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SPECIFICATIONS
1. PICTURE TUBE 3. POWER SUPPLY
Size : 17 inch (Flat Slot Mask) 3-1. Power Range
DefIection Angle : 90° AC 100~240V or AC200~240V(PFC) 50/60Hz, 2.0A
Neck Diameter : 29.1mm
3-2. Power Consumption
Stripe Pitch : 0.24mm
Face Treatment : W-ARAS(Anti-Reflection and MODE H/V SYNC POWER CONSUMPTION LED COLOR
Anti-Static Coating) NORMAL (ON) ON/ON less than 105W GREEN
Internal : Anti-Glare
STAND-BY OFF/ON less than 15W
AMBER
2. SIGNAL SUSPEND ON/OFF less than 15W
2-1. Horizontal & Vertical Sync OFF OFF/OFF less than 5W AMBER
1) Input Voltage Level : Low=0~1.2V, High=2.5~5.5V
2) Sync Polarity : Positive or Negative 4. DISPLAY AREA
4-1. Active Video Area : 325.4 x 244.1mm(12.81" x 9.61")
2-2. Video Input Signal 4-2. Display Color : Full Colors
1) Voltage Level : 0 ~ 0.7 Vp-p 4-3. Display Resolution : 1280 x 1024 / 60Hz
a) Color 0, 0 : 0 Vp-p (Non-Interlace)
b) Color 7, 0 : 0.467 Vp-p 4-4. Video Bandwidth : 110MHz
c) Color 15, 0 : 0.7 Vp-p
2) Input Impedance : 75 5. ENVIRONMENT
3) Video Color : R, G, B Analog 5-1. Operating Temperature: 10°C ~ 35°C (Ambient)
4) Signal Format : Refer to the Timing Chart 5-2. Relative Humidity : 10% ~ 90%
(Non-condensing)
2-3. Signal Connector 5-3. Altitude : 5,000m
15-pin Attached Connector
6. DIMENSIONS (with TILT/SWIVEL)
2-4. Scanning Frequency Width : 415.0mm (16.34 inch)
Horizontal : 30 ~ 70 kHz Depth : 439.0mm (17.28 inch)
Vertical : 50 ~ 160 Hz Height : 435.0mm (17.13 inch)
7. WEIGHT (with TILT/SWIVEL)
Net Weight : 17.8kg (39.24 lbs.)
Gross Weight : 20.0kg (44.09 lbs.)
-2-
TIMING CHART
VIDEO
B A
C E
F
D
SYNC
FACTORY PRESET MODE
MODE
MARK MODE 1 MODE 2 MODE 3 MODE 4 MODE 5 MODE 6 MODE 7 MODE 8 MODE 9 MODE 10
H Sync Polarity -- + + + -- -- + -- + +
O Frequency kHz 37.50 46.88 53.68 68.677 31.47 31.47 37.88 43.27 60.02 63.98
R
Total Period µs E 26.67 21.33 18.63 14.561 31.78 31.78 26.40 23.11 16.66 15.63
I
Z Video Active Time µs A 20.32 16.16 14.22 10.836 25.42 25.42 20.00 17.78 13.00 11.85
O Blanking Time µs B 6.35 5.17 4.41 3.725 6.36 6.36 6.40 5.33 3.66 3.78
N
Front Porch µs C 0.51 0.32 0.57 0.508 0.64 0.64 1.00 1.556 0.20 0.44
T
A Sync Duration µs D 2.03 1.62 1.14 1.016 3.81 3.81 3.20 1.556 1.22 1.04
L Back Porch µs F 3.81 3.23 2.70 2.201 1.91 1.91 2.20 2.22 2.24 2.30
Sync Polarity -- + + + + -- + -- + +
V
Frequency Hz 74.99 75.01 85.07 85.00 70.08 59.94 60.32 85.01 75.03 60.02
E
R Total Period ms E 13.335 13.331 11.755 11.764 14.269 16.684 16.579 11.763 13.328 16.661
T Video Active Time ms A 12.802 12.798 11.178 11.182 12.712 15.254 15.840 11.093 12.795 16.005
I
Blanking Time ms B 0.533 0.533 0.577 0.582 1.557 1.430 0.739 0.670 0.533 0.656
C
A Front Porch ms C 0.026 0.021 0.018 0.014 0.414 0.318 0.026 0.023 0.017 0.015
L Sync Duration ms D 0.080 0.064 0.056 0.044 0063 0.063 0.106 0.069 0.050 0.047
Back Porch ms F 0.427 0.448 0.503 0.524 1.080 1.049 0.607 0.578 0.466 0.594
640 800 800 1024 640 640 800 640 1024 1280
x x x x x x x x x x
Resolution 480 600 600 768 400 480 600 480 768 1024
75Hz 75Hz 85Hz 85Hz 70Hz 60Hz 60Hz 85Hz 75Hz 60Hz
Recall Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes
* Mode 1~Mode 4: Basic Mode (Mode 5~Mode 10: Default Mode)
-4-
CONTROL LOCATIONS
MAIN
1 4
2
3
5 6
CONTROL
7
No. Ref. No. Control Function No. Ref. No. Control Function
1 SW201 OSD BUTTON 5 SW205 OSD SELECT/ADJUSTMENT DOWN
2 SW202 OSD SELECT/ADJUSTMENT LEFT 6 SW204 SET BUTTON
3 SW206 OSD SELECT/ADJUSTMENT RIGHT 7 SW207 POWER BUTTON
4 SW203 OSD SELECT/ADJUSTMENT UP
-8-
WIRING DIAGRAM
DY Assembly Screw
P701
P703
P902
P503
-9-
DISASSEMBLY
1. TILT/SWIVEL REMOVAL 2. BACK COVER REMOVAL
1) Set the monitor face downward. 1) Remove two screws cap (a).
2) Pressing the latch (a), carefully remove 2) Remove four screws (b) from the Back Cover.
the Tilt/Swivel by pulling it upward. 3) Slide the Back Cover away from the Front
Cabinet of the monitor.
(b) (a)
(a)
(b)
(a)
3. TOTAL CHASSIS ASSEMBLY
REMOVAL
1) Disconnect P903,P902(Degaussing pin),
P703(DY pin), P503(Tilt pin),
P502(Purity pin), P401 DY Assembly Screw
and P701 from the Main PCB.
2) Disconnect Pin four
from the Video PCB.
3) Carefully separate the CDT
Board Assembly from
the CDT neck.
4) Discharge the remaining
static electricity by shorting
between the Anode Cap
and the CDT ground.
5) Disconnect the Anode Cap SE
T
(b)
from the CDT. P701
6) Remove two screws (a). (a)
7) Remove two screws (b). P703
8) Remove the Total Chassis (b) P902
Pu
Assembly from the Main Frame. Control PCB
rit
yC
oil
(P201)
P503
(a)
- 10 -
4. VIDEO PCB ASSEMBLY REMOVAL 6. BOTTOM BRACKET REMOVAL
1) Remove five screws (a). 1) Remove three screws (a).
2) Disconnect P301, P302, P303, and Pin (b). 2) Remove the Bottom Bracket.
3) Remove the Video PCB Assembly.
P303
P301 (b) (a)
(a) P302
(a)
(a)
(a)
(a)
5. CONTROL PCB ASSEMBLY REMOVAL 7. MAIN BRACKET REMOVAL
1) Remove three screws (a). 1) Remove three screws (a).
2) Remove the Control PCB Assembly 2) Remove the Rear Bracket.
from the Front Cabinet. 3) Remove four screws (b).
4) Release four latches (c),
and remove (a)
the Bottom Bracket.
(b)
(a)
(a)
(b)
OS
D
(b)
(b)
SE
T
(a) (c)
(c)
(a)
(a)
(c)
(c)
- 11 -
[ OS D Con trol ] H.V
BRIGHTNESS/CO NTRAS T 12V 80V
Heater ( 6. 3V )
COLOR CURVE Signal
H-Sync Sig
H / V POSITION Cable R
V-Sync Sig G VIDEO VIDEO
H / V SIZE DY CDT
I2C DA TA(SDA ) B PRE-A MP MAI N A MP
SPCC
(IC302) (IC303)
TRAP IZODE I2C CLOCK(SCL)
PIN B ALA NCE 8V
G1
G2
PA RA LLELOGRA M 120V
MICOM
Screen
OSD IC 8V REG. CUT OFF
ROTA TION (IC401) 5V 12V
(IC301) I2 C (IC304) CONTROL
TOP CO RNRE
BO TTOM CORMOR I2 C 12V
R/G/B R/G/B
RECA LL Contrast Bias
DEGA USSING 5V
12V
Dynamic Focus
Stati c Focus
MOIRE SCL / SDA
LA NGUAGE H/V Sync, X-RA Y
RECA LL PWM Control 12V Protection
Sig Circuit Vertical Blanking,
I2 C Bri ghtness Control
E2PROM
(IC402)
6.3V 15V
H/V Sync P rocessor - 120V
TILT 15V ( IC701 )
Control
COIL
TILT
TDA9 112 V-OUT
Circuit I2 C 40V
( IC601) 30V
TDA4 866
Voltage
H/V
- 12 -
PURITY Sync
Control -12V FBT
COIL
PURITY
Circuit 15V ( T701 )
6.3V H-OUT
H-DRV ( Q706)
B+ 15V
BLOCK DIAGRAM
Degaussing
Circuit 15V H-Linearity
850V
Correction
Auto
15V Dynamic Beam
DEGA USSING Focus Limit
CO IL IC906 DC/DC Converter 15V Circuit
B-DRV
REACTOR 12V REG.
SMPS 120V 12V 50V
Line TRANS
80V
Filter (T901) D/D Feed Back
50V
feedback
15V
6.3V
Voltage -12V
feedback
POWER INPUT
100~240VAC SMPS DPM
200~240VA C CONTROL CONTROL
(50/60Hz) (IC901) CIRCUIT
DESCRIPTION OF BLOCK DIAGRAM
1. SMPS(Switching Mode Power Supply) 8. Horizontal linearity Circuit.
When you turn on the power switch, the operating This circuit corrects the horizontal linearity for each
procedure is as follows: horizontal sync frequency.
1) The AC line voltage is rectified by the bridge diodes
D901 and C908 9. Horizontal drive and Output Circuit.
2) The control IC(IC901) starts switching and generates This circuit is a horizontal deflection amplifier for raster
switching pulses in the primary turns of the SMPS scan.
transformer (T901)
3) The switching pulses of the primary turns are induced the 10. ABL Circuit.
secondary turns of the transformer by the turn ratio. This circuit limits the beam-current for the reliability of the
These pulses are rectified by each diode (D971,D961, CDT.
D951, D931, D941 ,D991)
4) Each rectified DC voltage (120V, 50V, 15V, 80V, 6.3V,- 11. Vertical Output Circuit.
12V and 5V) is supplied to the main circuit. This circuit takes the vertical ramp wave from the
TDA9112(IC701) and performs the vertical deflection by
2. Over Voltage Protection Circuit supplying the saw-tooth wave current to the vertical
When the input voltage of IC901 Vin(pin 4) is more than deflection yoke.
22.5V(typical), all the secondary Voltages of the SMPS
transformer (T901) down to low value. 12. Blanking and Brightness Control Circuit.
Blanking circuit eliminates the retrace line by supplying a
3. Display Power Management Circuit negative pulse wave to the G1 of the CDT.
1) Stand-by and Suspend mode. Brightness control circuit is used for control of the screen
When no input of horizontal or vertical sync, Q951 and brightness by changing the DC level of the G1.
Q952 are turned off.
Then input power consumption is below 15 watts 13. Video Processor Circuit.
2) OFF mode Video processor circuit consists of the video drive output
When no input of horizontal and vertical sync, block. The video drive IC(IC302) receives the video
Then input power consumption is below 5 watts signal from PC. The gain of each channel is controlled by
the voltage of contrast pin. The cut-off circuit compensate
4. X-ray Protection Circuit different voltage of each channel between the cathode
If the high voltage of the FBT reaches up to 29KV IN an and the G1 of the CDT.
abnormal case, Q807 operates and IC401 pin 41 came
to low level, Then IC401 control IC701 to stop Horizontal 14. OSD (On-Screen-Display) Circuit.
drive pulse and stop Horizontal Deflection. This circuit displays on the screen information of the
monitor's status.
5. Microprocessor Control Circuit.
1) Horizontal and Vertical sync signals are supplied to the 15. Dynamic Focus Output Circuit.
microprocessor (IC401). This circuit takes the horizontal and the vertical parabola
2) Microprocessor(IC401) discriminates the operating mode waves from the TDA9112(IC701) and amplifies it to
from the sync polarity and resolution. maintain constant focus on center and comers in the
3) After microprocessor reads these adjusted mode data screen.
stored at EEPROM, it controls operating mode data
through IIC 17. Image Rotation (Tilt) Circuit.
4) Users can control screen condition by the OSD, SET, UP, This circuit corrects the tilt of the screen by supplying the
DOWN, RIGHT, LEFT, and Audio and Audio Mute buttons. image rotation signal to the tilt coil which is attached near
the deflection yoke of the CRT.
6. D/D Convert Circuit.
To obtain constant high voltage, this circuit supplies 18. Earth Margnetic Correction(Purity) Circuit
controlled DC voltage for FBT and Horizontal deflection This circuit corrects the convergence of screen by
circuit according to the horizontal sync frequency. suppling the convergence signal to the coil which is
attached to the CRT near the deflection.
7. Horizontal and Vertical Sync Processor Circuit.
The horizontal and vertical sync processor IC (IC701)
has a sync detector, a saw-tooth generator, and drive
function. So output horizontal and vertical drive signal
control screen distortions.
- 13 -
TROUBLESHOOTING GUIDE
1. NO POWER
NO POWER
(POWER INDICATOR OFF)
CHECK NO TROUBLE IN FUSE
FUSE OK? (F901)
YES
CHECK
C907 VOLTAGE? NO TROUBLE IN
(AC120V: 170VDC, D901
AC220V: 310VDC)
YES
CHECK
IC901 PIN 3
WAVEFORM NO TROUBLE IN
(SQUARE WAVE IC901
COMES OUT?)
YES
CHECK
D931, D961, D991, NO TROUBLE IN
D931, D961, D991,
D951, D941,D971
D951, D941,D971
VOLTAGE?
YES
TROUBLE IN
IC991
- 16 -
2. NO CHARACTER
NO CHARACTER
CHECK
NO TROUBLE IN
IC302 PIN 7, 15, 18,
P302 12V LINE, IC304
21(8V) ?
YES
CHECK TROUBLE IN
NO
IC302 PIN 6, 8, 10 ? PC SIGNAL,
P301 SIGNAL CABLE
YES
CHECK NO TROUBLE IN
IC302 PIN 16, 19, 22 ? IC302
YES
CHECK
NO TROUBLE IN
IC303 PIN 4 (80V)
8 (12V) ? P302 12V LINE/80V LINE
YES
CHECK
IC303 NO TROUBLE IN IC303
PIN 1, 2, 3 ?
YES
CHECK TROUBLE IN
NO R338~R341,
R, G, B CATHODE
VOLTAGE? R344, R345, L302~L304,
D307~D310, D312, D313
YES
TROUBLE IN
CRT SOCKET
- 17 -
3. NO RASTER
NO VIDEO
(POWER INDICATOR ON)
CHECK
POWER INDICATOR ORANGE DPM MODE
GREEN or ORANGE? (NO H and/or V SYNC)
GREEN
CHECK NO TROUBLE IN
D712 ANODE
D712
(-130V)?
YES
CHECK TROUBLE IN
NO
G1 VOLTAGE?
Q703, Q704
(-5~25V)
YES
TROUBLE IN
D941, Q941, Q942 (6.3V)
- 18 -
4. TROUBLE IN H-LINEARITY
UNBALANCED OF H-LIN.
CHECK
IC401 NO TROUBLE IN
PIN 19, 20, 21, IC401 (MICOM)
22, 23, 24?
YES
CHECK TROUBLE IN
NO Q714~Q716, Q735, Q737
Q714~Q716, Q735, Q737
Q711~Q713, Q739 Q711~Q713, Q739, Q710
Q710?
YES
Cs SIGNAL TABLE
TROUBLE IN
RL701 HORIZONTAL
FREQUENCY(fH) Cs0 Cs1 Cs2 Cs3 Cs4
66K ~ 39K H H H H H
63K ~ 66K H H L H H
57K ~ 63K H L H H H
49K ~ 57K H L L H H
46K ~ 49K L H H H H
43K ~ 46K L L H H H
36K ~ 43K L H H L H
33K ~ 36K L H H L L
30K ~ 33K L L L L L
- 19 -
5. NO VERTICAL DEFLECTION
NO V-DEFLECTION
(ONE HORIZONTAL LINE)
CHECK NO TROUBLE IN
IC601 PIN 2
Q951, Q952, D951
(15V)?
15V LINE
YES
CHECK NO TROUBLE IN
IC601 PIN 4
SMPS, D991
(-12V)?
YES
CHECK NO TROUBLE IN
IC601 PIN 1 ? IC701
YES
TROUBLE IN
IC601, V-CIRCUIT
- 20 -
6. TROUBLE IN OSD
NO OSD (ENTER BUTTON MUST BE PRESSED.)
CHECK NO TROUBLE IN
IC301 B+ ? 5V LINE
DC 5V
YES
CHECK TROUBLE IN
IC301 PIN 5, 10 NO
IC601 PIN6 (V-FBP),
WAVEFORM? T701 40V LINE
Pin 10
5V
Pin 5 YES
CHECK
IC301 PIN 12 NO TROUBLE IN
WAVEFORM ? IC302, IC301
H+V
5V
YES
CHECK NO TROUBLE IN
IC301 PIN 13, 14, 15 ? IC301, IC302
H+V
5V
YES
TROUBLE IN
OSD PERIPHERAL
CIRCUIT
- 21 -
7. TROUBLE IN DPM
OFF MODE FAILURE (NO OFF MODE.)
CHECK
IC401 (MICOM) CHECK PC,
INPUT H/V SYNC SIGNAL
PIN 1, 42 (H/V INPUT) (PC IS NOT GOING INTO
SIGNAL? DPM OFF MODE)
NO H/V SYNC
CHECK
IC401 PIN 6 NO TROUBLE IN
WAVEFORM? X401
5V
YES
6MHz
CHECK
NO (DPMF: 0V) TROUBLE IN
IC401 (MICOM)
IC401 (MICOM)
PIN 3, 4 ?
SEE DPM TABLE
YES
CHECK
NO
B+ LINE TROUBLE IN
(6.3V,15V) ? Q941, Q942, Q951, Q952
YES DPM TABLE
Item DPMS DPMF LED
Mode
TROUBLE IN PC NORMAL H H GREEN
STAND-BY L H AMBER
SUSPEND L H AMBER
OFF L L AMBER
- 22 -
8. NO DEGAUSSING
NO DEGAUSSING (DEGAUSS ON THE OSD MENU MUST BE PRESSED.)
CHECK NO TROUBLE IN
IC401 PIN 31
IC401 (MICOM)
(0V)?
YES
CHECK
NO TROUBLE IN
Q920 COLLECTOR
Q921
(15V)VOLTAGE?
DC 5V
YES
CHECK NO TROUBLE IN
P902, P905? P902, P905
YES
CHECK NO TROUBLE IN
RL901? RL901
YES
TROUBLE IN
TH901,
DEGAUSSING COIL
- 23 -
9. NO TILT (NO ROTATION )
NO TILT (NO ROTATION)
CHECK
Q504 NO TROUBLE IN
WAVE FORM ? IC401 (MICOM)
YES
CHECK
15V LINE NO TROUBLE IN
AND 6.3V LINE ? 15V LINE, 6.3V LINE
YES
CHECK
Q503 EMITTER NO TROUBLE IN
VOLTAGE ? Q501~Q503
YES
TROUBLE IN
P503, TILT COIL
- 24 -
EXPLODED VIEW EXPLODED VIEW PARTS LIST
12 Ref. No. Part No. Description
14
1 3091TKC035C CABINET ASS'Y FB775B BRAND C032 775FT
13-2
2423GC3E41B CDT SET, M41QBF423X31N6LD (FOR NORTHERN HEMISPHERE)
2
2423GC3E41F CDT SET, M41QBF423X31R6LD (FOR EQUATORIAL)
3
3 339-002D SCREW ASS'Y, PHP+5x30BP+GW18
4 6140TC2007B COIL, DEGAUSSING 1420MM 160HM 0.55MM
5 6174Z-1044A FBT, FMMTC91-M1044A
6 6620TKB002A SOCKET(CIRC), POWER, BCP-03A-3
B 7 6871TST192A PWB(PCB), FB775C XKGC BRAND TCO95 TOTAL
8 4950TKK171A METAL REAR
9 4810TKM037J BRACKET, FB775C MAIN D-CORE
A 13-1
8 10 332-102G SCREW, PTP+4x30 FZMY
4
2 11 4814TKK077A SHIELD BOTTOM (FB795B)
5
3809TKC034C BACK COVER ASS'Y, NB785C C016 PFC (FB775C-EP PFC VERSION; EUROPE ONLY)
12
15 3809TKC015M BACK COVER ASS'Y, FB775B C016 TCO95 (FB775C-EA WORLD WIDE VERSION)
6
13-1 3550TKK061A COVER, FB795B SCREW(RIGHT)
13-2 3550TKK061B COVER, FB795B SCREW (LEFT)
9
14 332-102P SCREW, PTP+4x30(MSWR/FZMY-1)
15 3043TKK040J TILT SWIVEL ASS'Y, FB775B B029 T032 HIPS
7 6871TMT185A PWB(PCB) ASS'Y MAIN, FB775C XKGC TOTAL (FB775C-EA WORLD WIDE VERSION)
A
6871TMT185B PWB(PCB) ASS'Y MAIN, FB775C PFC TOTAL (FB775C-EP PFC VERSION; EUROPE ONLY)
B 6871TVT191A PWB(PCB) ASS'Y VIDEO, FB775C XKGC BRAND TCO 95 TOTAL
10
3313T17047D MAIN TOTAL ASS'Y, FB775C BRAND (FB775C-EP PFC VERSION; EUROPE ONLY)
OS
D
C
3313T17047A MAIN TOTAL ASS'Y, FB775C BRAND CA-87 (FB775C-EA WORLD WIDE VERSION)
SE
C
T
1
11
3.11V
0.5V
42.8V
45V
4.5V
-7V
4.5V
19.1V
11.4ms 17.8V
0.4
51.2V
340V
130V
60V
12V
247
400 210
1098V
14.6V
-2.0V
14.54
1.3~1.94V