Samsung CF21M User manual

Manual
SERVICE
COLOR MONITOR CONTENTS
1. Precautions
2. Product Specifications
3. Disassembly & Reassembly
4. Alignment & Adjustments
5. Troubleshooting
6. Exploded View & Parts List
7. Electrical Parts List
8. Block Diagram
9. Wiring Diagram
10. Schematic Diagrams
COLOR MONITOR
CF21M*

WARNINGS
1. For continued safety, do not attempt to modify the
circuit board.
2. Disconnect the AC power before servicing.
3. When the chassis is operating, semiconductor
heatsinks are potential shock hazards.
1-1-1 Servicing the High Voltage and CRT :
WARNING:A high voltage VR replaced in the wrong
direction may cause excessive X-ray
emissions.
1. When servicing the high voltage system, remove
the static charge by connecting a 10 kohm resistor
in series with an insulated wire (such as a test
probe) between the chassis and the anode lead.
2. When troubleshooting a monitor with excessively
HV, avoid being unnecessarily close to the monitor.
Do not operate the monitor for longer than is
necessary to locate the cause of excessive voltage.
3. High voltage should always be kept at the rated
value, no higher. Only when high voltage is
excessive are X-rays capable of penetrating the shell
of the CRT, including the lead in glass material.
Operation at high voltages may also cause failure of
the CRT or high voltage circuitry.
4. When the HV regulator is operating properly, there
is no possibility of an X-ray problem. Make sure the
HV does not exceed its specified value and that it is
regulating correctly.
5. The CRT is especially designed to prohibit
X-ray emissions. To ensure continued X-ray
protection, replace the CRT only with one that is
the same or equivalent type as the original.
6. Handle the CRT only when wearing shatterproof
goggles and after completely discharging the high
voltage anode.
7. Do not lift the CRT by the neck.
1-1-2 Fire and Shock Hazard :
Before returning the monitor to the user, perform the
following safety checks:
1. Inspect each lead dress to make certain that the
leads are not pinched or that hardware is not
lodged between the chassis and other metal parts in
the monitor.
2. Inspect all protective devices such as nonmetallic
control knobs, insulating materials, cabinet backs,
adjustment and compartment covers or shields,
isolation resistor-capacitor networks, mechanical
insulators, etc.
3. Leakage Current Hot Check (Figure 1-1):
WARNING: Do not use an isolation transformer during
this test.
Use a leakage current tester or a metering system
that complies with American National Standards
Institute (ANSI C101.1, Leakage Current for
Appliances), and Underwriters Laboratories (UL
Publication UL1410, 59.7).
4. With the unit completely reassembled, plug the AC
line cord directly into a 120V AC outlet. With the
unit’s AC switch first in the ON position and then
OFF, measure the current between a known earth
ground (metal water pipe, conduit, etc.) and all
exposed metal parts, including: metal cabinets,
screwheads and control shafts. The current
measured should not exceed 0.5 milliamp. Reverse
the power-plug prongs in the AC outlet and repeat
the test.
Figure 1-1. Leakage Current Test Circuit
1-1-3 Product Safety Notices
Some electrical and mechanical parts have special
safety-related characteristics which are often not
evident from visual inspection. The protection they give
may not be obtained by replacing them with
components rated for higher voltage, wattage, etc. Parts
that have special safety characteristics are identified by
on schematics and parts lists. A substitute
replacement that does not have the same safety
characteristics as the recommended replacement part
might create shock, fire and / or other hazards. Product
safety is under review continuously and new
instructions are issued whenever appropriate.
Components identified by on schematics and parts
lists must be sealed by a soldering iron after
replacement and adjustment.
CF21M* 1-1
1 Precautions
1-1 Safety Precautions
!
DEVICE
UNDER
TEST
TEST ALL
EXPOSED METAL
SURFACES
(READING SHOULD
NOT BE ABOVE 0.5mA)
LEAKAGE
CURRENT
TESTER
2-WIRE CORD
ALSO TEST WITH
PLUG REVERSED
(USING AC ADAPTER
PLUG AS REQUIRED) EARTH
GROUND

Picture Tube: 21-Inch (53 cm): 20-inch (50.8 cm) viewable, 21”: 0.25 mm Dot pitch.
Full-square tube / Perfect Flatmess, 90˚ Deflection,
Anti-Reflection coating with Anti-electrastatic, Medium short persistence phosphor
Scanning Frequency Horizontal : 30 kHz ~ 115 kHz
Display Colors Unlimited colors
Maximum Resolution Horizontal : 1800 Pixels, Vertical : 1440 Pixels
Input Video Signal Analog, 0.7 Vp-p positive at 75 Ω, internally terminated
Input Sync Signal Separate Sync : TTL level positive/negative
Composite Sync : TTL level positive/negative
Sync-on-Green Coptional : Composite sync 0.3 Vp-p negative (Video on Vp-p positive)
Maximum Pixel Clock rate 280 MHz
Active Display Horizontal : 393 mm, Vertical : 294.5 mm
Input Voltage AC 90 ~ 264 Volts, 60 / 50 Hz ± 3 Hz
Power Consumption (nominal) 130 Watt
Dimensions (W x D x H)
Unit / Carton 19.8 x 19.4 x 20.2 Inches (504 x 492 x 508 mm) / 25.0 x 24.6 x 25.3 Inches (634 x 625 x 642 mm)
Weight (Net/Gross) 26.1 kg (57.6 lbs) / 30.5 kg (67.3 lbs)
Environmental Considerations Operating Temperature : 32°F ~ 104°F (0°C ~ 40°C)
Humidity : 10 % ~ 80 %
Storage Temperature : -4°F ~ 113°F (-20°C ~ 45°C)
Humidity : 5 % ~ 95 %
• CF21M* complies with TCO 99 recommendations for reduced electromagnetic fields.
• Designs and specifications are subject to change without prior notice.
2 Product Specifications
2-1 Specifications
CF21M* 2-1
Item Description

3-1-1 Before making Disassembly
1. Disconnector signal cable and power cord
from the monitor.
2. With a pad beneath it, stand the monitor on its
front with the screen facing downward and
the base close to you.
3. Make sure nothing will damage the screen.
3-1-2 Cabinet Disassembly
1. To uncover the 2 uppermost screws. Press in
the end of each screw cap and pull it away
from the cabinet.
2. Remove the 4 screw on the Rear Cover and
pull it toward to remove it.
3-1-3 Removing the Stand
Pull the tab outward on the Chassis Bottom
and pull the Tilt and Swivel Base up to
remove it.
3-1-4 Removing the Top Shield
Remove the 9 screws on the Top Shield Cover
and remove the Shield.
3-1-5 Removing the Bottom Shield
1. Remove the 4 screw on the Bottom Shield
Cover.
2. Lift off the Bottom Shield.
3-1-6 Removing the Video PCB Assembly
1. Remove the Video PCB from the CRT.
2. Disconnect CN102, CN103, CN104, CN105,
CN12 and CN13 on the Video PCB Assembly
and Video PCB Ass’y from the CRT Neck.
CF21M* 3-1
3 Disassembly and Reassembly
This section of the service manual describes the disassembly and reassembly procedures for the
CF21M* monitor.
WARNING: This monitor contains electrostatically sensitive devices. Use with caution when
handling these components.
3-1 Disassembly
Cautions:1. Disconnect the monitor from the power source before disassembly.
2. To remove the Rear Cover, you must use the special opening jig tool.

4-1-1 Before Making Adjustments
4-1-1 (a) ORIENTATION
When servicing, always face the monitor to the
east.
4-1-1 (b) WARM-UP TIME
The monitor must be on for 30 minutes before
starting alignment. Warm-up time is especially
critical in color temperature and white balance
adjustments.
4-1-1 (c) SIGNAL
Analog, 0.7 Vp-p positive at 75 ohm, internal
termination
Sync: Separate/Composite
(TTL level negative/positive)
Sync-on-Green:
Composite sync 0.3 Vp-p negative
(Video 0.7 Vp-p positive)
4-1-1 (d) SCANNING FREQUENCY
Horizontal: 30 kHz ~ 115 kHz (Automatic)
Vertical: 50 Hz ~ 160 Hz (Automatic)
Unless otherwise specified, adjust at the
1280 x 1024 mode (H: 91 kHz, V: 85 Hz) signals.
Refer to Table 2-1 on pages 2-2 and 2-3.
4-1-1 (e) HIGH VOLTAGE ADJUSTMENT
Signal: 1280 x 1024 mode (91 kHz/85 Hz)
Display image: Full white
Contrast: Maximum
Brightness: Maximum
Limit: 27.5 kV ± 0.5 kV
Measure the hight voltage level at the anode cap.
High voltage should be within the limit as above.
4-1-1 (f) G2 (SCREEN) VOLTAGE
The Screen Voltage is fixed in the firm so don’t
need to adjust the Screen voltage.
4-1-1 (g) CENTER RASTER
Adjust VR401 so that the back raster comes to the
center when you apply a signal of 91 kHz/85 Hz.
4-1-2 Required Equipment
The following equipment may be necessary for
adjustment procedures:
4-1-2 (a) DISPLAY CONTROL ADJUSTMENT
1. Non-metallic (–) screwdriver: 1.5 mm
Non-metallic (–) screwdriver: 3 mm
2. Philips (+) screwdriver: 1.5 mm
3. Non-metallic hexkey: 2.5 mm
4. Digital Multimeter (DMM), or
Digital Voltmeter (DVM)
5. Signal generator, or
Computer with a video board that uses the
ET-4000 chipset (strongly recommended if
using Samsung DM 200 software) and that
displays: 1280 x 1024 @ 85 Hz, or 1600 x 1200
@ 85 Hz (maximum).
6. Personal computer
4-1-2 (b) COLOR ADJUSTMENTS
1. All equipment listed in 4-1-2 (a), above
2. Color analyzer, or any luminance
measurement equipmen
4-1-3 After Making Adjustments
After finishing all adjustments, test the monitor in
all directions. If, for example, the monitor does not
meet adjustment specifications when facing north,
reposition the monitor to face east and readjust.
This time, try for an adjustment closer to the ideal
setting within the tolerance range. Test the unit
again in all directions. If the monitor again fails to
meet specifications in every direction, contact
your Regional After Service Center for possible
CRT replacement.
CF21M* 4-1
4 Alignment and Adjustments
This section of the service manual explains how to make permanent adjustments to the monitor.
4-1 Adjustment Conditions
Caution: Changes made without the Softjig are saved only to the user mode settings. As such, the
settings are not permanently stored and may be inadvertently deleted by the user.

CF21M* 5-1
5 Troubleshooting
5-1 Parts Level Troubleshooting
Notes: 1. If a picture does not appear, Click the Brightness and Contrast button on the front panel, and then increase the value
of Brightness and Contrast.
2. Check the following circuits.
• No raster appears: Power circuit, Horizontal output circuit, H/V control circuit, and H/V output circuit.
• High voltage develops but no raster appears: Video output circuits.
• High voltage does not develop: Horizontal output circuits.
5-1-1 No Power Supply
Check and replace FG601, D601,
D701, Q701, IC601 and ZD601.
Done.
IC601 Pin 1 waveform is right? Check and replace
IC601, ZD601, D606, IC701.
Check and Micom. (IC201)
•Check and replace IC651.
•Check every IC connected to 12V.
Yes
No
Check the Voltage at
C607 plus polarity point.
Is the Voltage 400VDC?
with PFC : 400VDC
without PFC : it is different
according to input voltage
Check and replace
FG601, D601, D703.
Yes
No
The secondary voltage of
T601 is right?
(Is it same the schemetic diagram)
Check TR, IC and biode
related to every B+line.
Yes
No
•Check IC651 (KA78R12) Pin 12?
•Is the voltage 12VDC?Appear 4VDC Pin 4 of IC651?
Yes
No
No
Yes

CF21M* 6-1
6 Exploded View and Parts List

- BH98-00336A ASSY PCB/MISC-,SUB BL17MO-,-,- SNA
C414 2306-000147 C-FILM,MPPF 1uF,5%,250V,BK,26x24x15,22.5mm
C415 2306-000234 C-FILM,MPPF 560nF,5%,250V,BK,26x20x13,20
C602 2305-001049 C-FILM,MPEF 1000nF,10%,275V,BK,31x23x13mm,27.5
C607 2401-003391 C-AL 220uF,20%,450V,GP,BK,25x50,10
C701 2305-001049 C-FILM,MPEF 1000nF,10%,275V,BK,31x23x13mm,27.5
CIS BH39-00368A CBF HARNESS
AQ17IS,U2464#26-4C,U2464,80`C,300V,5P/5P,240MM,BLK,26AWG*4,SMH200-05,SMH200-05,B
CIS BH68-00001A LABEL/MARK-CDT ART-PAPER 100G,-,WHT,BLK,-,ALL,CDT SNA
CIS BH73-60304C RUBBER-SUPPORT DP15LT,CR V0,GRAY,-,14*7*10,-,- SNA
CIS BH75-00091A UNIT/BRKT-MAIN/PCB PG21LS,SECC,T1.0,-,-,- SNA
CIS 6003-000122 SCREW-TAPTITE BH,+,B,M4,L12,ZPC(YEL),SWRCH18 SNA
CIS BH70-00023A BRKT-M/PCB PG21LS,SECC,T1.0,-,- SNA
CIS BH70-00025A FRAME-BOTTOM PG21LS,SECC T1.0,T1.0,-,- SNA
CIS BH71-00049A EARTH-PLATE PG21LS,PBS,T0.15,-,- SNA
CIS BH46-00005J MICOM-S/W CF21MS,-,-,-,-,-,- SNA
CN201 3711-004352 CONNECTOR-HEADER BOX,15P,1R,2MM,STRAIGHT,SN SNA
CN202 3711-004351 CONNECTOR-HEADER NOWALL,16P,1R,2.54MM,STRAIGHT,SN SNA
CN204 3711-004182 CONNECTOR-HEADER BOX,10P,1R,-,STRAIGHT,SN SNA
CN205 3711-004484 CONNECTOR-HEADER BOX,5P,1R,2mm,STRAIGHT,SN SNA
CN211 3711-004484 CONNECTOR-HEADER BOX,5P,1R,2mm,STRAIGHT,SN SNA
CN212 3711-004484 CONNECTOR-HEADER BOX,5P,1R,2mm,STRAIGHT,SN SNA
CN401 3711-003989 CONNECTOR-HEADER NOWALL,4P,1R,8mm,STRAIGHT,SN SNA
CN409 3711-000885 CONNECTOR-HEADER 3WALL,3P,1R,2.5mm,STRAIGHT,SN SNA
CORE_1 3301-000233 CORE-FERRITE ZZ,18x9.5x28mm,-,- SNA
CORE_2 3301-000233 CORE-FERRITE ZZ,18x9.5x28mm,-,- SNA
D402 0402-001394 DIODE-RECTIFIER SB540,40V,5A,DO-201AD,BK
D456 0402-001294 DIODE-RECTIFIER UF5404L-5709,400V,3A,DO-201AD,BK
D505 0402-001295 DIODE-RECTIFIER GUR460L-5700,600V,4A,DO-201AD,BK
D507 0402-001295 DIODE-RECTIFIER GUR460L-5700,600V,4A,DO-201AD,BK
D647 0402-000250 DIODE-RECTIFIER RG4C,1000V,1A,-
FG601 3601-000455 FUSE-CARTRIDGE 250V,4A,TIME-LAG,CERAMIC,5.2x20mm
G2_EY599 BH39-00249C LEAD CONNECTOR ASSY
CF21MS,UL1032#22,UL/CSA,1P,-,RED,##22,YFH800-01L,YRT-018,BK,-,-,250MM,1032#22,SJ SNA
H/S+FBT 6003-000122 SCREW-TAPTITE BH,+,B,M4,L12,ZPC(YEL),SWRCH18 SNA
HS402_CLAMP 6502-000132 CABLE CLAMP DAWS-1NE,ID11,L21.0,NTR,NYLON66 SNA
HS504_CLAMP 6502-000001 CABLE CLAMP DAWH-5NB,D15,L35,NYLON66,NTR SNA
IC201 0903-001237 IC-MICROCONTROLLER
ST72774,8BIT,DIP,42P,-,24MHZ,ST,HCMOS,PLASTIC,5.5V,-,0TO+70C,1KB,60KB,8BIT,-,IC- SNA
IC201_SOCK 3704-001071 SOCKET-IC 42P,DIP,SN,1.778mm
IC250 1204-001697 IC-DEF. PROCESSOR
TDA9112,DIP,32P,350MIL,PLASTIC,13.2V,-,0to+70C,ST,DEF.PROCESSOR
IC403 BH13-00009A IC-H/V CONVERGENCE PG17/19,AN5452,SIP,12P,H/V CONVERGENCE,-,1171MW
IC620 0604-001018 PHOTO-COUPLER DAR-TR,63-125%,200mW,DIP-4,ST SNA
JW01 BH39-40306D CBF-HARNESS ,80MM,BLK,1015,AWG22,-,-,-,-,-
L402 BH27-20345J COIL-HORIZ.CENTER -,3.5mH,-,OB6*30-1HHA,-,-,-,-,6.0ohm,-,-,-,BULK
L403 BH26-00071A TRANS-H.LINEARITY
HL-1420,PG19NS,5P,49.0mH/3.5uH,-,49.0mH/3.5uH,-,-,-,19.0ohm/0.02ohm,-,DR1420(C:6
L503 BH27-00037A COIL-CHOKE 3.5uH,+/-10%,12*15,BULK,-,-
L601 BH27-00025A COIL-LINE FILTER -,24.0mH,-,SQE-2828,65.5Ts,PHENOLIC,-,-,0.20 ohm,-,-,-,BK
L701 BH27-00053A COIL CHOKE
TO-2012,195uH,-,20.20*12.57*6.35,65Ts,PHENOLIC,-,-,0.08ohm,17.0*32.0*10.0,-,-,-
LC601 2901-001173 FILTER-EMI AC LINE
250V,3A,UL/CSA/TUV/SEMKO,2200pF,32x39.7x23.4mm,BK,-
M/PCB+B/M-PCB 6003-000010 SCREW-TAPTITE BWH,+,B,M3,L10,ZPC(YEL),SWRCH1 SNA
POS601 1404-001154 THERMISTOR-PTC 4.5OHM,+30%/-20%,220V,270VAC,21A,-,BK
R400 2003-000459 R-METAL OXIDE(S) 100ohm,5%,3W,AA,TP,6x16mm
R401 2003-000459 R-METAL OXIDE(S) 100ohm,5%,3W,AA,TP,6x16mm
R403 2006-000132 R-CEMENT 33ohm,5%,5W,CB,BK,9x13x25mm SNA
R407 2003-000423 R-METAL OXIDE(S) 1.2ohm,5%,3W,AA,TP,6x16mm
!
!
!
!
!
!
CF21M* 7-1
Loc. No. Code No. Description Specification Remarks
7 Electrical Parts List
7-1 Main PCB Parts

8 Block Diagram
CF21M* 8-1
VIDEO
OUTPUT
LM2412
BNC/D-SUB
SELECT IC
S5D2507B
VIDEO
CUTOFF
CONTROL
HORIZONTAL BLANK
HIGH LIGHT
CONTROLER
S5D2520
HORIZONTAL BLANK
AC INLET SOCKET LINE FILTER
RECTIFIER
D3SBA60
AC INPUT 90-264VAC 60/50Hz
DEGAUSS OPERATION
D-COIL
SWITCHING TRANS
+29V
+14V
+6.3 -14V
-14V_I
+80V +210V
H-DRIVE
CRT HEATER VERT OUT
12V OUTPUT
CONTROL
DEGAUSS S-RASTER
H-SYNC/
V-SYNC
OUT
SDA/SCL
CRYSTAL
24MHz
PFC
CONTROL
R G B
CRT
R G B
MICROPROCESSOR
ST72T774
S-CORRECTION
LED
VIDEO PRE-AMP S5D2503
OSD S5D2509
SDA/SCL
ERROR DETECT & FEED BACK
POWER SYNC
H-SYNC TRIGGER
PWM CONTROL &
SWITCHING FET
DP408
BNC/D-SUB
R.G.B
H-SYNC
V-SYNC
INPUT
H-SYNC
V-SYNC
POWER OFF CONTROL
VIDEO OUTPUT
H_DRIVE B+
VOLTAGE REGULATOR KA78R12
VOLTAGE REGULATOR 33269T
+5V
SOG
HOR.VER. OSC
PROCESSING
TDA9112
H/V DRIVE
DYNAMIC FOCUS
HORIZONTAL FOCUS CIRCUIT
H-AFC
HOR. OUTPUT H-DY
HORIZONTAL
REGULATION
CONTROL
HOR. REGULATION
OUTPUT
(PWM CONTROL)
BRIGHTNESS
CONTROL
MUTE
REGULATION SENSER
HOR. DRIVE
S-CORRECTION
FBT
H/V OUTPUT
J6820
H/V REGULATION ERROR
FEEDBACK
X-RAY PROTECTOR
VERTICAL BLANKING GENERATOR
VERTICAL OUTPUT V-DY
HORIZONTAL FOCUS
VERTICAL FOCUS
+12V
HIGH VOLTAGE
SCREEN
G2
FOCUS1, 2
H_LIN.
MOIRE
TILT
CLAMP
ACL
MENU KEY
H-FLB
V-FLB
SDA &SCL
ACL
CLAMP
CLAMP
H_FLB
V_FLB
H-LIN
MUTE
DDC-DATA
DDC-CLK
SELECT from MUC
SOG

CF21M* 9-1
9 Wiring Diagram
CN102
CN103
H_SYNC_OUT H_SYNC_OUT
V_SYNC_OUT
1
+5V 2
+12V 3
+80V 4
+6.3V 6.3V5
GND 6
G1 7
GND 8
H_FLB 9
V_BLK 10
CLAMP 11
SCL 12
SDA 13
ACL 14
DC_FOCUS DC_FOCUS 15
CN201
1
+5V2
+12V3
+80V4
5
6
G17
GND
GND
8
H_FLB9
10
CLAMP11
SCL12
SDA13
ABL14
15
GND 1
2 3 4 5 6 7
BLUE
GND
GREEN
GND
RED
NC
CN101
GND
1 2 3 4 5 6
BLUE
GND GREEN GND RED
Video PCB
Main PCB
BNC PCB
GND 1
+12V 2
+5V 3
GND 4
NC 5
SOG_SYNC
NC
SOG_SYNC
6
GND 7
GND (NC) 8
GND 9
DDC 5V 10
H_Sync 11
V_Sync 12
DDC_CLK 13
DDC_DATA 14
S_RASTER 15
GND 16
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
GND
+12V
+5V
GND
GND
GND (NC)
GND
DDC 5V
H_Sync
V_Sync
DDC_CLK
DDC_DATA
S_RASTER
GND
16
CN202
CN103
H_CG
H_CG
V_CG
V_CG
1
2
3
4
N/S Coil
CRT
TILT CONNECTORCN409
CN501
KEY 1 1
2
3
4
GND
KEY 2
GND
CN204 CONTROL PCB
KEY 1
1
2
3
4
GND
KEY 1
GND
NC 1
2
3
4
USB DM
USB DP
GND
CN102 CN205
1
2
3
4
5
BNC_DSUB
NC
USB DM
USB DP
GND
BNC_DSUB
5

AA
C204
33pF
50V
+12V
R238
C211
1nF
50V
MP
63V
1uF
C255
MO
50V
100nF
C285
ZD236
UZ4.7BSA
R264
R206
+14V
Q253
KTA1281-Y
B
C E
R282
1.5K 1/2W
MO
1/8W
+5V
1N4148
D201
W_PROTECT
KEY2
S1
S2TILT
H/V_ADJ
H_SYNC_IN
V_SYNC_IN
MO
50V
100nF
C208
E
+12V
1/8W
2.2K
R255
R230 1/6W 200
C251
10nF
+5V
100 1/6WR204
R272 1.5K 1/8W
BD204
B
+5V
BD201
+5V
1/8W
R265
1.2K
2
1
slcon3p
CN207
1
2
IC280
1/8W
ABL
100
1/6W
BD280
+80V
4.7K
1/8W
1
1/6W100R236
R209
3.3K
1/8W
B
BD202
50V
100pF
C284
SCL
SDA
H_FLB
V_SYNC_OUT
1/8W
4.7K
R268
150K
R203
P
100V
10nF
C256
R256
MF
1/4W
90K
50V
MO
C280
100nF
Bout 28
TDA9112
IC250
R237 100 1/6W
ZD284
UZ6.2BSB
DDC5V
C281
10nF
100V
P
+5V
D202
1N4148
C212 R225
R278
R253
5K
1/4W
MF
1/8W
10K
R261
100 1/6W
CC
SOG_SYNC
RESET
DEGAUSS
EW_OUT
KEY2
KEY1
+5V_1
R277
50V
MO
C213
100nF
4
5
R273
10K
1/8W
1/6W100R239
R242
50V
10NF
C216
R284
100
1/6W
1
CN210
slcon1p
B
ZD287
ZPD5,6
1N4148
D254
100
1/6W
R251
1/6W100R280
Q250
KSC945-Y
15K
1/6W
R243
MO
50V
0.82NF
C252
+12V
R240
1/6W
2.7K
27nF
100V
P
C253
3
45
6
7
8
56
1/8W
R267
3.3K
R211
slcon8p
1
CN203
+5V_1
R205 1/6W
56
R266
+5V_1
1K
1/8W
ZD203
UZ6.2BSB
3
1/6W
22K
R286
R216
270
1/6W
R283
MTZ7.5C
ZD201
100 1/6W
R231
B
100V
P
C257
1nF
R233
4.7K
1/8W
100V
P
CN205
slcon5p
R207
11
12
13
14
15
16
C207
100nF
50V
MO
ZD204
UZ6.2BSB
R252
27K
1/8W
4.7M
1/6W
S3
S_RASTER
LED
SDA
SCL
DDC_DATA
DDC_CLK
BB
CC
BNC_DSUB
USBDM
USBDP
BNC_DSUB
USBDP
R276
47K
1/6W
4
5
6
7
8
9
10
11
12
13
+12V
C250
100nF
50V
MO
UZ6.2BSB
ZD281
1/6W100
S4
S5
H_DRIVE
X-RAY
H_SUBSIZE
ABL
H_SYNC_OUT
W_PROTECT
CLAMP
V_SYNC_OUT
SDA
SCL
ABL
RESET
TEMP
KEY1
H_SYNC_OUT
V_SYNC_OUT
SDA
SCL
C210
47UF
16V
ZD282
UZ6.2BSB
+12V
56 1/8WR208
H_FLB
H_SIZE
V_OUT
V_FOCUS
TEMP
DC_FOCUS
H_SYNC_OUT
SOG_SYNC
H_SYNC_IN
V_SYNC_IN
USBDM
H_LIN
H_FOCUS
100V
10uF
C268
B
C
E
R250
100
1/6W
R271 1/6W100
2.2K
1/8W
UZ6.2BSB
ZD285
B
BD207
BD208
CLAMP
KEY1
CF21 : R286 = Jumper
DEGAUSS
S1
BB
USBVCC
GND
AQ19N* ONLY
GND
VSYNCIN
HSYNCIN
TILT
SOG IN
24MHZ
S3
BNC/DSUB
Delete on 21"
S RAST
DETECT_12V
JP586/JP698
KS24C080
H/V_ADJ
ABL
OTHER
OEM
LED
OSC OUT
VSYNCOUT
RESET
SYNCMASTER
S2
RESET
KEY2
H SYNC OUT
SCL
DDC CLK
JP332/JP575/JP594
Delete on 21"
H_SUBSIZE
JP221/JP538/JP539/JP540/JP541/JP551/JP552/JP553/JP554
AA
SDA
S4
X-RAY
USBDM
USBDP
Delete on CF21M
S5
H LIN
CC
JP561/JP562/JP580/JP584
OSC IN
AQ19N* ONLY
DDC DATA
VDD
W_PROTECT
19NS 2.2K
G1
S_RASTER
DDC_DATA
DDC_CLK
LED
SDA
SCL
CLAMP
1
2
3
4
5
ZD286
UZ6.2BSB
1/8W
3.3K
R200
UZ6.2BSB
ZD283
LTL-10233W
16V
100UF
C202
OP201
50V
100nF
C201
1/8W
100 1/6WR281
SB020
D282
50V
10uF
C269
100pF
50V
DDC5V
50V
100pF
C283
+6.3V
3
CN211
slcon5p
1
2
16V
47uF
C264
R228 2001/6W
+5V
+5V
15K
1/6W
KSC945-Y
Q254
B
C
E
23
24
25
26
15
41
16
42
17
18
19
20
21 22
36
11
37
12
38
13
39
14
40
6
32
7
33
8
34
9
35
10
1
27
2
28
3
29
4
30
5
31
IC201
KS88P6232N
CN212
slcon5p
1
2
3
4
5
1/8W
1K
A
2
B
C254
50V
4.7uF
1/6W100
R227
R214 10K 1/8W
R219
3.3K
1/8W
C214
100nF
50V
1/6W
120K
100nF
C270
50V
100
R218
3.9K1/6W
C258
100pF
500V
1/6W3.9KR222
50V
1uF
C209
10K 1/8W
R274
560
1/8W
R221
C272
10NF
50V
4.7KR215
CN206
slcon13p
1
2
3
slcon1p
CN209
1M
1/6W
1/6W
22K
R285
+12V
63V
470nF
C265
MP
100UF
16V
R270
R254
C273
2
3
4
5
6
7
8
9
10
CN204
slcon10p
1
100V
P
150nF
C266
1/6W
C220
4.7uF
50V
R229
1K
1/8W
VAGCCAP
VCAP 22
29
VCC
18
VEHTcomp
VGND
21
VOUT
23
19
VRB
VSYNC-IN
2
V_Focus 32
25
Xray
-14V
Hgnd
3HlockOut
26
Hout
13 Href
16 Isense
PLL1F
9
PLL2C
5
8RO
15 Reg-In
30
SCL
SDA 31
20
6CO
14 Comp
EWout 24
4FC1
27
GND
H-pos
10
17
HEHTcomp
HVFocus
11
H_HV-IN
1
Hfly
12
7
1N4148
D281
ZD280
UZ6.2BSB
R275
10K
1/8W
X201
Q0 Q1
P
100V
10NF
C286
1/6W
12K
R220
R226
R269
16V
10uF
C259
+12V
15
7
8
9
10
11
12
13
14
CN201
slcon15p
1
2
3
4
5
6
1/6W
2.7K
3
4
5
6
7
8
9
10
slcon16p
CN202
1
2
1N4148
D250
1/8W56
Q251
KSA733-Y
B
C
C203
33pF
50V
R210 100 1/6W
2
3
4
5
6
7
8
KSC945-Y
Q252
B
C
E
BD205
B
BD203
BB
BD206
B
MO
50V
100nF
C260
16
17
13
9
10
CF21M* 10-1
10 Schematic Diagrams
10-1-1 Main Part Schematic Diagram

Copyright
© 2001 by Samsung Electronics Co., Ltd.
All rights reserved.
This manual may not, in whole or in part, be
copied, photocopied, reproduced, translated, or
converted to any electronic or machine readable
form without prior written permission of
Samsung Electronics Co., Ltd.
CF21M* Service Manual
First edition November 2001.
Printed in Korea.
Trademarks
Samsung is the registered trademark of Samsung
Electronics Co., Ltd.
CF21M* and MacMaster Cable Adapter are
trademarks of Samsung Electronics Co., Ltd.
Macintosh, Centris, Quadra, Duo Dock, and
Power Macintosh are trademarks of Apple
Comprter, Inc.
All other trademarks are the property of their
respective owners.
ii CF21M*

10 Schematic Diagrams
10-2 CF21M*
13 2.20 V (IC250, #11, 32)
CH1 P-P = 2.20 V CH1 RMS = 2.776 V
10 IC250, #23
9IC250, #24 16 3.42 V (IC201, #33)
CH1 P-P = 3.42 V CH1 RMS = 2.500V
17 3.16 V (IC201, #32)
CH1 P-P = 3.16 V CH1 RMS = 2.560 V

+12V +30V +350V
SCREEN
+80V
17/19NS
OTHER 120
19MS/IS 120NF
19NS 180NF
OTHER 1uF
19NS 1.2uF
OTHER 470NF
19NS 680NF
17HS 560NF
Delete on 21"
HITACHI
HTC_ FBT
2SC5584
CM 5W 33ohm
19NS 82
OTHER 220K
19MS 240K
17/19NS180K
17/19NS 150K
OTHER
19MS 30M
OTHER 200K
17/19NS
OTHER 27K
OTHER OPEN
OPENOTHER
560pF19MS
OTHER OPEN
ONLY10K
17/19NS
OTHER 1ohm
105C
105C
105C
AN5452
KA2142
105C
105C
17IS 150
OTHER 2.2K
17IS 2K
17/19NS 2.4K
OTHER 6.8K
17IS 6.2K
17/ 19NS 7.5K
OTHER 560
2.7mH
21" 3.5uH(BH26-00071A)
19NS 3.9uH
OTHER SB340
19NS
OTHER RG10
19NS
OTHER 100NF
19NS 82
OTHER 5.6OTHEROPEN
17NS 10
21" JUMPER
OTHER EI-2218 2.5MH
19NS
OTHER 4.7uF
17/19NS 6.8uF
(4.99V)
(11.68V)
(7.54V)
(0.23V)
(2.49V)
(2.43V)
(1.3V)
105C
100ohm
SCREEN
FOCUS(WHT)
FOCUS(RED)
HORZ-DY
OTHER 180NF
19NS 300NF
17HS 300NF
OTHER 100NF
19MS 120NF
17HS 120NF
OTHER 2NF
OTHER 120NF
17/19/IS 100NF
17/NS 100NF
OTHER 3.5mH
OTHER 2NF
19NS 2.7NF19NS 2.2NF
CN501
AQ19FS: DELETE
10F150S
FJL6820
105C
D510
17/19/NS 2.7mH
(TILT)
REF
VCC
OUT
GND
RC
SENSE
VF
CMP
CN417 1
slcon1p
UF4004
680PF
1KV
HS402_1
heat_sink
C515
SUPLVAL
HS402
CN416 1
slcon1p
L400
33uH
ZD521
UZ7.5BM
1/2W 33K
1N4148
R596
RGP02-12(T)
1N4148
D303
P
1/2W
D523
D598
CC
C510
1nF100V
500V
10nF
C598
slcon1p
15M
R597
1
CN415
slcon1p
1
MO3W
100
R400
R403
CN414
C433
100nF
MO
50V
C
B
Q521
R444
3.3
1/2W
5 4 3
2
B
2N3904
E
heat_sink
heat_sink
HS508
SCREEN
+80V
1
L403
HS509
SNAME
1
EY599
R598
1/4W
180K
1/2W 300K
R599
500V
10nF
L503
C599
1nF
50V
RGP02-12(T)
D599
+350V
C454
MO
1W
100
BH27-00027A
TIP29C
R558
H_SIZE
B
TIP30C
150nF
100V
PQ551
E
C
B
C551
3W
100
Q552
E
C
MO
SUPLVAL
1/4W
1.2K
R402
R401
1KV
100pF
C559
HS401
470K
1/2W
CC
R550
+30V
R525
1/4W
1.2K
MF
47uF
50V
R524
X-RAY
H_LIN
H_SUBSIZE
C562
8.2K
1/4W
MF
18K
1/4W
MF
R490
R457
10K
1/8W
EY550
1
D478
1N4148
R468
1
SNAME
4.7K
1/8W
1
SNAME
EY440
CN421
1
slcon1p
EY441
1
SNAME
EY420
1
slcon1p
1/6W
12K
EYE1.5
R561
1N4148
CN420
D561
1/6W
5.1K
R560
R527
1N4148
D522
R526
56nF
100V
P
1/6W
6.2K
C309
3W
100
1/8W
10K
MO
H/V_ADJ
R531
C503
470uF
16V
R557
MF
1/4W
470K
D501
33uH
L501
C501
56nF
100V
1N4148
P
50V
100nF
C507
D503
1N4148
1/6W
390K
910111213141516
R504
TL494CN
6
54321
IC501
D532
1N4148
C509
47UF
16V
87
50V
10nF
C505
10nF
100V
C506
220nF
63V
MP
C502
5.1K
1/6W
P
1/6W
5.1K
8.2K
1/8W
R509
R506
1/8W
R505
5.6K 1/6W
R507
R502
12K
1/6W
1K
R503
C508
47UF
16V
C504
H_DRIVE
1.5K
1/8W
R501
R409
100uF
16V
MO
R532
SUPLVAL
HS409
MF
R508
1.2
3W
H_DRIVE
D505
GUR460L-5700
S3
S4
250V
100NF
C533
MP
RGP02-16E
D508
UF4004
2SK2761-01MR
S
G
D
Q504
C530
D509
47uF
2.2uF
350V
1
EYE1.5
50V
C512
EY415
1EYE1.5
EY503
6.8
50V
C531
3.3uF
1
EY504
1/4W
R511
1
EY301
SNAME
1
EY405
EY509
EYE1.5
1
EYE2.2 EYE2.2
1
EY302
EYE1.5
1/6W
R404
220
Q401
S
G
D
SKS4N20
Q402
E
C
B
2SC5583
D402
SB540L-5705
D403
SDS10U150S
150
BD401
1.2UH,3.5_5.7MM
UF4007
R410
2WMO
S
G
D
Q405
+29V
D405
D406
SKS10N20
1.2K
UF4007
1.2K
1/6W
1/8W
R432
R431
1.2K
R430
Q404
S
G
D
SKS10N20
1/6W
Q406
S
G
D
SKS10N20
250V
560nF
C415
500V
1NF
C410
MPS
330
1/2W
R435
R427
ABL
R425
18K
18K
1/6W
R424
1/6W
8 9
5 4 3 2 1
EI-2820
1/6W
18K
T402
6 7
1 EY505
EY5071
EYE1.5
EY508
1EYE1.5
EYE1.5
1
EYE2.2
EY411
1
EYE1.5
D401
+80V
EY502
SK530
SSG-102B2
UF4004
1
slcon1p
slcon1p
1
CN408
slcon1p
1
TCO
CN407
100V
100uF
C401
B
Q503
EYE1.5
1EY409
2N3906
E
C
1/2W
180K
R541
1/2W
47
R556
1/6W
120K
R552
1/6W
4.3K
R551
4.7K
1/2W
R555
1/6W
12K
R545
1N4148
1N4148
D552
D551
R553
D553
1N4148
+12V
1/4W
1.5K
SKS10N20
S
G
DQ407
S1
H_FOCUS
R429
P
1/6W
1.2K
18K
R426
400V
68nF
C418
C540
1/6W
E
C
BQ540
1nF
1KV
R546
+12V
+350V
KSP44
C552
1K
1/8W
2.2uF
220nF
100V
MP
MO
C513
350V
C408
3W
10
R408
2.5KV
2nF
C409
PP
2nF
2.5KV
PP
KSC2316-Y
E
C
B
Q553
R412
47 1/2W
1/2W47
vr3
VR401
R413
18K
R428
1/8W
1.2K
R433
1/8W
SKS10N20
S
G
D
Q403
MPS
250V
1uF
C414
6
5
4
3
2
1
T501
S5
15
13
14
11
12
10
9
8
7
2N3904
EYE1.5
Q502
E
C
B
EY4041
SNAME
EY511
1
SNAME
1EY501
R411
D404
UF4007
C416
CE 5W
75ohm
1
EYE1.5
MPS
250V
300nF
MPS
EY510
250V
150nF
C417
MPS
400V
120nF
C411
120nF
C413
MPS
L402
400V
5
6
8
4
1
T502
EE 1916(5P)
V_FLB
V_SYNC_OUT
1/4W
33K
R515
5.60NF
100V P
C310
V_OUT
1uF
63V
MP
C306
2K
1/4W MF
R314
6.2K
1/4W
MF
R302
+14V_V
1/2W
R306
1
Q301
E
C
B
KSC945-Y
-14V
D302
1N4148
8.2K
1/6W
R309
3.3K
1/6W
R310
+30V
1K
1/6W
R311
C301
35V
220uF
C303
1000uF
16V 100
1/6W
R307
P
50V
1uF
C304
R308
100V
4.70NF
C305
R301
10K
1/6W
R313
15K1/4W MF
C532
S2
8.2K
1/4W
MF
D407
2000NF
100V
P
C403
UF4004
3
2
1
T401
1nF
500V
EI-2519
5
6
7
8
4
1 EY401
EY4021
SNAME
SNAME
1
EY413
SNAME
1 EY403
1
SNAME
SNAME
R547
1K
1/8W
EY412
1
CN411
1
CN412
1501/4W
EY5061
SNAME
R315
1
SNAME
SNAME
1
EY410
R305
EY408
330
1/2W
1/4W
1.5K
0.9
2W
WW
R303
R405
Q408
E
C
B
KSC945-Y
KSC945-Y
E
C
B
Q409
Q410
E
C
B
KSC945-Y
KSC945-Y
E
C
B
Q411
Q412
E
C
B
KSC945-Y
D504
1N4148
GUR460L-5700
R510
470
1/6W
P
D507
C404
27nF
100V
D530
R406
10
1/2W
G1
-210V
RGP02-12(T)
1N4936GP
D521
AA
P
2N6520
E
C
B
Q520
250V
15nF
C520
1SS244
D520
1/4W
R520
75K
1/4W
R521
270K 1/4W MF
R522
150K
+6.3V
1/2W
R523
1M
-210V
ZD520
UZ-4.7B
C405
V_FLB
100V
330nF
C407
MP
330nF
100V
MP
0.33
1W
WW
R512
1nF
2KV
PP
C511
3
IC301
D301
UF4001(T)
Vin-
10
Vin+
2
Vcc_L VOUTPUT
6
VCC_H
95
GND
4
F.G
87
R304
1
C516
330
1/2W
HS301
220uF
100V
1K
1/8W
heat_sink
R420
R434
1K
1/8W
1/8W
1K
R422
R421
R423
1K
1/8W
1/8W
1K
UF4001(T)
D408
R516
33
7W
CE
MO
1.2
3W
R407
3W
100K
R414
MO
1/2W
1.2
R316
FU
1.2
1/2W
FU
R312
D540
16V
1000uF
C308
1N4148
R460
C550
100pF
50V
1SS244
MF
1/4W
12K
P
D454
1/4W
4.7K
C460
27NF
100V
18K
+12V
R461
50V
6.8uF
R462
MF
1/4W
C450
100uF
16V
C451
1.5K
E
C
B
Q450
1/8W
R454 1N4148
D453
KSA733-Y
D451
D452
1N4148
1N4148
R452 R451
4.7
1/4W
330K
1/6W
R456
R455
12K
1/6W
C457
330pF
100V MO
75K
1/6W
C453
C458
10NF
50V
MO
50V
680pF
MO
50V
100nF
C459
R453
18K
1/8W
PP
1nF
C456
876 543 21
KA3843B
100V
1N4148
IC402
D450
2
1
slcon3p
TILT
EW_OUT
R450
75K
1/6W
MO
CN409
3
R440 R441
33
2W
5
0-5v_2
4
0-5v_1
IC403
+12V
1/2W
33
Vcc2
2
Vcc1
1
6
GND3
9
GND2
12
GND1
11
10
8
7
AN5451
Vcc3
3
R668
P
4.7nF
100V
C452
BD532
1/6W
750
H_FLB
B
C467
2KV
100pF
C468
V_FOCUS
P
100V
1.2nF
R459
180K
R542
MF
1/4W
24K
CC
1/2W
470K
R543
1/2W
C514
C412
220nF
63V
MP
680PF
1KV
3.3uF
50V
C440
HS504
EY512
1
EYE1.5
L502
heat_sink
MP
100V
330nF
C406
4.7uH
C312
1uF
63V
MP
P
100V
100nF
C307
100nF
50V
MO
C302
1KV
220pF
C461
slcon4p
500V
100pF
C402
+5V
CN401
4
3
2
1
100
1/2W
R465
+210V
1/2W
FU
R467
2.2
D456
UF5404L-5709
10NF
500V
C465
C462
250V
10uF
C466
27nF
100V
P
C464
1/4W
1K
R463
C
B
Q452
33nF
250V
P
C
B
Q451
KSC945-Y
E
E
C
B
KSA733-Y
KSC945-Y
E
Q453
+12V
HIGH_VOLTAGE
+12V
1/4W
1K
R464
25V
47uF
C463
UZ12BM
1/4W
2.7K
R466
S
G
D
Q454
ZD450
1.5K
1/8W
SFP9634
270K
1/4W
11
2
3
7
5
6
4
8
12
14
CF21M* 10-3
10 Schematic Diagrams
10-1-2 Main Part Schematic Diagram

10 Schematic Diagrams
10-4 CF21M*
14 580 V (T501, #1)
CH1 P-P = 580 V CH1 RMS = 278.2 V
11 IC301, #6 12 Q504, Gate
8T402, #8
2IC402, #6
CH1 P-P = 10.96 V CH1 RMS = 6.180 V
3Q454, drain 4Q401, Gate
CH1 P-P = 11.6 V CH1 RMS = 6.944V
5Q401, Drain 6Q402, Base
7Q402, Collector

DEGAUSS
CC
heat_sink
HS601
+14V_I
EYE1.5
1
C652
220UF
16V
D644
RG10Z-V1
1
D701
MUR460
50V
C620
1uF
EYE2.2
EY609 1
D647
RG4C
1/8W
1K
EYE2.2
EY608
R673
1K
1/8W
R677
C
E
Q672
KTA1281-Y
B
1
D670
BZX79C5V6
EY612
EYE2.2
R721
47K
1/6W
C703
560PF
50V
+14V
LTV817M-SM
IC620
ANODE
12
34
slcon1p
CN602
+6.3V
2
SYNC
DP308P
IC601
DRAIN 1 F_B
4
GND
CN601
slcon3p
1/2W
P
100V
15nF
C628
450V
220uF
C607
D604
UF4007
D704
1N4148
CN603
slcon1p
C E
Q670
KTA1281-Y
B
CN604
slcon5p
5
4
3
2
1
B
C
E
MO
50V
100nF
C656
5
Vcc
3
BD602
D621
1N4148
240K
CC
1/2W
1000uF
16V
BB
+5V
500V
10nF
C629
1 5
10 8
6
R609
1.2
C654
G5PA-1
RL601
1
2
3
4
47K
1/6W
C625
16V
100uF
1/4W
D620
1N4148
R705
1/2W
680K
R626
R655
470K
1/2W
CC
16V
100UF
C650
33
1/2W
1
R649
470K
1/2W
CC
SNAME
D642
UF1G
1/6W
10
R712
R672
D640
UF4004
BH26-30302S
T620
1
2
3
5
4
EY611
EYE2.2
R674
10K
1/8W
1/8W
2K
R631
R603
MTZJ27D-T-72
ZD601
MP
C701
1000nF
275V
EER4042
1/8W
4.7K
R651
T601
Q601
KSC1008-Y
B
C
E
1/2W
100
R656
MC7805CT
R607
120K
1/2W
IC650
P
100V
100nF
C621
+14V_I
BD652
B
0.56
1/2W
R629
1/6W
6.8K
+29V
D605
UF4007
R711
UZ16BM
ZD706
680K
1/2W
C649
+14V_I
L601
BD651
B
C708
22uF
50V
1
IC621
TL431CLP
1/4W
220
R624
MF
200
1/4W
R627
FUSEHOLDER
CATHODE
COL
EMT
+12V
KSC945-Y
Q671 B
C
E
1/6W
10
R703
21
4
D601
D5SB60
R704
GND
INOUT
CN608
slcon1p
L701
R675
2.2nF
125V
C604
D646
UF4004
R670
C644
220uF
100V
UZ12BM
ZD705
125V
2.2nF
HSD701
heat_sink
HSQ701
heat_sink
SNAME
EY705
EY704
SNAME
1
1EY61
EYE2.2
1
2
3
EY607
EYE2.2
1
1KV
100pF
C612
1
SNAME
EY616
+12V
EYE2.2
EY610 1
R605
1.2K
1/4W
MO
50V
100nF
C609
C614 180K
1W
CC
P
100V
4.7nF
C622
R602
1/2W 150K
HS651
heat_sink
50V
100nF
C653
19NS 4.5ohm
1. RESISTANCE IS SHOWN IN OHM K=1000, M-1000000.
"THIS EQUIPMENT CONTAINSSAFETY
PRIMARY GROUND
TYPES IDENTICAL TOTHOSE IN THE ORIGINAL CIRCUIT
MP:C-M.POLYESTER
WITHOUT NOTICE FOR FURTHER IMPROVEMENT.
(Wiyhout PFC use
105C
5. THIS SCHEMATICDIAGRAM IS SUBJECT TO CHANGE
GROUND (SYMBOL )AND PRIMARY CIRCUIT.
CRITICAL COMPONENTS ONLYWITH MANUFACTURERS
17NS/19MS 10ohm
1. THE AREAS MARKED WITH A IN THE SCHEMATIC
OR SPECIFIED IN THE PARTSLIST. BEFORE REPLACING
MPP : C-METAL POLYPROPYLENE
NOTE
WW:R-WIRE WOUND
105C
NE REMP LACER LE FABRICANT DONT LE FONCTIONNEMENT EST CRITITE
WITH PFC
07N60S5
(MULTI:2SK761)
WHICH HAVE SPECIALCHARACTERISTICS IMPORTANT
MC33260P
105C
RATED VOLTAGE OF CONDENSER NOT NOTED IN
RATED POWER OF RESISTORNOT NOTED IN SCHEMATIC
READ "X-RAYRADIATION PRECAUTION,SAFETY
3. ABBREVIATIONAND SYMBOL
ANY OF THE COMPONENTS, READ CAREFULLYTHE "PRO-
105C
INDICATED POINTTO PRIMARY GROUND ( ).
WARING: BEFORE SERVICING THIS CHASSIS,
2)DO NOT USE YOUR INSTRUMENT BETWEEN SECONDARY
33269T
CF21MS=JUMPER
AREAS OF THE SCHEMATICARESAFETY REPLACE SAFETY
POUR LA SECURITE TOUTESLESPIECES INDIQUEES DANS LES ZONES
DIAGRAM AND THE PARTSLIST DESIGNATE COMPONENT
PRECAUTION, PRODUCT SAFETY NOTICE".
19"FST DEL
WARNING:
CC:R-COMPOSITION
QUE PAR DES PIECES RECOMMANDEES PARLE FABRICANT CONSULTER
JP709/710/711/712)
CEPHEUS PROJECT POWER CIRCUIT
1)DO NOT USE YOUR INSTRUMENT BETWEEN PRIMARY
OTHER D3SBA60
OTHER 9ohm
19NS D5SB60
4. THE SECONDARY VOLTAGE IS READ WITH SSVM FROM
TO DEGAUSSING COIL
CRITICAL COMPONTSALL PARTS SHOWN IN THE SHADED
SECONDARY GROUND
MF: R-METAL FILM
19NS
OTHER ER3942
PP:C-POLYPROPYLENE
AVERTTISSMENT: " CE RECEPTEUREST EQUIPE DE COMPOSANTS CRITIQUES
105C
17/19NS
FU:R-FUSIBLE
FOR SAFETY AND SHOULD BE REPLACED ONLYWITH
(JP691)
105C
PFC CIRCUIT
NPO:C-NPO
P:C-POLYESTER
OMBREES DU SCHEMA SONT CRITQUEPOUR LASECURITE DE LAPPAREIL
MO:C-MONOLYTIC
THE PRIMARY VOLTAGEIS READ WITH SSVM FROM
DUCT SAFETY NOTICE".
105C
GROUND (SYMBOL )AND SECONDARY CIRCUIT.
2. CAPACITANCEIS SHOWN UF AND NOT NOTED
AC INPUT
450V 220uF
MO:R-METAL-OXIDE
SCHEMATIC DIAGRAM IS 50V.
2. DRAWINGA NUMEROUS MEASUREMENT OF THIS MONITOR
CAPACITANCEIS SHOWN PF. 1UF=1000000PF.
105C
RECOMENDED PARTSLIST FOR EXACT REPLACEMENTS".
T:C-TANTALIUM
CAUTION
90V ~ 264V
OTHER 470NF
INDICATED POINTTO SECONDARY GROUND ( )
DIAGRAM IS 1/6W.
MATTERSTHAT DEMAND SPECIAL ATTENTION IS FOLLOWING
LA NOMENCLAYUREDES PIECES POUR TROUVER."
H_DRIVE
4
Vin 1 Vout
2
R702
MF
9.1K
125V
2.2nF
C603
TH601
SKC-084 HS602
heat_sink
1/6W
220K
R625
500V
10nF
C610
+80V
TVR10G
D606
R601
150K
1/2W
RGP02-12(T)
D650
EY615
C602
1000nF
275V
MP
EY601
SNAME
1.2UH,3.5*5.7MM
BD603
B
heat_sink
HS606
EY604
EYE2.2
R706
680K
1/2W
1/2W
1
-14V
3W
0.33
T701
ER-2828
3
250V
47UF
C646
1
R701
WW
IC651
KA78R12
GND
3
Vc
EYE1.5
EY614
1
heat_sink
HS60
FU
1/4W
10
A
K
R
1/4W
390
R650
1KV
220pF
C611
D702
TVR10G
MF
1/4W
2K
IM-L03A2-P
LC601
2 4
1
P
100V
10nF
C655
+210V
R606
100K
1/2W
1
ZD631
P6KE200ATA
ZD630
MTZ7.5C
470pF
1KV
J503P61D4R5Q270S
POS601
3
EY6
EYE2.2
1
31DF6
D645
R604
10K
1/8W
12
11
10
6
7
8
9
18
17
16
15
14
13
1
2
3
4
5
R688
1/8W
10K
1N5397GP
D703
KSC945-Y
Q620
EYE1.5
EY613
1
CC
240K
R671
P
100V
22nF
C624
EY703
1
BD604
1
MO
C706
100nF
50V
1000uF
C641
16V
C627
2.2nF
100V
P
6
OUT 7
SENSE
45
SYNC
2V
VCC8
IC701
3CT
1FEED
GND
R621
330
1/8W
C642
1000uF
16V
BD653
1.2UH,3.5*5.7MM
B
470UF
35V
C645
EY602
SNAME
1
2.7K
1/6W
UF5404
D641
Q701
D
G
S
CN609
slcon1p
C643
470UF
16V
R623
C705
1nF
100V
P
1/2W
56K
R644
1N4148
D602
1
C702
220nF
63V
MP
+12V
R620
1/8W
2K
R630
1/4W
270
MO
3W
6.8K
R608
1
125V
2.2nF
C613
+14V
R628
EYE2.2
EY603
1
FG601
50V
10NF
C651
2.2K
1/8W
R676
+14V_V
R622
1/8W
1.5K
50V
33uF
C608
1
CF21M* 10-5
10 Schematic Diagrams
10-1-3 Main Part Schematic Diagram

10 Schematic Diagrams
10-6 CF21M*
1368 V (IC601, #1)

ABL
VSSA
INT
TEST
VCC
SCL
DC_FOCUS
ROSD
R-OUT
R-IN
Delete
SDA BCT
BOSD
BOUT
B-IN
VICTL
H/V
GOUT
RCT
R-OUT
SDA
FBLK
CLAMP
B-OUT
BIN
GOSD
Vcc3
RCLP-C
VREF
KA2503
CG control
G1
Vcc1
GIN
VDDA
6.3V
1.2uH
105C
2412T
B-OUT
VCOIN
BLK
V_BLK
SCREEN
CLP
Highlight Zone
VSS
G-OUT
Use JP103/JP105/JP106
HFLB
SDA
GND3
VCC
G-OUT
12V
GND
ACL
G-IN
80V
GCLP-C
B/U
Vcc2
OSD-SW
H_SYNC_OUT
BCLP-C
1.2uH
GND
RIN
VFLB
CLAMP
ROUT
AQ17NS
21" FST
Delete
SCL
BIN
GCT
GND
GND
105C
GIN
H_FLB
GND
50V
100nF
C126
(3704-001142)
(3711-002348)
(1201-001693)
RIN
gnd1
SCL
5V
X 3
VDD
12V
+5V
R141 1/10W330
MO
C131
100nF
25V 50V
1uF
C132
D101
1N4148
1N4148
DR01
1
R120
10K
1/10W
P
100V
100nF
CB06 SNAME
EY7
C137
4.7uF
50V
B
C
E
CRT1
R117 100 1/10W
Q103
2N3904
Q101
2N3904
B
C
E
80V
MO
25V
100nF
C119
ZD103
BZX79C5V6
50V
4.7uF
C120
DG03
MO2W56R147
EY1SNAME
1
BAV21
1/10W
2.7K
R113
12V
1/10W
100
R111
BAV21
DB04
89
G2G3
10 11
G4
GK
2
H
45
H2IC1
67
IC2
1RK
j_c11p
SK106
3BK
G1
BD101
BD102
BD106
R129
12K
1/10W
RB04
MO
C128
10nF
50V
MO
25V
100nF
C105
1/10W
47K
R115
22K
1/10W
160V
1uF
CB04
L101
0.47uH
C141
100UF
16V
L106
4.7uH
C144
10NF
100V
P
RB12
33
1/2W
1
2
C133
1uF
50V
CN104
slcon2p
1
2
slcon2p
CN105
12V_B
16V
100UF
C115
1/10W
22
RG02
16
2M
15
2N
P
100V
100nF
CR06
24
2E
23
2F
22
2G
21
2H
20
2I
19
2J
18
2K
17
2L
7
1G
8
1H
9
1I
10 1J
11 1K
12 1L 13
1M
14
1N
S5D2509X09-S0
IC103
11A
2
1B
3
1C
4
1D
5
1E
61F
1.5uH
L105
100nF
CR01
25V
R128
5.6K
1/10W R130
6.8K
1/10W
E
C102
6.8nF
50V
KSC945-Y
Q106
B
C
22
1/10W
RR08
22
1/10W
RB02
DR03
C136
10nF
50V
MO
1N4148
DG02
BAV21
R153
R143
1/10W
220
1/10W
10M
160V
1uF
CG04
1.2UH,3.5*5.7MM
L103
B
16V
220UF
C122
RG11
100
1/6W
RG01
1/10W
75
R118
R146
10
1/2W
RR03
470
1/10W
1/10W
100
MO
25V
100nF
CB02
RB08
12V
RG08
22
1/10W
1/10W
22
BD103
B
12V
1/10W
470
R135
6
R110 100 1/6W
CN101
slcon6p
1
2
3
4
5
+5V
BD105
RG07
20K
1/6W
R116
100
1/10W
1/10W
2.2K
R119
+5V
R152
10M
1/10W
RB01
1/10W
75
R104
100
1/6W
CB03
100nF
25V
MO
C139
100UF
16V
MO
50V
100PF
C100
R122
1.5K
1/10W
390
1/10W
RR05
80V
1N4148
DR02
R127
BAV21
DG04
20K
1/6W
220
1/2W
R112
10K
1/10W
12V
RB07
MO
25V
100nF
C109
R114
10K
1/10W
R107
100
1/6W
SK102
DMS-200D
CG05
8pF
50V
MO
DB05
1N4148
1/10W10KR138
MO
25V
100nF
CG02
B
1/10W
R103
6.8K
6
1
Vcc1
2
Vcc2
3
Vcc3
BD109
0-5v_1
4
0-5v_2
5
7
8
10
11
GND1
12
GND2
9
GND3
16V 100UFC143
IC106
AN5451
CN14
1
C134
100nF
25V
MO
MO
50V
15PF
C108
R106
+5V
RB06
1/10W
100
6.3V
1/4W
68
1/8W1KR108
1nF
C125
2KV
1N4148
DB01
16V
470uF
C112
+5V
+5V
25V
100nF
CB01
0.12uH
LG01
L102
1.5uH
L107
1.5uH
KTA1281-Y
Q105
B
C E
12V_B
DB03
BAV21
1/10W
4.7K
R124
1/2W
10
R145
500V
4.70NF
C127
DR05
1N4148
SNAME
EY5
1
C111
100nF
25V
MO
R151
10M
1/10W
C
E
heat_sink
HS2
Q104
2N3904
B
R109 100 1/6W
1/4W
270K
1/10W
1K
R134
150
1/10W
RG09
G4
11
2GK
4
HH2
56
IC1IC2
7
RK
1
RG06
SK105
j_c11p
BK
3
8
G1G2
910
G3
1/10W
R131
1K
+5V
C130
100PF
50V
MO
MO
25V
100nF
CR02
1
100V
10uF
C118
MO
50V
680pF
C101
EY8
SNAME
RB03
470
1/10W
P
100V
10nF
C124
12V_B
C107
10nF
50V
MO
RB05
390
1/10W
R137 10K 1/10W
MO
25V
100nF
C110
100
1/10W
DG01
1N4148
EY6
SNAME
1
12V_A
R105
2N3904
Q102
B
C
E
DR04
BAV21
CN103
slcon4p
1
2
3
4
BD108
1.2UH,3.5*5.7MM B
5V
16V
100UF
C103
16V
220uF
C113
SK103
DMS-200D
R133
1/10W
1K
R144
3.9K
1/10W
75
1/10W
RR01
S-23(1KV),5MM
SK108
R123
6.3V
C138
47uF
16V
16V
470uF
CC
1/4W
30M
B
C104
50V
100pF
C114
1.2UH,3.5*5.7MM
BD104
4
26
3
11
25
23
22
24
21
8
19
18
6
20
7
5
27
28
10
16
15
9
17
31
14
12
1
2
32
IC102
29
30
13
1/10W
100
RR06
CR05
8pF
50V
MO
CB05
8pF
50V
MO
C129
100PF
50V
MO
CR03
100nF
25V
MO
R101
6.8K
1/10W
+5V
L100
27uH
+5V
RR04
1/10W
47K
+5V
C116
10uF
100V
VOUT2
3
VOUT3
5
22
1/10W
RR02
GND
7
GND1
2
4
GND2
VBB
10
VCC 6
VIN1
11
VIN2
9
VIN3
8
VOUT1
1
IC105
CG01
100nF
25V
CG06
100nF
100V
P
C140
100UF
16V
C142
100UF
16V
1/10W
470
R126
BD 111
B
100UF
16V
C117
10uF
100V
DB02
1N4148
C135
1/10W
100
RR11
R136
4.7K
1/10W
R102
12K
1/10W
2G
21
2H
20
2I
19
2J
18
2K
17
2L
16
2M
15
2N
1I
10 1J
11 1K
12 1L 13
1M
14
1N
24
2E
23
2F
22
1A
2
1B
3
1C
4
1D
5
1E
61F
7
1G
8
1H
9
+5V
IC101
1
1/10W
390
RG05
160V
1uF
CR04
C106
100nF
25V
MO
270K
+5V
SUPLVAL
HS102
RB09
1/4W
RR09
4D5
E
6
F
7
G
8
H
270K
1/4W
LM2480NA
IC104
1A
2B
3C
1/10W
SK104
DSP-301N
12V_B
5V
RG03
470
1/10W 47K
RG04
CN13
1
RR07
20K
1/6W
RR12
47
1/2W
CN12
1
R132
1K
1/10W
MO
25V
100nF
C123
SK101
DMS-200D
8
9
10
11
12
13
14
15
12V_B
1
2
3
4
5
6
7
R140 330 1/10W
slcon15p
CN102
50V
4.7uF
C121
1N4148
DG05
1/2W
47
LR01
0.12uH
LB01
0.15uH
RG12
R125
2.7K
1/10W
BZX79C5V6
ZD101
R139 1/10W330
1
MO
25V
100nF
CG03
L104
B
SNAMEEY2
R142 330 1/10W
80V
+5V
1.2UH,3.5*5.7MM
R121
47K
1/10W
R148 56 2W MO
SDA
V_BLK
H_FLB
G1
SCL
SDA
BCUT
INT
H_FLB
G1
H_FLB1
H_FLB2
RCUT
BCUT
GCUT
F_CONT
CLP
ACL
OSDSW
V_BLK
H_FLB1
H_CG
H_CG
V_CG
CLP
INT
V_BLK
SCL
ACL
BOSD
GOSD
ROSD
H_FLB2
ACL_ADJ
SDA
ACL_ADJ
OSDSW
SCL
V_CG
FOCUS
F_CONT
RCUT
GCUT
ROSD
BOSD
GOSD
OSDSW
19
15
20
CF21M* 10-7
10 Schematic Diagrams
10-2 Video Part Schematic Diagram

10 Schematic Diagrams
10-8 CF21M*
19 IC103, #5, 24
15
CRT Socket, Red, Green, Blue
20 R, G, B, Video

CF21M* 10-9
10 Schematic Diagrams
10-3 BNC Part Schematic Diagram
R
G
B
H
V
-BNC
D_SUB JACK
-BNC
-BNC
BNC JACK
R1
G1
GND
B1
R2
GND
G2
GND
B2
V1
H1
H2
H_O
R_O
VCC
G_O
S_IN
COM
CTL
B_O
V_O
V2
GND RIN
GIN
BIN
-BNC
-BNC
KA2507
(17" SHORT)
14 VCC
+5V
14 VCC
IC3-2
MC74HCT14AN
GND
IN 7
4
OUT
3
IN
VCC
14
MC74HCT14AN
IC3-1
GND
IN 7
2
OUT
1
IN
14 VCC
IC3-5
MC74HCT14AN
GND
IN
7
10
OUT
11
IN
IC3-6
MC74HCT14AN
GND
IN
7
12
OUT
13
IN
+5V
R137
1K
1/8W
CB53
100nF
50V
MO
MO
50V
100nF
CG53
+5V
E
CR53
100nF
50V
MO
+5V
C
E
QR52
2N5770
B
C
B
C
E
QG52
2N5770
B
+5V +5V
QB52
2N5770
+5V
+5V +5V +5V
UZ-6.2BM
ZD160
ZD159
ZD161
UZ-6.2BM
1
2
3
4
5
6
UZ-6.2BM
+3.3V
slcon6p
UPSTREAM
MO
50V
100nF
C160
5
C159
10uF
25V CN104
slcon5p
1
2
3
4
1/6W
15K
R155
+3.3V
1/8W
10K
R98
1
MP
63V
100nF
C96
+12V
EY104 1
EY105
SNAME
1
EY103
SNAME
1
SNAME
EY101
SNAME
1
SNAME
EY102
1.2UH,3.5*5.7MM
BD150
B
1N4148
DB53
UZ-6.2BM
ZD156
2
3
4
5
6
7
8
9
15
16
CN105
slcon9p
1
5
6
7
8
9
10
11
12
13
14
CN103
YBH254-16P
1
2
3
4
+12V
+5V
+5V_DDC
C132
50V
47PF
R99
1/6W
100
R154
R100
1/6W
33
47PF
50V
C133
120
1/6W
UZ-6.2BM UZ-6.2BM
ZD157
1P
1
ZD158
V
1P
1
H
R96
C95
47PF
50V
1/6W
100
100
1/6W
R95
C152
50V
47PF
C151
100nF
50V MO
25V
10uF
C98C97
100nF
50V
MO
+5V_DDC
1.2UH,3.5*5.7MM
BD151
B
1/6W
33
RB54
1/6W
10
RG54
10
1/6W
RB52
10
1/6W
RR54
RG52
1/6W
10
23 24
10
1/6W
RR52
13 14 15 16 17 18 19 20 21 22
2345
6789101112
BA7657S
IC1
1
1/6W
RB53
75 75
1/6W
RG53 RR53
1/6W
75
75
1/6W
RB51 RG51
1/6W
75 75
1/6W
RR51
R97
100
1/6W
DR52
1N4148
R160
33
R159
1/6W
RB55
+5V
1/6W
33
1/6W
22
22
1/6W
RR55
22
1/6W
RG55
25V
10uF
CB52
CG52
10uF
25V
CB51
10uF
25V
10uF
CR52
25V
10uF
CG51
25V
CR51
G 1
1P
B
1
10uF
25V
DB54
1N4148
1P
1N4148
DG53
12
13
14
15
DG54
1N4148
4
5
6
7
8
9
10
11
tpcon15p
D_SUB
1
2
3
UZ-6.2BM
ZD155
1
ZD151
UZ-6.2BM
1N4148
DR53
1P
R
1N4148
DR54
DB51 DR51
1N4148
DB52
1N4148
1N4148
DG52
DG51
1N4148
1N4148
UZ-6.2BM
ZD154
ZD153
UZ-6.2BM
ZD152
V_SYNC
H_SYNC
USB_DP
USB_DM
SELECTOR
USB_DM
USB_DP
UZ-6.2BM
SOG-OUT
SELECTOR
SOG-OUT
DDC_CLK
DDC_DATA
V_SYNC
H_SYNC
S_RASTER
S_RASTER
DDC_DATA
DDC_CLK