Sharp 21HF2-SS User manual

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 ............................................. 3-13
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 DIA-
GRAM
[1] SOLID STATE DEVICE BASE DIAGRAM........ 6-1
CHAPTER 7. WAVEFORMS
[1] WAVEFORMS ................................................ 7-1
CHAPTER 8. CAHSSIS LAYOUT
[1] CHASSIS LAYOUT........................................8-1
CHAPTER 9. BLOCK DIAGRAM
[1] BLOCK DIAGRAM: CRT UNIT ......................9-1
[2] BLOCK DIAGRAM: MAIN UNIT ....................9-2
CHAPTER 10. DESCRIPTION OF SCHEMATIC DIA-
GRAM
[1] DESCRIPTION OF SCHEMATIC DIA-
GRAM..........................................................10-1
CHAPTER 11. SCHEMATIC DIAGRAM
[1] SCHEMATIC DIAGRAM: CRT UNIT ........... 11-1
[2] SCHEMATIC DIAGRAM: MAIN UNIT.......... 11-2
CHAPTER 12. PRINTED WIRING BOARD ASSEM-
BLIES
[1] PWB-A: MAIN UNIT ....................................12-1
[2] PWB-B: CRT UNIT (Component Side)........12-5
Parts Guide
SERVICE MANUAL
CONTENTS
21HF2-SS
No. S15D621HF2-SS
COLOUR TELEVISION
Chassis No. GA-2
21HF2-SS
MODEL
SHARP CORPORATION
The chassis in this receiver is partially hot. Use an isolation transformer between the line cord plug and power recep-
tacle, when servicing this chassis. To prevent electric shock, do not remove cover. No user-serviceable parts inside.
Refer servicing to qualified service personnel.
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.
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
Blue Back Noise Mute
Front AV IN & Rear AV IN/OUT Terminals
Front Headphone Jack
NTSC Colour Comb (AV Only)
High Contrast Picture
Hotel Mode
White Temperature Select
English/Chinese/French/Malay/Arabic
5 Languages OSD
WARNING

21HF2-SS
1 – 1
21HF2-SS Service Manual
CHAPTER 1. SPECIFICATIONS
[1] SPECIFICATIONS
Convergence ................................................................. Self Convergence System
Focus ............................................................................................ UNI-BI Focusing
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 ........................................................................................ 95W
Audio Power Output Rating ............................................................... 2.5W(rms)X2
Speaker
Size ............................................................................... 12x6cmElliptic (2pcs)
Voice Coil Impedance ........................................................... 16 ohms at 400 Hz
Aerial Input Impedance
VHF/UHF ..........................................................................
..................................
75 ohms Unbalanced
Receiving System PAL I, B/G, D/K & SECAM B/G, D/K, -K1
Receiving Channel
VHF-Channels ....................................... E2(48.25MHz) thru E12(224.25MHz)
C1(49.75 MHz) thru C12(216.25 MHz)
S1(105.25 MHz) thru S41(463.25 MHz)
UHF-Channels ................................... E21(471.25MHz) thru E69(855.25MHz)
C13(471.25 MHz) thru C57(863.25 MHz)
Dimensions ..................................................................................... Width: 618 mm
Height: 471 mm
Depth: 485 mm
Weight(approx): 25.5 kg
Cabinet material .................................................................................... All Plastics
Specifications are subject to change without prior notice.

21HF2-SS
2 – 1
21HF2-SS Service Manual
CHAPTER 2. IMPORTANT SERVICE NOTES
[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 tube of the same type number 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, be sure not to increase the high voltage to more than 30.0kV (at beam 0 μA) for the set.
2. To keep the set in a normal operation , be sure to make it function on 27.0kV ±1.0kV (at beam 1,000 μA) in the case of the set. 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 unauthorized types and/or brands which may cause excess 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-metallic control knobs, insulating fishpapers, cabinet backs, adjustment and compartment covers or
shields, isolation resistor- capacity networks, mechanical insulators etc.

21HF2-SS
3 – 1
21HF2-SS Service Manual
CHAPTER 3. ADJUSTMENT PRECAUTIONS
[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 adjust-
ments 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.
1. Setting the service mode by the microprocessor.
i) Short JA 304 & JA 307 , then tv set will switch to the 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) Disable the short of JA 304 & JA 307, it will switch to the NORMAL mode position, and the microprocessor is out of the SERVICE mode.
2. Factory Presetting.
i) Short JA 304 & JA 307, then turn ON the main power and release the short of JA 304 & JA 307 after raster appeared on the screen. Initial val-
ues are automatically preset, only when a new EEPROM is used (Judge with the first 4 bytes ).
ii) The initial data are preset as listed in page 4-2 to 7-1.
iii) Make sure the data need modification or not (Initial data).
NOTE: Once the chassis has been assembled together and ready to be POWER ON for the FIRST TIME, make sure to short JA304 & JA307 to
switch to the service mode position first and then turn on the main power switch (See 2-i) above).
Precaution: If haven’t done this initialization, it may possibly generate excessive Beam current.
3. For reference please check with memory map.

21HF2-SS
3 – 2
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 REVISION
1 BUS SET UP
2 OPTION SET UP
3H-VCO
4VIF-VCO
5S-TRAPfo
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-COLOUR
19 SECAM-OFFSET
20 BEAM CURRENT CHECK
21 BEAM PROTECTOR CHECK
22 HV PROTECTOR CHECK
23 OTHER PROTECTOR CHECK
24 AV OUT CHECK
25 AV IN CHECK
26 CONTRAST CONTROL CHECK
27 COLOUR CONTROL CHECK
28 BRIGHTNESS CONTROL CHECK
29 TINT CONTROL CHECK
30 SHARPNESS CONTROL CHECK
31 CH DISPLAY COLOUR CHECK
32 NORMAL DISPLAY CHECK
33 WHITE TEMP CONTROL CHECK
34 COLOUR SYSTEM CHECK
35 SOUND SYSTEM CHECK
36 NOISE MUTE CHECK
37 OSD LANGUAGE QUANTITY CHECK
38 HEAD PHONE CHECK
39 SHOCK TEST CHECKING
40 ROM-CORRECTION CHECKING

21HF2-SS
3 – 3
2. USER DATA IN SERVICE MODE
1. * While SERVICE mode ON, EEPROM DATA will switch to the service dataAlso, once SERVICE mode OFF, EEPROM will switch back to previous
USER DATA.
2. * In the service mode, the user data establish as below,
*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
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
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 9 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)
C1 AUTO ADJ FOR V01, V02, V03, V20, V21, V22, V23,V24
CA T-SET
81 SERVICE MODE

21HF2-SS
3 – 4
** After short JA304 & JA307, and turn on the MAIN POWER switch, read data from EEPROM address 00H ~ 03H, and compare to the list below, if
different, initialize the EEPROM.
** There are four stages of service mode data.
First stage data from V00~V24 (Adjustment Mode).
To go into second stage of service mode data, press MENU key.
Second stage data from F01~F131 (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~O23 (Option Mode).
Address : Data Address : Data
00H : 7AH 02H : 71H
01H : 73H 03H : 79H
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-COLOUR 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
SUB-COLOUR -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

21HF2-SS
3 – 5
SETTING MODE (SECOND STAGE)
EEPROM ITEMS FUNCTION OSD DATA LENGTH INITIAL DATA FIX/ADJ/AUTO REMARK
STRAPQ-BG RAISE Q SOUND TRAP B/G F01 0(NORMAL)/1(Q-UP) 0 FIX
STRAPQ-I RAISE Q SOUND TRAP I F02 0(NORMAL)/1(Q-UP) 0 FIX
STRAPQ-DK RAISE Q SOUND TRAP D/K F03 0(NORMAL)/1(Q-UP) 0 FIX
STRAPQ-M RAISE Q SOUND TRAP M F04 0(NORMAL)/1(Q-UP) 0 FIX
STRAPQ-574 RAISE Q SOUND TRAP BILINGUAL F05 0(NORMAL)/1(Q-UP) 0 FIX
C.CLIP-LVL CLIP LEVEL CONTRAST CONTROL F06 0(20H)/1(40H) 0 FIX
OF RGB INPUT 0(20H)/1(40H)
RGB-CLIP CLIPPING OF RGB CONTRAST F07 0(CLIP OFF)/ 0 FIX
CONTROL 1(CLIP ON)
BS BLACK STRETCH F08 0(ON)/1(OFF) 0 FIX
ABCL ABCL PROCESSING F09 0(OFF)/1(ON) 0 FIX
(ACL PROCESSING)
ABCL-GAIN ABCL PROCESSING GAIN F10 0(LOW)/1(HIGH) 0 FIX
S-OUT-LVL AUDIO OUTPUT GAIN CONTROL F11 0~127 95 FIX
VIF-G P-IF DETECTION GAIN OUTPUT F12 0~7 4 FIX
SHPG SHARPNESS GAIN F13 0(NORMAL)/1(HIGH) 0 FIX
SHPG-P SHARPNESS GAIN PAL F14 0(NORMAL)/1(HIGH) 0 FIX
SHPG-S SHARPNESS GAIN SECAM F15 0(NORMAL)/1(HIGH) 0 FIX
SHPG-N4 SHARPNESS GAIN N443 F16 0(NORMAL)/1(HIGH) 0 FIX
SHPG-N3 SHARPNESS GAIN N358 F17 0(NORMAL)/1(HIGH) 1 FIX
YDL Y SIGNAL DELAY F18 0~7 5 FIX
YDL-P Y SIGNAL DELAY PAL F19 0~7 5 FIX
YDL-S Y SIGNAL DELAY SECAM F20 0~7 7 FIX
YDL-N4 Y SIGNAL DELAY N443 F21 0~7 5 FIX
YDL-N3 Y SIGNAL DELAY N358 F22 0~7 5 FIX
YDL-AV Y SIGNAL DELAY AV F23 0~7 6 FIX
YDL-AV-P Y SIGNAL DELAY PAL (AV) F24 0~7 6 FIX
YDL-AV-S Y SIGNAL DELAY SECAM (AV) F25 0~7 7 FIX
YDL-AV-N4 Y SIGNAL DELAY N443 (AV) F26 0~7 6 FIX
YDL-AV-N3 Y SIGNAL DELAY N358 (AV) F27 0~7 6 FIX
YDL-YUV Y SIGNAL DELAY YUV F28 0~7 6 FIX
COL-AV (OFFSET) COLOUR OFFSET AV F29 -31~0~+31 +10 *FIX BUS SET UP
COL-P (OFFSET) COLOUR OFFSET PAL F30 -30~0~+31 0 FIX
COL-S (OFFSET) COLOUR OFFSET SECAM F31 -31~0~+31 +9 FIX
COL-N4 (OFFSET) COLOUR OFFSET N443 F32 -31~0~+31 -8 FIX
COL-N3 (OFFSET) COLOUR OFFSET N358 F33 -31~0~+31 -7 FIX
COL-ADJ (OFFSET) COLOUR OFFSET ADJUST F34 -31~0~+31 0 *FIX BUS SET UP
SHP-AV (OFFSET) SHARPNESS OFFSET AV F35 -31~0~+31 +5 FIX
SHP-YUV (OFFSET) SHARPNESS OFFSET YUV F36 -31~0~+31 0 FIX
SHP-P (OFFSET) SHARPNESS OFFSET PAL F37 -31~0~+31 0 FIX
SHP-S (OFFSET) SHARPNESS OFFSET SECAM F38 -31~0~+31 -5 FIX
SHP-N4 (OFFSET) SHARPNESS OFFSET N443 F39 -31~0~+31 0 FIX
SHP-N3 (OFFSET) SHARPNESS OFFSET N358 F40 -31~0~+31 0 FIX
TINT-AV (OFFSET) TINT OFFSET AV F41 -63~0~+63 0 *FIX BUS SET UP
TINT-ADJ (OFFSET) TINT OFFSET ADJUST F42 -63~0~+63 0 *FIX BUS SET UP
TINT-YUV-ADJ TINT YUV OFFSET ADJUST F43 -63~0~+63 0 FIX
(OFFSET)
R-R (OFFSET) R-DRIVE OFFSET WHEN WHITE F44 -63~0~+63 +8 *FIX BUS SET UP
TEMP IS RED
B-R (OFFSET) B-DRIVE OFFSET WHEN WHITE F45 -63~0~+63 -10 *FIX BUS SET UP
TEMP IS RED
R-B (OFFSET) R-DRIVE OFFSET WHEN WHITE F46 -63~0~+63 -3 *FIX BUS SET UP
TEMP IS BLUE
B-B (OFFSET) B-DRIVE OFFSET WHEN WHITE F47 -63~0~+63 +16 *FIX BUS SET UP
TEMP IS BLUE
DT WIDEBAND CHROMA TRAP F48 0(NARROW)/ 0 FIX
(FOR SECAM) 1(WIDE)

21HF2-SS
3 – 6
SETTING MODE (SECOND STAGE)
EEPROM ITEMS FUNCTION OSD DATA LENGTH INITIAL DATA FIX/ADJ/AUTO REMARK
DT-P WIDEBAND CHROMA TRAP F49 0(NARROW)/ 0 FIX
(FOR SECAM) PAL 1(WIDE)
DT-S WIDEBAND CHROMA TRAP F50 0(NARROW)/ 1 FIX
(FOR SECAM) SECAM 1(WIDE)
DT-N4 WIDEBAND CHROMA TRAP F51 0(NARROW)/ 0 FIX
(FOR SECAM) N443 1(WIDE))
DT-N3 WIDEBAND CHROMA TRAP F52 0(NARROW)/ 0 FIX
(FOR SECAM) N358 1(WIDE)
TRAP CENTER VALUE OF CHROMA F53 0~3 2 FIX
TRAP
TRAP-P CENTER VALUE OF CHROMA F54 0~3 2 FIX
TRAP PAL
TRAP-S CENTER VALUE OF CHROMA F55 0~3 2 FIX
TRAP SECAM
TRAP-N4 CENTER VALUE OF CHROMA F56 0~3 2 FIX
TRAP N443
TRAP-N3 CENTER VALUE OF CHROMA F57 0~3 2 FIX
TRAP N358
1W-TV VERT SYNC DETECTION MODE F58 ACCEPTABLE PERIOD: 0 FIX
FOR AV (1 WINDOW/2 WINDOW) 0(AUTOMATIC CHANGE)
1(FIX (WIDE))
1W-AV VERT SYNC DETECTION MODE F59 ACCEPTABLE PERIOD: 1 FIX
FOR TV (1 WINDOW/2 WINDOW) 0(AUTOMATIC CHANGE)
1(FIX (WIDE))
V-FREE (NO SYNC) SET VERTICAL TO FORCED F60 0(NORMAL)/ 0 FIX
FREE RUN MODE 1(FREERUN)
AFC2 (NO SYNC) HORIZONTAL AFC2 GAIN F61 0(NORMAL)/1(DOWN) 0 FIX
GAMMA GAMMA CORRECTION QTY F62 0~3 0 FIX
BS-D/C BLACK STRETCH CONTROL F63 0~15 10 FIX
LEVEL
BS-GAIN BLACK STRETCH LEVEL F64 0(NORMAL)/1(DOWN) 0 FIX
OM-DET OVER MODULATION DETECT F65 0(OFF)/1(ON) 0 FIX
SL-TV SLICE LEVEL OF SYNC F66 0~7 2 FIX
DETECTION TV
SL-AV SLICE LEVEL OF SYNC F67 0~7 4 FIX
DETECTION AV
SL-YUV SLICE LEVEL OF SYNC F68 0~7 4 FIX
DETECTION YUV
VD2/VD1/AS/ VD2 & VD1-VERT SYNC DETECT F69 0~15 6 FIX
FBP-TV MIN WIDTH MSB & LSB-
FBP-FLYBACK PULSE SLICE
RESPECTIVELY, AS-TV/AV/YUV
SWITCH & CH CHANGE,
LEVEL (TV)
VD2/VD1/AS/ VD2 & VD1-VERT SYNC DETECT F70 0~15 14 FIX
FBP-AV MIN WIDTH MSB & LSB
RESPECTIVELY, AS-TV/AV/YUV
SWITCH & CH CHANGE,
FBP-FLYBACK PULSE SLICE
LEVEL (AV)
VD2/VD1/AS/ VD2 & VD1-VERT SYNC DETECT F71 0~15 14 FIX
FBP-YUV MIN WIDTH MSB & LSB
RESPECTIVELY, AS-TV/AV/YUV
SWITCH & CH CHANGE,
FBP-FLYBACK PULSE SLICE
LEVEL (YUV)
VDL COLOUR DIFF. INPUT PHASE ADJ F72 0~3 0 FIX
UDL COLOUR DIFF. INPUT PHASE ADJ F73 0~3 0 FIX
AUTO-SCM-KIL-TV SECAM COLOUR KILLER F74 0~3 1 FIX
SENSITIVITY (TV)
SCM-YDL SECAM Y-DELAY F75 0/1 0 FIX
SECAM-BGP INTERNAL SECAM BGP TIMING F76 0/1 0 FIX

21HF2-SS
3 – 7
SETTING MODE (SECOND STAGE)
EEPROM ITEMS FUNCTION OSD DATA LENGTH INITIAL DATA FIX/ADJ/AUTO REMARK
N45 INHIBIT 50Hz NTSC 4.43 F77 0(NORMAL)/ 0 FIX
1(INHIBIT)
DL-REV NON INTERLACE PHASE F78 0(NORMAL)/ 0 FIX
1(REVERSE)
DL-OUT VD PULSE FOR MCU WHEN F79 0(312.5H)/ 0 FIX
312/313H MODE IS ENABLED 1(312/313H)
TXT-POS-H TELETEXT HORIZONTAL F80 0~63 30 FIX
(TELETEXT) POSITION
TXT-POS-V TELETEXT VERTICAL POSITION F81 0~63 34 FIX
(TELETEXT)
OSD-POS OSD POSITION F82 0~127 9 FIX
CP CHARGE PUMP F83 0(FAST TUNING)/ 1 FIX
1(MODERATE SPEED
TUNING)
SMALL-SURR SURROUND MODE SELECT F84 0(EALA EFFECT 0 FIX
(S-CTRL) LARGE)/1(EALA EFFECT
SMALL)
SUB-BASS SUB BASS CONTROL F85 0(0dB), 1(-1dB), 2(-2dB), 6 FIX
(S-CTRL) 3(-3dB), 4(0dB), 5(+1dB),
6(+2dB), 7(+3dB)
SUB-TREB) SUB TREBLE CONTROL F86 0(0dB), 1(-1dB), 2(-2dB) , 0 FIX
(S-CTRL) 3(-3dB), 4(0dB), 5(+1dB),
6(+2dB), 7(+3dB)
AGC-ADJ (S-CTRL) AGC LEVEL ADJUST F87 0(AGC Off),1(300mVrms), 0 FIX
2(400mVrms),3(500Vrms)
,/4(600mVrms)
AGC-SW-OFF NICAM AGC SWITCH OFF F88 0(DISABLE, FIX 1 FIX
(NICAM) GAIN), 1(ENABLE)
AGC-GAIN-ADJ NICAM AGC GAIN ADJUST F89 0~31 16 FIX
(NICAM)
FM-LEVEL-ADJ FM LEVEL ADJUST F90 -15~0~+15 0 FIX
(NICAM)
IGR-LEVEL-ADJ IGR LEVEL ADJUST F91 -15~0~+15 +1 FIX
(NICAM)
NICAM-BG-LVL- NICAM B/G LEVEL ADJUST F92 -15~0~+15 -2 FIX
ADJ(NICAM)
NICAM-I-LVL-ADJ NICAM I LEVEL ADJUST F93 15~0~+15 +3 FIX
(NICAM) DETECTION YUV
NICAM-DK-LVL- NICAM D/K LEVEL ADJUST F94 15~0~+15 -1 FIX
ADJ(NICAM)
NICAM-LOW-ERR- NICAM LOWER ERROR LIMIT F95 0~255 35 FIX
LIM (NICAM)
NICAM-UPP-ERR- NICAM UPPER ERROR LIMIT F96 0~255 70 FIX
LIM (NICAM)
IGR-GAIN-ADJ IGR GAIN ADJUST F97 -6~0~+7 0 FIX
(IGR) MIN WIDTH MSB & LSB
FM-ID-SPEED FM SOUND IDENTIFICATION F98 0(SLOW)/1(MEDIUM)/ 1 FIX
(NICAM) MODE 2(FAST)/3(OFF)
NICAM-AUTO- NICAM AUTO DETECTION F99 0(MUTE)/1(DEMUTE) 0 FIX
MUTE
ANA-OSD RGB INPUT F100 0(DIGITAL)/1(ANALOG) 0 FIX
AUTO-SCM-KIL- SECAM COLOUR KILLER F101 0~3 1 FIX
AV-YUV SENSITIVITY (AV/YUV)
AFC1-GAIN-TV MSB OF HORIZONTAL AFC GAIN1 F102 0(NORMAL)/1(x2)/ 0 FIX
(TV) 2(x1.5)/3(3.5)
AFC1-GAIN-AV MSB OF HORIZONTAL AFC GAIN1 F103 0(NORMAL)/1(x2)/ 3 FIX
(AV) 2(x1.5)/3(3.5)
AFC1-GAIN-YUV MSB OF HORIZONTAL AFC GAIN1 F104 0(NORMAL)/1(x2)/ 3 FIX
(YUV) 2(x1.5)/3(3.5)
CON-REDUCE CONTRAST (PICTURE LEVEL) F105 0(0%)~1(25%)~2(50%) 0 FIX
CONTROL
TAKE-OFF-TV TAKEOFF/BPF OF CHROMA BPF 106 0(BPF)/1(TAKEOFF) 1 FIX
PROCESSING TV

21HF2-SS
3 – 8
SETTING MODE (SECOND STAGE)
EEPROM ITEMS FUNCTION OSD DATA LENGTH INITIAL DATA FIX/ADJ/AUTO REMARK
TAKE-OFF-AV TAKEOFF/BPF OF CHROMA BPF F107 0(BPF)/1(TAKEOFF)/ 0 FIX
PROCESSING AV
TAKE-OFF-YUV TAKEOFF/BPF OF CHROMA BPF F108 0(BPF)/1(TAKEOFF) 0 FIX
PROCESSING YUV
C-ANGLE CHROMA MODULATION ANGLE F109 0 (103deg) / 1 (95deg) 1 FIX
(103 DEG/ 95 DEG) 1(312/313H)
STD-BY-WO- PICTURE BLACK LEVEL (BRIGHT) F110 0~255 255 FIX BUS SET UP
BRIGHT CONTROL-POWER ON TO STDBY
AC-FAIL-WO- PICTURE BLACK LEVEL (BRIGHT) F111 0~255 255 FIX
BRIGHT CONTROL-AC FAILURE
FORCED-SCM-KIL- FORCED SECAM COLOUR F112 0~3 2 FIX
TV KILLER SENSITIVITY (TV)
FORCED-SCM-KIL- FORCED SECAM COLOUR F113 0~3 2 FIX
AV-YUV KILLER SENSITIVITY (AV/YUV)
R-Y Adj. COLOUR EDGE IMPROVEMENT F114 0(DISABLE)/ 0 FIX BUS SET UP
(S-CTRL) 1(ENABLE)
V-Demute-Delay VIDEO DEMUTE DELAY F115 0~255 0 FIX
S-Demute-Delay SOUND DEMUTE DELAY F116 0~255 0 FIX
MER S-BOOSTER FREQ. F117 0~255 70 FIX
CHARACTERISTIC CONTROL
MEL1 S-BOOSTER LEVEL1 F118 0~255 150 FIX
MEL2 S-BOOSTER LEVEL2 F119 0~255 156 FIX
MEL3 S-BOOSTER LEVEL3 F120 0~255 163 FIX
MEL4 S-BOOSTER LEVEL4 F121 0~255 165 FIX
MEL5 S-BOOSTER LEVEL5 F122 0~255 170 FIX
MEL6 S-BOOSTER LEVEL6 F123 0~255 180 FIX
S-St-Point S-BOOSTER START POINT F124 0~60 21 FIX
S-Sp-Point S-BOOSTER STOP POINT F125 0~60 60 FIX
S-Step S-BOOSTER STEP F126 -15~0~+15 7 FIX
Pow-Storage CONTRAST/BRIGHTNESS F127 0(DISABLE)/ 0 *FIX BUS SET UP
INCREASE GRADUALLY 1(ENABLE)
S-B-BASS S-BOOSTER BASS LIMITER F128 -30~0~+30 +15 FIX
(WHEN S-BOOSTER ON)
S-B-TREB S-BOOSTER TREBLE LIMITER F129 -30~0~+30 +15 FIX
(WHEN S-BOOSTER ON)
S-BASS S-BOOSTER BASS LIMITER F130 -30~0~+30 +30 FIX
(WHEN S-BOOSTER OFF)
S-TREB S-BOOSTER TREBLE LIMITER F131 -30~0~+30 +30 FIX
(WHEN S-BOOSTER OFF)

21HF2-SS
3 – 9
3. ADJ ITEM: BUS SET UP (1ST & 2ND STAGE SERVICE DATA)
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
*** 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.
SERVICE ITEMS
F29 COL-AV (OFFSET) 0
F34 COL-ADJ (OFFSET) +5
F41 TINT-AV (OFFSET) +3
F42 TINT-ADJ (OFFSET) -8
F44 R-R (OFFSET) +6
F45 B-R (OFFSET) -9
F46 R-B (OFFSET) -4
F47 B-B (OFFSET) +5
F110 STD-BY-WO-BRIGHT 100
F114 R-Y Adj 1
F127 POWER-STORAGE 1

21HF2-SS
3 – 10
4. ADJ ITEM: OPTION SET UP (4TH STAGE SERVICE DATA)
5. ROM CORRECTION
Please do ROM-CORRECTION.
The data is as below.
SERVICE ITEMS
O01 HTL MODE 0 (OFF) / 1 (ON) 0
O02 HTL-POS 0~99,— —
O03 HTL-VOL 0~60,— —
O04 VIF 0 (38.0) / 1 (38.9) 1
O05 SECAM 0 (DISABLE) / 1 (ENABLE) 1
O06 N443(RF) 0 (DISABLE) / 1 (ENABLE) 1
O07 N358(RF) 0 (DISABLE) / 1 (ENABLE) 0
O08 FORCE-COL 0 (DISABLE) / 1 (ENABLE) 0
O09 S-SYS 1 (BG ONLY) ~ 15 (ALL) 7
O10 AV 0 (DISABLE) / 1 (ENABLE) 1
O11 AV2 0 (DISABLE) / 1 (ENABLE) 0
O12 YUV 0 (DISABLE) / 1 (ENABLE) 0
O13 S-CTRL 0 (DISABLE) / 1 (ENABLE) 0
O14 NICAM 0 (DISABLE) / 1 (ENABLE) 0
O15 A2 0 (DISABLE) / 1 (ENABLE) 0
O16 TEXT 0 (DISABLE) / 1 (ENABLE) 0
O17 BIL 0 (DISABLE) / 1 (ENABLE) 0
O18 LANG 1~255 55
O19 SERCH-SP 1(350)~2(450)~3(550)~4(650)~5(750) 3
O20 R/C MENU 0 (ENABLE) / 1 (DISABLE) 1
O21 LED-CONT 0 (ONE LED) / 1 (TWO LED) 0
O22 S-BOOSTER 0 (DISABLE) / 1 (ENABLE) 0
O23 SHARP-LOGO 0 (DISABLE) / 1 (ENABLE) 0
Soft Ver. V2.11
ROMCORRECT1
ROMCORRECT2
EEPROM Data
Slave Sub.
$A2 $76 C1 ROMCORRECT1 Permission
$A2 $77 90 ROMCORRECT1 Address(H)
$A2 $78 6B ROMCORRECT1 Address(L)
$A2 $79 16 ROMCORRECT1 Code length
$A2 $7A E7 ROMCORRECT1 Checksum
$A2 $7B FF ROMCORRECT2 Permission
$A2 $7C FF ROMCORRECT2 Address(H)
$A2 $7D FF ROMCORRECT2 Address(L)
$A2 $7E FF ROMCORRECT2 Code length
$A2 $7F FF ROMCORRECT2 Checksum
$A2 $80-87 37 0B 0A B7 08 07 A5 58 ROMCORRECT1 Data
$A2 $88-$8F D0 03 4C 34 90 F7 C4 03 ROMCORRECT1 Data
$A2 $90-$97 4C 71 90 4C 6E 90 FF FF ROMCORRECT1 Data
$A2 $98-$9F FF FF FF FF FF FF FF FF ROMCORRECT1 Data
$A2 $A0-$A7 FF FF FF FF FF FF FF FF ROMCORRECT2 Data
$A2 $A8-$AF FF FF FF FF FF FF FF FF ROMCORRECT2 Data
$A2 $B0-$B7 FF FF FF FF FF FF FF FF ROMCORRECT2 Data
$A2 $B8-$BF FF FF FF FF FF FF FF FF ROMCORRECT2 Data
If AC_DET turn ON & Protect timing is ended, Port refresh & IIC Bus are prohibited.
Data Comment
MCU: M37150MA-062FP

21HF2-SS
3 – 11
1. Please set the MCL to MCL1.
2. After set the MCL , please set the INITIAL SETTING for each models.
INITIAL4:For Middle-East ( All Channel Sound System are set to B/G )
NOTE: PLL DATA OF ABOVE FREQ SHOULD TAKE THE ACCOUNT OF PIF SETTING IN SERVICE OPTION O04 (VIF) BEFORE STORING INTO
EEPROM.
MCL1 (HEX AE) MCL1 (HEX AE)
CH-NO Fv (MHz) SOUND SYS CH-NO Fv (MHz) SOUND SYS
036 168.25 B/G
1 48.25 B/G 37
2 62.25 B/G 38 294.25 B/G
3 77.25 D/K 39 463.25 B/G
4 175.25 B/G 40
5 182.25 B/G 41 647.25 B/G
6 183.25 D/K 42 633.25 B/G
7 191.25 D/K 43 679.25 B/G
8 196.25 B/G 44 174.25 B/G
9 199.25 M 45 175.55 B/G
10 210.25 B/G 46
11 224.25 B/G 47
12 471.25 B/G 48
13 487.25 I 49
14 503.25 B/G 50
15 575.25 B/G 51
16 583.25 B/G 52
17 599.25 B/G 53
18 621.25 M 54
19 639.25 D/K 55
20 703.25 B/G 56
21 735.25 I 57
22 767.25 B/G 58
23 815.25 B/G 59
24 855.25 I 60
25 855.25 B/G 61
26 55.25 M 62
27 83.25 M 63
28 183.25 M 64
29 193.25 M 65
30 217.25 M 66
31 471.25 M 67
32 477.25 M 68
33 693.25 M 69
34 885.25 M 70
35 112.25 B/G

21HF2-SS
3 – 12
6. SHIPPING SETTING & CHECKING
(1)The following default data has been factory-set for the EEPROM follow by INITIAL DATA selected.
FACTORY SETTING BY MODEL
(Reference: Geomagnetism Adjustment)
*NOTE FOR OSD TYPE
5 :ENGLISH/CHINESE/FRENCH/ARABIC/MALAY
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
COLOUR SYSTEM ALL CH AUTO
SKIP ALL CH OFF
CONTRAST 60
COLOUR 0
BRIGHTNESS 0
TINT 0
SHARPNESS 0
WHITE TEMP 0
INITIAL LANGUAGE SOUND SYSTEM
4 (HEX 97) ARABIC B/G
MODEL MAGNETIC FIELD(V, H) nT BACKGROUND LANGUAGE S-SYS LANG QTY
MIDDLE EAST 30,000 20,000 18000K ARABIC B/G 5

21HF2-SS
3 – 13
[2] ADJUSTMENT
1. PIF ADJUSTMENT
No. Adjustment point Adjustment condition/procedure Waveform or others
1 Tuner IFT
( PRESET )
1. Get the tuner ready to receive the CH. E - 9 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 80dBV.
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 wave-
form.
6.Adjust the tuner IF coil to obtain the waveform as shown in Fig.
2.
NOTE: Be sure to keep the tuner cover in position during this
adjustment.
2 RF-AGC TAKE
OVER POINT
ADJUSTMENT
(I2C BUS CON-
TROL)
(AUTO & MANUAL
ADJ)
1. Receive "PAL COLOUR BAR" signal.
•Signal Strength: 56 ±1 dBV (75 ohm open)
2. Connect the oscilloscope to TP201 (Tuner’s AGC Terminal) as
shown in 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 63~67dBV and make sure
there is no noise.
5. Turn up the input signal to 90~95 dBV to be sure that there is
no cross modulation beat.
* for Auto ADJ
1) Receive “PAL COLOUR BAR” signal.
signal strength: 56 1dBV(75 ohm open)
2) Go to service mode.
3) Go to service data V01, press R/C to
oper ate auto key (Hex C1) and confirm the
“OK” display on the screen.
4) If appear NG, increase data some step and
pls repeat step 2.
5) proceed step 4 & 5 in manual mode.
E-9 CH
PC
10k
100k
1n60
75ohm
IF OUT
-1.5+/-0.8dB
1000p
1000p
Os cillos cope
Fig.1
Fig.2
Bias box: About4.5 V
Os cillos cope
0.1V
TV Set
Bias box
TP201+
+
-
-
Fi
g
.3-1

21HF2-SS
3 – 14
2. PURITY ADJUSTMENT
No. Adjustment point Adjustment condition/procedure Waveform or others
1 PURITY ADJ. 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 3-12)
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 micro
scope. Adjust the landings to the A rank requirement.
5. Orient the raster rotation to 0 eastward..
6. Tighten up the deflection coil screws .
•Tightening torque: 108 20 N (11 ±2 kgf)
7. Make sure the CRT corners landing meet the A rank require
ments. If not, stick the magnet sheet to correct it.
NOTE: Note: This adjustment must be done after warming up the
unit for 30 minutes or longer with a beam current over
700 μA.
NOTE: Note: Set the service mode by JA304 & JA307 (short)
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.
*Press R/C RGB key for 1 second in NORMAL
MODE, the colour will change to RGB mono
colour mode.
Signal-colour
screen cleared
GREEN
ONLY
BLUE
ONLY
RED
ONLY
ab
A
B
A
30mm 30mm
B
A=B
A=B
Rank "A"
(on the right of the C R T)
Rank "A"
(on the left of the C R T)
Fig. 1-1
Fig. 1-2
Fig. 1-3

21HF2-SS
3 – 15
3. CONVERGENCE ADJUSTMENT
No. Adjustment point Adjustment condition/procedure Waveform or others
1 CONVERGENCE
ADJ.
( To be done after
the purity adjust-
ment.)
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 an gle 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 fol
lowing 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.
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
20mm
Lacquer
Purit
y
ma
g
net
RGB
BGR
R
G
B
R
G
B
B
G
R
B
G
R
RGB
BGR
Lacquer
Wedge "a"
Wedge
"b"
Wedge
"c"
About
100Deg
About
100Deg
Fig. a
Fig. b
Fig. c
Fig. d

21HF2-SS
3 – 16
4. H-VCO, VIF-VCO & S-TRAP fo ADJUSTMENT
No. Adjustment point Adjustment condition/procedure Waveform or others
1 H-VCO ADJ ADJ.
( I2C BUS CON-
TROL)
(AUTO & MANUAL
ADJ)
(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.
2 VIF-VCO ADJ.
( I2C BUS CON-
TROL)
(AUTO & MANUAL
ADJ)
(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 ±1 V.
(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.
NOTE: Note : This adjustment must be done after aging at least
3 minutes.
3 S-TRAP fo ADJ
( I2C BUS CON-
TROL)
(AUTO & MANUAL
ADJ)
(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.

21HF2-SS
3 – 17
5. SCREEN, WHITE BALANCE, SUB-BRIGHTNESS & SUB-CONTRAST (1 ) ADJUSTMENT
No. Adjustment point Adjustment condition/procedure Waveform or others
1 SCREEN
ADJUSTMENT
( I2C BUS CON-
TROL)
1) In window pattern signal condition.
2) Go to service mode, then select V00.
3) 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, Sub-Brightness V06 auto
switch to 127..
Y-mute & Vertical off, screen will be in vertical cutoff condition.
4) 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 colour, in this condition between R-C & G-C & B-C, fix the
data of the colour appear in cut-off line and adj the other two
cutoff data (Note1) so that cut-off line colour become white.
5) 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 Y-
mute & V-cut so that picture appear in normal mode.
Note 1:
R-CUTOFF(R-C)UP RC key "1"(HEX 80)
R-CUTOFF(R-C)DOWN RC key "4"(HEX 20)
G-CUTOFF(G-C)UP RC key "2"(HEX 40)
G-CUTOFF(G-C)DOWN RC key "5"(HEX A0)
B-CUTOFF(B-C)UP RC key "3"(HEX C0)
B-CUTOFF(B-C)DOWN RC key "6"(HEX 60)
R-DRIVE(R-D)UP RC key "7"(HEX E0)
R-DRIVE(R-D)DOWN RC key
"Flashback"(HEX E4)
B-DRIVE(B-D)UP RC key "8"(HEX 10)
B-DRIVE(B-D)DOWN RC key "0"(HEX 50)
2 WHITE BALANCE
ADJ
(to be done after
screen adj)
( I2C BUS CON-
TROL)
1) WHITE (HIGH BEAM) ( In Window Pattern Signal) First use
Minolta Colour Analyzer CA100, let the gun point at Dark White
position ( as drawing attach), Adj V06 until LUMINANCE Y
become 5 cd/m2, then let the gun point at White position ( as
drawing attach), Adj V04 until LUMINANCE Y become 200 cd/
m2, Adj the R-D & B-D until the axis of colour temperature
become.
**X=255,Y=255 18000 K
2) DARK WHITE (LOW BEAM) (In Window Pattern Signal)Let the
gun point at Dark White position, if the colour temperature data
shift away from the data adjusted in step 1, adjust R-C,G-C &
B-C but between them, first colour appears in Screen adj item
1)-4 is fixed, adj the other two so that to obtain the similar axis
as above .
**Repeat step 1 & 2 to get a regulated position.
NOTE: Signal using W/B Pattern Generator
SX-1006 (IWATSU) or equivalent.Win-
dow Pattern Signal output level are as
above:
50% IR E5.5% IR E 9.5% IR E
White Dark
White
WINDOW PATTERN SIGNAL