Sharp 14BM2 User manual

1
14BM2, 14BM2S/G
20BM2, 20BM2S/G
21BM2, 21BM2S/G
SERVICE MANUAL
14BM2, 14BM2S/G
20BM2, 20BM2S/G
21BM2, 21BM2S/G
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.
ËMulti 18 Systems
ËFull Auto Channel Preset and Auto Channel Skip
Ë100-CH Program Memory
ËHigh Contrast Picture
ËBlack Stretch Circuit
ËCATV (Hyper Band) Ready
〈Used Frequency Synthesizer Tuner〉
ËHotel Mode
ËOn Timer/Sleep Timer/Reminder Timer
ËColour Comb Filter Function (NTSC only)
ËBlue Back Noise Mute
ËFront AV-In & Rear AV-In/Out Terminals
ËAVL Function
ËEnglish/Chinese/Malay/France/Russia/Arabic OSD
»SPECIFICATIONS ...........................................2
»IMPORTANT SERVICE NOTES ......................2
»ADJUSTMENT PRECAUTIONS .....................3
»HOTEL MODE APPLICATION NOTE............15
»TROUBLE SHOOTING TABLE......................15
»SOLID STATE DEVICE BASE DIAGRAM .....18
»CHASSIS LAYOUT ........................................19
»BLOCK DIAGRAM.........................................22
»WAVEFORMS ...............................................25
»DESCRIPTION OF SCHEMATIC DIAGRAM ..27
»SCHEMATIC DIAGRAM
■MAIN UNIT ...............................................28
■CRT UNIT.................................................34
»PRINTED WIRING BOARD ASSEMBLIES...36
»REPLACEMENT PARTS LIST
■ELECTRICAL PARTS...............................41
■MISCELLANEOUS PARTS ......................46
■SUPPLIED ACCESSORIES.....................46
■PACKING PARTS .....................................46
■CABINET PARTS .....................................46
Page Page
CONTENTS
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
WARNING
COLOURTELEVISION
Chassis No. UA-1
S00K414BM2S//
14BM2, 14BM2S/G 20BM2, 20BM2S/G
21BM2, 21BM2S/G
FEATURE
SERVICE MANUAL COLOUR TELEVISION
MODELS 14BM2, 14BM2S/G, 20BM2, 20BM2S/G, 21BM2, 21BM2S/G

2
2-1 2-2
14BM2, 14BM2S/G 20BM2, 20BM2S/G 21BM2, 21BM2S/G
SPECIFICATIONS
Convergence .............................................................................. Self Convergence System
Focus .......................................................................... Electrostatic Focus High Bi-Potential
Sweep Deflection................................................................................................... Magnetic
Intermediate Frequencies
Picture IF Carrier ............................................................................................... 38.9 MHz
Sound IF Carrier Frequency
5.5 MHz .......................................................................................................... 33.4 MHz
6.0 MHz .......................................................................................................... 32.9 MHz
6.5 MHz .......................................................................................................... 32.4 MHz
Colour Sub-Carrier Frequency..................................................................... 34.47 MHz
Power Input.....................................................................................110 - 240V, AC50/60 Hz
Power Consumption
21BM2 ....................................................................................................................88 W
20BM2 ....................................................................................................................87 W
14BM2 ....................................................................................................................68 W
Audio Power Output Rating .............................................................................. 5.0W (RMS)
Speaker
Size 21BM2/20BM2 ..............................................................6 ×12 cm Elliptic (2 pcs.)
14BM2.............................................................................5 ×9 cm Elliptic (2 pcs.)
Voice Coil Impedance ...........................................................................6 ohms at 400 Hz
Aerial Input Impedance
VHF/UHF ......................................................................................75 ohms Unbalanced
Receiving System .......................................................... CCIR/PAL B/G, D/K, I/SECAM
NTSC 3.58/4.43 MHz (thru AV)
Tuner Ranges
»VHF-Channels...........................................E1 (48.25 MHz) thru E12 (224.25 MHz)
C1 (49.75 MHz) thru C12 (216.25 MHz)
S1 (105.25 MHz) thru S41 (463.25 MHz)
»UHF-Channels ......................................E21 (471.25 MHz) thru E69 (855.25 MHz)
C13 (471.25MHz) thru C57 (863.25 MHz)
Dimensions
21BM2 ...............................................................................................Width: 642.0 mm
Height: 475.0 mm
Depth: 477.0 mm
Weight (approx.): 21.0 kg
20BM2 ...............................................................................................Width: 642.0 mm
Height: 475.0 mm
Depth: 480.0 mm
Weight (approx.): 19.0 kg
14BM2 ...............................................................................................Width: 496.0 mm
Height: 355.0 mm
Depth: 365.0 mm
Weight (approx.):9.2 kg
Cabinet Material ................................................................................................. All Plastics
Specifications are subject to change without prior notice.
IMPORTANT SERVICE NOTES
Maintenance and repair of this receiver should be done by
qualified service personnel only.
SERVICING OF HIGHVOLTAGE SYSTEM AND
PICTURETUBE
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
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. 14BM2 : When repairing the circuit,be sure not to increase the high volt-
age to more than 25.5 kV (at beam 0.1 µA) for the set.
20BM2 : When repairing the circuit,be sure not to increase the high volt-
age to more than 28.0 kV (at beam 0.1 µA) for the set.
21BM2 : When repairing the circuit,be sure not to increase the high volt-
age to more than 28.0 kV (at beam 0.1 µA) for the set.
2. 14BM2 : To keep the set in a normal operation,be sure to make it function on
22.8 kV ±1.5 kV (at beam 800 µA) in the case of the set. The set has
been factory - Adjusted to the above-mentioned high voltage.
20BM2 : To keep the set in a normal operation,be sure to make it function on
24.5 kV ±1.5 kV (at beam 1,100 µA) in the case of the set. The set has
been factory - Adjusted to the above-mentioned high voltage.
21BM2 : To keep the set in a normal operation,be sure to make it function on
24.8 kV ±1.5 kV (at beam 1,100 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.
BEFORE RETURNINGTHE 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,iso-
lation resistor-capacity networks, mechanical insulators etc.

3-1 3-2
3
14BM2, 14BM2S/G 20BM2, 20BM2S/G 21BM2, 21BM2S/G
ADJUSTMENT PRECAUTIONS
This model’s setting are adjusted in two different ways: though the I2C bus control and in the
conventional analog manner.The adjustments via the I2C bus control include preset-only
items and variable data.
1. Setting the service mode by the microprocessor.
1Short JA122 & JA124 for 1 second and release to switch to the service mode position,
and the microprocessor is in input mode.(Adjustment through the I2C bus control). (Use
JWS Key to set as well).
2Press the CH DOWN / UP key on the remote controller to get ready to select the mode
one by one.
3Press the CH DOWN / UP key on the remote controller to select the modes reversibly
one by one.
4Using the VOLUME UP/ DOWN key on the remote controller, the data can be modified.
5Short JA122 & JA124 for 1 second and release to switch to the normal mode (OFF)
position, and the microprocessor is in out of the service mode.
2. Factory Presetting.
1Short JA122 & JA124 for 1 second and release to switch to the service mode position
and turn on the main power switch.Initial values are automatically preset, only when a
new EEPROM is used (Judge with the first 4 bytes).
2The initial data are preset as listed in pages 4, 5 & 6.
3Make sure the data need modify or not (Initial data).
Note: Once the chassis has been assembly together and ready to be POWER ON for the
FIRSTTIME, make sure to short JA122 & JA124 switch to the service mode posi-
tion first and then turn on the main power switch. (See 2- 1 above).
Precaution: If haven’t done this initiation, it may possibly generate excessive Beam
current.
3. For reference please check with memory map
(UA1 Series type RH-IX3368CE Attachment)
ËSERVICE MODE
(1)In the Service Mode, Key is used to select the mode in the following order.
AGC &
GEOMETRIC
MODE
↓
AGCTAKE OVER POINT (AGC)
↓
VERTICAL SLOPE (V-LIN)
↓
VERTICAL AMP (V-AMP)
↓
VERTICAL SHIFT (V-CENT)
↓
HORIZONTAL SHIFT (H-CENT)
↓
S-CORRECTION (S-COR)
WHITE POINT
ADJ.
MODE
↓
W.P. RED STD. W.T. (DRI-RS)
↓
W.P. GREEN STD. W.T. (DRI-GS)
↓
W.P.BLUE STD. W.P. (DRI-BS)
↓
W.P. RED COOL W.P. (DRI-RC)
↓
W.P. GREEN COOL W.P. (DRI-GC)
↓
W.P. BLUE COOL W.P. (DRI-BC)
↓
W.P. RED WARM W.P. (DRI-RW)
↓
W.P. GREEN WARM W.P. (DRI-GW)
↓
W.P. BLUE WARM W.P. (DRI-BW)
SUB
ADJ.
MODE
↓
MAX VOLUME (SUB-VOL)
↓
SUB CONTRAST (SUB-CON)
↓
SUB COLOUR (SUB-COL)
↓
SUB BRIGHTNESS (SUB-BRI)
↓
SUB TINT (SUB-TINT)
↓
SUB SHARPNESS (SUB-SHP)
↓
MAX HOTELVOLUME (HTL-VOL)
↓
HOTEL PROGRAM NO (HTL-PRG)
↓
OSD GRB REFERENCE (RGB)
↓
BLACK LEVEL OFFSET R (CUT-R)
↓
BLACK LEVEL OFFSET G (CUT-G)
↓
CATHODE DRIVE LEVEL (CDL)
FORWARD : CH DOWN KEY
REVERSE : CH UP KEY
* ( ) means OSD display.
FORWARD : CH DOWN KEY
REVERSE : CH UP KEY
AGC &
GEOMETRIC
MODE
WHITE POINT
ADJ.
MODE
SUB
ADJ.
MODE
Y-DELAY
ADJ.
MODE
MISC.
OPTION
MODE
IC
OPTION
MODE
OFFSET
ADJ.
MODE

4
4-1 4-2
14BM2, 14BM2S/G 20BM2, 20BM2S/G 21BM2, 21BM2S/G
Y-DELAY
ADJ.
MODE
↓
Y-D TIME FOR PAL (TV) (DL-PT)
↓
Y-D TIME FOR SECAM (TV) (DL-ST)
↓
Y-D TIME FOR N358 (TV) (DL-3T)
↓
Y-D TIME FOR N443 (TV) (DL-4T)
↓
Y-D TIME FOR B/W (TV) (DL-TV)
↓
Y-D TIME FOR PAL (AV) (DL-PA)
↓
Y-D TIME FOR SECAM (AV) (DL-SA)
↓
Y-D TIME FOR N358 (AV) (DL-3A)
↓
Y-D TIME FOR N443(AV) (DL-4A)
↓
Y-D TIME FOR B/W (AV) (DL-AV)
*(Y-D :Y-DELAY)
OFFSET
ADJ.
MODE
↓
COLOUR OFFSET (PAL) (COL-OP)
↓
COLOUR OFFSET (SECAM) (COL-OS)
↓
COLOUR OFFSET (NTSC358) (COL-O3)
↓
COLOUR OFFSET (NTSC443) (COL-O4)
↓
SHARPNESS OFFSET (PAL) (SHP-OP)
↓
SHARPNESS OFFSET (SECAM) (SHP-OS)
↓
SHARPNESS OFFSET (NTSC358) (SHP-O3)
↓
SHARPNESS OFFSET (NTSC443) (SHP-O4)
IC
OPTION
MODE
↓
VERTICAL SCAN DISABLE(VSD)
↓
BLACK STRETCH (BKS)
↓
AUTO VOLUME LEVELING(AVL)
↓
FAST FILTER IF-PLL(FFI)
↓
ENABLE VERTICAL GUARD (EVG)
↓
EHT TRACKING MODE (EHT)
↓
OVERSCAN SWITCH OFF(OSO)
↓
AUTO COLOUR LIMIT(ACL)
↓
FORCED COLOUR LIMIT(FCO)
MISC.
OPTION
MODE
↓
SOUND SYSTEM M (S-M)
↓
SOUND SYSTEM DK (S-DK)
↓
SOUND SYSTEM I (S-I)
↓
SOUND SYSTEM BG (S-BG)
↓
PLAYBACK SECAM (P-SECAM)
↓
FE (RF) NTSC 3.58 (F-N358)
↓
FE (RF) NTSC 4.43 (F-N443)
↓
FE (RF) SECAM (F-SECAM)
↓
VIDEO MUTE AT IDENT LOSS (VMI)
↓
VIDEO MUTE AT PROGRAM
/SOURCE CHANGE (VMC)
↓
HOTEL MODE (HTL)
↓
REDUCED FM DEMODULATION
GAIN FOR BTSC SIGNAL (BTSC)
↓
A
A
↓
NUMBER OF EXT AV SOURCE (AV)
↓
FM WINDOW SELECTION (FMWS)
↓
SOUND MUTE BIT 0 (SM0)
↓
SOUND MUTE BIT 1 (SM1)
↓
THAI LANGUAGE (THA)
↓
ARABIC LANGUAGE (ARA)
↓
MALAY LANGUAGE (MAL)
↓
CHINESE LANGUAGE (CHI)
↓
FRENCH LANGUAGE (FRE)
↓
RUSSIAN LANGUAGE (RUS)
↓
FORCED V-SYNC SLICING LEVEL(FSL)
↓
SYNC OF OSD (HP2)
↓
TUNER SELECTION (CPT)
↓
B
B
↓
BILINGUAL(BIL)
↓
IF AGC SPEED BIT 0 (AGC0)
↓
IF AGC SPEED BIT 1 (AGC1)
↓
FOATime Constant-RF (FOA-FE)
↓
FOB Time Constant-RF (FOB-FE)
↓
FOATime Constant-AV (FOA-AV)
↓
FOB Time Constant-AV (FOB-AV)
USER DATA IN SERVICE MODE
* 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.
* In the service mode, the user data establish as below,
MODE USER DATA
CONTRAST MIN (1/60)
COLOUR MIN (1/60)
BRIGHTNESS MIN (1/60)
TINT MIN (1/60)
SHARPNESS MIN (1/60)
WHITE TEMP STANDARD
S-VOLUME MIN (1/60)
BLUE BACK OFF
C SYSTEM AUTO
S SYSTEM *1
*1 : For each CH, before
changing service mode
setting.
The flow of Mode lists as following,
* Direct Key-in Step1 Mode
RC COMMAND SERVICE-ITEM
FUNCTION AGC
CONTRAST DOWN V-LIN
COLOUR DOWN V-AMP
BRIGHTNESS DOWN V-CENT
TINT DOWN H-CENT
SHARPNESS DOWN EW / /
SYSTEM HB
BLUEBACK S-COR
TIMER SUB-VOL
CONTRAST UP SUB-CON
COLOUR UP SUB-COL
BRIGHTNESS UP SUB-BRI
TINT UP TINT SUB TINT
SHARPNESS UP SUB-SHP

5-1 5-2
5
14BM2, 14BM2S/G 20BM2, 20BM2S/G 21BM2, 21BM2S/G
After short JA122 & 124, and turn on the main power switch, read data from E2PROM
address 00H ~ 03H, and compare to the list below, if different, initialize the E2PROM.
Address : Data Address : Data
00H : 55H 02H : 43H
01H : 4FH 03H : A1H
EEPROM ITEMS OSD DATA LENGTH INITIAL DATA FIX/ADJ REMARK
AGCTAKE OVER POINT AGC 0~63 14 ADJ
VERTICAL SLOPE V-LIN 0~63 32 ADJ
VERTICAL AMPLITUDE V-AMP 0~63 32 ADJ
VERTICAL SHIFT V-CENT 0~63 32 ADJ
HORIZONTAL SHIFT H-CENT 0~63 32 ADJ
S-CORRECTION S-COR 0~63 0 FIX
WHITE POINT RED STD WHITE TEMP DRI-RS 0~63 32 FIX
WHITE POINT GREEN STD WHITE TEMP DRI-GS 0~63 32 ADJ
WHITE POINT BLUE STD WHITE TEMP DRI-BS 0~63 32 ADJ
WHITE POINT RED COOL WHITE TEMP DRI-RC 0~63 25 ADJ (DRI-RS)-7 *1
WHITE POINT GREEN COOL WHITE TEMP DRI-GC 0~63 32 ADJ (DRI-RS)-7 *1
WHITE POINT BLUE COOL WHITE TEMP DRI-BC 0~63 32 ADJ (DRI-BS)
WHITE POINT RED WARM WHITE TEMP DRI-RW 0~63 32 FIX (DRI-RS)
WHITE POINT GREEN WARM WHITETEMP DRI-GW 0~63 32 ADJ (DRI-GS)-7
WHITE POINT BLUE WARM WHITETEMP DRI-BW 0~63 32 ADJ (DRI-BS)-7
MAX VOLUME SUB-VOL 0~63 32 FIX
SUB CONTRAST SUB-CON 0~63 63 FIX
SUB COLOUR SUB-COL 0~63 32 ADJ
SUB BRIGHTNESS SUB-BRI 0~63 32 ADJ
SUB TINT SUB-TINT 0~63 32 ADJ
SUB SHARPNESS SUB-SHP 0~63 32 FIX
MAX HOTEL VOLUME HTL-VOL 0~63 32 FIX
HOTEL PROGRAM NUMBER HTL-PRG 0~99 OR>99FOR NONE 255 FIX
OSD GRB REFERENCE RGB 0~15 15 FIX
BLACK LEVEL OFF-SET R CUT-R 0~15 8 ADJ
BLACK LEVEL OFF-SET G CUT-G 0~15 8 ADJ
CATHODE DRIVE LEVEL CDL 0~15 0(2) FIX *2
Y-DELAY TIME FOR PAL(TV) [YD] DL-PT 0~15 12 FIX
Y-DELAY TIME FOR SECAM(TV) [YD] DL-ST 0~15 15 FIX
Y-DELAY TIME FOR N358 (TV) [YD] DL-3T 0~15 12 FIX
Y-DELAY TIME FOR N443 (TV) [YD] DL-4T 0~15 12 FIX
Y-DELAY TIME FOR B/W (TV) [YD] DL-TV 0~15 12 FIX
Y-DELAY TIME FOR PAL (AV) [YD] DL-PA 0~15 12 FIX
Y-DELAY TIME FOR SECAM (AV) [YD] DL-SA 0~15 15 FIX
Y-DELAY TIME FOR N358 (AV) [YD] DL-3A 0~15 12 FIX
Y-DELAY TIME FOR N443 (AV) [YD] DL-4A 0~15 12 FIX
Y-DELAY TIME FOR B/W (AV) [YD] DL-AV 0~15 12 FIX
COLOUR OFFSET (PAL) COL-OP 0~15 8 FIX
COLOUR OFFSET (SECAM) COL-OS 0~15 8 FIX
COLOUR OFFSET (NTSC358) COL-O3 0~15 4 FIX
COLOUR OFFSET (NTSC443) COL-O4 0~15 4 FIX
SHARPNESS OFFSET (PAL) SHP-OP 0~15 8 FIX
SHARPNESS OFFSET (SECAM) SHP-OS 0~15 4 FIX
Note :
Fixed data, please do not change without specific instruction.
*1:White point RED and GREEN COOL WHITETEMP for 18000 degree colour TEMP (SMEF
MODELS) MINUS 5. other models (123K degree colour temp) still same MINUS 7.
*2:CDL initial data=2 for all 20” & 21” only.
EEPROM ITEMS OSD DATA LENGTH INITIAL DATA FIX/ADJ REMARK
SHARPNESS OFFSET (NTSC358) SHP-O3 0~15 12 FIX
SHARPNESS OFFSET (NTSC443) SHP-O4 0~15 8 FIX
VERTICAL SCAN DISABLE VSD 0(DISABLE)/1(ENABLE) 0 FIX
BLACK STRETCH BKS 0(DISABLE)/1(ENABLE) 1 FIX
AUTOMATIC VOLUME LEVELING AVL 0(DISABLE)/1(ENABLE) 1 FIX
FAST FILTER IF-PLL FFI 0(DISABLE)/1(ENABLE) 0 FIX
ENABLE VERTICAL GUARD (RGB BLANKING) EVG 0(DISABLE)/1(ENABLE) 1 FIX ONLY BLK
EHT TRACKING MODE (HCO) EHT 0(DISABLE)/1(ENABLE) 1 FIX
OVERSCAN SWITCH OFF OSO 0(DISABLE)/1(ENABLE) 0 FIX
AUTO COLOUR LIMIT ACL 0(DISABLE)/1(ENABLE) 0 FIX
FORCED COLOUR LIMIT FCO 0(DISABLE)/1(ENABLE) 0 FIX
SOUND SYSTEM M S-M 0(DISABLE)/1(ENABLE) 0 FIX
SOUND SYSTEM DK S-DK 0(DISABLE)/1(ENABLE) 1 FIX
SOUND SYSTEM I S-I 0(DISABLE)/1(ENABLE) 1 FIX
SOUND SYSTEM BG S-BG 0(DISABLE)/1(ENABLE) 1 FIX
PLAYBACK SECAM P-SECAM 0(DISABLE)/1(ENABLE) 1 FIX
FE (RF) NTSC 3.58 F-N358 0(DISABLE)/1(ENABLE) 0 FIX
FE (RF) NTSC 4.43 F-N443 0(DISABLE)/1(ENABLE) 1 FIX
FE (RF) SECAM F-SECAM 0(DISABLE)/1(ENABLE) 1 FIX
VIDEO MUTE AT IDENT LOSS VMI 0(DISABLE)/1(ENABLE) 1 FIX
VIDEO MUTE AT PROGRAM/SOURCE CHANGE VMC 0(DISABLE)/1(ENABLE) 1 FIX
HOTEL MODE HTL 0(DISABLE)/1(ENABLE) 0 FIX
REDUCED FM DEMODULATOR GAIN FOR BTSC SIGNAL BTSC 0(DISABLE)/1(ENABLE) 0 FIX
NUMBER OF EXTERNAL AV SOURCE AV 0 FOR1 AV/1 FOR 2AV 1 FIX
FM WINDOW SELECTION FMWS 0(DISABLE)/1(ENABLE) 0 FIX
SOUND MUTE BIT 0 SM0 0(DISABLE)/1(ENABLE) 1 FIX
SOUND MUTE BIT 1 SM1 0(DISABLE)/1(ENABLE) 0 FIX
THAI LANGUAGE THA 0(DISABLE)/1(ENABLE) 0 FIX
ARABIC LANGUAGE ARA 0(DISABLE)/1(ENABLE) 1 FIX
MALAY LANGUAGE MAL 0(DISABLE)/1(ENABLE) 1 FIX
CHINESE LANGUAGE CHI 0(DISABLE)/1(ENABLE) 1 FIX
FRENCH LANGUAGE FRE 0(DISABLE)/1(ENABLE) 1 FIX
RUSSIAN LANGUAGE RUS 0(DISABLE)/1(ENABLE) 1 FIX
FORCED V-SYNC SLICING LEVEL FSL 0(DISABLE)/1(ENABLE) 0 FIX
SYNC OF OSD HP2 0(DISABLE)/1(ENABLE) 0 FIX
TUNER SELECTION (0:SHARP/ALPS;1:MURATA) CPT 0(DISABLE)/1(ENABLE) 0 FIX
BILINGUAL BIL 0(DISABLE)/1(ENABLE) 0 FIX
IF AGC SPEED BIT 0 AGC0 0(DISABLE)/1(ENABLE) 1 FIX
IF AGC SPEED BIT 1 AGC1 0(DISABLE)/1(ENABLE) 0 FIX
PHI-1 TIME CONSTANT (RF) FOA-FE 0(DISABLE)/1(ENABLE) 0 FIX
PHI-1 TIME CONSTANT (RF) FOB-FE 0(DISABLE)/1(ENABLE) 0 FIX
PHI-1 TIME CONSTANT (OFF AIR) FOA-AV 0(DISABLE)/1(ENABLE) 1 FIX
PHI-1 TIME CONSTANT (OFF AIR) FOB-AV
0(DISABLE)/1(ENABLE) 1 FIX

6
6-1 6-2
14BM2, 14BM2S/G 20BM2, 20BM2S/G 21BM2, 21BM2S/G
MCL1 MCL2
CH-No. Fv (MHz) SOUND SYS CH-No. Fv (MHz) SOUND SYS
0 0 590.25 B/G
1 48.25 B/G 1 46.25 B/G
2 62.25 B/G 2 64.25 B/G
3 77.25 D/K 3 86.25 B/G
4 175.25 B/G 4 95.25 B/G
5 182.25 B/G 5 138.25 B/G
6 183.25 D/K 6 175.25 B/G
7 191.25 D/K 7 182.25 B/G
8 196.25 B/G 8 189.25 B/G
9 199.25 M 9 196.25 B/G
10 210.25 B/G 10 209.25 B/G
11 224.25 B/G 11 216.25 B/G
12 471.25 B/G 12 B/G
13 487.25 I 13
14 503.25 B/G 14
15 575.25 B/G 15
16 583.25 B/G 16
17 599.25 B/G 17
18 621.25 M 18 527.25 B/G
19 639.25 D/K 19 847.25 B/G
20 703.25 B/G 20 48.25 B/G
21 735.25 I 21 175.25 B/G
22 767.25 B/G 22 210.25 B/G
23 815.25 B/G 23 224.25 B/G
24 855.25 I 24 575.25 B/G
25 855.25 B/G 25 599.25 B/G
26 55.25 M 26 767.25 B/G
27 83.25 M 27 183.25 M
28 183.25 M 28 193.25 M
29 193.25 M 29 112.25 B/G
30 217.25 M 30 168.25 B/G
31 471.25 M 31
32 477.25 M 32 294.25 B/G
33 693.25 M 33 463.25 B/G
34 34 174.95 B/G
35 112.25 B/G 35 175.55 B/G
36 168.25 B/G 36
37 37 599.25 B/G
38 294.25 B/G 38
39 463.25 B/G 39
40 40
41 647.25 B/G 41
42 663.25 B/G 42
43 679.25 B/G 43
44 174.95 B/G
45 175.55 B/G
INITIAL SETTING
(1)In service mode, After execute select POS 1, store the following tuning data in E2PROM. SHIPPING SETTING & CHECKING (1)The following default data has been factory-set for the E2PROM.
ITEMS DATA SETTING
LAST PROGRAM/CHANNEL 1
FLASHBACK PROGARM/CH 1
DIGIT 1
C-SYSTEM AUTO
S-SYSTEM *1
SKIP OFF
AFC ON
VOLUME 1
CONTRAST 60 (MAX)
COLOUR 0 (CENTER)
BRIGHTNESS 0 (CENTER)
TINT 0 (CENTER)
SHARPNESS 0 (CENTER)
WHITE TEMP STANDARD
REMINDER TIMER In-active, "--:--"
ON TIMER In-active, "--:--"
OFF TIMER In-active, "--:--"
LAST POWER POWER-ON
LANGUAGE *1
BLUE BACK MUTE OFF
HOTEL MODE OFF
0 CHANNEL SKIP ON
*1: Please refer defaults for LANGUAGE and SOUND SYSTEM per MODEL as follows,
*Note for OSD type
*OSD Lang. must be set in service mode, but it's better to write in E2PROM.
Language quantities are 6 as below:
English/Chinese/French/Arabic/Malay/Russian
MODEL Magnetic filed (V,H) nT Background Lang. S-SYS
F -10,000 40,000 12,300°K ENGLISH B/G
G 30,000 20,000 18,000°K ARABIC B/G
*G (Africa) -10,000 40,000 12,300°K ENGLISH B/G
Y 10,000 40,000 12,300°K ENGLISH B/G
FACTORY SETTINGS BY MODELS
(Reference: Geomagnetism Adjustment)
MODEL LANGAUGE SOUND SYSTEM
3 ENGLISH B/G
4 ARABIC B/G

7-1 7-2
7
14BM2, 14BM2S/G 20BM2, 20BM2S/G 21BM2, 21BM2S/G
PIF ADJUSTMENT
NO. Adjustment part Adjusting procedure and conditions Waveform and others
1
Fig. 1
2 RF-AGC
TAKE OVER
POINT
ADJUSTMENT
(I2C BUS
CONTROL)
1. Receive "PAL COLOUR BAR" signal.
» Signal Strength: 57 ±1 dBµV (75 ohm open)
2. Connect the oscilloscope to TP201 (Tuner’s
AGCTerminal) as shown in Fig. 3.
3. Call "AGC" mode in service mode.Adjust the
"AGC" bus data to obtain the Tuner output pin
drop 0.1 V 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 dBµV to be
sure that there is no cross modulation beat.
Note:
For the 50 ohm signal strength
gauge, when not using 50/75
impedance adapter, signal
strength is 52 ±1 dBµV(75 ohm
open), instead of 57 ±1 dBµV
(75 ohm open).
Precaution:
The loss of using impedance
adapter
»Bias box: About 4.5 V
Oscilloscope
0.1V
TV Set
Bias box
TP201
+
+
–
–
TUNER IFT
(PRESET) 1. Get the tuner ready to receive the E-9 CH sig- nal, 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 IMPED-
ANCE 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 shown in Fig. 2.
Note:Be sure to keep the tuner cover in posi-
tion during this adjustment.
E-9 CH
P C
10k
100k
1n60
75ohm
IF OUT
-1.5+/-0.8dB
1000p
Oscilloscope
Fig. 2
Fig. 3
PURITY ADJUSTMENT
NO. Adjustment part Adjusting procedure and conditions Waveform and others
1PURITY
ADJUSTMENT 1. Receive the GREEN-ONLY signal. Adjust the
beam current to ~700 µA (21" & 20")/~500 µA
(14").
2. Degauss the CRT enough with the degausing
coil.
Note: Follow the Job Instruction Sheet to ad-
just the magnetic field.
Vertical Bv : +0.030 mT
(0.30 gauss)
Horizontal Bh : +0.020 mT
(0.20 gauss)
(Reference: page 8/21)
3. Maintain the purity magnet at the zero mag-
netic field and keep the static convergence
roughly adjusted.
4. Observe the points a, b as shown in Fig. 4-1
through the microscope. Adjust the landings
to the rank A requirements.
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 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 µA. (21" & 20")
(For 14", the beam current should be
over 500 µA).
Note: Set the service mode by JA122 &
JA124 (short) then press factory proc-
ess R/C RGB key to change to RGB
mono colour mode.
* For the following colours press R/C RGB key
to change.
* Press R/C RGB key for 1 second
in NORMAL MODE, the colour
will change to RGB mono colour
mode.
ab
A
B
A
B
A = B
A = B
Rank "A"
(on the right of the CRT)
Rank "A"
(on the left of the CRT)
Green only Blue only Red only
Signal colour
screen cleared
Fig. 4-1
Fig. 4-2
Fig. 4-3
Text Key "R.G.Cy"" Key can be
directly use to change to other
colours screen.

8
8-1 8-2
14BM2, 14BM2S/G 20BM2, 20BM2S/G 21BM2, 21BM2S/G
RGB
BGR
R
G
B
R
G
B
B
G
R
B
G
R
RGB
BGR
Lacquer
Wedge "a"
Wedge
"b" Wedge
"c"
About
100°
About
100°
4-pole magnet
6-pole magnet
CRT neck
20c m
(21")
Lacquer
Purity magnet
40 cm
(14")
CONVERGENCE ADJUSTMENT
NO. Adjustment part Adjusting procedure and conditions Waveform and others
1CONVERGENCE
ADJUSTMENT
(To be done
after the purity
adjustment.)
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. 5-1:Drive the wedge at point“a”and
swing the deflection coil upward.
b) Fig. 5-2:Drive the wedge at points“b”and
“c” and swing the deflection coil
downward.
c) Fig. 5-3:Drive the“c”wedge deeper and
swing the deflection coil rightward.
d) Fig. 5-4: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.
Fig. 5-2
Fig. 5-1
Fig. 5-3
Fig. 5-4
Fig. 5-5
Fig. 5-6
1. Call “SUB-BRI” in service mode. (Receive
Crosshatch pattern with 5 black level windows)
2. Adjust the “SUB BRIGHT” bus data in order
that the line 1, 2 and 3 have the same darkness
wherelse line 4 is slightly brighter than line 1,
2 and 3 and finally line 5 will be the brighter
than line 4.
1. Switch TV toVIDEO mode, BLUE BACK OFF,
with NOVIDEO signal.
2. Press R/C to set Picture Normal condition.
3. Connect the oscilloscope to Red OUT from
IC801.(TP851 (14")/TP852 (20"/21"))
Range : 1 V/Div (DC)
Sweep : 5 msec/Div
4. Adjust SCREEN VR, so that the tip of signal
reach 3.0 ±0.1 Vdc.
CRT CUT-OFF, BACKGROUND AND SUB-CONTRAST ADJUSTMENT
NO. Adjustment part Adjusting procedure and conditions Waveform and others
1
2SUB-
BRIGHTNESS
ADJUSTMENT
(I2C BUS
CONTROL)
1, 2 and 3 are in same black level.
CRT CUTOFF
ADJUSTMENT
(I2C BUS
CONTROL)
Fig. 6
3WHITE
BALANCE
SERVICE
MODE
ADJUSTMENT
(I2C BUS
CONTROL)
1. Receive the“WHITE” pattern with BURST sig-
nal.
2. Press R/C to set Picture NORMAL condition.
3. Connect the DC miliammeter betweenTP602
(-) andTP603 (+).
4. Check Beam current should be around 1,100 µA
(20"&21") (14" around 800 µA).
5. Set it to service mode and adjust the DRI-GS,
& DRI-BS data to have a colour temperature
of 12,300°K or 7,500°K (white).
* Note .
6. Receive “WHITE”pattern, WITH BURST signal,
and set BRIGHTNESSY by generator, to ** 10
cd/m2 (MINOLTA CA-100) by reducing
LUMINATEY signal.
7.Adjust “CUT-R” &“CUT-G” to get desired colour
temperature. Then go back NORMAL mode
(HIGH BRIGHT**) to check colour temperature.
If out 14” back to (1)
Note: This adjustment must be done after
warming up the unit for 30 minutes
or longer with a beam current over
700 µA. (20"&21")
(For 14", the beam current should be
over 500 µA)
* Adjust DRI-GC/GW, DR-BC/BW as following
data, after finishing DRI-BS and DRI-GS data
adjustment.
DRI-RW=32 (FIXED), DRI-GW=”DRI-
GS”-7*, DRI-BW=”DRI-BS”-7*
DRI-RC=25, DRI-BC=”DRI-BS”,
DRI-GC=”DRI-GS”-7*
Refer to Page ????.
* 12,300°K X : 0.272
Y : 0.275
* 18,000°K X : 0.255
Y : 0.255
(MINOLTA COLOUR ANALYZER
CA-100)
*Note: Above Data can be UP/
DOWN by Volume key.
LOW HIGH
14" 10 cd/m2 200 cd/m2
20"/21" 10 cd/m2 120 cd/m2
* 12,300°K DRI-GW=”DRI-GS”-7
DRI-BW=”DRI-BS”-7
* 18,000°K DRI-GC=”DRI-GS”
DATA-5
DRI-RC=27
4MAXIMUM
BEAM CHECK 1. Receive the“Monoscope Pattern” signal.
2. Press R/C to set Picture NORMAL condition.
3. Connect the DC miliammeter betweenTP603
(+) andTP602 (–).
(Full Scale: 3 mA Range)
4. Beam current must be within 1,100 ±100µA
(21") 800 ±100 µA(14") .
1 V
3.0Vdc
0
1 2 3 4 5
Fig. 7

9-1 9-2
9
14BM2, 14BM2S/G 20BM2, 20BM2S/G 21BM2, 21BM2S/G
HORIZONTAL, VERTICAL, DEFLECTION LOOP AND FOCUS ADJUSTMENT
NO. Adjustment part Adjusting procedure and conditions Waveform and others
1
2
3
4
5
V-SLOPE
(I2C BUS
CONTROL)
V-SHIFT-50
(I2C BUS
CONTROL)
V-AMP 50
(I2C BUS
CONTROL)
S-CORRECTION
(I2C BUS
CONTROL)
H-SHIFT (50)
(H-CENTER)
(I2C BUS
CONTROL)
1. Receive Monoscope Pattern Signal.
2. Call the “V-LIN” mode.
3. Increase or decrease “V-LIN” byVolume key till
the horizontal line in the center of monoscope is
just at the position where the blanking starts.
1. Call the “V-CENT” mode.
2. Increase or decrease “V-CENT” by Volume key
till the picture is centered.
1. Call the “V-AMP” mode.
2. Increase or decrease “V- AMP” byVolume key
to set overscan of 9.5% typical.
Adjustment Spec 9.5% range +1% -0%.
FIXED DATA, NO NEEDTO ADJUST.
1. Call the “H-CENT” mode.
2. Increase or decrease “H-CENT”by Volume key
to center the picture horizontal.
PAL CHROMA ADJUSTMENT
NO. Adjustment part Adjusting procedure and conditions Waveform and others
1 SUB COLOUR
(I2C BUS
CONTROL)
1. Receive the“PAL Colour Bar” signal.
2. Press R/C to set Picture Normal condition.
3. Connect the oscilloscope to Red cathode.
»Range : 20V/Div.(AC) (Use 10:1 probe)
»Sweep time : 10 µsec/Div.
4. Using the R/C call “SUB COL” in SERVICE
mode.Adjust SUB COLOUR bus data, so that
the 75% White & Red portions of PAL Colour
Bar be at the same level shown as Fig. 8.
5. Clear the SERVICE mode.
1FOCUS
ADJUSTMENT 1. Receive the“Monoscope Pattern” signal. 2. Press R/C to set Picture NORMAL condition.
3. Adjust the focus control to get thebest focusing.
Cy GB
WY 100%W
75% Mg R
Fig. 8
NTSC CHROMA ADJUSTMENT
NO. Adjustment part Adjusting procedure and conditions Waveform and others
1 SUB-TINT
(I2C BUS
CONTROL)
1. Receivethe“NTSC3.58ColourBar”signal thru
AV in.
2. Connect the oscilloscope toTP853 (Pin (5) of
P882) BLUE-OUT.
»Range : 100 mV/Div. (AC)
(Use Probe 10:1)
»Sweep time : 10 µsec/Div.
3. Call the “SUB-TINT” mode in service mode.
Adjust the “SUB-TINT”bus data to obtain the
waveform shown as Fig. 9.
4. Clear the SERVICE mode.
PROTECTOR OPERATION CHECKING
NO. Adjustment part Adjusting procedure and conditions Waveform and others
1 BEAM
PROTECTOR 1. Receive “Monoscope Pattern” signal.
2. Set CONTRAST MAX.
3. Set BRIGHT MAX.
4. During the Collector & Emitter of Q883/5/7
short, make sure the protector ON and switch
to standby mode.
*Select one of Q883/5/7to doeach
short test.
2H,V
PROTECTOR 1. Receive “Monoscope Pattern” signal. 2. Connect output of Bias Box to D607 cathode
(R606 side).
3. Set voltage of Bias Box to 18V and make sure
the protector is not work.
4. Set voltage of Bias Box to 27V, and make sure
the protector is work.
A/V INPUT AND OUTPUT CHECKING
NO. Adjustment part Adjusting procedure and conditions Waveform and others
1 VIDEO AND
AUDIO OUTPUT
CHECK
1. Receive the “PAL Colour Bar” signal (100%
White Color Bar, Sound 400 Hz 100% Mod
C475.)
2. Terminate theVideo output with a 75 ohm im-
pedance.Make sure the output is as specified
(1.0 Vp-p ±3 dB).
3. Terminate the Audio output with a 10K ohm
impedance.Make sure the output is as speci-
fied (1.76 Vp-p ±3 dB).
2 VIDEO AND
AUDIO INPUT
CHECK
1. Using theTV/AV key on the remote controller,
make sure that the modes change in order of
TV, AV1, AV2 & TV again and the video & audio
output are according to the input terminal for
each mode.
3 OTHER
PROTECTOR 1. OncefinishrectifiedElectrolyticCapacitor short testing in +B line, check all possible damaged
components on +B line.
(Use random selected set for inspection)
W
SAME LEVEL
YCy G Mg R B
Fig. 9

10
10-1 10-2
14BM2, 14BM2S/G 20BM2, 20BM2S/G 21BM2, 21BM2S/G
FUNCTION OPERATION CHECKING (VIDEO AND AUDIO)
NO. Adjustment part Adjusting procedure and conditions Waveform and others
1
2COLOUR KEY 1. Receive “Colour Bar” signal.
2. Set P-Mode to select COLOUR.
3. Press Volume Up/Down key to check whether
the COLOUR effect is OK or not.
CONTRAST
KEY 1. Receive “Monoscope Pattern” signal. 2. Set P-Mode to select CONTRAST.
3. PressVolume Up/Down key to check whether
the CONTRAST effect is OK or not.
3BRIGHTNESS
KEY 1. Receive “Monoscope Pattern” signal.
2. Set P-Mode to select BRIGHTNESS.
3. PressVolume Up/Down key to check whether
the BRIGHTNESS effect is OK or not
4 TINT KEY 1. Receive the“NTSC Colour Bar” signal thru AV
in.
2. Set P-Mode to selectTINT.
3. PressVolume Up/Down key to check TINT, UP
for GREEN direction and DOWN for PURPLE
direction whether is OK or not.
FUNCTION OPERATION CHECKING (VIDEO AND AUDIO)
(Continued)
NO. Adjustment part Adjusting procedure and conditions Waveform and others
9COLOUR
SYSTEM 1. Receive the “PAL COLOUR BAR” signal, press
the COLOUR SYSTEM key to select modes
except PAL, check the COLOUR is not work-
ing properly. Then, select the “PAL” mode.
Checkagainitscolour so that itisworkingprop-
erly.
2. Receive “SECAM COLOUR BAR” signal,
press COLOUR SYSTEM key to select modes
except SECAM, check the COLOUR is not
working properly. Then, select the “SECAM”
mode.Check again its colour so that it is work-
ing properly.
3.Receive“NTSC 4.43/3.58 COLOUR BAR” sig-
nal thru AV, press COLOUR SYSTEM key to
select modes except N4.43/3.58, check the
COLOUR is not working properly. Then, se-
lect the “NTSC 4.43/3.58”mode.Check again
its colour so that it is working properly.
10 SOUND
SYSTEM 1. Receive “PAL-D/K” signal, press the “SOUND
SYSTEM” turn to B/G, I.Check the sound out-
put is not working properly. Select D/K and
check the sound output to make sure it is work-
ing properly.
2. Receive “PAL-I” signal, press the “SOUND
SYSTEM” to select B/G, D/K.Check the sound
output is not working properly. Select I and
check the sound output to make sure it is work-
ing properly.
3. Receive“PAL-B/G” signal, press the “SOUND
SYSTEM” to select I, D/K. Check the sound
output is not working properly. Select B/G and
check the sound output to make sure it is work-
ing properly.
5SHARPNESS
KEY 1. Receive “Monoscope Pattern” signal.
2. Set P-mode to select SHARPNESS.
3. PressVolume Up/Down key to check whether
the SHARPNESS effect is OK or not.
6CH DISPLAY
COLOUR 1. All Ch (1~99) will have an OSD display of the
channel number in green colour under AFT ON
condition.
7NORMAL KEY 1. Once in PICTURE Mode, and the NORMAL
key is pressed, all the settings will be present
to normal setting.
(Normal setting value for every mode).
»CONTRAST : MAX
»COLOUR : CENTER
»BRIGHTNESS : CENTER
»TINT : CENTER
»SHARPNESS : CENTER
Note:If nothing is display mean
contrast,colour,bright,tint
or sharpness are all in nor-
mal setting.
8WHITETEMP 1. Receive “Monoscope Pattern” signal.
2. Set FUNCTION to select WHITETEMP.
3. Press Volume Up/Down key to check WHITE
TEMP Option, STANDARD:
NORMAL SETTING, WARM for more RED-
DISH direction changing, COOL for more BLU-
ISH direction changing.
11 NOISE MUTE
CHECKING 1. Receive“PAL COLOUR BAR” signal.
2. Turn up the volume control to maximum, make
sure the sound is heard from the speakers.
Then put the unit in no signal state.
3. Check the sound mute is effective.
4. Finally turn sound level of CTV to minimum.
12 OSD
LANGUAGE
QUANTITY
CHECK
There are six language as below;
English, Russian, Chinese, French, Arabic and
Malay.

11-1 11-2
11
14BM2, 14BM2S/G 20BM2, 20BM2S/G 21BM2, 21BM2S/G
MEMORY MAP
00 PASS WORD 55 00-FF
01 PASS WORD 4F 00-FF
02 PASS WORD 43 00-FF
03 PASS WORD A1 00-FF
04
05
06 AGC TAKE-OVER 0E 00-3F
07 V-SLOPE 20 00-3F
08 V-AMPLITUDE 20 00-3F
09 V-CENTER 20 00-3F
0A H-CENTER 20 00-3F
0B H-SIZE 20 00-3F
0C EW-PARALLELOGRAM 20 00-3F
0D EW-PARABOLA/WIDTH 20 00-3F
0E EW-UPPER CORNER 20 00-3F
0F EW-LOWER CORNER 20 00-3F
10 EW-TRAPEZIUM 20 00-3F
11 HORIZONTAL-BOW 20 00-3F
12 S-CORRECTION 00 00-3F
13
14
15
16 DRIVE-R (STANDARD) 20 00-3F
17 DRIVE-G (STANDARD) 20 00-3F
18 DRIVE-B (STANDARD) 20 00-3F
19 DRIVE-R (WARM) 20 00-3F
1A DRIVE-G (WARM) 20 00-3F
1B DRIVE-B (WARM) 20 00-3F
1C DRIVE-R (COOL) 19 00-3F
1D DRIVE-G (COOL) 20 00-3F
1E DRIVE-B (COOL) 20 00-3F
1F
20
21
22 SUB-VOLUME 3F 00-3F
23 SUB-CONTRAST 3F 00-3F
24 SUB-COLOUR 20 00-3F
25 SUB-BRIGHTNESS 20 00-3F
26 SUB-TINT 20 00-3F
27 SUB-SHARPNESS 20 00-3F
28 HTL-VOLUME 20 00-3F
29 HTL-POSITION FF 00-FF
2A
2B
2C
2D OSD-REFERENCE 0F 00-0F
2E CUTOFF LEVEL -OFFSET R 08 00-0F
2F CUTOFF LEVEL -OFFSET B 08 00-0F
30 CATHODE DRIVE LEVEL 00 00-0F
31 Y-DELAY (TV PAL) 0C 00-0F
32 Y-DELAY (TV SECAM) 0F 00-0F
33 Y-DELAY (TV N358) 0C 00-0F
34 Y-DELAY (TV N443) 0C 00-0F
35 Y-DELAY (TV BW) 0C 00-0F
36 Y-DELAY (AV PAL) 0C 00-0F
37 Y-DELAY (AV SECAM) 0F 00-0F
38 Y-DELAY (AV N443) 0C 00-0F
39 Y-DELAY (AV N358) 0C 00-0F
3A Y-DELAY (AV BW) 0C 00-0F
3B COLOUR-OFFSET (PAL) 08 00-0F
3C COLOUR-OFFSET (SECAM) 08 00-0F
3D COLOUR-OFFSET (N443) 04 00-0F
3E COLOUR-OFFSET (N358) 04 00-0F
3F SHARPNESS-OFFSET (PAL) 08 00-0F
MODEL MODEL
LETTER NO. LETTER NO.
ADDRESS DATA MICON EEPROM EEPROM CHASSIS CTV FINAL
LAST INITIAL
(HEX) D7 D6 D5 D4 D3 D2 D1 D0 DEFAULT RANGE
WRITE(CPU) CHECK DATA CHECK TYPE CHECK DATA CHECK TYPE
SETTING DATA
REMARK
40 SHARPNESS-OFFSET (SECAM) 04 00-0F
41
SHARPNESS-OFFSET (N443) 0C 00-0F
42
SHARPNESS-OFFSET (N358) 08 00-0F
43
44
FCO ACL OSO EHT EVG FFI AVL BKS 00-FF
45
SCM N443 N358 PB-SEC BG I DK M 00-FF
46
SM FMWS AV BTSC HTL VMC VMI 00-FF
47
HP2 FSL RUS FRA CHN MLY ARB THA 00-FF
48
AGC BIL OBA 00-FF
49
4A
4B
4C
VOLUME 01 00-3C
4D
CONTRAST 3C 00-3C
4E
COLOUR 1E 00-3C
4F
BRIGHTNESS 1E 00-3C
50
TINT 1E 00-3C
51
SHARPNESS 1E 00-3C
52
53
54
55
POSITION/AV1/AV2 01 00-FF
56
FAV-POS A 0A 00-FF
57
FAV-POS B 14 00-FF
58
FAV-POS C 1E 00-FF
59
FAV-POS D 28 00-FF
5A
5B
5C
POWER 00 00-01
5D
WHITE-TEMP 00 00-02
5E
BLUE BACK 00 00-01
5F
LANGUAGE 00 00-07
60
DIGIT 00 00-01
61
62
SKIP 0 SKIP 1 SKIP 2 SKIP 3 SKIP 4 SKIP 5 SKIP 6 SKIP 7 80 00-FF
63
SKIP 8 SKIP 9 SKIP 10 SKIP 11 SKIP 12 SKIP 13 SKIP 14 SKIP 15 00 00-FF
64
SKIP 16 SKIP 17 SKIP 18 SKIP 19 SKIP 20 SKIP 21 SKIP 22 SKIP 23 00 00-FF
65
SKIP 24 SKIP 25 SKIP 26 SKIP 27 SKIP 28 SKIP 29 SKIP 30 SKIP 31 00 00-FF
66
SKIP 32 SKIP 33 SKIP 34 SKIP 35 SKIP 36 SKIP 37 SKIP 38 SKIP 39 00 00-FF
67
SKIP 40 SKIP 41 SKIP 42 SKIP 43 SKIP 44 SKIP 45 SKIP 46 SKIP 47 00 00-FF
68
SKIP 48 SKIP 49 SKIP 50 SKIP 51 SKIP 52 SKIP 53 SKIP 54 SKIP 55 00 00-FF
69
SKIP 56 SKIP 57 SKIP 58 SKIP 59 SKIP 60 SKIP 61 SKIP 62 SKIP 63
00 00-FF
6A
SKIP 64 SKIP 65 SKIP 66 SKIP 67 SKIP 68 SKIP 69 SKIP 70 SKIP 71
00 00-FF
6B
SKIP 72 SKIP 73 SKIP 74 SKIP 75 SKIP 76 SKIP 77 SKIP 78 SKIP 79 00 00-FF
6C
SKIP 80 SKIP 81 SKIP 82 SKIP 83 SKIP 84 SKIP 85 SKIP 86 SKIP 87 00 00-FF
6D
SKIP 88 SKIP 89 SKIP 90 SKIP 91 SKIP 92 SKIP 93 SKIP 94 SKIP 95 00 00-FF
6E
SKIP 96 SKIP 97 SKIP 98 SKIP 99 00 00-FF
6F
70
71
72
73
74
TUNING FREQUENCY (HIGHER PART) S-SYS POS 0
75 TUNING FREQUENCY (LOWER PART) 000:BG
76
S-SYS AFT (auto) C-SYS 001:I
77
TUNING FREQUENCY (HIGHER PART) O1O:DK POS 1
78 TUNING FREQUENCY (LOWER PART) 011:M
79
S-SYS AFT (auto) C-SYS
7A TUNING FREQUENCY (HIGHER PART) AFT POS 2
7B TUNING FREQUENCY (LOWER PART) 0:OFF
7C
S-SYS AFT (auto) C-SYS 1:ON
7D
TUNING FREQUENCY (HIGHER PART) POS 3
7E TUNING FREQUENCY (LOWER PART)
7F S-SYS AFT (auto) C-SYS
MODEL MODEL
LETTER NO. LETTER NO.
ADDRESS
DATA
MICON EEPROM EEPROM CHASSIS CTV FINAL
LAST INITIAL
(HEX) D7 D6 D5 D4 D3 D2 D1 D0
DEFAULT RANGE
WRITE(CPU) CHECK DATA CHECK TYPECHECK DATA CHECK TYPE
SETTING DATA
REMARK

12
12-1 12-2
14BM2, 14BM2S/G 20BM2, 20BM2S/G 21BM2, 21BM2S/G
80 TUNING FREQUENCY (HIGHER PART) POS 4
81 TUNING FREQUENCY (LOWER PART)
82 S-SYS AFT (auto) C-SYS
83 TUNING FREQUENCY (HIGHER PART) POS 5
84 TUNING FREQUENCY (LOWER PART)
85 S-SYS AFT (auto) C-SYS
86 TUNING FREQUENCY (HIGHER PART) POS 6
87 TUNING FREQUENCY (LOWER PART)
88 S-SYS AFT (auto) C-SYS
89 TUNING FREQUENCY (HIGHER PART) POS 7
8A TUNING FREQUENCY (LOWER PART)
8B S-SYS AFT (auto) C-SYS
8C TUNING FREQUENCY (HIGHER PART) POS 8
8D TUNING FREQUENCY (LOWER PART)
8E S-SYS AFT (auto) C-SYS
8F TUNING FREQUENCY (HIGHER PART) POS 9
90 TUNING FREQUENCY (LOWER PART)
91 S-SYS AFT (auto) C-SYS
92 TUNING FREQUENCY (HIGHER PART) POS 10
93 TUNING FREQUENCY (LOWER PART)
94 S-SYS AFT (auto) C-SYS
95 TUNING FREQUENCY (HIGHER PART) POS 11
96 TUNING FREQUENCY (LOWER PART)
97 S-SYS AFT (auto) C-SYS
98 TUNING FREQUENCY (HIGHER PART) POS 12
99 TUNING FREQUENCY (LOWER PART)
9A S-SYS AFT (auto) C-SYS
9B TUNING FREQUENCY (HIGHER PART) POS 13
9C TUNING FREQUENCY (LOWER PART)
9D S-SYS AFT (auto) C-SYS
9E TUNING FREQUENCY (HIGHER PART) POS 14
9F TUNING FREQUENCY (LOWER PART)
A0 S-SYS AFT (auto) C-SYS
A1 TUNING FREQUENCY (HIGHER PART) POS 15
A2 TUNING FREQUENCY (LOWER PART)
A3 S-SYS AFT (auto) C-SYS
A4 TUNING FREQUENCY (HIGHER PART) POS 16
A5 TUNING FREQUENCY (LOWER PART)
A6 S-SYS AFT (auto) C-SYS
A7 TUNING FREQUENCY (HIGHER PART) POS 17
A8 TUNING FREQUENCY (LOWER PART)
A9 S-SYS AFT (auto) C-SYS
AA TUNING FREQUENCY (HIGHER PART) POS 18
AB TUNING FREQUENCY (LOWER PART)
AC S-SYS AFT (auto) C-SYS
AD TUNING FREQUENCY (HIGHER PART) POS 19
AE TUNING FREQUENCY (LOWER PART)
AF S-SYS AFT (auto) C-SYS
B0 TUNING FREQUENCY (HIGHER PART) POS 20
B1 TUNING FREQUENCY (LOWER PART)
B2 S-SYS AFT (auto) C-SYS
B3 TUNING FREQUENCY (HIGHER PART) POS 21
B4 TUNING FREQUENCY (LOWER PART)
B5 S-SYS AFT (auto) C-SYS
B6 TUNING FREQUENCY (HIGHER PART) POS 22
B7 TUNING FREQUENCY (LOWER PART)
B8 S-SYS AFT (auto) C-SYS
B9 TUNING FREQUENCY (HIGHER PART) POS 23
BA TUNING FREQUENCY (LOWER PART)
BB S-SYS AFT (auto) C-SYS
BC TUNING FREQUENCY (HIGHER PART) POS 24
BD TUNING FREQUENCY (LOWER PART)
BE S-SYS AFT (auto) C-SYS
BF TUNING FREQUENCY (HIGHER PART) POS 25
MODEL MODEL
LETTER NO. LETTER NO.
ADDRESS DATA MICON EEPROM EEPROM CHASSIS CTV FINAL
LAST INITIAL
(HEX) D7 D6 D5 D4 D3 D2 D1 D0 DEFAULT RANGE
WRITE(CPU) CHECK DATA CHECK TYPE CHECK DATA CHECK TYPE
SETTING DATA
REMARK
C0 TUNING FREQUENCY (LOWER PART) POS 25
C1 S-SYS AFT (auto) C-SYS
C2 TUNING FREQUENCY (HIGHER PART) POS 26
C3 TUNING FREQUENCY (LOWER PART)
C4 S-SYS AFT (auto) C-SYS
C5 TUNING FREQUENCY (HIGHER PART) POS 27
C6 TUNING FREQUENCY (LOWER PART)
C7 S-SYS AFT (auto) C-SYS
C8 TUNING FREQUENCY (HIGHER PART) POS 28
C9 TUNING FREQUENCY (LOWER PART)
CA S-SYS AFT (auto) C-SYS
CB TUNING FREQUENCY (HIGHER PART) POS 29
CC TUNING FREQUENCY (LOWER PART)
CD S-SYS AFT (auto) C-SYS
CE TUNING FREQUENCY (HIGHER PART) POS 30
CF TUNING FREQUENCY (LOWER PART)
D0 S-SYS AFT (auto) C-SYS
D1 TUNING FREQUENCY (HIGHER PART) POS 31
D2 TUNING FREQUENCY (LOWER PART)
D3 S-SYS AFT (auto) C-SYS
D4 TUNING FREQUENCY (HIGHER PART) POS 32
D5 TUNING FREQUENCY (LOWER PART)
D6 S-SYS AFT (auto) C-SYS
D7 TUNING FREQUENCY (HIGHER PART) POS 33
D8 TUNING FREQUENCY (LOWER PART)
D9 S-SYS AFT (auto) C-SYS
DA TUNING FREQUENCY (HIGHER PART) POS 34
DB TUNING FREQUENCY (LOWER PART)
DC S-SYS AFT (auto) C-SYS
DD TUNING FREQUENCY (HIGHER PART) POS 35
DE TUNING FREQUENCY (LOWER PART)
DF S-SYS AFT (auto) C-SYS
E0 TUNING FREQUENCY (HIGHER PART) POS 36
E1 TUNING FREQUENCY (LOWER PART)
E2 S-SYS AFT (auto) C-SYS
E3 TUNING FREQUENCY (HIGHER PART) POS 37
E4 TUNING FREQUENCY (LOWER PART)
E5 S-SYS AFT (auto) C-SYS
E6 TUNING FREQUENCY (HIGHER PART) POS 38
E7 TUNING FREQUENCY (LOWER PART)
E8 S-SYS AFT (auto) C-SYS
E9 TUNING FREQUENCY (HIGHER PART) POS 39
EA TUNING FREQUENCY (LOWER PART)
EB S-SYS AFT (auto) C-SYS
EC TUNING FREQUENCY (HIGHER PART) POS 40
ED TUNING FREQUENCY (LOWER PART)
EE S-SYS AFT (auto) C-SYS
EF TUNING FREQUENCY (HIGHER PART) POS 41
F0 TUNING FREQUENCY (LOWER PART)
F1 S-SYS AFT (auto) C-SYS
F2 TUNING FREQUENCY (HIGHER PART) POS 42
F3 TUNING FREQUENCY (LOWER PART)
F4 S-SYS AFT (auto) C-SYS
F5 TUNING FREQUENCY (HIGHER PART) POS 43
F6 TUNING FREQUENCY (LOWER PART)
F7 S-SYS AFT (auto) C-SYS
F8 TUNING FREQUENCY (HIGHER PART) POS 44
F9 TUNING FREQUENCY (LOWER PART)
FA S-SYS AFT (auto) C-SYS
FB TUNING FREQUENCY (HIGHER PART) POS 45
FC TUNING FREQUENCY (LOWER PART)
FD S-SYS AFT (auto) C-SYS
FE POS 46
FF
MODEL MODEL
LETTER NO. LETTER NO.
ADDRESS
DATA
MICON EEPROM EEPROM CHASSIS CTV FINAL
LAST INITIAL
(HEX) D7 D6 D5 D4 D3 D2 D1 D0
DEFAULT RANGE
WRITE(CPU) CHECK DATA CHECK TYPE CHECK DATA CHECK TYPE
SETTING DATA
REMARK

13-1 13-2
13
14BM2, 14BM2S/G 20BM2, 20BM2S/G 21BM2, 21BM2S/G
100 POS 46
101 TUNING FREQUENCY (HIGHER PART) POS 47
102 TUNING FREQUENCY (LOWER PART)
103 S-SYS AFT (auto) C-SYS
104 TUNING FREQUENCY (HIGHER PART) POS 48
105 TUNING FREQUENCY (LOWER PART)
106 S-SYS AFT (auto) C-SYS
107 TUNING FREQUENCY (HIGHER PART) POS 49
108 TUNING FREQUENCY (LOWER PART)
109 S-SYS AFT (auto) C-SYS
10A TUNING FREQUENCY (HIGHER PART) POS 50
10B TUNING FREQUENCY (LOWER PART)
10C S-SYS AFT (auto) C-SYS
10D TUNING FREQUENCY (HIGHER PART) POS 51
10E TUNING FREQUENCY (LOWER PART)
10F S-SYS AFT (auto) C-SYS
110 TUNING FREQUENCY (HIGHER PART) POS 52
111 TUNING FREQUENCY (LOWER PART)
112 S-SYS AFT (auto) C-SYS
113 TUNING FREQUENCY (HIGHER PART) POS 53
114 TUNING FREQUENCY (LOWER PART)
115 S-SYS AFT (auto) C-SYS
116 TUNING FREQUENCY (HIGHER PART) POS 54
117 TUNING FREQUENCY (LOWER PART)
118 S-SYS AFT (auto) C-SYS
119 TUNING FREQUENCY (HIGHER PART) POS 55
11A TUNING FREQUENCY (LOWER PART)
11B S-SYS AFT (auto) C-SYS
11C TUNING FREQUENCY (HIGHER PART) POS 56
11D TUNING FREQUENCY (LOWER PART)
11E S-SYS AFT (auto) C-SYS
11F TUNING FREQUENCY (HIGHER PART) POS 57
120 TUNING FREQUENCY (LOWER PART)
121 S-SYS AFT (auto) C-SYS
122 TUNING FREQUENCY (HIGHER PART) POS 58
123 TUNING FREQUENCY (LOWER PART)
124 S-SYS AFT (auto) C-SYS
125 TUNING FREQUENCY (HIGHER PART) POS 59
126 TUNING FREQUENCY (LOWER PART)
127 S-SYS AFT (auto) C-SYS
128 TUNING FREQUENCY (HIGHER PART) POS 60
129 TUNING FREQUENCY (LOWER PART)
12A S-SYS AFT (auto) C-SYS
12B TUNING FREQUENCY (HIGHER PART) POS 61
12C TUNING FREQUENCY (LOWER PART)
12D S-SYS AFT (auto) C-SYS
12E TUNING FREQUENCY (HIGHER PART) POS 62
12F TUNING FREQUENCY (LOWER PART)
130 S-SYS AFT (auto) C-SYS
131 TUNING FREQUENCY (HIGHER PART) POS 63
132 TUNING FREQUENCY (LOWER PART)
133 S-SYS AFT (auto) C-SYS
134 TUNING FREQUENCY (HIGHER PART) POS 64
135 TUNING FREQUENCY (LOWER PART)
136 S-SYS AFT (auto) C-SYS
137 TUNING FREQUENCY (HIGHER PART) POS 65
138 TUNING FREQUENCY (LOWER PART)
139 S-SYS AFT (auto) C-SYS
13A TUNING FREQUENCY (HIGHER PART) POS 66
13B TUNING FREQUENCY (LOWER PART)
13C S-SYS AFT (auto) C-SYS
13D TUNING FREQUENCY (HIGHER PART) POS 67
13E TUNING FREQUENCY (LOWER PART)
13F S-SYS AFT (auto) C-SYS
MODEL MODEL
LETTER NO. LETTER NO.
ADDRESS
DATA
MICON EEPROM EEPROM CHASSIS CTV FINAL
LAST INITIAL
(HEX) D7 D6 D5 D4 D3 D2 D1 D0
DEFAULT RANGE
WRITE(CPU) CHECK DATA CHECK TYPE CHECK DATA CHECK TYPE
SETTING DATA
REMARK
140 TUNING FREQUENCY (HIGHER PART) POS 68
141 TUNING FREQUENCY (LOWER PART)
142 S-SYS AFT (auto) C-SYS
143 TUNING FREQUENCY (HIGHER PART) POS 69
144 TUNING FREQUENCY (LOWER PART)
145 S-SYS AFT (auto) C-SYS
146 TUNING FREQUENCY (HIGHER PART) POS 70
147 TUNING FREQUENCY (LOWER PART)
148 S-SYS AFT (auto) C-SYS
149 TUNING FREQUENCY (HIGHER PART) POS 71
14A TUNING FREQUENCY (LOWER PART)
14B S-SYS AFT (auto) C-SYS
14C TUNING FREQUENCY (HIGHER PART) POS 72
14D TUNING FREQUENCY (LOWER PART)
14E S-SYS AFT (auto) C-SYS
14F TUNING FREQUENCY (HIGHER PART) POS 73
150 TUNING FREQUENCY (LOWER PART)
151 S-SYS AFT (auto) C-SYS
152 TUNING FREQUENCY (HIGHER PART) POS 74
153 TUNING FREQUENCY (LOWER PART)
154 S-SYS AFT (auto) C-SYS
155 TUNING FREQUENCY (HIGHER PART) POS 75
156 TUNING FREQUENCY (LOWER PART)
157 S-SYS AFT (auto) C-SYS
158 TUNING FREQUENCY (HIGHER PART) POS 76
159 TUNING FREQUENCY (LOWER PART)
15A S-SYS AFT (auto) C-SYS
15B TUNING FREQUENCY (HIGHER PART) POS 77
15C TUNING FREQUENCY (LOWER PART)
15D S-SYS AFT (auto) C-SYS
15E TUNING FREQUENCY (HIGHER PART) POS 78
15F TUNING FREQUENCY (LOWER PART)
160 S-SYS AFT (auto) C-SYS
161 TUNING FREQUENCY (HIGHER PART) POS 79
162 TUNING FREQUENCY (LOWER PART)
163 S-SYS AFT (auto) C-SYS
164 TUNING FREQUENCY (HIGHER PART) POS 80
165 TUNING FREQUENCY (LOWER PART)
166 S-SYS AFT (auto) C-SYS
167 TUNING FREQUENCY (HIGHER PART) POS 81
168 TUNING FREQUENCY (LOWER PART)
169 S-SYS AFT (auto) C-SYS
16A TUNING FREQUENCY (HIGHER PART) POS 82
16B TUNING FREQUENCY (LOWER PART)
16C S-SYS AFT (auto) C-SYS
16D TUNING FREQUENCY (HIGHER PART) POS 83
16E TUNING FREQUENCY (LOWER PART)
16F S-SYS AFT (auto) C-SYS
170 TUNING FREQUENCY (HIGHER PART) POS 84
171 TUNING FREQUENCY (LOWER PART)
172 S-SYS AFT (auto) C-SYS
173 TUNING FREQUENCY (HIGHER PART) POS 85
174 TUNING FREQUENCY (LOWER PART)
175 S-SYS AFT (auto) C-SYS
176 TUNING FREQUENCY (HIGHER PART) POS 86
177 TUNING FREQUENCY (LOWER PART)
178 S-SYS AFT (auto) C-SYS
179 TUNING FREQUENCY (HIGHER PART) POS 87
17A TUNING FREQUENCY (LOWER PART)
17B S-SYS AFT (auto) C-SYS
17C TUNING FREQUENCY (HIGHER PART) POS 88
17D TUNING FREQUENCY (LOWER PART)
17E S-SYS AFT (auto) C-SYS
17F POS 89
MODEL MODEL
LETTER NO. LETTER NO.
ADDRESS
DATA
MICON EEPROM EEPROM CHASSIS CTV FINAL
LAST INITIAL
(HEX) D7 D6 D5 D4 D3 D2 D1 D0
DEFAULT RANGE
WRITE(CPU) CHECK DATA CHECK TYPE CHECK DATA CHECK TYPE
SETTING DATA
REMARK

14
14-1 14-2
14BM2, 14BM2S/G 20BM2, 20BM2S/G 21BM2, 21BM2S/G
180 POS 89
181
182
TUNING FREQUENCY (HIGHER PART) POS 90
183 TUNING FREQUENCY (LOWER PART)
184 S-SYS AFT (auto) C-SYS
185 TUNING FREQUENCY (HIGHER PART) POS 91
186 TUNING FREQUENCY (LOWER PART)
187 S-SYS AFT (auto) C-SYS
188 TUNING FREQUENCY (HIGHER PART) POS 92
189 TUNING FREQUENCY (LOWER PART)
18A S-SYS AFT (auto) C-SYS
18B TUNING FREQUENCY (HIGHER PART) POS 93
18C TUNING FREQUENCY (LOWER PART)
18D S-SYS AFT (auto) C-SYS
18E TUNING FREQUENCY (HIGHER PART) POS 94
18F TUNING FREQUENCY (LOWER PART)
190 S-SYS AFT (auto) C-SYS
191 TUNING FREQUENCY (HIGHER PART) POS 95
192 TUNING FREQUENCY (LOWER PART)
193 S-SYS AFT (auto) C-SYS
194 TUNING FREQUENCY (HIGHER PART) POS 96
195 TUNING FREQUENCY (LOWER PART)
196 S-SYS AFT (auto) C-SYS
197 TUNING FREQUENCY (HIGHER PART) POS 97
198 TUNING FREQUENCY (LOWER PART)
199 S-SYS AFT (auto) C-SYS
19A TUNING FREQUENCY (HIGHER PART) POS 98
19B TUNING FREQUENCY (LOWER PART)
19C S-SYS AFT (auto) C-SYS
19D TUNING FREQUENCY (HIGHER PART) POS 99
19E TUNING FREQUENCY (LOWER PART)
19F S-SYS AFT (auto) C-SYS
1A0 AV1
1A1
1A2
(auto) C-SYS
1A3 AV2
1A4
1A5
(auto) C-SYS
1A6
1A7
1A8
1A9
1AA
1AB
1AC
1AD
1AE
1AF
1B0
1B1
1B2
1B3
1B4
1B5
1B6
1B7
1B8
1B9
1BA
1BB
1BC
1BD
1BE
1BF
MODEL MODEL
LETTER NO. LETTER NO.
ADDRESS
DATA
MICON EEPROM EEPROM CHASSIS CTV FINAL
LAST INITIAL
(HEX) D7 D6 D5 D4 D3 D2 D1 D0
DEFAULT RANGE
WRITE(CPU) CHECK DATA CHECK TYPE CHECK DATA CHECK TYPE
SETTING DATA
REMARK

15-1 15-2
15
14BM2, 14BM2S/G 20BM2, 20BM2S/G 21BM2, 21BM2S/G
UA1 HOTEL MODE APPLICATION NOTE
The purpose of this HOTEL MODE is to enable hotel authorized person to store the tuned
programs as hotel channels, current volume as hotel volume (maximum volume), picture and
sound setting. In addition,The user will not be able to select Preset and Channel-setting func-
tions.
How to enable/disable the “Hotel Mode” ?
Ans: a) Select BLUE BACK function (under MENU-FEATURE selection) by R/C,
press the -/— (one/two digit) key and keep pressing it for five second, then you can
see the hotel mode with four digits password.
b) Key in the four digits password starting with number “1”, “3”, “7”, “9”, then the hotel
mode will be ENABLE condition, you can switch on/off the hotel mode by using R/C
(volume up/down) key.
* We recommend:
Before set the hotel mode, it is better to choose CH 1 & set SOUND VOLUME level Up to
75% full scale.
After set hotel mode, starting channel will be always ch 1 & maximum sound level out will
be set to 75% of full scale.
* If you set hotel mode in AV, starting channel will be the last ch which you received before
power off (same as normal operation).
CONDITION:
When using hotel mode, the user can ONLY control PICTURE, SOUND and FEATURE
selection. But, It will return to the previous hotel mode setting condition, after power off.
The user can’t use: — CH-SETTING (OSD become violet) and Preset. Other functions is
allowed to be used.
#1 Ch 1 is your selected
channel for hotel mode.
Input 1, 3, 7 and 9 by R/C key.
Set VOL UP/DOWN by R/C key.
HOTEL MODE ON
PASSWORD ****
TROUBLE SHOOTINGTABLE
NO RASTER
Blown out.
Replace the fuse.
Check IC701, D701 and
C707.
Abnormal
YES
ON/OFF ON
NO
Abnormal Normal
The fuse is blown out again.
Does horizontal circuit
oscillate ?
Check IC801, IC751, D605
and Q601.
D1001 (Power LED Red)
turns on or turns ON/OFF.
Check T701 pin (7) voltage
(Approx. 310V at 220V AC)
Check F701.
Normal
Check Secondary Main+B
T701 pin (17) voltage
(Approx. 115V)
Normal
Normal Abnormal
Normal
Check CRT connector
K1-K5 bias.
Check
IC801.
Check
C787. Checking the
protector circuit.
Check R615 and R618.
D1001 (Power LED Green)
turns on.
Check D758, IC702, IC753
and R712.
Check R701, R707 and
D709.
NO


16
16-1 16-2
14BM2, 14BM2S/G 20BM2, 20BM2S/G 21BM2, 21BM2S/G
TROUBLE SHOOTINGTABLE (Continued) TROUBLE SHOOTINGTABLE (Continued)
NEITHER VERTICAL NOR
HORIZONTAL SYNCHRONIZATION
CIRCUIT TO BE CHECKED:
Sync. Separator Circuit.
NO VERTICAL SCAN
Check R503, R504, R506,
R513, C517 and D501.
DEFECTIVE VERTICAL AMP.
AND VERTICAL LINEARITY
Readjust Vertical Size.
(Bus Data)
Check pins (16), (17) and
(34) of IC801.
Check IC501 Bias pins (3)
and (6).
Normal Abnormal
Vertical Linearity and Size
are abnormal.
Check pins (21) and (22) of
IC801. Check C503, C507 and power supply circuit.
NO PICTURE, NO SOUND
No snow noise.
Does signal appear at pin (40) of
IC801 ?
Noise increases but no signal is
received.
Check the tuner supply voltage LB must
be approx. 5V. BT must be approx. 33V
and CH preset data check.
Check the tuner AGC
at TP201.
Does noise or
signal appear at
pin (38) of IC801 ?
Check IC801 and
its related circuit.
Check Q205 and
its related circuit.
Does noise or signal
appear at pins (23)
and (24) of IC801.
Check pin (1) of
SF201, Tuner and
related circuit.
Check pin (37) of
IC801 and related
circuit.
Check pin (27) of
IC801, Tuner and
related circuit.
Does the noise level increase at max.
Contrast, Brightness and Sound controls ?
CIRCUITS TO BE CHECKED:
Tuner.
PIF.
Automatic Gain Control.
(5V), (33V) Power Source.
AbnormalNormal
Normal
YES
YES
YES
NO
NO
NO
Check pin (38) of
IC801.
Does signal appear at pin
(44) of IC801 ?
NO SOUND
Check IC801.
Check C356 and
peripheral circuit.
CIRCUITS TO BE CHECKED:
»Sound system pins (28) and
(44) of IC801.
»Sound Detector Circuit.
»Sound Switch and Att.
Control.
»Audio Output Circuit.
Does signal appear at pins
(6) and (8) of IC301 ?
Check P301 connector of
IC301 and peripheral circuit. Check Q301, pins (4) and (6)
of IC801 and peripheral
circuit.
Does signal appear at pin (28)
of IC801?
YES
YES
(Signal)
YES
NO
NO
NO

17-1 17-2
17
14BM2, 14BM2S/G 20BM2, 20BM2S/G 21BM2, 21BM2S/G
TROUBLE SHOOTINGTABLE (Continued)
NO SPECIFIC COLOUR
Is some colour produced in
B/W broadcast reception ?
Is the white balance properly
adjusted ?
Readjust the white balance.
The picture colour is yellow.The picture colour is magenta.The picture colour is cyan.
Check Q870, Q885 and its
adjacent circuits (for 20"&21").
Check Q871, Q883 and its
adjacent circuits (for 14").
Check Q871, Q883 and its
adjacent circuits (for 20"&21").
Check Q870, Q885 and its
adjacent circuits (for 14").
Check Q872, Q887 and its
adjacent circuits.
Check IC801 and Bias
control circuit.
Normal
NO SPECIFICATION COLOUR
“PAL/SECAM”
(NO COLOUR SYNCHRONIZATION)
NO YES
YES
NO
Check IC801, R801, R802,
R803, D804, D805, D806
and Q801.
Check X1001(12 MHz).

18
14BM2, 14BM2S/G
20BM2, 20BM2S/G
21BM2, 21BM2S/G
M24C04W FX0008GE D601A B709A
85
14
IX3368CE
64 33
132
43
12
2SC1815 2SC2482 PST573J DX0386CE
BASE
COLLECTOR
EMITTER
BASE
COLLECTOR
EMITTER
BCE
KA7808
KA7805 BF421 BF422
LA7016
TDA7056A
123
ANODE
(RED)
CATHODE
(COMMON)
ANODE
(GREEN)
123
SE115N
STRF6653(14")
STRF6654(20" & 21")
PX0423CE
2SD1877(14")
2SD2586(20" & 21")
+ ~ ~ -
2R :BR:
COLLECTOR COLLECTOR
BASE EMITTER BASE EMITTER
13
TA48M033 135
24 9
TDA8357
2SC2735
JC
COLLECTOR
BASE EMITTER
BASE
COLLECTOR
EMITTER
SOLID STATE DEVICE BASE DIAGRAM
TOP VIEW
SIDEVIEW

19
14BM2, 14BM2S/G
20BM2, 20BM2S/G
21BM2, 21BM2S/G
CHASSIS LAYOUT : 14BM2S/G

20
14BM2, 14BM2S/G
20BM2, 20BM2S/G
21BM2, 21BM2S/G
CHASSIS LAYOUT : 20BM2S/G