JVC AV-T2122 Bedienungsanleitung

No.51866

Aug.2001

V-T2122

AV-T2122/AR

CONTENTS

!SPECIFICATIONS ････････････････････････････････

････････････････････････････････････････････････････････････････

･････････････････････････････････････････････････････････････

･･････････････････････････････････････････････････････････

･････････････････････････････ 2

!SAFETY PRECAUTIONS ････････････････････････････････

････････････････････････････････････････････････････････････････

･･･････････････････････････････････････････････････････

･･････････････････････････････････････････････

･･･････････････････････ 3

!FEATURES････････････････････････････････

････････････････････････････････････････････････････････････････

･･･････････････････････････････････

･･････

･･･ 4

!FUNCTIONS････････････････････････････････

････････････････････････････････････････････････････････････････

･･････････････････････････････････

････

･･ 4

!SPECIFIC SERVICE INSTRUCTIONS ････････････････････････････････

････････････････････････････････････････････････････････････････

･････････････････････････････････････････････

･･････････････････････････

･････････････ 6

!SERVICE ADJUSTMENTS ････････････････････････････････

････････････････････････････････････････････････････････････････

･････････････････････････････････････････････････････

･･････････････････････････････････････････

･････････････････････ 10

!PARTS LIST････････････････････････････････

････････････････････････････････････････････････････････････････

･････････････････････････････････

･･

･29

★

OPERATING INSTRUCTIONS

★

STANDARD CIRCUIT DIAGRAM (APPENDIX) ････････････････････････････････

････････････････････････････････････････････････････････････････

･････････････････････････････････････

･･････････

･････ 2-1

SERVICE MANUAL

COLOR TELEVISION

BASIC CHASSIS

GA2

No.51866

V-T2122

MEMORY IC REPLACEMENT

1. Memory IC

This model uses a memory IC.

The memory IC stores data for proper operation of video and deflection circuits.

When replacing, be sure to use an IC containing this (initial value) data.

2. Memory IC replacement procedure

PROCEDURE SCREEN DISPLAY

(1) Power off

Switch off the power and disconnect the power cord from the wall

outlet.

(2) Replace the memory IC.

Be sure to use memory ICs written with the initial data values.

(3) Power on

Connect the power cord to the wall outlet and switch on the power.

(4) System constant check and setting

１) Simultaneously press the DISPLAY key and VIDEO STATUS key

of the remote control unit.

２) The SERVICE MENU screen of Fig.1 is displayed.

３) While the SERVICE MENU is displayed, again simultaneously

press the DISPLAY and VIDEO STATUS keys to display the Fig.2

SYSTEM CONSTANT screen.

４) Refer to the SYSTEM CONSTANT table and check the setting

items. Where these differ, select the setting item with the MENU

UP / DOWN key and adjust the setting with the MENU LEFT /

RIGHT keys. (The letters of the selected item are displayed in

yellow.)

５) After adjusting, release the MENU LEFT / RIGHT key to store the

setting value.

６) Press the EXIT key twice to return the normal screen.

(5) Receive channel setting

Refer to the OPERATING INSTRUCTIONS (USER’S GUIDE) and

set the receive channels (Channels Preset) as described.

(6) User settings

Check the user setting items according to Table 2-1 and 2-2.

Where these do not agree, refer to the OPERATING

INSTRUCTIONS (USER’S GUIDE) and set the items as described.

(7) SERVICE MENU setting

Verify what to set in the SERVICE MENU, and set whatever is

necessary. (Fig.1) Refer to the SERVICE ADJUSTMENT for setting.

SYSTEM CONSTANT

SELECT BY

OPERATE BY EXIT BY

VIDEO : 2

AUDIO : MTS

VARI. OUT : NO

GAME : YES

CINEMA : YES

EXIT

SYSTEM CONSTANT

SELECT BY

OPERATE BY EXIT BY

CCD : YES

RETURN+ : YES

SURROUND : YES

M37272MA-

×××

××××××

×××

EXIT

SERVICE MENU

SELECT BY

OPERATE BY EXIT BY

PICTURE SOUND

VIDEO STATUS OTHERS

LOW LIGHT HIGH LIGHT

RF AFC CHK

VCO (CW) I2C BUS CTRL

EXIT

Fig.1

Fig.2

No.51866

V-T2122

SETTING OF SYSTEM CONSTANT SET

Setting item Setting content Setting value

VIDEO 2

AUDIO MTS

VARI. OUT NO

GAME YES

CINEMA YES

CCD YES

RETURN + YES

SURROUND YES

USER SETTING VALUES

1.Setting of FUNCTION

Setting item Setting value Setting item Setting value

MAIN POWER OFF DISPLAY OFF

SUB POWER ON SLEEP TIMER 0 MIN

CHANNEL CH 02 VIDEO STATUS ESTANDAR

CAPTION OFF(CC1/T1) PICTURE BOOSTER OFF

VOLUME 10 COLOR SYSTEM AUTO

TV/VIDEO TV HYPER SURROUND OFF

2.Setting of MENU

Setting item Setting value Setting item Setting value

TINTE ESTANDAR ALTAVOCES SI

COLOR ESTANDAR CHILD LOCK NO

CONTRASTE ESTANDAR TEMPORIZADOR NO

BRILLO ESTANDAR LISTA DE CANAIS SET OPTIONALLY

DETALLE ESTANDAR AJUSTE CODIGO DE ACCESO Unnecessary to Set

GRAVES CENTER PANTALLA AZUL NO

AGUDOS CENTER FONDO NEGRO SI (SIM)

BALANCE CENTER IDIOMA ESP.

MTS ESTÉREO SUBTITULOS OCULTOS NO(CC1/T1)

MONO PH.MONO MTS

YES NO

Table 1

Table 2-2

Table 2-1

No.51866

V-T2122

SERVICE ADJUSTMENTS

ADJUSTMENT PREPARATION$

1. You can make the necessary adjustments for this unit with either the remote control unit or with the adjustment equipment and

parts as given below.

2. Adjustment with the remote control unit is made on the basis of the initial setting values, however, the new setting values which

set the screen to its optimum condition may differ from the initial settings.

3. Make sure that AC power is turned on correctly..

4. Turn on the power for the set and test equipment before use, and start the adjustment procedures after waiting at least 30 minutes

5. Unless otherwise specified, prepare the most suitable reception or input signal for adjustment.

6. Never touch any adjustment parts, which are not specified in the list for this adjustment-variable resistors, transformers, condensers, etc.

7. Presetting before adjustment.

Unless otherwise specified in the adjustment instructions, preset the following functions with the remote control unit.

VIDEO STATUS ESTANDAR

GRAVES, AGUDOS, BALANCE CENTER

ADJUSTMENT EQUIPMENT

1. DC voltmeter(or digital voltmeter)

2. Oscilloscope

3. Signalgenerator ( Pattern generator ) [NTSC%M]![PAL-M] [PAL-N]

4. Remote control unit

5. TV audio multiplex signal generator

6. Frequency counter

ADJUSTMENT ITEMS

●B1 POWER SUPPLY

●IF VCO adjustment

●RF AGC adjustment

●FOCUS adjustment

●

DEFLECTION adjustment

V. HEIGHT, V. POSITION, V. LIN., V S CR adjustment

H. POSITION adjustment

●VIDEO / CHROMA adjustment

WHITE BALANCE (Low light) adjustment

WHITE BALANCE (High light) adjustment

SUB BRIGHT adjustment

SUB CONTRAST adjustment

SUB COLOR adjustment

SUB TINT adjustment

●MTS adjustment

INPUT LEVEL adjustment

STEREO VCO adjustment

SAP VCO adjustment

FILTER check

SEPARATION adjustment

No.51866

V-T2122

ADJUSTMENT LOCATIONS

MAIN PWB

FRONT

UPPER : FOCUS

LOWER : SCREEN

TUNER

IC101

IC704

IC701

CH-CH+VOL-

VOL+

F901

T522

T111

GND(TP-E)

DEG.

B1(TP-91)

MPX

AV IN OUT

5 1

CRT SOCKET PWB

(Within MAIN PWB ASS'Y)

TP-E

(

SOLDER SIDE

)

TOP

CRT EARTH

(BRAIDED ASS'Y)

TP-47B

No.51866

V-T2122

BASIC OPERATION OF SERVICE MENU

1. Operate the SERVICE MENU with the REMOTE CONTROL UNIT.

2. In general!

!!!basic setting!

!!!(adjustments) items or verifications are performed in the SERVICE MENU.

(1) PICTURE･･･････････････････ This set the setting values (adjustment values) of the VIDEO/CHROMA and DEFLECTION circuits.

(2) SOUND ････････････････････ This set the setting values (adjustment values) of the AUDIO circuit.

(3) VIDEO STATUS ･････････････ This is used when the THEATER and GAME MODE is adjusted.

(4) OTHERS ･･･････････････････ This is used when the OTHERS MODE is adjusted.

(5) LOW LIGHT･････････････････ This sets the setting values (adjustment values) of the WHITE BALANCE circuit.

(6) HIGH LIGHT ････････････････ This sets the setting values (adjustment values) of the WHITE BALANCE circuit.

(7) RF AFC CHK････････････････ This is used when the RF AFC CHK MODE is verified. [Do not adjust]

(8) VCO (CW) ･･････････････････ This is used when the IF VCO is adjusted.

(9) I2C BUS CTRL･･･････････････ This is used when ON/OFF of the I2C BUS CTRL is set. [Fixed ON]

3. Basic Operations of the SERVICE MENU

(1) How to enter the SERVICE MENU.

Press the DISPLAY key and VIDEO STATUS key!of the remote control unit at the same time to enter the SERVICE MENU screen ①

shown in figure page later.

(2) SERVICE MENU screen selection

Press the UP / DOWN key of the MENU to select any of the following items.

(The letters of the selected items are displayed in yellow.)

●PICTURE ●SOUND

●VIDEO STATUS ●OTHERS

●LOW LIGHT ●HIGH LIGHT

●RF AFC CHK

●VCO (CW) ●I

2C BUS CTRL

(3) Enter the any setting ( adjustment ) mode

"PICTURE, SOUND and OTHERS mode

1) If select any of PICTURE, SOUND or OTHERS items, and the LEFT / RIGHT key is pressed from SERVICE MENU ( MAIN

MENU ), the screen ②will be displayed as shown in figure page later.

2) Then the UP / DOWN key is pressed, the PICTURE mode screen ③or the SOUND mode screen ④or the OTHERS mode

screen ⑤is displayed, and the PICTURE, SOUND or OTHERS setting can be performed.

"VIDEO STATUS, LOW LIGHT, HIGH LIGHT, RF AFC!

!!!CHK,!

!!!VCO (CW) and I2C BUS CTRL mode

1) If select any of VIDEO STATUS / LOW LIGHT / HIGH LIGHT / RF AFC CHK / VCO (CW) / I2C BUS CTRL items, and the LEFT

/ RIGHT key is pressed from SERVICE MENU ( MAIN MENU ), the screens ⑥⑦⑧⑨⑩⑪will be displayed as shown in

figure page later.

2) Then the settings or verifications can be performed.

No.51866

V-T2122

HIGH LIGHT

***

******

*** ***

******

***

TOO HIGH

ABOVE REFERENCE

BELOW REFERENCE

TOO LOW

SYNC : YES

①

①①

①

SERVICE MENU

(

MAIN MENU

)

②

②②

②

SCREEN

⑧

⑧⑧

⑧

HIGH LIGHT MODE

⑩

⑩⑩

⑩

VOC

(

)

MODE

⑪

⑪⑪

⑪

C BUS CTRL MODE

⑥

⑥⑥

⑥

VIDEO STATUS MODE

⑨

⑨⑨

⑨

RF AFC CHK MODE

⑦

⑦⑦

⑦

LOWLIGHT MODE

④

④④

④

SOUND MODE

⑤

⑤⑤

⑤

OTHERS MODE

③

③③

③

PICTURE MODE

SERVICE MENU

SELECT BY

OPERATE BY EXIT BY

PICTURE SOUND

VIDEO STATUS OTHERS

LOW LIGHT HIGH LIGHT

RF AFC CHK

VCO

(

)

I2C BUS CTRL

EXIT

EXIT BY

EXIT

RF AFC ON

FINE

****

SELECT BY

OPERATE BY EXIT BY

EXIT

EXIT BY

EXIT

I2C BUS ON

OPERATE BY EXIT BY

EXIT

SELECT BY EXIT BY

EXIT

SELECT BY

OPERATE BY EXIT BY

1. NOISE

***

******

***

STATUS

****

********

****

EXIT

CINEMA

SELECT BY

OPERATE BY EXIT BY

TINT G DRIVE

COLOR B DRIVE

PICTURE R CUT.

BRIGHT G CUT.

DETAIL B CUT.

EXIT

***

******

*** ***

******

***

******

*** ***

******

***

******

*** ***

******

***

******

*** ***

******

***

******

*** ***

******

***

GAME

SELECT BY

OPERATE BY EXIT BY

TINT G DRIVE

COLOR B DRIVE

PICTURE R CUT.

BRIGHT G CUT.

DETAIL B CUT.

EXIT

***

******

*** ***

******

***

******

*** ***

******

***

******

*** ***

******

***

******

*** ***

******

***

******

*** ***

******

***

BRIGHT

***

******

***

******

*** *** ***

*** ****** ***

*** ***

BRIGHT EXIT BY

EXIT

SELECT BY

OPERATE BY EXIT BY

1. PICTURE

***

******

***

*****

**********

***** ****

********

****

EXIT

SELECT BY

OPERATE BY EXIT BY

1. OSD HP

***

******

***

EXIT

[DO NOT ADJUST]

[FIXED ON]

Press

VIDEO

STATUS

No.51866

V-T2122

(4) Setting method

1) UP / DOWN key of the MENU

Select the SETTING ITEM.

2) LEFT / RIGHT key of the MENU

Setting (adjust) the SETTING VALUE of the SETTING ITEM.

When the key is released the SETTING VALUE will be stored

(memorized).

3) EXIT key

Returns to the previous screen.

[NOTE] (PICTURE MODE ONLY)

When the INITIAL SETTING VALUE is turned to yellow, you can adjust the

values but you cannot adjust the values when it is turned to red.

(Because the signal conditions, etc. are not met.)

(5) Releasing SERVICE MENU

1) After returning to the SERVICE MENU upon completion of the setting

(adjustment) work, press the EXIT key again.

★The settings for LOW LIGHT and HIGH LIGHT are described in the WHITE

BALANCE page of ADJUSTMENT.

★The setting for VCO (CW) are described in the IF VCO page of ADJUSTMENT.

SELECT BY

OPERATE BY EXIT BY

1. NOISE

***

******

***

STATUS

****

********

****

EXIT

SOUND MODE

SELECT BY

OPERATE BY EXIT BY

EXIT

1. PICTURE

***

******

***

*****

**********

***** ****

********

****

PICTURE MODE

INITIAL

SETTING VALUE

↓(Adjust)

SETTING VALUE

SETTING

ITEM

SELECT BY

OPERATE BY EXIT BY

1. OSD HP

***

******

***

EXIT

OTHERS MODE

VIDEO STATUS MODE

CINEMA

SELECT BY

OPERATE BY EXIT BY

TINT G DRIVE

COLOR B DRIVE

PICTURE R CUT.

BRIGHT G CUT.

DETAIL B CUT.

EXIT

***

******

*** ***

******

***

******

*** ***

******

***

******

*** ***

******

***

******

*** ***

******

***

******

*** ***

******

***

GAME

SELECT BY

OPERATE BY EXIT BY

TINT G DRIVE

COLOR B DRIVE

PICTURE R CUT.

BRIGHT G CUT.

DETAIL B CUT.

EXIT

***

******

*** ***

******

***

******

*** ***

******

***

******

*** ***

******

***

******

*** ***

******

***

******

*** ***

******

***

Press

VIDEO

STATUS

Key

The letter of the selected

Items are displayed in yellow.

No.51866

V-T2122

INITIAL SETTING VALUE OF SERVICE MENU

1. Adjustment of the SERVICE MENU is made on the basis of the initial setting values; however, the new setting values

which set the screen in its optimum condition may differ from the initial setting.

2. Do not change the initial Setting Values of the Setting (Adjustment) items not listed In “ADJUSTMENT”.

"PICTURE MODE

#The four setting items in the video mode No.8 EXT PIC., No.9 EXT BRI., No.10 EXT COL. and No.11 EXT TINT are linked to the items in

the TV MODE No.1 PICTURE, No.2 BRIGHT, No.5 COL. NTSC and No.6 TINT, respectively. When the setting items in the TV mode are

adjusted, the values in the setting items in the video mode are revised automatically to the same values in the TV mode.(The initial setting

values given in ( ) are off-set values.)

#When the four items (No.8, 9, 10 and 11) are adjusted in the video mode, the setting values in each item are revised independently.

No. Setting item Variable range Initial setting value No. Setting item Variable range Initial setting value

1. PICTURE 0～127 65 31. C-TRAP 0 / 1 0

2. BRIGHT 0～127 64 32. C-TR. FO 0～32

3. COL. PALM 0～127 70 33. C-TRAP Q 0～30

4. COL. PALN 0～127 70 34. FIX B/W 0 / 1 0

5. COL. NTSC 0～127 80 35. APA P. FO 0～31

6. TINT 0～127 65 36. DC TRAN. 0～77

7. TV DTL 0～63 38 37. B. ST. SW 0～70

8. EXT PIC. ±25 (0) 38. B. ST. PO. 0 / 1 0

9. EXT BRI. ±25 (+5) 39. ABL GAIN 0～74

10. EXT COL. ±25 (0) 40. ABL PO 0～70

11. EXT TINT ±25 +1 41. HALF T. 0～21

12. EXT DTL 0～63 35 42. DRV G SW 0 / 1 0

13. P/N KILL 0 / 1 143. NT. COMB 0 / 1 1

14. Y S CONT 0～31 31 44. COIN DET 0～33

15. TV Y-DL 0～7145. NOISE L 0～33

16. EXT Y-DL 0～7246. VCD MODE 0 / 1 0

17. WPL SW 0 / 1 047. V AGC SP 0 / 1 0

18. Y GAMMA 0 / 1 048. H POS. 50 0～31 7

19. P/N G P 0 / 1 049. H BLK. 50 0～70

20. COL. L SW 0 / 1 150. V POS. 50 0～70

21. COL. LMT. 0～3151. V SIZE50 0～127 87

22. PN C. ATT 0～3152. V S CR50 0～127 28

23. OFST. SW 0 / 1 053. V LIN. 50 0～31 4

24. OFSET. B-Y 0～15 854. H POS. 60 0～31 12

25. OFSET. R-Y 0～15 855. H BLK. 60 0～70

26. C-TOF SW 0 / 1 156. V POS. 60 0～70

27. TV T FO 0～3157. V SIZE60 0～127 88

28. TV T Q 0～3058. V S CR60 0～127 48

29. EXT T FO 0～3059. V LIN. 60 0～31 4

30. EXT T Q 0～3060. RF AGC 0～255 160

No.51866

V-T2122

"SOUND MODE

No. Setting item Variable range Initial setting value

1. NOISE 0 / 1 1

2. IN LEVEL 0～63 20

3. FH MON. 0 / 1 0

4. ST VCO 0～63 25

5. PILOT 0 / 1 0

6. FILTER 0～63 30

7. LOW SEP. 0～63 22

8. HI SEP. 0～63 23

9. 5FH MON. 0 / 1 0

10. SAP VCO 0～63 26

11. IN GAIN 0 / 1 0

12. FIL. OFF ±10 0

"VIDEO STATUS MODE

Initial setting value

No.Setting (Adjustment) item Variable range CINEMA GAME

1. TINT ±20 00

2. COLOR ±20 -3 -3

3. PICTURE ±20 -10 -10

4. BRIGHT ±20 00

5. DETAIL ±15 0-5

6. G DRIVE -99～+50 -22 0

7. B DRIVE -99～+50 -54 0

8. R CUT. ±10 00

9. G CUT. ±10 00

10. B CUT ±10 00

Andere Handbücher für AV-T2122

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