Sharp 21JF2 Service manual

21JF2-RU/GA/SA/SF/SS

SERVICE MANUAL

No. S95O521JF2-RU

COLOUR TELEVISION

Chassis No. GA-4M

21JF2-RU 21JF2-GA 21JF2-SA 21JF2-SF

MODELS

In the interests of user-safety (Required by safety regulations in some countries) the set should be restored to its original condition and only parts identical to those specified should be used.

21JF2-SS

FEATURES

Multi 18 Systems

Full Auto Channel Preset and Auto Channel Skip

100-CH Program Memory

CATV (Hyper Band) Ready <Used Frequency Synthesizer Tuner>

Black Stretch Circuit

On Timer / Off Timer / Reminder Timer

Blue Back Function

Front AV IN & Rear AV IN / OUT Terminals

Front Headphone Jack

Aperture Control Circuit

Auto Fine Tuning

NTSC Colour Comb Filter (AV THRU)

High Contrast Picture

Hotel Mode

White Temperature Select

ععMulti Languages OSD

(ENG / CHI / FRE / MAL / ARA / RUS) for Model 21JF2-SF / SS Only. (ENG / CHI / FRE / MAL / ARA) for Model 21JF2-GA / SA Only. (ENG / RUS) for Model 21JF2-RU Only. MONO

CONTENTS

CHAPTER 1. SPECIFICATIONS

[1] SPECIFICATIONS ......................................... 1-1

CHAPTER 2. IMPORTANT SERVICE NOTES

[1] IMPORTANT SERVICE NOTES .................... 2-1

CHAPTER 3. ADJUSTMENT PRECAUTIONS

[1] ADJUSTMENT PRECAUTIONS .................... 3-1

[2] ADJUSTMENT ............................................. 3-14

CHAPTER 4. MEMORY MAP

[1] MEMORY MAP .............................................. 4-1

CHAPTER 5. TROUBLE SHOOTING FLOWCHART

[1] TROUBLE SHOOTING FLOWCHART .......... 5-1

CHAPTER 6. SOLID STATE DEVICE BASE DIAGRAM

[1] SOLID STATE DEVICE BASE DIAGRAM........ 6-1

CHAPTER 7. CHASSIS LAYOUT

[1] CHASSIS LAYOUT ........................................ 7-1

[2] BLOCK DIAGRAM: HEADPHONE UNIT........8-1

[3] BLOCK DIAGRAM: MAIN UNIT ....................8-2

CHAPTER 9. DESCRIPTION OF SCHEMATIC DIAGRAM

[1] DESCRIPTION OF SCHEMATIC DIA-

GRAM............................................................9-1

CHAPTER 10. WAVEFORMS

[1] WAVEFORMS .............................................10-1

CHAPTER 11. SCHEMATIC DIAGRAM

[1] SCHEMATIC DIAGRAM: MAIN UNIT..........11-1

[2] SCHEMATIC DIAGRAM: CRT UNIT ........... 11-7

[3] SCHEMATIC DIAGRAM: HEADPHONE

UNIT ............................................................ 11-7

CHAPTER 12. PRINTED WIRING BOARD ASSEMBLIES

[1] PWB-B: CRT UNIT ......................................12-1

[2] PWB-C: HEADPHONE UNIT ......................12-1

[3] PWB-A: MAIN UNIT ....................................12-2

CHAPTER 8. BLOCK DIAGRAM

[1] BLOCK DIAGRAM: CRT UNIT ...................... 8-1

WARNING

The chassis in this receiver is partially hot. Use an isolation transformer between the line cord plug and power receptacle, when servicing this chassis. To prevent electric shock, do not remove cover. No user - serviceable parts inside. Refer servicing to qualified service personnel.

SHARP CORPORATION

Parts Guide

21JF2-RU/GA/SA/SF/SS

CHAPTER 1. SPECIFICATIONS

[1] SPECIFICATIONS

Convergence ................................................................................................................ Self Convergence System

...............................................................................................................................

Focus

Sweep Deflection ..................................................................................................................................... Magnetic

Intermediate Frequencies

Picture IF Carrier ................................................................................................................................. 38.9MHz

Sound IF Carrier Frequency

6.5MHz ............................................................................................................................................. 32.4MHz

6.0MHz ............................................................................................................................................. 32.9MHz

5.5MHz ............................................................................................................................................. 33.4MHz

Colour Sub-Carrier Frequency........................................................................................................... 34.47MHz

Power Input ..................................................................................................................... 110 ~ 240V AC 50/60 Hz

Power Consumption Audio Power Output Rating

Speaker

Size

..............................................................................................................................

Voice Coil Impedance

........................................................................................................................................

............................................................................................................. 2.5W(rms) x 2

.............................................................................................................

Service Manual

UNI-BI Focusing

95W

9 x 5 cm Elliptic (2 pcs)

16 ohms at 400 Hz

Aerial Input Impedance

VHF/UHF .......................................................................................................................... 75 ohms Unbalanced

Receiving System .................................................................................

Receiving Channel

VHF-Channels ......................................................................................... E2(48.25MHz) thru E12(224.25MHz)

UHF-Channels ..................................................................................... E21(471.25MHz) thru E69(855.25MHz)

Dimensions

Cabinet material ..................................................................................................................................... All Plastics

.....................................................................................................................................

PAL I, B/G, D/K & SECAM B/G, D/K, -K1

C1(49.75MHz) thru C12(216.25 MHz)

S1(105.25MHz) thru S41(463.25HMz)

C13(471.25MHz) thru C57(863.25MHz)

Width: 605mm

Height: 468mm

Depth: 482mm

Weight(approx): 21.7 kg

Specifications are subject to change without prior notice

1 – 1

21JF2-RU/GA/SA/SF/SS

CHAPTER 2. IMPORTANT SERVICE NOTES

Service Manual

[1] IMPORTANT SERVICE NOTES

Maintenance and repair of this receiver should be done by qualified service personnel only.

1. SERVICE OF HIGH VOLTAGE SYSTEM AND PICTURE TUBE

When servicing the high voltage system, remove static charge from it by connecting a 10K ohm resistor in series with an insulated wire (such as a test probe) between picture tube dag and 2nd anode lead. (AC line cord should be disconnected from AC outlet.)

1) Picture tube in this receiver employs integral implosion protection.

2) Replace with the same type number of picture tube for continued safety.

3) Do not lift picture tube by the neck.

4) Handle the picture tube only when wearing shatterproof goggles and after discharging the high voltage completely.

2. X-RAY

This receiver is designed so that any X-Ray radiation is kept to an absolute minimum. Since certain malfunctions or servicing may produce potentially hazardous radiation with prolonged exposure at close range, the following precautions should be observed:

1) When repairing the circuit, please make sure do not increase the high voltage of the set to more than 30.0kV (at beam 0µA).

2) To keep the set in a normal operation, please make sure it’s function at 26.5kV ± 0.5kV (at beam 1000µA). The set has been factory - adjusted to the above-mentioned high voltage.

*If there is a possibility that the high voltage fluctuates as a result of the repairs, never forget to check for such high voltage after the work.

3) Do not substitute a picture tube with unauthorizerd types and/or brands which may cause excessive X-ray radiation.

3. BEFORE RETURNING THE RECEIVER

Before returning the receiver to the user, perform the following safety checks.

1) Inspect all lead dress to make certain that leads are not pinched or that hardware is not lodged between the chassis and other metal parts in the receiver.

2) Inspect all protective devices such as non-metal control knobs, insulating materials, cabinet backs, adjustment and compartment covers or shields, isolation resistor-capacity networks, mechanical insulators etc.

2 – 1

21JF2-RU/GA/SA/SF/SS

CHAPTER 3. ADJUSTMENT PRECAUTIONS

Service Manual

[1] ADJUSTMENT PRECAUTIONS

This model's setting are adjusted in two different ways: through the I2C bus control and in the conventional analog manner. The adjustments via the I2C bus control include preset-only items and variable data.

CAUTION: Make sure TV set in "Normal condition" before switch to Service Mode for adjustment.

Setting the service mode by the microprocessor.

i) Press SERVICE key on the remote controller to set the TV set to SERVICE mode position, and the microprocessor is in input

mode. (Adjustment through the I2C bus control).

ii) Press the MENU key on the remote controller to get ready to select the mode (Adjustment mode, Setting mode, Check mode and Option

mode) one by one.

iii)

Press the CH DOWN / UP key on the remote controller to select the item in Adjustment mode, Setting mode or Option mode.

iv) Using the VOLUME UP/ DOWN key on the remote controller, the data can be modified. Please wait approximately 200 msec for data storage

in EEPROM before select to another mode.

v) In Check mode the data cannot be changed.

vi) Press the SERVICE key again, it will switch to the NORMAL mode position, and the microprocessor is out of the SERVICE mode.

Factory Presetting.

i) Power ON the TV set, press the SERVICE key on the remote controller, then press both the CH UP and VOL UP button on the set

simultaniously for 5secs. Initial values are automatically preset, only when a new EEPROM is used.

ii) The initial data are preset as listed in page 3-7 to 3-13.

iii) Make sure the data need modification or not (Initial data).

Precaution: If haven't done this initialization, it may possibly generate excessive Beam current.

For reference please check with memory map RH-IXB226WJZZ. (See Page 4-1 ~ 4-16)

3 – 1

21JF2-RU/GA/SA/SF/SS

1. ADJUSTMENT ITEM

***Below are the adjustment items that should be done, PLS FOLLOW THE PROCEDURE. Otherwise some adjustment items will not be accurate.

NO *** ADJUSTMENT ITEM EFFECTIVE MODEL REVISION

1BUS SET UP 2 OPTION SET UP 3H-VCO 4VIF-VCO 5 S-TRAP fo 6RF-AGC 7 PURITY ADJ 8 CONVERGENCE ADJ

9 FOCUS ADJ 10 V-SHIFT (50 Hz) 11 H-SHIFT (50 Hz) 12 V-SIZE (50 Hz) 13 SCREEN 14 WHITE BALANCE 15 SUB-BRIGHTNESS 16 SUB-CONTRAST 17 SUB-TINT 18 SUB-COLOR 19 SECAM-OFFSET 20 SIF VCO ADJ 21 BEAM CURRENT CHECK 22 BEAM PROTECTOR CHECK 23 HV PROTECTOR CHECK 24 OTHER PROTECTOR CHECK 25 AV OUT CHECK 26 AV IN CHECK 27 CONTRAST CONTROL CHECK 28 COLOR CONTROL CHECK 29 BRIGHTNESS CONTROL CHECK 30 TINT CONTROL CHECK 31 SHARPNESS CONTROL CHECK 32 CH DISPLAY COLOR CHECK 33 NORMAL DISPLAY CHECK 34 WHITE TEMP CONTROL CHECK 35 COLOR SYSTEM CHECK 36 SOUND SYSTEM CHECK 37 NOISE MUTE CHECK 38 OSD LANGUAGE QUANTITY CHECK 39 HEAD PHONE CHECK 40 SHOCK TEST CHECK

41 ROM CORRECTION CHECK

ALL MODELS

3 – 2

21JF2-RU/GA/SA/SF/SS

2. USER DATA IN SERVICE MODE

1) While SERVICE mode ON, EEPROM DATA will switch to the service data. Also, once SERVICE mode OFF, EEPROM will switch back to previous USER DATA.

2) In the service mode, the user data establish as below,

USER DATA

CONTRAST MAX (60)

COLOUR CENT (0)

BRIGHTNESS CENT (0)

TINT CENT (0) SHARPNESS CENT (0) WHITE TEMP STANDARD

S-VOLUME MIN

BLUE BACK OFF

C SYSTEM AUTO S SYSTEM *1

*1: For each CH, data is same as before switch to Service mode.

The flow of Mode list as following,

* Direct Key-in Mode for Service Items in Service Mode

RC CODE (HEX) R/C KEY NAME SERVICE-ITEM

80 POS 1 R-C UP (IN SERVICE MODE V00) 40 POS 2 G-C UP (IN SERVICE MODE V00) C0 POS 3 B-C UP (IN SERVICE MODE V00) 20 POS 4 R-C DOWN (IN SERVICE MODE V00) A0 POS 5 G-C DOWN (IN SERVICE MODE V00) 60 POS 6 B-C DOWN (IN SERVICE MODE V00) E0 POS 7 R-D UP (IN SERVICE MODE V00) 10 POS 8 B-D UP (IN SERVICE MODE V00) 50 POS 0 B-D DOWN (IN SERVICE MODE V00) E4 FLASHBACK R-D DOWN (IN SERVICE MODE V00) E4 FLASHBACK Y-MUTE (BESIDES OF SERVICE MODE V00) 75 WHITE TEMP UP RF-AGC (V01) F5 WHITE TEMP DOWN VIF-VC0 (V02) C2 TUNE DOWN H-VCO (V03) 8D SHARPNESS DOWN SUB-CON (V04) D6 BALANCE LEFT SUB-COL (V05) 0D SHARPNESS UP SUB-BRIGHT (V06) 36 BALANCE RIGHT SUB-TINT (V07) 46 TREBLE UP SUB-SHP (V08) C6 TREBLE DOWN SUB-COL-YUV (V09) 26 BASS UP SUB-TINT-YUV (V10) 24 COLOUR UP V-SIZE (V11), V-SIZE60 (V17) 54 BRIGHTNESS DOWN V-SHIFT (V12), V-SHIFT60 (V18) 74 TINT DOWN H-SHIFT (V13), H-SHIFT60 (V19) 66 SURROUND UP SCM-BR (V14) E6 SURROUND DOWN SCM-BB (V15) C4 CONTRAST DOWN SUB-VOL (V16)

4C PICTURE S-TRAP-BG (V20) CC HOLD S-TRAP-I (V21) 2C TEXT S-TRAP-DK (V22) AC CANCEL S-TRAP-M (V23) EC SIZE S-TRAP-574 (V24)

80 POS 1 R-C UP YUV (IN SERVICE MODE V25)

40 POS 2 G-C UP YUV (IN SERVICE MODE V25) C0 POS 3 B-C UP YUV (IN SERVICE MODE V25)

20 POS 4 R-C DOWN YUV (IN SERVICE MODE V25)

A0 POS 5 G-C DOWN YUV (IN SERVICE MODE V25)

60 POS 6 B-C DOWN YUV (IN SERVICE MODE V25)

E0 POS 7 R-D UP YUV (IN SERVICE MODE V25)

10 POS 8 B-D UP YUV (IN SERVICE MODE V25)

50 POS 0 B-D DOWN YUV (IN SERVICE MODE V25)

3 – 3

RC CODE (HEX) R/C KEY NAME SERVICE-ITEM

E4 FLASHBACK R-D DOWN YUV (IN SERVICE MODE V25) C1 AUTO ADJ FOR V01, V02, V03, V20, V21, V22, V23, V24

CA T-SET

81 SERVICE MODE

1) Please set the MCL to MCL1 as below:

2) After set the MCL, please set the INITIAL SETTING for each models.

INITIAL 3 : For Singapore and Africa ( All Channel Sound System are set to B/G )

INITIAL 4 : For Middle-East ( All Channel Sound System are set to B/G )

INITIAL 5 : For Russia ( All Channel Sound System are set to D/K )

MCL1 (HEX AE)

CH-No Fv (MHz) Sound Sys

0 1 48.25 B/G 2 62.25 B/G 3 77.25 D/K 4 175.25 B/G 5 182.25 B/G 6 183.25 D/K 7 191.25 D/K 8 196.25 B/G

9 199.25 M 10 210.25 B/G 11 224.25 B/G 12 471.25 B/G 13 487.25 I 14 503.25 B/G 15 575.25 B/G 16 583.25 B/G 17 599.25 B/G 18 621.25 M 19 639.25 D/K 20 703.25 B/G 21 735.25 I 22 767.25 B/G 23 815.25 B/G 24 855.25 I 25 855.25 B/G 26 55.25 M 27 83.25 M 28 183.25 M 29 193.25 M 30 217.25 M 31 471.25 M 32 477.25 M 33 693.25 M 34 885.25 M 35 112.25 B/G 36 168.25 B/G 37 38 294.25 B/G 39 463.25 B/G 40 41 647.25 B/G 42 663.25 B/G 43 679.25 B/G 44 174.95 B/G 45 175.55 B/G 46 47 48 49

21JF2-RU/GA/SA/SF/SS

3 – 4

21JF2-RU/GA/SA/SF/SS

MCL1 (HEX AE)

CH-No Fv (MHz) Sound Sys

50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70

NOTE: PLL DATA OF ABOVE FREQ SHOULD TAKE THE ACCOUNT OF PIF SETTING IN SERVICE OPTION O04 (VIF) BEFORE STORING INTO

EEPROM.

3 – 5

3. SHIPPING SETTING & CHECKING

(1) The following default data has been factory-set for the E2PROM follow by INITIAL DATA selected.

21JF2-RU/GA/SA/SF/SS

ITEMS DATA SETTING

LAST POWER ON LAST TV/AV MODE TV MODE LAST POSITION CH 1 FLASHBACK CHANNEL CH 1 1/2 DIGIT ENTRY 2 DIGIT ENTRY VOLUME 0 (Min) BLUE BACK OFF OFF TIMER --:-ON TIMER --:-ON TIMER POSITION -ON TIMER VOLUME -REMINDER --:-AFT ALL CH ON COLOR SYSTEM ALL CH AUTO SKIP ALL CH OFF CONTRAST 60 COLOR 0 BRIGHTNESS 0 TINT 0 SHARPNESS 0 WHITE TEMP 0

(Reference: Geomagnetism Adjustment)

MODEL MAGNETIC FIELD(V, H) nT BACKGROUND LANG. S-SYS LANG QTY

SINGAPORE -10000 40000 12300°K ENGLISH B/G 5 AFRICA -10000 40000 12300°K ENGLISH B/G 5 MID-EAST 30000 20000 18000°KARABICB/G6 RUSSIA 45000 20000 7500°K RUSSIAN D/K 2

INITIAL LANGUAGE SOUND SYSTEM

1 CHINESE D/K 2 CHINESE I 3 ENGLISH B/G 4 ARABIC B/G 5 RUSSIAN D/K 6 MALAY B/G 7 FRENCH D/K

*NOTE FOR OSD TYPE:

2: ENGLISH/RUSSIAN 5: ENGLISH/CHINESE/FRENCH/ARABIC/MALAY 6: ENGLISH/CHINESE/FRENCH/ARABIC/MALAY/RUSSIAN

3 – 6

21JF2-RU/GA/SA/SF/SS

**AFTER INITIALIZED THE EEPROM (REFER TO FACTORY PRESETTING), READ DATA FROM EEPROM ADDRESS 00H ~ 03H, AND COMPARE TO THE LIST BELOW, IF DIFFERENT, INITIALIZE THE EEPROM.

ADDRESS DATA ADDRESS DATA

00H: 7BH 02H: 72H 01H: 72H 03H: 76H

*** There are four stages of service mode data. First stage data from V00 ~ V31 (Adjustment Mode).

To go into second stage of service mode data, press MENU key. Second stage data from F01 ~ F142 (Setting Mode).

To go into third stage of service mode data, press MENU key. Third stage data is Check Mode.

To go into fourth stage of service mode data, press MENU key. Fourth stage data from O01 ~ O31 (Option Mode).

ADJUSTMENT MODE (FIRST STAGE)

EEPROM ITEMS OSD DATA LENGTH INITIAL DATA FIX/ADJ/AUTO REMARK

R-DRIVE V00 0~127 63 ADJ PLS REFER TO B-DRIVE V00 0~127 63 ADJ ADJ ITEM FOR R-CUT V00 0~255 127 ADJ SCREEN AND G-CUT V00 0~255 127 ADJ WHITE BALANCE B-CUT V00 0~255 127 ADJ RF-AGC V01 0~127 50 AUTO VIF-VCO V02 0~63 31 AUTO H-VCO V03 0~7 3 AUTO SUB-CONTRAST V04 0~127 100 ADJ SUB-COLOR V05 0~127 63 ADJ SUB-BRIGHT V06 0~255 127 ADJ SUB-TINT V07 0~127 63 ADJ SUB-SHARPNESS V08 0~63 43 *FIX BUS SETUP SUB-COLOR -YUV V09 0~127 90 FIX SUB-TINT-YUV V10 0~127 63 FIX V-SIZE 50 Hz V11 0~63 38 ADJ V-SHIFT 50 Hz V12 0~7 3 ADJ H-SHIFT 50 Hz V13 0~31 9 ADJ SECAM-BR V14 0~63 37 ADJ SECAM-BB V15 0~63 22 ADJ SUB-VOL V16 0~60 60 FIX V-SIZE 60 Hz V17 -31~0~+31 0 FIX IF NECESSARY, ADJ V-SHIFT 60 Hz V18 -7~0~+7 -1 FIX IF NECESSARY, ADJ H-SHIFT 60 Hz V19 -15~0~+15 +2 FIX IF NECESSARY, ADJ S-TRAP (BG) V20 0~15 7 AUTO S-TRAP (I) V21 0~15 7 AUTO S-TRAP (DK) V22 0~15 7 AUTO S-TRAP (M) V23 0~15 7 AUTO S-TRAP (5.74) V24 0~15 7 AUTO CUTOFF/BKGD YUV V25 R-DRI YUV V25 0~127 63 FIX B-DRI YUV V25 0~127 63 FIX R-CUT YUV V25 0~255 127 FIX G-CUT YUV V25 0~255 127 FIX B-CUT YUV V25 0~255 127 FIX SUB-CON YUV V26 0~127 100 FIX SUB-BRGHT YUV V27 0~255 127 FIX VS-CORRECT V28 0~63 32 FIX ONLY FOR M61266 VC-CORRECT OFFSET V29 -13~+13 0 FIX ONLY FOR M61266 V LINEARITY V30 0~63 32 FIX ONLY FOR M61266 V LINEARITY OFFSET V31 -13~+13 0 FIX ONLY FOR M61266

3 – 7

21JF2-RU/GA/SA/SF/SS

SETTING MODE (SECOND STAGE)

EEPROM ITEMS FUNCTION OSD DATA LENGTH

C.CLIP-LVL CLIP LEVEL CONTRAST CONTROL OF

RGB INPUT

RGB-CLIP CLIPPING OF RGB CONTRAST CON-

TROL

BS BLACK STRETCH F03 0(ON) / 1(OFF) 0 FIX

ABCL ABCL PROCESSING (ACL PROCESSING) F04 0(OFF) / 1(ON) 0 FIX

ABCL-GAIN ABCL PROCESSING GAIN F05 0(LOW) / 1(HIGH) 0 FIX

S-OUT-LVL AUDIO OUTPUT GAIN CONTROL F06 0~127 95 *FIX BUS SETUP

VIF-G P-IF DETECTION GAIN OUTPUT F07 0~7 4 FIX

SHPG SHARPNESS GAIN F08 0(NORMAL) / 1(HIGH) 0 FIX SHPG-P SHARPNESS GAIN PAL F09 0(NORMAL) / 1(HIGH) 0 FIX SHPG-S SHARPNESS GAIN SECAM F10 0(NORMAL) / 1(HIGH) 0 FIX

SHPG-N4 SHARPNESS GAIN N443 F11 0(NORMAL) / 1(HIGH) 0 FIX SHPG-N3 SHARPNESS GAIN N358 F12 0(NORMAL) / 1(HIGH) 1 FIX

YDL Y SIGNAL DELAY F13 0~7 5 FIX YDL-P Y SIGNAL DELAY PAL F14 0~7 5 FIX YDL-S Y SIGNAL DELAY SECAM F15 0~7 7 FIX

YDL-N4 Y SIGNAL DELAY N443 F16 0~7 5 FIX YDL-N3 Y SIGNAL DELAY N358 F17 0~7 5 FIX

YDL-AV Y SIGNAL DELAY AV F18 0~7 6 FIX YDL-AV-P Y SIGNAL DELAY PAL (AV) F19 0~7 6 FIX YDL-AV-S Y SIGNAL DELAY SECAM (AV) F20 0~7 7 FIX

YDL-AV-N4 Y SIGNAL DELAY N443 (AV) F21 0~7 6 FIX YDL-AV-N3 Y SIGNAL DELAY N358 (AV) F22 0~7 6 FIX

YDL-YUV Y SIGNAL DELAY YUV F23 0~7 6 FIX

COL-AV (OFFSET) COLOUR OFFSET AV F24 -31~0~+31 +10 *FIX BUS SETUP

COL-P (OFFSET) COLOUR OFFSET PAL F25 -31~0~+31 0 FIX

COL-S (OFFSET) COLOUR OFFSET SECAM F26 -31~0~+31 +9 FIX COL-N4 (OFFSET) COLOUR OFFSET N443 F27 -31~0~+31 -8 FIX COL-N3 (OFFSET) COLOUR OFFSET N358 F28 -31~0~+31 -7 FIX

COL-ADJ (OFFSET) COLOUR OFFSET ADJUST F29 -31~0~+31 0 *FIX BUS SETUP

SHP-AV (OFFSET) SHARPNESS OFFSET AV F30 -31~0~+31 +5 *FIX BUS SETUP

SHP-YUV (OFFSET) SHARPNESS OFFSET YUV F31 -31~0~+31 0 FIX

SHP-P (OFFSET) SHARPNESS OFFSET PAL F32 -31~0~+31 0 FIX

SHP-S (OFFSET) SHARPNESS OFFSET SECAM F33 -31~0~+31 -5 FIX SHP-N4 (OFFSET) SHARPNESS OFFSET N443 F34 -31~0~+31 0 FIX SHP-N3 (OFFSET) SHARPNESS OFFSET N358 F35 -31~0~+31 0 FIX TINT-AV (OFFSET) TINT OFFSET AV F36 -63~0~+63 0 *FIX BUS SETUP

TINT-ADJ (OFFSET) TINT OFFSET ADJUST F37 -63~0~+63 0 *FIX BUS SETUP

TINT-YUV-ADJ (OFF-

SET)

R-R (OFFSET) R-DRIVE OFFSET WHEN WHITE TEMP IS

B-R (OFFSET) B-DRIVE OFFSET WHEN WHITE TEMP IS

R-B (OFFSET) R-DRIVE OFFSET WHEN WHITE TEMP IS

B-B (OFFSET) B-DRIVE OFFSET WHEN WHITE TEMP IS

TRAP CENTER VALUE OF CHROMA TRAP F43 0~3 2 FIX TRAP-P CENTER VALUE OF CHROMA TRAP PAL F44 0~3 2 FIX TRAP-S CENTER VALUE OF CHROMA TRAP

TRAP-N4 CENTER VALUE OF CHROMA TRAP N443 F46 0~3 2 FIX TRAP-N3 CENTER VALUE OF CHROMA TRAP N358 F47 0~3 2 FIX

1W-TV VERT SYNC DETECTION MODE FOR AV

1W-AV VERT SYNC DETECTION MODE FOR TV

V-FREE (NO SYNC) SET VERTICAL TO FORCED FREE RUN

TINT YUV OFFSET ADJUST F38 -63~0~+63 0 FIX

RED

BLUE

SECAM

(1 WINDOW/2 WINDOW)

MODE

F01 0(20H) / 1(40H) 0 FIX

F02 0 (CLIP OFF) / 1(CLIP ON) 0 FIX

F39 -63~0~+63 +8 *FIX BUS SETUP

F40 -63~0~+63 -10 *FIX BUS SETUP

F41 -63~0~+63 -3 *FIX BUS SETUP

F42 -63~0~+63 +13 *FIX BUS SETUP

F45 0~3 2 FIX

F48 ACCEPTABLE PERIOD:

0(AUTOMATIC CHANGE)

/ 1(FIX (WIDE))

F49 ACCEPTABLE PERIOD:

0(AUTOMATIC CHANGE)

/ 1(FIX (WIDE))

F50 0(NORMAL) / 1(FRE-

ERUN)

INITIAL

DATA

FIX/ADJ/

AUTO

0FIX

1FIX

0FIX

REMARK

3 – 8

21JF2-RU/GA/SA/SF/SS

SETTING MODE (SECOND STAGE)

EEPROM ITEMS FUNCTION OSD DATA LENGTH

AFC2 (NO SYNC) HORIZONTAL AFC2 GAIN F51 0(NORMAL) / 1(DOWN) 0 FIX

GAMMA GAMMA CORRECTION QTY F52 0~3 0 FIX

BS-D/C BLACK STRETCH CONTROL LEVEL F53 0~15 10 FIX BS-GAIN BLACK STRETCH LEVEL F54 0(NORMAL) / 1(DOWN) 0 FIX OM-DET OVER MODULATION DETECT F55 0(OFF) / 1(ON) 0 FIX

SL-TV SLICE LEVEL OF SYNC DETECTION TV F56 0~7 2 FIX SL-AV SLICE LEVEL OF SYNC DETECTION AV F57 0~7 4 FIX

SL-YUV SLICE LEVEL OF SYNC DETECTION YUV F58 0~7 4 FIX

VD2/VD1/AS/FBP-TV VD2 & VD1-VERT SYNC DETECT MIN

WIDTH MSB & LSB RESPECTIVELY, ASTV/AV/YUV SWITCH & CH CHANGE, FBPFLYBACK PULSE SLICE LEVEL (TV)

VD2/VD1/AS/FBP-AV VD2 & VD1-VERT SYNC DETECT MIN

WIDTH MSB & LSB RESPECTIVELY, ASTV/AV/YUV SWITCH & CH CHANGE, FBPFLYBACK PULSE SLICE LEVEL (AV)

VD2/VD1/AS/FBP-YUV VD2 & VD1-VERT SYNC DETECT MIN

WIDTH MSB & LSB RESPECTIVELY, ASTV/AV/YUV SWITCH & CH CHANGE, FBP-

FLYBACK PULSE SLICE LEVEL (YUV) VDL COLOUR DIFF. INPUT PHASE ADJ F62 0~3 0 FIX UDL COLOUR DIFF. INPUT PHASE ADJ F63 0~3 0 FIX

AUTO-SCM-KIL-TV SECAM COLOUR KILLER SENSITIVITY

(TV)

SECAM-BGP INTERNAL SECAM BGP TIMING F65 0~3 0 FIX

N45 INHIBIT 50Hz NTSC 4.43 F66 0(NORMAL) / 1(INHIBIT) 0 FIX

TXT-POS-H (TELE-

TEXT)

TXT-POS-V (TELE-

TEXT)

OSD-POS OSD POSITION F69 0~127 9 FIX

CP CHARGE PUMP F70 0(FAST TUNING) /

SMALL-SURR (S-

CTRL)

SUB-BASS (S-CTRL) SUB BASS CONTROL F72 0(0dB), 1(-1dB), 2(-2dB),

SUB-TREB (S-CTRL) SUB TREBLE CONTROL F73 0(0dB), 1(-1dB), 2(-2dB),

AGC-ADJ (S-CTRL) AGC LEVEL ADJUST F74 0(AGC Off), 1(300mVrms),

AGC-SW-OFF

(NICAM)

AGC-GAIN-ADJ

(NICAM)

FM-LEVEL-ADJ

(NICAM)

IGR-LEVEL-ADJ

(NICAM)

NICAM-BG-LVL-ADJ

(NICAM)

NICAM-I-LVL-ADJ

(NICAM)

NICAM-DK-LVL-ADJ

(NICAM)

NICAM-LOW-ERR-LIM

(NICAM)

NICAM-UPP-ERR-LIM

(NICAM)

IGR-GAIN-ADJ (IGR) IGR GAIN ADJUST F84 -6~0~+7 0 FIX

TELETEXT HORIZONTAL POSITION F67 0~63 30 FIX

TELETEXT VERTICAL POSITION F68 0~63 34 FIX

SURROUND MODE SELECT F71 0(EALA EFFECT LARGE)

NICAM AGC SWITCH OFF F75 0(DISABLE, FIX GAIN),

NICAM AGC GAIN ADJUST F76 0~31 16 FIX

FM LEVEL ADJUST F77 -15~0~+15 0 FIX

IGR LEVEL ADJUST F78 -15~0~+15 +1 FIX

NICAM B/G LEVEL ADJUST F79 -15~0~+15 -2 FIX

NICAM I LEVEL ADJUST F80 -15~0~+15 +3 FIX

NICAM D/K LEVEL ADJUST F81 -15~0~+15 -1 FIX

NICAM LOWER ERROR LIMIT F82 0~255 35 FIX

NICAM UPPER ERROR LIMIT F83 0~255 70 FIX

F59 0~15 6 FIX

F60 0~15 14 FIX

F61 0~15 14 FIX

F64 0~3 1 FIX

1(MODERATE SPEED

TUNING)

/ 1(EALA EFFECT SMALL)

3(-3dB), 4(0dB), 5(+1dB), 6(+2dB), 7(+3dB)

2(400mVrms), 3(500Vrms), 4(600mVrms)

1(ENABLE)

INITIAL

DATA

1FIX

0FIX

6FIX

0*FIX

1FIX

FIX/ADJ/

AUTO

REMARK

3 – 9

21JF2-RU/GA/SA/SF/SS

SETTING MODE (SECOND STAGE)

EEPROM ITEMS FUNCTION OSD DATA LENGTH

FM-ID-SPEED

(NICAM)

NICAM-AUTO-MUTE NICAM AUTO DETECTION F86 0(MUTE) / 1(DEMUTE) 0 FIX

AUTO-SCM-KIL-AV-

YUV

AFC1-GAIN-TV MSB OF HORIZONTAL AFC GAIN1 (TV) F88 0(NORMAL) / 1(x2) /

AFC1-GAIN-AV MSB OF HORIZONTAL AFC GAIN1 (AV) F89 0(NORMAL) / 1(x2) /

AFC1-GAIN-YUV MSB OF HORIZONTAL AFC GAIN1 (YUV) F90 0(NORMAL) / 1(x2) /

CON-REDUCE CONTRAST (PICTURE LEVEL) CONTROL F91 0(0%)~1(25%)~2(50%) 0 FIX

TAKE-OFF-TV TAKEOFF/BPF OF CHROMA BPF PRO-

TAKE-OFF-AV TAKEOFF/BPF OF CHROMA BPF PRO-

TAKE-OFF-YUV TAKEOFF/BPF OF CHROMA BPF PRO-

C-ANGLE (103 DEG/

95 DEG)

AC-FAIL-WO-BRIGHT PICTURE BLACK LEVEL (BRIGHT) CON-

FORCED-SCM-KIL-TV FORCED SECAM COLOUR KILLER SEN-

FORCED-SCM-KIL-AV-

YUV

R-Y ADJ. COLOUR EDGE IMPROVEMENT F99 0(DISABLE) / 1(ENABLE) 1 FIX V-DEMUTE-DELAY VIDEO DEMUTE DELAY F100 0~255 0 *FIX BUS SETUP S-DEMUTE-DELAY SOUND DEMUTE DELAY F101 0~255 0 *FIX BUS SETUP

MER S-BOOSTER FREQ. CHARACTERISTIC

MEL1 S-BOOSTER LEVEL1 F103 0~255 150 FIX MEL2 S-BOOSTER LEVEL2 F104 0~255 156 FIX MEL3 S-BOOSTER LEVEL3 F105 0~255 163 FIX MEL4 S-BOOSTER LEVEL4 F106 0~255 165 FIX MEL5 S-BOOSTER LEVEL5 F107 0~255 170 FIX

MEL6 S-BOOSTER LEVEL6 F108 0~255 180 FIX S-ST-POINT S-BOOSTER START POINT F109 0~60 21 FIX S-SP-POINT S-BOOSTER STOP POINT F110 0~60 60 FIX

S-STEP S-BOOSTER STEP F111 0~60 7 FIX

POW-STORAGE CONTRAST/BRIGHTNESS INCREASE

S-B-BASS S-BOOSTER BASS LIMITER (WHEN S-

S-B-TREB S-BOOSTER TREBLE LIMITER (WHEN S-

S-BASS S-BOOSTER BASS LIMITER (WHEN S-

S-TREB S-BOOSTER TREBLE LIMITER (WHEN S-

V-STD-TV VERTICAL STANDARD SIGNAL DETEC-

V-STD-AV VERTICAL STANDARD SIGNAL DETEC-

V-STD-YUV VERTICAL STANDARD SIGNAL DETEC-

WO-Bright-after-WO-

TIME

WO-Contrast-after-

WO-TIME

WO-Bright-before-WO-

TIME

WO-Contrast-before-

WO-TIME WO-TIME WHITE OUT F124 0~31 0 FIX

FM SOUND IDENTIFICATION MODE F85 0(SLOW) / 1(MEDIUM) /

SECAM COLOUR KILLER SENSITIVITY (AV/YUV)

CESSING TV

CESSING AV

CESSING YUV CHROMA MODULATION ANGLE F95 0(103DEG) / 1(95DEG) 1 FIX

TROL - AC FAILURE

SITIVITY (TV) FORCED SECAM COLOUR KILLER SEN-

SITIVITY (AV/YUV)

CONTROL

GRADUALLY

BOOSTER ON)

BOOSTER OFF)

TOR SWITCH (TV)

TOR SWITCH (AV)

TOR SWITCH (YUV) WHITE OUT BRIGHT AFTER WHITE OUT

TIME WHITE OUT CONTRAST AFTER WHITE

OUT TIME WHITE OUT BRIGHT BEFORE WHITE

OUT TIME WHITE OUT CONTRAST BEFORE WHITE OUT TIME

F87 0~3 1 FIX

F92 0(BPF) / 1(TAKEOFF) 1 FIX

F93 0(BPF) / 1(TAKEOFF) 0 FIX

F94 0(BPF) / 1(TAKEOFF) 0 FIX

F96 0~255 255 FIX

F97 0~3 2 FIX

F98 0~3 2 FIX

F102 0~255 70 FIX

F112 0(DISABLE) / 1(ENABLE) 1 FIX

F113 -30~0~+30 +15 FIX

F114 -30~0~+30 +15 FIX

F115 -30~0~+30 +30 FIX

F116 -30~0~+30 +30 FIX

F117 0(DISABLE) / 1(ENABLE) 0 FIX

F118 0(DISABLE) / 1(ENABLE) 0 FIX

F119 0(DISABLE) / 1(ENABLE) 0 FIX

F120 0~255 255 FIX

F121 0~127 127 FIX

F122 0~255 255 FIX

F123 0~127 127 FIX

2(FAST) / 3(OFF)

2(x1.5) / 3(3.5)

INITIAL

DATA

FIX/ADJ/

AUTO

1FIX

0FIX

3FIX

REMARK

3 – 10

21JF2-RU/GA/SA/SF/SS

SETTING MODE (SECOND STAGE)

EEPROM ITEMS FUNCTION OSD DATA LENGTH

A2-ID-Response SETTING IDENTIFICATION RESPONSE

R-DRI YUV OFFSET RGB OUTPUT RED GAIN OFFSET (YUV) F126 -63~0~+63 0 FIX B-DRI YUV OFFSET RGB OUTPUT BLUE GAIN OFFSET (YUV) F127 -63~0~+63 0 FIX

R-CUT YUV OFFSET RGB OUTPUT-RED BIAS LEVEL OFFSET

G-CUT YUV OFFSET RGB OUTPUT-GREEN BIAS LEVEL OFF-

B-CUT YUV OFFSET RGB OUTPUT-BLUE BIAS LEVEL OFFSET

CON YUV OFFSET SUB-CONTRAS OFFSET (YUV) F131 -63~0~+63 0 FIX

BRT YUV OFFSET SUB-BRIGHT OFFSET (YUV) F132 -63~0~+63 0 FIX

SHP ANT-ONII OFF-

SET

WAIT MD TIME SETTING CYCLE PROCESS TIME AT

Contrast OFFSET CONTRAST (PICTURE LEVEL) OFFSET F135 -63~0~+63 0 FIX

Bright OFFSET PICTURE BLACK LEVEL (BRIGHT) OFF-

CR-PEDESTEL-ADJ Cr SIGNAL LEVEL ADJUSTMENT F137 0~15 8 FIX ONLY FOR

CB-PEDESTEL-ADJ Cb SIGNAL LEVEL ADJUSTMENT F138 0~15 8 FIX ONLY FOR

SIF-PAL SOUND S/N SWITCH FOR PAL F139 0(DISABLE) / 1(ENABLE) 0 FIX ONLY FOR

AV2 BRIGHTNESS

OFFSET

BASS OFFSET BASS OFFSET F141 -30~0~+30 0 FIX

TREBLE OFFSET TREBLE OFFSET F142 -30~0~+30 0 FIX

TIME

(YUV)

SET (YUV)

(YUV)

SHARP ANT-ON II OFFSET FOR VIDEO TONE

LOW POWER

SET

AV2 BRIGHT OFFSET F140 -15~0~+15 +7 FIX

F125 0(NORMAL) / 1(FAST) 1 FIX

F128 -63~0~+63 0 FIX

F129 -63~0~+63 0 FIX

F130 -63~0~+63 0 FIX

F133 -31~0~+31 0 FIX

F134 0~4 2 FIX

F136 -63~0~+63 0 FIX

INITIAL

DATA

FIX/ADJ/

AUTO

REMARK

M62166

3 – 11

21JF2-RU/GA/SA/SF/SS

OPTION MODE (FOURTH STAGE)

EEPROM ITEMS OSD DATA LENGTH INITIAL DATA REMARK

***HOTEL MODE O01 0 (0FF) / 1 (0N) 0 OPTION SET UP ***HTL-POS O02 0~99,-- -- OPTION SET UP ***HTL-VOL O03 0~60,-- -- OPTION SET UP VIF O04 0 (38.0) / 1 (38.9) 1 OPTION SET UP SECAM O05 0 (DISABLE) / 1 (ENABLE) 1 OPTION SET UP N443(RF) O06 0 (DISABLE) / 1 (ENABLE) 1 OPTION SET UP N358(RF) O07 0 (DISABLE) / 1 (ENABLE) 1 OPTION SET UP FORCE-COL O08 0 (DISABLE) / 1 (ENABLE) 0 OPTION SET UP S-SYS O09 1(BG ONLY)~15(ALL) 15 OPTION SET UP AV O10 0 (DISABLE) / 1 (ENABLE) 1 OPTION SET UP AV2 O11 0 (DISABLE) / 1 (ENABLE) 1 OPTION SET UP YUV O12 0 (DISABLE) / 1 (ENABLE) 1 OPTION SET UP S-CTRL O13 0 (DISABLE) / 1 (ENABLE) 1 OPTION SET UP NICAM O14 0 (DISABLE) / 1 (ENABLE) 0 OPTION SET UP A2 O15 0 (DISABLE) / 1 (ENABLE) 0 OPTION SET UP TELETEXT O16 0 (DISABLE) / 1 (ENABLE) 0 OPTION SET UP BILLINGUAL O17 0 (DISABLE) / 1 (ENABLE) 0 OPTION SET UP LANGUAGE O18 1~255 63 OPTION SET UP SEARCH-SPEED O19 1(350)~2(450)~3(550)~4(650)~5(750) 3 OPTION SET UP R/C-MENU O20 0 (ENABLE) / 1 (DISABLE) 0 OPTION SET UP LED-CONT O21 0 (ONE LED) / 1 (TWO LED) 0 OPTION SET UP S-BOOSTER O22 0 (DISABLE) / 1 (ENABLE) 0 OPTION SET UP SHARP-LOGO O23 0 (DISABLE) / 1 (ENABLE) 0 OPTION SET UP YUV BKGD ADJ O24 0 (DISABLE) / 1 (ENABLE) 0 OPTION SET UP WHITE BACK O25 0 (DISABLE) / 1 (ENABLE) 1 OPTION SET UP BOOSTER O26 0 (DISABLE) / 1 (ENABLE) 0 OPTION SET UP ****MESSAGE O27 0 (DISABLE) / 1 (ENABLE) 0 OPTION SET UP ****MESSAGE SCROLL TIME O28 Message Display Timing 0 OPTION SET UP LNA TUNER O29 0(Alps) / 1(Matsushita) 0 OPTION SET UP ONE CHIP IC O30 0(M61260 & M61262) / 1(M61266) 0 OPTION SET UP MESSAGE INPUT TIMMING O31 0~4 2 OPTION SET UP

*** HOTEL MODE OPERATION OF HOTEL MODE: WHEN CHANGE SERVICE DATA O01 TO 1, HOTEL MODE IS ON WHEN HOTEL MODE IS ON,

1. Max volume data is determined by option setting HTL-VOL (O03)

2. Channel position after POWER ON is determined by option setting HOTEL-POS (O02) (if option setting HOTEL-POS is not set, processing is according to last position data).

3. User data updates of EEPROM regarding the video and audio control is not allowed.

4. Preset mode is disable.

5. CH SETTING menu is not available.

3 – 12

21JF2-RU/GA/SA/SF/SS

4. ADJ ITEM: BUS SET UP (1 ST & 2ND STAGE SERVICE DATA)

SERVICE ITEMS 21JF2-RU 21JF2-GA/SA 21JF2-SF 21JF2-SS

V08 SUB-SHARPNESS 46 46 46 46 F06 S-OUT-LVL 105 105 105 105 F24 COL-AV +10 0 0 0 F29COL-ADJ 0 +5+5+5 F30SHP-AV +1+1+1+1 F36TINT-AV 0 -3-3-3 F37 TINT-ADJ 0 -8 -8 -8 F39 R-R +8 0 0 0 F40B-R -10-9-9-9 F41 R-B -3 -6 -6 -6 F42 B-B (OFFSET) +16 +8 +8 +8

5. ADJ ITEM: OPTION SET UP (4TH STAGE SERVICE DATA)

SERVICE ITEMS 21JF2-RU 21JF2-GA/SA 21JF2-SF 21JF2-SS

O01 HTL MODE 0 (0FF) / 1 (0N) 0 0 0 0 O02 HTL-POS 0~99,-- -- -- -- -O03 HTL-VOL 0~60,-- -- -- -- -O04 VIF 0 (38.0) / 1 (38.9) 1 1 1 1 O05 SECAM 0 (DISABLE) / 1 (ENABLE) 1 1 1 1 O06 N443(RF) 0 (DISABLE) / 1 (ENABLE) 1 1 1 1 O07 N358(RF) 0 (DISABLE) / 1 (ENABLE) 0 0 0 0 O08 FORCE-COL 0 (DISABLE) / 1 (ENABLE) 0 0 0 0 O09 S-SYS 1(BG ONLY)~15(ALL) 7 7 7 7 O10 AV 0 (DISABLE) / 1 (ENABLE) 1 1 1 1 O11 AV2 0 (DISABLE) / 1 (ENABLE) 1 1 1 1 O12 YUV 0 (DISABLE) / 1 (ENABLE) 0 0 0 0 O13 S-CTRL 0 (DISABLE) / 1 (ENABLE) 0 0 0 0 O14 NICAM 0 (DISABLE) / 1 (ENABLE) 0 0 0 0 O15 A2 0 (DISABLE) / 1 (ENABLE) 0 0 0 0 O16 TEXT 0 (DISABLE) / 1 (ENABLE) 0 0 0 0 O17 BIL 0 (DISABLE) / 1 (ENABLE) 0 0 0 0 O18 LANG 1~255 9 55 63 63 O19 SEARCH-SP 1(350)~2(450)~3(550)~4(650)~5(750) 3 3 3 3 O20 R/C MENU 0 (ENABLE) / 1 (DISABLE) 1 1 1 1 O21 LED-CONT 0 (ONE LED) / 1 (TWO LED) 0 0 0 0 O22 S-BOOSTER 0 (DISABLE) / 1 (ENABLE) 0 0 0 0 O23 SHARP-LOGO 0 (DISABLE) / 1 (ENABLE) 0 0 0 0 O24 YUV BKGD ADJ 0 (DISABLE) / 1 (ENABLE) 0 0 0 0 O25 WHITE BACK 0 (DISABLE) / 1 (ENABLE) 0 0 0 0 O26 BOOSTER 0 (DISABLE) / 1 (ENABLE) 0 0 0 0 O27 MESSAGE 0 (DISABLE) / 1 (ENABLE) 0 0 0 0 O28 MESSAGE SCROLL TIME 0 ~ 20 0 0 0 0 O29 LNA TUNER 0(Alps) / 1(Matsushita) 0 0 0 0 O30 ONE CHIP IC 0(M61260 & M61262) / 1(M61266) 0 0 0 0 O31 MSG IN TM 2 2 2 2

3 – 13

21JF2-RU/GA/SA/SF/SS

[2] ADJUSTMENT

ADJUSTMENT PRECAUTION: Makesure TV Set is in “Normal Condition” before switch to Service Mode for Adjustment.

1. PIF ADJUSTMENT

No.

Adjustment point

Tuner IFT

1 1. Get the tuner ready to receive the CH. E - 9

( PRESET )

Adjustment procedure/conditions Waveform and others

signal,but with no signal input. Adjust the PLL data.

2. Connect the sweep generator's output cable to the tuner antenna. ( RF SWEEP )

3. Adjust the sweep generator's to 80dBµV.

4. Connect the response lead ( use LOW IMPEDANCE probe with wave detector ; see Fig.1 ) to the tuner's IF output terminal. ( This terminal must have the probe alone connected ).

5. Set the RF AGC to 0 - 6 V with no saturation with the waveform.

6. Adjust the tuner IF coil to obtain the waveform as showninFig.2.

Note: Be sure to keep the tuner cover in posi-

tion during this adjustment.

RF-AGC TAKE OVER

1. Receive "PAL COLOUR BAR" signal.

Signal Strength: 56 ± 1dBµV (75 ohm open)

POINT ADJUSTMENT

C BUS

CONTROL)

(AUTO & MANUAL ADJ)

2. Connect the oscilloscope to TP201 (Tuner’s AGC Terminal) as shown in Fig. 3-1.

Oscilloscope

0.1V

TP201+

—

Bias box

TV Set

—

»»Bias box: About 4.5 V

1000p

10k

Oscilloscope

100k

1n60

1000p

IF OUT

75ohm

Fig.1

E-9 CH

-1.5+/-0.8dB

Fig.2

* for Auto ADJ

1)Receive “PAL COLOUR BAR” signal. signal strength: 56

± 1dBµV(75

ohm open)

1)Go to service mode.

2)Go to service data V01, press R/C to operate auto key ( Hex C1) and confirm the ‘OK’ display on the screen.

3)If appear NG, increase data some step and pls repeat step

4)Proceed step 4 & 5 in manual mode.

Fig. 3-1

3. Call "V01" mode in service mode. Adjust the "V01"

bus data to obtain the Tuner output pin drop

0.1~1.0V below maximum voltage.

4. Change the antenna input signal to 63~67dBµV, and make sure there is no noise.

5. Turn up the input signal to 90~95 dBµVtobesure that there is no cross modulation beat.

3 – 14

21JF2-RU/GA/SA/SF/SS

2. PURITY ADJUSTMENT

No.

Adjustment point

PURITY ADJ.1

Adjustment procedure/conditions Waveform and others

1. Receive the GREEN-ONLY signal. Adjust the beam current to ~700 µA.

2. Degauss the CRT enough with the degausing coil. Note: Follow the Job Instruction Sheet to adjust

the magnetic field.

(Reference: page 3-6)

3. Maintain the purity magnet at the zero magnetic field and keep the static convergence roughly adjusted.

4. Observe the points a, b, as shown in Fig. 1-1 through the microscope. Adjust the landings to A rank requirement.

5. Orient the raster rotation to 0 eastward.

6. Tighten up the deflection coil screws.

Tightening torque: 108 ± 20N(11± 2kgf)

7. Make sure the CRT corners landing meet the A rank requirements. If not, stick the magnet sheet to correct it.

Note: This adjustment must be done after

warming up the unit for 30 minutes or longer with a beam current over 700

Note:

Set to service mode by remote con-

troller then press factory process R/C RGB key to change to RGB mono colour mode.

* For the following colours press R/C RGB(Hex 7E)

key to change.

30mm 30mm

Fig. 1-1

A=B

Fig. 1-2

Rank "A"

(on the right of the CRT)

GREEN

ONLY

BLUE

ONLY

Signal-colour

screen cleared

RED

ONLY

A=B

Fig. 1-3

Rank "A"

(on the left of the CRT)

* Press R/C RGB key for 1 sec-

ond in NORMAL MODE, the colour will change to RGB mono colour mode.

3 – 15

3. CONVERGENCE ADJUSTMENT

21JF2-RU/GA/SA/SF/SS

No.

Adjustment point

CONVERGENCE ADJ. (Tobedone after the purity adjustment.)

Adjustment procedure/conditions Waveform and others

1. Receive the "Crosshatch Pattern" signal.

2. Using the remote controller, call NORMAL mode.

Static convergence

1. Turn the 4-pole magnet to a proper opening angle in order to superpose the blue and red colours.

2. Turn the 6-pole magnet to a proper opening angle in order to superpose the green colour over the blue and red colours.

Dynamic convergence

1. Adjust the convergence on the fringes of the screen in the following steps. a) Fig. a: Drive the wedge at point "a" and swing

the deflection coil upward.

b) Fig. b: Drive the wedge at point "b" and "c" and

swing the deflection coil downward.

c) Fig. c: Drive the "c" wedge deeper and swing

the deflection coil rightward.

d) Fig. d: Drive the "b" wedge deeper and swing

the deflection coil leftward.

2. Fix all the wedges on the CRT and apply glass tape over them.

3. Apply lacquer to the deflection yoke lock screw, magnet unit (purity, 4-pole, 6-pole magnets) and magnet unit lock screw.

BGR

B G R

Fig. a

RGB

R G B

Fig. b

RGB

G R

Fig. c

BGR

G B

Finally received the Red-only and Blue-only signals to make sure there is no other colours on the screen.

4-pole magnet

6-pole magnet

CRT neck

Lacquer

Purity magnet

20mm

About 100Deg

Lacquer

Wedge "b"

Fig. d

Wedge "a"

About

100Deg

Wedge "c"

3 – 16

21JF2-RU/GA/SA/SF/SS

4. H-VCO, VIF-VCO & S-TRAP fo ADJUSTMENT

No.

Adjustment point

H-VCO ADJ

C BUS

CONTROL)

(AUTO &

MANUAL ADJ)

VIF-VCO ADJ

C BUS CONTROL) (AUTO & MANUAL ADJ)

Adjustment procedure/conditions Waveform and others

(MANUAL ADJ)

1) In No signal (RASTER) condition.

2) Go to service mode, choose service data V03.

3) Connect oscilloscope to IC801 pin11, adj V03 until freq become 15.625±0.15 KHz

(Auto Adj)

1) In No signal (RASTER) condition.

2) Go to service mode.

3) Choose service data V03, by pressing R/C Auto (Hex C1) key, OSD will appear “OK” at screen.

4) If appear “NG” pls repeat step 3.

(Manual ADJ)

1) In No signal (RASTER) condition.

2) Go to service mode, choose service data V02.

3) Connect oscilloscope to IC801 pin2, adj V02 until voltage become 2.5±1V.

(Auto Adj)

1) In No signal (RASTER) condition.

2) Go to service mode, choose service data V02.

3) Press the R/C Auto (Hex C1) key, OSD will appear “OK” at screen.

4) If appear “NG” pls repeat step 3.

This adjustment must be done after aging at least 3 minutes.

S-TRAP fo

ADJ

(I CONTROL) (AUTO & MANUAL ADJ)

C BUS

(Manual ADJ)

1) In No signal (RASTER) condition.

2) Go to service mode, choose service data V21.

3) Connect oscilloscope to TP 801, adj V21 until voltage become Min (below 5 V).

4) After that pls adj service data V20 & V24 same as

“V21”, V22 to “V21-1”, V23 to “V21+2”.

(Auto Adj)

1) In No signal (RASTER) condition.

2) Go to service mode, choose service data V21.

3) Press the R/C Auto (Hex C1) key, OSD will appear “OK” at screen.

4) If appear “NG” pls repeat step 3.

3 – 17

5. SCREEN, WHITE BALANCE, SUB-BRIGHTNESS & SUB-CONTRAST ADJUSTMENT

No.

Adjustment point

SCREEN ADJUSTMENT

C BUS

CONTROL)

Adjustment procedure/conditions Waveform and others

1) In window pattern signal condition.

R-CUTOFF (R-C) UP R-CUTOFF (R-C) DOWN

2) Go to service mode, then select V00.

G-CUTOFF (G-C) UP G-CUTOFF (G-C) DOWN

By pressing R/C key S-Mute (Hex E8), R-D auto switch to 63, B-D auto switch to 63, R-

C auto switch to 127, G-C auto switch to 127, B-C auto switch to 127, Subbrightness V06 auto switch to 127.

Y-mute & Vertical off, screen will be in

B-CUTOFF (B-C) UP B-CUTOFF (B-C) DOWN R-DRIVE (R-D) UP R-DRIVE (R-D) DOWN B-DRIVE (B-D) UP B-DRIVE (B-D) DOWN

vertical cut-off condition.

Adjust the Screen so that cut-off line appear in low bright, then judge that whether the cut-off line appear in Red or Green or Blue color, in this condition between R-C & G-C & B-C, fix the data of the color appear in cut-off line and adj the other two cut-off data (Note 1) so that cut-off line color become white.

21JF2-RU/GA/SA/SF/SS

RC key "1" (HEX 80) RC key "4" (HEX 20) RC key "2" (HEX 40) RC key "5" (HEX A0) RC key "3" (HEX C0) RC key "6" (HEX 60) RC key "7" (HEX E0) RC key "Flashback" (HEX E4) RC key "8" (HEX 10) RC key "0" (HEX 50)

WHITE

BALANCE ADJ (to be done after screen adj)

C BUS

(I CONTROL)

Turn the screen VR of FBT so that cut-off line just disappear and use R/C by pressing key S-Mute (Hex E8) to disable the Ymute & V-cut so that picture appear in normal mode.

WHITE (HIGH BEAM) ( In Window Pattern

Signal) First use Minolta Color Analyzer CA100, let the gun point at Dark White position (as drawing attach), Adj V06 until LUMI- NANCE Y become 5 cd/m2, then let the gun point at White position ( as drawing attach), Adj V04 until LUMINANCE Y become: 160 cd/m2. Adj the R-D & B-D until the axis of color temperature become

K X : 300

7500

Y : 310

12300oK X : 272

Y : 275

18000

K X : 255

Y : 255

DARK WHITE (LOW BEAM) (In Window

Pattern Signal) Let the gun point at Dark White position, if the color temperature data shift away from the data adjusted in step 1, adjust R-C, G-

C & B-C but between them, first color appears in Screen adj item 1)-4 is fixed,

adj the other two so that to obtain the similar axis as above. ** Repeatstep1&2togetaregulatedposition

5.5% IRE

*Note :

WINDOW PATTERN SIGNAL

White

50% IRE

Signal using W/B Pattern Generator SX-1006 (IWATSU) or equivalent. Window Pattern Signal output level are as above:

Dark White

9.5% IRE

3 – 18

21JF2-RU/GA/SA/SF/SS

No.

Adjustment point

Adjustment procedure/conditions Waveform and others

SUB-

BRIGHTNESS (to be done after screen, white balance adj) (I CONTROL)

SUBCONTRAST (to be done after screen, white balance adj, sub-brightness adj) (I CONTROL)

C BUS

1) In Window Pattern Signal condition.

Using Minolta Color Analyzer CA-100, let the gun point at Dark White position (as attach drawing), adjust V06 Bus data until LUMI-

NANCEY=3

± 0.5 cd/m2.

1) In Window Pattern Signal condition.

Using Minolta Color Analyzer CA-100, let the gun point at White position (as attach drawing), adjust V04 Bus data until LUMINANCE Y = 160

± 10cd/m2

WINDOW PATTERN SIGNAL

Dark White

WINDOW PATTERN SIGNAL

White

Beam Current

Check

1) Receive the “Monoscope Pattern” signal.

2) Press R/C to set Picture NORMAL condition.

3) Connect the DC miliammeter between TP 603 (+)&TP602(-). (Full Scale: 3mA Range)

4) Beam current must be within 1000±100

µA .

3 – 19

6. HORIZONTAL, VERTICAL, DEFLECTION LOOP and FOCUS ADJUSTMENT

21JF2-RU/GA/SA/SF/SS

No.

Adjustment point

H-SHIFT

CBUS

(I CONTROL) (to be done after purity adj)

V-SHIFT

CBUS

(I CONTROL) (to be done after purity adj)

V-SIZE

CBUS

(I CONTROL) (to be done after purity, V-shift adj)

Adjustment procedure/conditions Waveform and others

1) Receive Monoscope Pattern Signal (PAL 50 Hz)

2) Choose the service data V13.

3) Adjust the V13 bus data to have a balance position to spec of A=B (as attach drawing)

4) If cannot make it to A=B, adjust from the best point so that B slightly smaller than A.

1) Receive Monoscope Pattern Signal (PAL 50 Hz)

2) Choose the service data V12.

3) Adjust V12 bus data to have a most acceptable vertical position, the monoscope pattern should be Balance in vertical position.

Note: B line (Monoscope middle line) must same or nearest higher position to the A mark (Tube middle mark),refer to the attach drawing.

1) Receive Monoscope Pattern Signal (PAL 50 Hz)

2) Choose the service data V11.

3) Adjust V11 bus data until the overscan become

10±1.5 %

Caution1: Pls aging TV more than 10 minutes

before adjustment.

Figure:

OK OK NG

SUB-

1) Confirm Service data V08 is 46.

SHARPNESS

Focus

1) Receive the "Monoscope Pattern" signal.

2) Press R/C to set Picture NORMAL condition.

3) Adjust the focus control to get the best focusing.

7. PAL CHROMA ADJUSTMENT

No.

Adjustment point

SUB COLOUR

C BUS

CONTROL)

1) Receive the “PAL Colour Bar” signal.

2) Press R/C to set Picture Normal condition.

3) Connect the oscilloscope to R-Amp Transistor

(to be done after subpicture, subtint adj)

4) Using the R/C call V05 in SERVICE mode. Ad-

5) Clear the SERVICE mode.

Adjustment procedure/conditions Waveform and others

Cy G B

Base(TP 851).

Range : 100mV/Div (AC)

(Using 10:1 Probe)

Sweep Time : 10 µ sec/Div

just V05 bus data, so that the 75% White & Red

75%

Y 100% W Mg R

portions of PAL Colour Bar be at the same level shown as Fig 1-1.

Fig. 1-1

3 – 20

21JF2-RU/GA/SA/SF/SS

8. NTSC CHROMA ADJUSTMET

No.

Adjustment point

SUB-TINT 1) Receive the "NTSC3.58 Colour Bar" signal thru

C BUS CONTROL)

AV in.

2) Connect the oscilloscope to B-Amp Transistor

Base (TP853 ).

Range : 100mV/Div . (AC)(Use Probe 10:1) Sweep time : 10 µsec/Div.

3) In Service mode, go to V07, press R/C Y- mute(Hex E4) or FLASHBACK Key.

4) Call the "V07" data in service mode. Adjust the "V07" bus data to obtain the waveform shown as Fig. 1-1.

5) Disable Y-Mute by pressing key(Hex E4) or

FLASHBACK,

9. SECAM CHROMA ADJUSTMENT

No.

Adjustment point

SECAM

BLACK LEVEL R-Y/B-Y

C BUS

CONTROL)

1) Receive “SECAM COLOUR BAR” signal.

2) In the service mode, select service data V14.

3) Connect oscilloscope to TP 801.

Range : 20mV/Div. (AC)(Use Probe 10:1) Sweep time : 20 µsec/Div.

4) Adjust the V14 so that the offset of R-Y is minimum, shown in Fig 2-1(b), it means adjust the offset of between No signal line and Signal line to minimum.

5) In the service mode, select service data V15.

6) Connect oscilloscope to TP 801.

Range : 20mV/Div. (AC)(Use Probe 10:1) Sweep time : 20 µsec/Div.

7) Adjust the V15 so that the offset of B-Y to minimum, shown in Fig 2-2(b), it means adjust the offset of between No signal line and Signal line to minimum.

Adjustment procedure/conditions Waveform and others

WYCyGMgR B

Fig. 1-1

then clear the SERVICE mode.

Adjustment procedure/conditions Waveform and others

Offset

Fig 2-1(a)

Fig 2-1(b)

3 – 21

Offset

Fig 2-2(a)

Fig 2-2(b)

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