. Call the adjusted items again to onﬁ rm they were adjusted.

4-3. REM TE ADJUSTMENT BUTT NS AND

INDICAT RS

SECTI N 4: CIRCUIT ADJUSTMENTS

ELECTRICAL ADJUSTMENTS BY REM TE C MMANDER

Use the Remote Commander

(RM-Y155) to perform the ir uit adjustments in this se tion.

Test Equipment Required: 1. Pattern generator 2. Frequen y ounter 3. Digital multimeter 4. Audio os illator

RM-Y155

MUTING

DISPLAY

VOLUME (+)

POWER

ENTER

(Enter into

memory)

(Servi e Mode)

Disp. (Item up)

(Devi e Item Up)

Disp. (Item down)

(Initialize)

(Servi e Mode)

Item (Data up)

Item (Data down)

(Devi e item down)

(Enter into

memory)

(Remove from

memory)

(Servi e Mode)

— 17 —

KV-20S90 / 21SE43C

ADJUSTMENT ITEMS (1 F 2)

Reg # ITEM FUNCTI N

DATA

RANGE

INITIAL

DATA VIDE

AVERAGE

DATA

1 HSIZ Horizontal Amp. Adjustment 0-31 31 31

2 HPOS Horizontal Position Adjustment 0-31 21 20

3 VBOW Verti al Line Bowing Adj. 0-15 6 6

4 VANG Verti al line Bowing Slant Adj. 0-15 6 6

5 TRAP Horizontal Trapezoid Adj. 0-15 15 15

6 PAMP Horizontal PIN Distortion Adj. 0-31 31 31

7 CPIN SAME AS PAMP-SCRN TP/BTM 0-31 31 31

8 VSIZ Verti al Amp. Adjustment 0-31 43 37

9 VPOS Verti al Position Adj. 0-31 35 38

10 VLIN Verti al Linearity Adj. 0-15 7 7

11 SCOR Verti al Amount Adj. 0-15 7 7

12 VZOM Verti al Zooming 0,1 0 0

13 EHT Verti al High-Voltage Corre tion 0-15 15 4

14 ASP Aspe t Ratio Control 0-63 47 47

15 SCRL 16:9 CRT Z Mode Trans. S roll 0-31 31 31

16 HBLK RGB Out Width Control 0,1 1 1

17 LBLK Left S reen HBLK Control 0-15 15 15

18 RBLK RGT S reen HBLK Control 0-15 3 3

19 VUSN V Saw Waveform Compress 0,1 0 0

20 HDW Horizontal Drive Pulse Width 0,1 1 0

21 EWDC EW/ D.C. Adjustment 0,1 0 0

22 LVLN Lower S reen BTM Verti al Line Adj. 0-15 0 0

23 UVLN Upper S reen Top Verti al Line Adj. 0-15 0 0

24 RDRV R Output Drive Control 0-31 30 27

25 GDRV G Output Drive Control 0-31 24 22

26 BDRV B Output Drive Control 0-31 21 22

27 RCUT R Output Cutoff Control 0-15 10 9

28 GCUT G Output Cutoff Control 0-15 7 4

29 BCUT B Output Cutoff Control 0-15 7 4

30 DCOL Dynami Color On/Off 0,1 0 0

31 SHUE Sub HUE 0-15 15 18

32 SCOL Sub Color 0-15 14 18

33 SBRT Sub BRIGHTNESS 0-15 7 10

34 RON R Output On/Off 0,1 1 1

35 GON G Output On/Off 0,1 1 1

36 BON B Output On/Off 0,1 1 1

37 AXPL Axis PAL 0,1 0 0

38 AXNT Axis NTSC 6.00 ± 0.8 0 0

39 CBPF Chroma BPF On/Off 0,1 1 1

40 CTRP Y TRAP FILTER On/Off 6.00 ± 0.9 0 1

41 COFF Color On/Off 0,1 0 0

42 KOFF Set Color Killer 6.00 ± 0.8 0 0

43 SSHP Sub SHARPNESS 0-15 9 6

44 SHPF SHARPNESS Cir uit Fo 0,1 1 1 *

45 PREL Pre-Shoot / Over-Shoot Swit hing 0,1 1 1

46 Y-DC Axis NTSC 0,1 1 1

47 GAMM Chroma BPF On/Off 0,1 0 0

48 VTH Color On/Off 0,1 1 1

49 ABLM ABL Control Mode 0,1 1 1

50 YDEL Set Color Killer 0,1 7 7

51 NCOL Sub Sharpness 0-15 1 1

* = TV/VIDEO = 0

— 18 —

KV-20S90 / 21SE43C

Fun tion

Mode

SERVICE

Data

ID0 25

Notes:

No. 1-78 show the order that ea h adjustment mode may be sele ted while in Servi e Mode.

Data Range shows the range of possible setting for ea h Adjustment Mode.

Initial Data shows the standard settings for ea h Adjustment Mode.

Reg # ITEM FUNCTI N

DATA

RANGE

INITIAL

DATA VIDE

AVERAGE

DATA

52 FSC G Output On/Off 0,1 0 1

53 K-ID B Output On/Off 0,1 0 0

54 HOSC Horizontal VCO Os illation Freq. 0-15 10 7

55 VSS Verti al Syn Sli e Level 0,1 0 0

56 HSS Horizontal Syn Sli e Level 0,1 0 0

57 HMSK HMASK On/Off 0,1 1 1

58 VTMS Sele t Signal VTIM Pin 0-3 0 0

59 CDMD Verti al Count Down Mode Swit hing 0-3 3 3 **

60 AFC AFC Loop Gain Swit hing 0-3 0 0 *

61 FIFR Field Frequen y 0-3 3 3

62 SBAS Sub Bass 0-15 8 8

63 STRE Sub Treble 0-15 9 9

64 SBAL Sub Balan e 0-15 13 13

65 DISP O.S.D Display Position 0-127 15 5

66 PADJ POWER ADJUSTMENT 0-63 51 42

67 HCHM H SYNCH SEP. LIMIT FOR TUNER 0-127 69 69

68 HCLM H SYNCH SEP. LIMIT FOR TUNER 0-127 16 16

69 HCHS H SYNCH SEP. LIMIT FOR VIDEO 0-127 69 69

70 HCLS H SYNCH SEP. LIMIT FOR VIDEO 0-127 16 16

71 ID0 0-255 SEE ID MAP

72 ID1 0-255 SEE ID MAP

73 ID2 0-255 SEE ID MAP

74 ID3 0-255 SEE ID MAP

75 ID4 0-255 SEE ID MAP

76 ID5 0-255 SEE ID MAP

77 ID6 0-255 SEE ID MAP

78 ID7 0-255 SEE ID MAP

* = TV/VIDEO = 0

** = TV = 0, VIDEO = 1

Model Destination ID-0 ID-1 ID-2 ID-3 ID-4 ID-5 ID-6 ID-7

KV-20S90 US 25 3 1 227 3100

KV-21SE43C E 17 3 1 195 115 1 0 0

ID MAP

ADJUSTMENT ITEMS (2 F 2)

4-4. A B ARD ADJUSTMENTS

H. FREQUENCY ADJUSTMENT

1. InputTV mode (RF) with no signal.

2. Set to Servi e Adjustment Mode.

3. Conne t a frequen y ounter to base of Q501

(TP-500 H. DRIVE).

4. Che k H. Frequen y for 15735 ± 200 Hz.

5. Press MUTING then ENTER to save into the memory.

— 19 —

KV-20S90 / 21SE43C

V. FREQUENCY CHECK

1. Sele t video 1 with no signal input.

2. Set the onditions for a standard setting.

3. Conne t the frequen y ounter to TP-508 or CN501 pin 6(V DY+)

onne tor and ground.

4. Che k that V. Frequen y shows 60 ± 4 Hz.

SUB C NTRAST ADJUSTMENT (RDRV)

1. Input a olor-bar signal.

2. Set the red olor on (1).

3. Set in Servi e Adjustment Mode.

4. Sele t the item DCOL level to 0.

5. Set the onditions as follows:

PICTURE: MAX

COLOR: MIN

BRIGHT: CENTER

R ON: ON (1)

G ON: OFF (0)

B ON: OFF (0)

Display

Item

Mode

SERVICE RON

1: ON

0: OFF

6. Conne t an os illos ope probe to CN301 pin 2 (Red Out) and

ground .

7. Sele t RDRV with 1 and 4 .

8. Adjust the value of RDRV with 3 and 6 for

1.50 ± 0.05 Vpp.

1.50 ± 0.05 Vpp

White

Bla k

9. Reset the item DCOL to 1.

10. Press MUTING then ENTER to save into the memory.

11. Return the following ba k to normal after adjustment.

PICTURE: MAX

COLOR: CENTER

BRIGHT: CENTER

R ON: ON (1)

G ON: OFF (1)

B ON: OFF (1)

DISPLAY P SITI N ADJUSTMENT (DISP)

1. Input a olor-bar signal.

2. Set to Servi e Adjustment Mode.

3. Sele t DISP with 1 and 4 .

4. Adjust values of DISP with 3 and 6 to adjust hara ters to the enter.

5. Write to memory by pressing MUTING then ENTER .

6. Che k to see if the text is displayed on the s reen.

Display

Item

Mode

Item

Data

SERVICE DISP 15

SUB BRIGHT ADJUSTMENT (SBRT)

1. Input a rosshat h signal.

2. Set to Servi e Adjustment Mode.

3. Set the PICTURE and BRIGHTNESS to minimum.

4. Sele t the SBRT item with 1 and 4 .

5. Adjust the values of SBRT with 3 and 6 to obtain a faintly visible

rosshat h.

6. Press MUTING then ENTER to save into the memory.

SUB HUE, SUB C L R ADJUSTMENT (SHUE,

SC L)

1. Input a olor-bar signal.

2. Set to Servi e Adjustment Mode.

3. Conne t a probe to TP47B B-OUT (C Board).

4. Measure white V1 and blue V4.

4.1) In rease SCOL Register +1 setp.

STANDARD

|V4 - V1| = ± 0.2Vpp

|V3 - V2| = ± 0.2Vpp

V1 V2 V3 V4

5. Press MUTING then ENTER to save into the memory.

— 20 —

KV-20S90 / 21SE43C

V. SIZE ADJUSTMENT (VSIZ)

1. Input a rosshat h signal.

2. A tivate the Servi e Adjustment Mode.

3. Sele t the VSIZ item with 1 and 4 .

4. Adjust value of VPOS with 1 and 4 for the best verti al enter.

5. Press MUTING then ENTER to save into the memory.

V. CENTER ADJUSTMENT (VP S)

1. Input a rosshat h signal.

2. Set to Servi e Adjustment Mode.

3. Sele t the VPOS item with 1 and 4 .

4. Adjust value of VPOS with 3 and 6 for the best verti al enter.

5. Press MUTING then ENTER to save into the memory.

H. CENTER ADJUSTMENT (HP S)

Perform this adjustment after performing H. Frequen y.

1. Input a rosshat h signal.

2. Set to Servi e Adjustment Mode.

3. Sele t the HPOS item with 1 and 4 .

4. Adjust the value of HPOS with 3 and 6 for the best horizontal enter.

5. Press MUTING then ENTER to save into the memory.

V. LINEARITY (VLIN), V. C RRECTI N

1. Input a rosshat h signal.

2. V.Corre tion is automati ally adjusted from the ir uit and should

satisfy the onditions below.

V LINEARITY (VLIN)

V CORRECTION

SERVICE ADJUSTMENT M DE MEM RY

1. Change the value of the DCOL item to 1.

2. After ompleting all adjustments, press 0 then ENTER .

Read From Memory

Green

Red

ENTER

Mode

SERVICE READ

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