JVC AV 27D302 Manuel utilisateur

No.51788

Mar. 2001

AV-27D302

AV-27D202

AV-27D302/S

AV-27D302/R

AV-27D202/S

AV-27D202/R

SERVICE MANUAL

COLOR TELEVISION

BASIC CHASSIS

No.51788

V-27D302

V-27D202

MEMORY IC REPLACEMENT

1. Memory IC

This model uses a memory IC.

This memory IC stores data for proper operation of the 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 outlet.

(2) Replace the memory IC

Initial value must be entered into the new IC.

(3) Power on

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

(4) System constant check and setting

1) Press SLEEP TIMER key and, while the indication of “SLEEP TIMER 0

MIN.” is being displayed, press DISPLAY key and VIDEO STATUS key

on the remote control unit simultaneously.

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 UP/DOWN (ً/ٕ)

key and adjust the setting with the LEFT/RIGHT ( ) keys.

5) After adjusting, release the 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.

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.

SERVICE MENU

PICTURE SOUND

THEATER

LO W LIGHT HIGH LIGHT

RF AFC CHK

SELECT BY EXIT BY

OPERATE BY EXIT

Fig.1

SYSTEM CONSTANT

MODEL : **-

**-**-

**-*

*****

********

****

V-CHIP : YES

CAN V-CHIP : YES

***

******

****

*****

********

****-

***

******

****

SELECT BY EXIT BY

OPERATE BY EXIT

Fig.2

No.51788

V-27D302

V-27D202

TABLE 1 (System Constant setting)

Setting value

Setting item Setting content AV-27D302/R, /S AV-27D202/R, /S

MODEL AV-27D302 AV-27D202

V-CHIP YES YES

CAN V-CHIP YES YES

TABLE 2 (User setting value)

Setting item Setting value

1. Use remote controller keys

POWER

CHANNEL

CHANNEL PRESET

VOLUME

TV/VIDEO(INPUT)

CH 02

See OPERATING INSTRUCTIONS.

DISPLAY

SLEEP TIMER

VIDEO STATUS

HYPER SURROUND

OFF

STANDARD

OFF

2. Setting of MENU

TINT

COLOR

PICTURE

BRIGHT

DETAIL

CENTER

NOISE MUTING

SET VIDEO STATUS

ALL CENTER

BASS

TREBLE

BALANCE

MTS

TV SPEAKER

CENTER

STEREO

SET CLOCK

ON/OFF TIMER

LANGUAGE

CLOSED CAPTION

BACKGROUND

V2 COMPONENT IN

Unnecessary to set

ENGLISH

OFF

BLACK

AUTO TUNER SETUP

CHANNEL SUMMARY

V-CHIP

V-CHIP RATINGS

SET LOCK CODE

UNRATED

TUNER MODE : AIR

Unnecessary to set

OFF

ALL OFF

Unnecessary to set

VIEW

V-27D302

V-27D202

AV-27230 AV-20D202

YES NO

No. 51788

V-27D302

V-27D202

BASIC OPERATION OF SERVICE MENU

1. TOOL OF SERVICE MENU OPERATION

Operate the SERVICE MENU with the REMOTE CONTROL UNIT.

2. SERVICE MENU ITEMS

In general, basic setting (adjustments) items or verifications are performed in the SERVICE MENU.

zPICTURE 㨯㨯㨯㨯㨯㨯㨯㨯㨯㨯㨯㨯㨯㨯㨯㨯㨯㨯㨯㨯 This sets the setting values (adjustment values) of the VIDEO/CHROMA and DEFLECTION circuits.

zSOUND 㨯㨯㨯㨯㨯㨯㨯㨯㨯㨯㨯㨯㨯㨯㨯㨯㨯㨯㨯㨯㨯 This sets the setting values (adjustment values) of the AUDIO circuit.

zTHEATER 㨯㨯㨯㨯㨯㨯㨯㨯㨯㨯㨯㨯㨯㨯㨯㨯㨯㨯㨯 This is used when the THEATER MODE is adjusted.

zLOW LIGHT㨯㨯㨯㨯㨯㨯㨯㨯㨯㨯㨯㨯㨯㨯㨯㨯㨯㨯 This sets the setting values (adjustment values) of the WHITE BALANCE circuit.

zHIGH LIGHT 㨯㨯㨯㨯㨯㨯㨯㨯㨯㨯㨯㨯㨯㨯㨯㨯㨯 This sets the setting values (adjustment values) of the WHITE BALANCE circuit.

zRF AFC CHK㨯㨯㨯㨯㨯㨯㨯㨯㨯㨯㨯㨯㨯㨯㨯㨯㨯 This is used when the IF VCO is adjusted. [Do not adjust]

3. Basic Operations of the SERVICE MENU

(1) How to enter the SERVICE MENU.

Press SLEEP TIMER key and, while the indication of “SLEEP TIMER 0 MIN.” is being displayed, press DISPLAY key and VIDEO

STATUS key on the remote control unit simultaneously to enter the SERVICE MENU screen Ԙshown in the next figure page.

(2) SERVICE MENU screen selection

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

٨PICTURE ٨SOUND

٨THEATER

٨LOW LIGHT ٨HIGH LIGHT

٨RF AFC CHK

(3) Enter the any setting ( adjustment ) mode

zPICTURE and SOUND mode

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

screen ԙwill be displayed as shown in figure page later.

2) Then the UP / DOWN(ً/ٕ) key is pressed, the PICTURE mode screen Ԛor the SOUND mode screen ԛis displayed, and the

PICTURE or SOUND setting can be performed.

zTHEATER, LOW LIGHT, HIGH LIGHT and RF AFC CHK mode

1) If select any of THEATER / LOW LIGHT / HIGH LIGHT / RF AFC CHK items, and the LEFT / RIGHT( ) key is pressed from

SERVICE MENU ( MAIN MENU ), the screens ԜԝԞԟ

will be displayed as shown in figure page later.

2) Then the settings or verifications can be performed.

No. 51788

V-27D302

V-27D202

SELECT BY EXIT BY

EXIT

BRIGHT

EXIT BY

BRIGHT

EXIT

***

******

***

******

*** ***

******

*** ***

******

***

SELECT BY

O PERATE BY

EXIT BY

1.BRIGHT

EXIT

STATUS

***

******

***

****

********

*****

****

******

***

EXIT BY

HIGH LIGHT

EXIT

***

******

***

SELECT BY

O PERATE BY

EXIT BY

RF AFC

FINE

STATUS

EXIT

ԘԘ

ԘSERVICE MENU (MAIN MENU) ԙ

ԙԙ

ԙSCREEN

ԞԞ

ԞHIGH LIGHTMODE

***

******

***

ԜԜ

ԜTHEATER MODE(1/2)

SELECT BY

O PERATE BY

EXIT BY

TINT

COLOR

PICTURE

BRIGHT

DETAIL

EXIT

***

******

***

******

***

******

***

******

***

******

***

ԟԟ

ԟRF AFC CHK MODE [DO NOT ADJUST]

****

********

*****

****

******

***

ԝԝ

ԝLO W LIGHTMODE

ԚԚ

ԚPICTURE MODE

***

******

***

ԛԛ

ԛSOUND MODE

SELECT BY

O PERATE BY

EXIT BY

1.IN LEVEL

EXIT

STATUS

***

******

***

****

********

*****

****

******

***

SERVICE MENU

PICTURE SOUND

THEATER

LO W LIGHT HIGH LIGHT

RF AFC CHK

SELECT BY EXIT BY

OPERATE BY IT

EXIT

TOO HIGH TOO LO WGOOD

R CUT ***

******

***

G CUT ***

******

***

B CUT

R DRIVE

B DRIVE

DC REST

BLK ST

***

******

***

******

***

******

***

******

***

******

***

GMM PNT ***

******

***

1/2

SELECT BY

O PERATE BY

EXIT BY

CD MAT

RY GAIN

EXIT

GY PHAS *

CORING *

CM P CD

CM P RY

CM P GY *

2/2

CM P CO R *

THEATER MODE

(

2/2

)

No. 51788

V-27D302

V-27D202

(4) Setting method

1) UP / DOWN (ً/ٕ)key.

Select the SETTING ITEM.

2) LEFT / RIGHT( ) key.

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

When the key is released the SETTING VALUE will be stored

(memorized).

3) EXIT key

Return to the previous screen.

(5) Releasing SERVICE MENU

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

(adjustment) work, press the EXIT key again.

ڎThe settings for LOW LIGHT and HIGH LIGHT are described in the WHITE

BALANCE page of ADJUSTMENT.

SELECT BY

OPERATE BY

EXIT BY

1.IN LEVEL

STATUS

EXIT

***

******

***

********

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

********

SOUND MODE

SELECT BY

OPERATE BY

EXIT BY

1.BRIGHT

EXIT

STATUS

***

******

***

********

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

********

PICTURE MODE

SETTING VALUE

SETTING

ITEM

SELECT BY

O PERATE BY

EXIT BY

CD MAT

RY GAIN

EXIT

GY PHAS *

CORING *

CM P CD

CM P RY

CM P GY *

2/2

CM P COR *

THEATER MODE(2/2)

SELECT BY

O PERATE BY

EXIT BY

TINT

COLOR

PICTURE

BRIGHT

DETAIL

EXIT

****

***

****

***

****

***

****

***

****

***

R CUT **

****

***

G CUT **

****

***

B CUT

R DRIVE

B DRIVE

DC REST

BLK ST

****

***

****

***

****

***

****

***

****

***

GMM PNT **

****

***

1/2

THEATER MODE(1/2)

The letter of the selected

Items are displayed in yellow.

No. 51788

V-27D302

V-27D202

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

zThe 5 setting items in the video mode No.6 EXT BRI, No.7 EXT PICT, No.8 EXT CLR, No.9 EXT TINT and No.10 EXT DTL are linked to the

items in the TV MODE No.1 BRIGHT, No.2 PICTURE, No.3 COLOR, No.4 TINT and No.5 TV DTL 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 parenthesis are offset values.)

zWhen the 5 items (No.6, 7, 8, 9 and 10) are adjusted in the video mode, the setting values in each item are changed independently.

Initial setting value

No. Setting (Adjustment) items Variable range

AV-27D302 /S

AV-27D202 /S

AV-27D302 /R

AV-27D202 /R

1. BRIGHT 000㨪127 064 064

2. PICTURE 000㨪127 100 100

3. COLOR 000㨪127 055 055

4. TINT 000㨪127 087 087

5. TV DTL 000㨪63 050 050

6. EXT BRI. r025 r000 r000

7. EXT PICT. r025 +002 +002

8. EXT CLR r025 r000 r000

9. EXT TINT r025 -005 -005

10. EXT DTL 000㨪063 050 050

11. CMP BRI r025 -001 -001

12. CMP PICT r025 r000 r000

13. CMP CLR 000㨪127 072 072

14. CMP TINT 000㨪127 037 037

15. CMP DTL 000㨪063 050 050

16. CMP R CT r025 +008 +008

17. CMP G CT r025 r000 r000

18. CMP B CT r025 +008 +008

19. CMP R DR r025 r000 r000

20. CMP B DR r025 -002 -002

21. WPL 000 / 001 001 001

22. C TRAP 000 / 001 000 000

23. CORING 000 / 001 001 001

24. CMP CORI 000 / 001 001 001

25. TV SHAP 000 / 001 001 001

26. EXT SHAP 000 / 001 001 001

27. CMP SHAP 000 / 001 001 001

28. RGB CONT 000㨪063 016 016

29. TV ID S 000 / 001 000 000

30. EXT ID S 000 / 001 000 000

No. 51788

V-27D302

V-27D202

Initial setting value

No. Setting (Adjustment) items Variable range

AV-27D302 /S

AV-27D202 /S

AV-27D302 /R

AV-27D202 /R

31. F ID 000 / 001 000 000

32. Y MUTE 000 / 001 000 000

33. SUB CONT 000㨪015 008 008

34. R Y GAIN 000 / 001 001 001

35. CMP R Y 000 / 001 001 001

36. G Y PHAS 000 / 001 001 001

37. CMP G Y 000 / 001 001 001

38. CD MATRI 000㨪003 003 003

39. CMP CD M 000㨪003 001 001

40. BLK ST 000㨪003 001 001

41. DC REST 000㨪003 001 001

42. CLR GMM 000 / 001 000 000

43. UV / CBCR 000 / 001 000 000

44. AT FLESH 000 / 001 000 000

45. ABL GAIN 000㨪003 000 000

46. ABL ST P 000㨪003 003 003

47. RGB ABCL 000 / 001 001 001

48. TV B/T 000 / 001 001 001

49. EXT B/T 000 / 001 000 000

50. GMM PNT 000㨪003 003 003

51. BUZZ 000 / 001 000 000

52. RF AGC 000㨪063 045 045

53. AFT SENS 000 / 001 001 001

54. R/G DRV 000 / 001 001 001

55. BLK SW 000 / 001 000 000

56. V S COR 000㨪015 011 011

57. V LIN 000㨪015 012 012

58. V SIZE 000㨪127 037 037

59. V AGC 000 / 001 000 000

60. TV AFC 000㨪003 001 001

61. EXT AFC 000㨪003 002 002

62. V POSI 000㨪007 000 000

63. H POSI 000㨪031 015 015

64. TV V FR 000㨪003 000 000

65. EXT V FR 000㨪003 003 003

66. STND BY 000 / 001 000 000

67. V RMP RE 000 / 001 001 001

68. V 48HZ 000 / 001 000 000

69. V EHT 000㨪007 000 000

70. H EHT 000㨪007 000 000

No. 51788

V-27D302

V-27D202

Initial setting value

No. Setting (Adjustment) items Variable range

AV-27D302 /S

AV-27D202 /S

AV-27D302 /R

AV-27D202 /R

71. V BLK L 000㨪003 000 000

72. V BLK U 000㨪003 001 001

73. CCD IN 000 / 001 000 000

74. H BLK 000 / 001 000 000

75. OVER MD 000 / 001 001 001

76. APACON L 000 / 001 001 001

77. RF S/N T 000 / 001 000 000

78. EX S/N T 000 / 001 000 000

79. R S/N V1 000㨪063 000 000

80. R S/N V2 000㨪063 000 000

81. R S/N V3 000㨪063 000 000

82. R S/N V4 000㨪063 000 000

83. E S/N V1 000㨪063 000 000

84. E S/N V2 000㨪063 000 000

85. E S/N V3 000㨪063 000 000

86. E S/N V4 000㨪063 000 000

87. COR LEV 000㨪003 000 000

88. VNR CHK 000㨪255 000 000

89. VC SN TM 000㨪255 000 000

90. VC SN SP 000㨪255 000 000

91. CH MUTE 000 / 001 000 000

92. OSD HP 000㨪031 018 018

93. OSD VP 000㨪031 008 008

94. FM TRAP 000 / 001 000 000

95. OSC SEL 000 / 001 001 001

96. SD SEL 000 / 001 001 001

97. VF LK EX 000 / 001 000 000

98. F LOCK 000㨪002 002 002

99. AFC HIGH 000㨪064 031 031

SOUND MODE

Initial setting value

No. Setting (Adjustment) item Variable range AV-27D302 /S

AV-27D202 /S

AV-27D302 /R

AV-27D202 /R

1. IN LEVEL 000㨪063 024 024

2. FH MON 000 / 001 000 000

3. ST VCO 000㨪063 032 032

4. PILOT 000 / 001 000 000

5. FILTER 000㨪063 027 027

6. LOW SEP 000㨪063 014 014

7. HI SEP 000㨪063 021 021

8. 5FH MON 000 / 001 000 000

9. SAP VCO 000㨪063 034 034

10. BBE BASS r010 -001 -001

11. BBE TRE r010 -001 -001

No. 51788

V-27D302

V-27D202

THEATER MODE

Initial setting value

Setting (Adjustment) item Variable range AV-27D302 /S

AV-27D202 /S

AV-27D302 /R

AV-27D202 /R

TINT -20㨪+20 -06 -06

COLOR -20㨪+20 -05 -05

PICTURE -20㨪+20 -08 -08

BRIGHT -20㨪+20 r00 r00

DETAIL -20㨪+20 +03 +03

R CUT -20㨪+20 r00 r00

G CUT -20㨪+20 r00 r00

B CUT -20㨪+20 r00 r00

R DRIVE -99㨪+99 +06 +06

B DRIVE -99㨪+99 -18 -18

DC REST 0㨪3+01 +01

BLK ST 0㨪3r00 r00

GMM PNT 0㨪3+01 +01

CD MAT 0㨪3+01 +01

RY GAIN 0㨪1+01 +01

GY PHAS 0㨪1r00 r00

CORING 0㨪1+01 +01

CMP CD 0㨪3+01 +01

CMP RY 0㨪1+01 +01

CMP GY 0㨪1r00 r00

CMP COR 0㨪1+01 +01

LOW LIGHT MODE

Setting (Adjustment) item Variable range Initial setting value

R CUTOFF

G CUTOFF

B CUTOFF

0㨪255

HIGH LIGHT MODE

Setting (Adjustment) item Variable range Initial setting value

G DRIVE

B DRIVE

0㨪255

RF AFC CHECK MODE

Setting (Adjustment) item Variable range Initial setting value

RF AFC

FINE

ON / OFF

FIXED

DO NOT

ADJUST

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