Apex Digital PF2720 Manuel utilisateur

FILE NO. SM-CTV-O-056

COLOR TELEVISION

SERVICE MANUAL

MODEL NO.

PF2720/PF2730

PF3220/PF3230

CHASSIS NO. CH-16CD

Please read this manual carefully before service.

SERVICE MANUAL

Service Mode and Bus Data

1. How to Enter the Service Mode with the Remote Control

1) Decrease volume to 0.

2) Press the MUTE button on the remote control and VIDEO button on the TV at the same time.

3) Adjust the TV with the MENU SELECT buttons on the remote control.

4) Press the button on the remote control to quit the Service mode.

2. Bus Data

Symbol Adjustment Description

OP1 190 Option bit 1˄See “Option Set”˅OP2 15 Option bit 2˄See “Option Set”˅OP3 1Option bit 3˄See “Option Set”˅OP4 221 Option bit 4˄See “Option Set”˅OP5 140 Option bit 5˄See “Option Set”˅OP6 111 Option bit 6˄See “Option Set”˅OP7 191 Option bit 7˄See “Option Set”˅S0

OP8 101 Option bit 8˄See “Option Set”˅PAR Set to optimum Parallelogram correction

BOW Set to optimum Bow correction

HSH Set to optimum Horizontal shift

EWW Set to optimum East-west width adjustment

EWP Set to optimum East-west pincushion correction

UCR Set to optimum Upper corner correction

LCR Set to optimum Lower corner correction

EWT Set to optimum East-west Trapezoidal correction

VSL Set to optimum Half vertical output

VAM Set to optimum Vertical amplitude

SCL Set to optimum Vertical linearity

VSH Set to optimum Vertical shift

VOF Set to optimum Vertical position of character

CCV Set to optimum Vertical position of CCD

HOF Set to optimum Horizontal position of character

CCHF Set to optimum Horizontal position of CCD

VX 25

RED Set to optimum Red gun cutoff voltage

GRN Set to optimum Green gun cutoff voltage

WPR Set to optimum Red gun drive voltage

WPG Set to optimum Green gun drive voltage

WPB Set to optimum Blue gun drive voltage

(Continued)

SERVICE MANUAL

YDFN 7 Luminance delay

TOP Set to optimum Video automatic gain control

VOL 31 UOC volume control

IFFS 1 Picture intermediate frequency

HDOL 13 Cathode drive voltage

HD-B 3 Brightness of blue back

AGC 2 Automatic gain control velocity

VG2B 32

FEAT 57 See “Option Set”.

FEAT1 56 See “Option Set”.

TRE1 100 Treble Max.

TRE2 50 Treble Mid.

BAS1 60 Bass Max.

BAS2 30 Bass Mid.

1CON 80 Contrast in Normal mode

1BRI 50 Brightness in Normal mode

1COL 50 Color in Normal mode

1SHP 50 Sharpness in Normal mode

2CON 100 Contrast in Movie mode

2BRI 40 Brightness in Movie mode

2COL 60 Color in Movie mode

2SHP 60 Sharpness in Movie mode

3CON 100 Contrast in Sports mode

3BRI 60 Brightness in Sports mode

3COL 40 Color in Sports mode

3SHP 40 Sharpness in Sports mode

PP H 0

IFOF Set to optimum IF offset

VENH 1 Vertical enhancement

COR 3 Coring

VOLA 70 Volume 25

VOLB 80 Volume 50

VOLC 90 Volume 75

VOLD 100 Volume 100

WFRA 70 Woofer 25

WFRB 80 Woofer 50

WFRC 90 Woofer 75

WFRD 100 Woofer 100

SAGC 0 Sound AGC

LOUD 40 1KHz(or 2KHz) sound AGC

SCOT 107 AV output volume

(Continued)

SERVICE MANUAL

SCIN 61 AV input volume

FMIN 63 Sound frequency modulation

WOCF 15 Woofer Mid.

CON1 100 Contrast Max.

CON2 50 Contrast Min.

BRI1 Set to optimum Brightness Max.

BRI2 Set to optimum Brightness Min.

COL1 100 Color Max.

COL2 50 Color Min.

SHP1 80 Sharpness Max.

SAV

SHP2 40 Sharpness Min.

Notes:

ķĀ5āor Ā6āwill be displayed before the data depending on signal frequency (50Hz or 60Hz)

during geometric data adjustment.

ĸThe data sheet may differ dependent on different models.

ĹThe data sheet may differ dependent on different CRTs for the same model.

3. Option Set

Bit Item Description Default

0 TA1343N Sound processor TA1343N: 1ėYes, 0ėNo 0

1 MSP3440G MSP3440G: 1ėYes, 0ėNo 1

2 IDENT_TXT12 1ėTXT12 IDENT detection, 0ėSL IDENT detection 1

3 COMB_FILTER TC90A49P: 1ėYes, 0ėNo 1

4 OP_X_RAY X-Ray protection: 1ėYes, 0ėNo 1

5 UOC_SVM TDA9379-VM: 1ėYes, 0ėNo 1

6 TDA9859 Sound processing chip TDA9859: 1ėYes, 0ėNo 0

OP1

7 SOUND_CHIP Sound processing chip: 1ėYes, 0ėNo (PWM control) 1

0 TV_29_21 Definition of UOC pin: 1ė29”, 0ė21” 1

1 VCHIP V-chip: 1ėYes, 0ėNo 1

2 CCD Closed Caption: 1ėYes, 0ėNo 1

3SOUND_EFFE

Audio options: 1ėYes, 0ėNo 1

4OP-ZOOM-DE

LE-LINE

ZOOM detection˖1ėNo, 0ėYes 0

5 0

6 0

OP2

7 OP-LOGO User LOGO display: 1ėYes under no signal condition,

0ėNo

0 BLUE_BACK Blue back under no signal condition: 1ėYes, 0ėNo 1

1 VM_OSD 1ėDependent on OSD MENU, 0ėIndependent on

OSD

2 TILT Tilt: 1ėYes, 0ėNo 0

OP3

3WOOFER_ON

OFF

Super woofer: 1ėYes, 0ėNo 0

(Continued)

SERVICE MANUAL

4 WOOFER_VOL Super woofer volume control: 1ėYes, 0ėNo 0

5 0

6 0

7 OP-TIMER TIMER: 1ėYes, 0ėNo 0

0 ENGLISH English: 1ėYes, 0ėNo 1

1 PORTUGUESE Portuguese: 1ėYes, 0ėNo 0

2 FRENCH French: 1ėYes, 0ėNo 1

3 SPANISH Spanish: 1ėYes, 0ėNo 1

4MSP3440G

-AVC

Auto volume control: 1ėYes, 0ėNo 1

5MSP3440G-

MDB

MDB: 1ėYes, 0ėNo 0

6MSP3440G-

TONE

Five equalizer: 1ėYes, 0ėNo 1

OP4

7MSP3440G

_GAIN

Frequency gain enhancement: 1ė1KHz, 0ė2KHz 1

0 PAL_M_N PAL M /PAL N: 1ėYes, 0ėNo 0

1Power-on

degaussing

1ė4 seconds, 0ėEvery 0

2 AV_STEREO AV Stereo: 1ėYes, 0ėNo 1

316˖9 16 : 9: 1ėYes, 0ėNo 1

4 LOCK_MENU LOCK_MENU 1ėYes, 0ėNo 0

5 BSCREEN Black screen when changing channels: 1ėYes, 0ėNo

6 WOOFER_MAI

Woofer available on main channel1(343): 1ėYes, 0ėNo

OP5

7 CHANNELLAB

Channel label: 1ėYes, 0ėNo 1

0 FMWS FM-PLL window: 1ėLarge, 0ėSmall 1

1 FSL Vertical sync: 1ė60%, 0ėNoise detector 1

2 OSO Switch off: 1ėOverscan, 0ėUndefined 1

3 YPRPB YPbPr selection: 1ėYes, 0ėNo 1

4 VG2_MODE VG2 adjustment: 1ėUOC H, 0ėUOC I 0

5 SYNC_Y DVD sync separately: 1ėYes, 0ėNo 1

6 QSS 1ėQSS, 0ėFM 1

OP6

7 0

0 AV2 AV2: 1ėYes, 0ėNo 1

1 AV3 AV3: 1ėYes, 0ėNo 1

2 AV4 AV4: 1ėYes, 0ėNo 1

3 SVHS1 SVHS1: 1ėYes, 0ėNo 1

4 SVHS4 SVHS4: 1ėYes, 0ėNo 1

5 DVD DVD: 1ėYes, 0ėNo 1

OP7

6LAST_SOURC

Turn-on mode after power-on: 1 ėTV, 0 ėLast

program source

(Continued)

SERVICE MANUAL

7 STANDBY Standby mode after power-on: 1ėStandby, 0ėThe

same as last power-off mode

0 VM Velocity modulation: 1ėYes, 0ėNo 1

1 LOCK Lock used for identifying detection: 1ėYes, 0ėNo 0

2 IDENT_MODE Lock handle: 1ėTXT12 | Lock; 0ėTXT12 & Lock 0

3COLOR

MATRIX

Matrix: 1ėUSA; 0 ėJapan 0

4 FORF 0

5 FORS

F/S 00ėAUTO 60 01ė60 FORCED

10ėAUTO LAST 11ėAUTO 50 1

6 CHILD_LOCK Child lock: 1ėYes, 0ėNo 1

OP8

7 SPEAKER Speaker On/Off: 1ėYes, 0ėNo 0

0 BKS Black level stretch 1

1 0 0

2 0 0

3 DSK Skin tone correction 1

4 COR0 1

5 COR1

Dynamic coring: 00ėOff 11ėMax.

6 SVM0 0

FEA

7 SVM1

TDA9379 VM delay 00ė50 01ė70

10ė90 11ėSpare 0

0 0 0

1 0 0

2 VAM0 0

3 VAM1

TDA9379 VM amplitude: 00ėOFF 01ė0.8V

10ė1.2V 11ė1.8V 1

4 RPO0 1

5 RPO1

Over pulse/preset pulse 00(1:1) 01(1:1.25)

10(1:1.5) 11(1:1.8) 1

6 0 0

FEA

7 0 0

Notes:

ķThe option data in the above table may differ depending on models, UOC chips and CRTs

used.

ĸIt is required to check if the data comply with the function requirements of your TVs.

For example:

③For PF2720 and PF3220 models, OP1 is set to 158, OP7 to 175 and OP8 to 100 when using

TDA9375 or OP1 is set to 158, OP7 to 175 and OP8 to 100 when using TDA9379.

For PF2730 and PF3230 models, OP1 is set to 158, OP7 to 191 and OP8 to 101 when using

TDA9375 or OP1 is set to 190, OP7 to 191 and OP8 to 101 when using TDA9379.

Ce manuel convient aux modèles suivants

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