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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: 10C ~ 35C (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 s 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 s A 20.32 16.16 14.22 10.836 25.42 25.42 20.00 17.78 13.00 11.85
O Blanking Time s B 6.35 5.17 4.41 3.725 6.36 6.36 6.40 5.33 3.66 3.78
N
Front Porch s 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 s D 2.03 1.62 1.14 1.016 3.81 3.81 3.20 1.556 1.22 1.04
L Back Porch s 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