Siemens CR1, 21T3 Service Manual

21T3

SERVICE MANUAL

SPECIFICATIONS

Dimensions and weight CRT: 50 cm (21“) Visible diagonals: 50 cm Dot pitch: 0.24 mm (aperture grille) Maximal resolution: 1920 × 1440 pixels Preset picture size (for 4:3 modes): 388 mm × 291 mm Dimensions (W × H × D): 497 mm × 502 mm × 485 mm Weight: 30.5 kg Accessories: Power cable (1.8 m)

data cable (1.8m)

Storable display modes: 15 (3 of which are preset)

Electrical data Video: analogue, positive, 0.7 Vp-p,

75 Ohm

Synchronisation: Separate Sync. TTL

Composite Sync. TLL/Sync. on Green

Horizontal frequency: 30 kHz .... 130 kHz

Refresh rate: 50 kHz .... 170 Hz

Maximum pixel rate: 300 MHz Power supply: switches automatically

Power consumption: < 135 W (ON, Normal mode) (see power management): < 3 W (OFF mode)

Environmental conditions Environment class 3K2, IEC 721

Rated range of operation: 15 °C .... 35 °C

Humidity: 20 % .... 85 %

Limit range of operation: 5 °C .... 40 °C

Humidity: 20 % .... 85 %

Condensation must be avoided.

AEP Model

Chassis No. SCC-L33M-A

CR1

(multi-scanning)

100 V .... 240 V, 50 Hz - 60 Hz

CHASSIS

COLOR MONITOR

1.5 k

Ω

0.15 µF

AC Voltmeter (0.75 V)

To Exposed Metal Parts on Set

Earth Ground

SAFETY CHECK-OUT

After correcting the original service problem, perform the following safety checks before releasing the set to the customer:

1. Check the area of your repair for unsoldered or poorly-soldered connections. Check the entire board surface for solder splashes and bridges.

2. Check the interboard wiring to ensure that no wires are “pinched” or contact high-wattage resistors.

3. Check that all control knobs, shields, covers, ground straps, and mounting hardware have been replaced. Be absolutely certain that you have replaced all the insulators.

4. Look for unauthorized replacement parts, particularly transistors, that were installed during a previous repair. Point them out to the customer and recommend their replacement.

5. Look for parts which, though functioning, show obvious signs of deterioration. Point them out to the customer and recommend their replacement.

6. Check the line cords for cracks and abrasion. Recommend the replacement of any such line cord to the customer.

7. Check the B+ and HV to see if they are specified values. Make sure your instruments are accurate; be suspicious of your HV meter if sets always have low HV.

8. Check the antenna terminals, metal trim, “metallized” knobs, screws, and all other exposed metal parts for AC Leakage. Check leakage as described below.

LEAKAGE TEST

The AC leakage from any exposed metal part to earth ground and from all exposed metal parts to any exposed metal part having a return to chassis, must not exceed 0.5 mA (500 microamperes). Leakage current can be measured by any one of three methods.

1. A commercial leakage tester, such as the Simpson 229 or RCA WT540A. Follow the manufacturers’ instructions to use these instruments.

2. A battery-operated AC milliammeter. The Data Precision 245 digital multimeter is suitable for this job.

3. Measuring the voltage drop across a resistor by means of a VOM or battery-operated AC voltmeter. The “limit” indication is 0.75 V, so analog meters must have an accurate low-voltage scale. The Simpson 250 and Sanwa SH-63Trd are examples of a passive VOMs that are suitable. Nearly all battery operated digital multimeters that have a 2 V AC range are suitable. (See Fig. A)

Fig. A. Using an AC voltmeter to check AC leakage.

21T3 (E) 2

WARNING!! NEVER TURN ON THE POWER IN A CONDITION IN WHICH THE DEGAUSS COIL HAS BEEN REMOVED.

SAFETY-RELATED COMPONENT WARNING!! COMPONENTS IDENTIFIED BY SHADING AND MARK ¡ ON THE SCHEMATIC DIAGRAMS, EXPLODED VIEWS AND IN THE PARTS LIST ARE CRITICAL FOR SAFE OPERATION. REPLACE THESE COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS PUBLISHED BY SONY. CIRCUIT ADJUSTMENTS THAT ARE CRITICAL FOR SAFE OPERATION ARE IDENTIFIED IN THIS MANUAL. FOLLOW THESE PROCEDURES WHENEVER CRITICAL COMPONENTS ARE REPLACED OR IMPROPER OPERATION IS SUSPECTED.

21T3 (E) 3

POWER SAVING FUNCTION

If your computer is equipped with power management, the monitor can support this function fully . Here the monitor does not distinguish between the individual energy-saving modes of the computer (standby mode, suspend mode and OFF mode), as it is capable of immediately switching into the mode with the highest energy-saving effect.

Stage ON Energy-saving mode

Power indicator glows green glows orange

Function Monitor Monitor

operating is dark

normally

Power consumption normal 135 W reduced to < 3 W

If your PC detects inactivity (no input) it sends an appropriate signal to the monitor to reduce the power consumption (energy-saving mode). The power indicator of the monitor changes colour to indicate the status change.

Once an input is mode at the PC the screen contents are redrawn and full power is restored.

For detailed information on how energy-sa ving mode operates refer to the Operating Manual or Technical Manual of your PC.

When the monitor is switched to the energy-saving mode by the po wer management system a power consumption of up to 3 W is maintained to feed the circuit for redra wing the screen contents.

T o completely switch of f the po wer consumption, switch off the monitor or the system unit.

21T3 (E) 4

DIAGNOSIS

Failure

+B failure

Horizontal / Vertical Deflection failure, Thermal protector

ABL protector

HV failure

Aging / Self Test

Out of scan range

Aging Mode (Video Aging) : During Power Save, press MENU button for longer than 2 second. Self Test (OSD Color Bar) : During Power Save, push button for longer than 2 second.

Amber → Off

(0.5 sec) (0.5 sec) Amber → Off

(1.5 sec) (0.5 sec)

Amber → Off

(0.5 sec) (1.5 sec)

Amber → Off → Amber → Off

(0.25 sec) (0.25 sec) (0.25 sec) (1.25 sec)

Amber → Off → Green → Off

(0.5 sec) (0.5 sec) (0.5 sec) (0.5 sec) Green (OSD indication)

+

Power LED

21T3 (E) 5

TIMING SPECIFICATION

MODE AT PRODUCTION RESOLUTION CLOCK — HORIZONTAL — H-FREQ

H. TOTAL H. BLK H. FP H. SYNC H. BP H. ACTIV — VERTICAL — V. FREQ (Hz)

V. TOTAL V. BLK V. FP V. SYNC V. BP V. ACTIV — SYNC — INT(G) EXT (H/V) /POLARITY EXT (CS) /POLARITY INT/NON INT

MODE 1 MODE 2 MODE 3

640 X 480 1600 X 1200

25.175 MHz 229.500 MHz

31.469 kHz 106.250 kHz usec usec

31.778 9.412

6.356 2.440

0.636 0.279

3.813 0.837

1.907 1.325

25.422 6.972

59.900 Hz 85.000 Hz lines lines

525 1250

45 50 10 1

23

33 46

480 1200

NO NO

YES N/N YES P/P

NO NO

NON INT NON INT

1280 X 1024

157.500 MHz

91.146 kHz usec

10.971

2.844

0.406

1.016

1.422

8.127

85.024 Hz lines 1072

1024

NO

YES P/P

NO

NON INT

48

1 3

44

2001.7.4 VER.

21T3 (E) 6

DISASSEMBLY

21T3(E) 1-1

1-2. A1 BOARD (C BLOCK) REMOVAL

CN318

1

A1 board (C BLOCK)

GND

CN315

21T3(E) 1-2

1-3. A1 BOARD REMOVAL

8

A1 board

3

Four screws (+BVTP 3 x 8)

7

Video case

4

Video shield

6

Screw (+BVTP 3 X 8)

5

Four screws (HEX)

CN315

1

Two screws (+BVTP 3 x 8)

2

Video block assembly

21T3(E) 1-3

1-4. BEZEL ASSEMBLY, H3 BOARD REMOVAL

Before removing the bezel assembly, secure

1

the picture tube by attaching two screws to the picture tube shield at the positions shown with an arrow (diagonal two places) to prevent the picture tube from falling. (Use the screws +BVTT 4 x 8 that fix EMI shield.)

Picture tube shield

3

Screw (+BVTP 4 x 16)

10

L1 blacket

2

Four tapping screws (5)

5

Bezel assembly

11

Magnetic MIU-221D sensor

7

Input button

CN1500

CN1401

CN1400

6

Three screws (+BVTP 3 x 10)

8

H3 board

9

Two claws

4

Screw (+BVTP 4 x 16)

21T3(E) 1-4

1-5. D BOARD REMOVAL

4

Two screws (+BVTP 3 x 10)

3

Video block assembly

1

A1 board (C block)

Connector (4P)

5

6

Five screws (+BVTP 3 x 10)

CN605

CN701

Rear plate assembly

CN1601

CN1600

CN1103

CN1003

CN501

CN315

GND

2

Two screws (+BVTP 3 x 8)

8

D board

7

Screw (+BVTP 3X10)

Connector (4P)

CN602

CN601

GND

21T3(E) 1-5

1-6. SERVICE POSITION

1

Remove the D board.

2

Remove the Video block assembly.

3

Install the Adaptor board (XT MOUNT) (A-1391-123-A).

4

Lay the Video block assembly.

Video block assembly

2

4

3

D board

1

5

Install the video block assembly.

Video block assembly

6

Put a box which is about 15cm in height under the D board to fix it. (Please disconnect the CN 701 first.)

D board

Box

21T3(E) 1-6

1-7. PICTURE TUBE REMOVAL

1

Anode cap (Refer to 1-8)

3

Neck assembly

CN2

GND

CN3

2

A1 board (C block)

4

Picture tube

CN2

CN1

21T3(E) 1-7

•REMOVAL OF ANODE-CAP

NOTE: Short circuit the anode of the picture tube and the anode cap to the metal chassis, CRT shield or carbon painted on the CRT, after

removing the anode.

•REMOVING PROCEDURES

b

a

1Turn up one side of the rubber cap in the

direction indicated by the arrow a.

2Using a thumb pull up the rubber cap

firmly in the direction indicated by the arrow b.

•HOW TO HANDLE AN ANODE-CAP

1Don’t scratch the surface of anode-caps with sharp shaped

material!

2Don’t press the rubber hardly not to damage inside of anode-

caps! A material fitting called as shatter-hook terminal is built in the rubber.

3Don’t turn the foot of rubber over hardly!

The shatter-hook terminal will stick out or damage the rubber.

c

Anode Button

3When one side of the rubber cap is

separated from the anode button, the anode-cap can be removed by turning up the rubber cap and pulling up it in the direction of the arrow c.

21T3(E) 1-8

1-8. HARNESS LOCATION

H3 board

CN1401

CN1500

CN1400

Magnetic sensor

Picture tube

D board

AC inlet (3P)

CN2

CN1

4P

CN3

CN1

5P

4P

L2 board

CN701

CN1103

CN602

CN601

CN315

CN1602

CN1600

CN1601

CN1003

CN604 CN1102

CN312 CN311

CN320

CN501

CN904

N board

A1 board

CN303

CN316

CN318

CN319

21T3(E) 1-9

SECTION 2

SAFETY RELATED ADJUSTMENT

When replacing or repairing the shown below table, the following operational checks must be performed as a safety precaution against X-rays emissions from the unit.

Part Replaced ([)

HV ADJ

RV901

Part Replaced (])

HV Regulator Circuit Check

D Board C925, IC901, R901,

R902, R905, R924, R925, R926, RV901, T901 (FBT)

• Mounted D Board

HV Protector Circuit Check

D Board C920, C923, D911,

D912, R903, R917,

Part Replaced (])

Beam Current Protector Circuit Check

D Board C930, D917, R921,

R932, R933, R935, T901 (FBT)

• Mounted D Board

N Board IC1001, RB1001

• Mounted N Board

* Confirm one minute after turning on the power.

a) HV Regulator Circuit Check

1) Turn the RV901 slowly, and adjustment so that high

voltage is in the specified range. [Specification]: 27.00 ± 0.05 kV

2) Check that the voltage of D912 cathode on the D

board is 17.0 V or more.

R918, R919, R920, R923, T901 (FBT)

• Mounted D Board

N Board IC1001, RB1001

• Mounted N Board

b) HV Protector Circuit Check

1) Using external DC Power Supply, apply the voltage

shown below between cathode of D912 and GND, and check that the RASTER disappers. [Specification]: 19.95 + 0.00/– 0.05 V

21T3 (E) 2-1

c) Beam Current Protector Circuit Check

1) Connect constant current source to a section between T901 (FBT) qa pin and GND, and check that the RASTER disappers when the specified current flows to the qa pin. [Specification]: 2.12 + 0.00/– 0.01 mA

21T3 (E) 2-2

SECTION 3

ADJUSTMENTS

Note:Hand degauss must be used on stand-by or power-off condition.

This model has an automatic earth magnetism correction function by using an earth magnetism sensor and a LCC coil. When using a hand degauss while monitor (LCC coil) is being operated, it sometimes gets magnetized, and the system may not work properly as a result.

•Landing Rough Adjustment

1. Display all white pattern (or black dot pattern).

2. Set contrast to 255.

3. Display green plain pattern.

4. Side back DY and roughly adjust green plain pattern to be centered on the useful screen with Purity Magnet.

5. Adjust DY tilt.

Note:Set ROTATION to 128 and LCC_NS to 128 when adjusting DY tilt.

6. LIghtly tighten the DY screw.

•Landing Fine Adjustment

Note: (1) After adjust W/B (9300k), measure the average of ∑IK with all

white video input, while CONTRAST is maximum and BRIGHTNESS is center. And adjustment shall be made so that the miss-landing become least after aging 2H with the IK 30% of measured value shown above.

(2) The magnetic field shall be BH = 0.

1. Put the monitor in helmholz coil.

2. Set as follows; LCC_SW = 0 (LCC Correction Current = 0) FUNCTION_SW bit1 = (Auto Degauss = On) CONTRAST = 255

3. Display green plain pattern.

4. Degauss the iron part of chassis with a hand degausser and degauss coil.

5. Degauss CRT face with a hand degausser again.

6. Input AC 230V to AC IN and turn the monitor off and on. Then autodegauss works.

7. Reset FUNCTION_SW bit1 to 0 (auto-degauss = off)

8. Degauss CRT face with a hand degausser again.

9. Attach wobbling coil to the specified place on CRT neck.

10. Put on landing sensor to CRT face.

11. Set LCC_SW to 12.

12. With landing checker, adjust DY position, purity, DY center and landing of the 4 corners.

(3) When adjusting at other than BH = 0, calculate the shifted value

from BH = 0.

13. Read VX and VY value which are the read out of magnetic sensor, and write to "LCC_VX_REF" and "LCC_VY_REF".

21T3 (E) 3-1

14. Adjust landing by LCC_NS, LCC_LT, LCC_LB, LCC_RT, and LCC_RB. Adjustment of registers shall be limited within the following range. LCC_NS: 128 ± 15 LCC_LT, LCC_LB, LCC_RT, and LCC_RB: 128 ± 40

Set LCC_SW to 13, and Perform Service Save.

<How to place wedge> Green plain crosshatch pattern

cd

a

a and b should be equal. c and d should be equal.

b

Plaster RTV to both sides for the upper wedge.

Make sure that they settle inside DY.

<Specifications> Adjust so that the green is within the specification given right. 4 corner adjust target : within ± 1

The red and blue must be within the specification given right with respect to the green.

A difference between red and blue must be within the specification given right.

0 ± 30 ± 7.5 0 ± 3 0 ± 30 ± 7.5 0 ± 3 0 ± 30 ± 7.5 0 ± 3

± 6 ± 6 ± 6 ± 6 ± 6 ± 6 ± 6 ± 6 ± 6

10 10 10 10 7 10 10 10 10

(µm)

15. Tighten DY screw within specified torque, and auto-degauss.

Note: Torque 22 ± 2 kgcm (2.2 ± 0.2Nm)

16. Adjust the vertical angle of DY to make top and bottom pins equal (a = b). The horizontal angle shall not be changed (straight). Settle DY upright without leaning, and insert wedges firmly so that DY shall not move.

Plaster RTV to one side for other wedges.

17. Adjust top and bottom pins correction VR.

18. Adjust the horizontal trapezoid distortion by DY horizontal trapezoid correction VR.

19. Check landing at each corner and in case not in specification, adjust landing of 4 corners with "LCC_NS", "LCC_LT", "LCC_LB", "LCC_RT", and "LCC_RB". The limitations of registers are shown below. LCC_NS: 128 ± 15 LCC_LT, LCC_LB, LCC_RT, and LCC_RB: 128 ± 40

20. Remove the sensor and wobbling coil.

21. Switch signals to R, G, and B, and then check that the pure colors have good color purity.

22. Fix purity magnets with white paint.

21T3 (E) 3-2

Connect the communication cable of the computer to the connector located on the D board. Run the service software and then follow the instruction.

IBM AT Computer

as a Jig

1-690-391-211A-1500-819-A

D-sub (9 Pin [female])

*The parts above ( ) are necessary for DAS adjustment.

mini Din (8Pin)

1

2

Interface Unit

3

•Convergence Rough Adjustment

(1) Display white crosshatch pattern. (2) Pile the convex parts of 6-pole magnet for convergence together. (3) Roughly adjust H.CONV and V.CONV with 4-pole magnet.

Purity

4-pole magnet 6-pole magnet 2-pole magnet

H.TRAP

4 Pin

3-702-691-01

3

Connector Attachment

To BUS CONNECTOR

4 Pin 4 Pin

TLV

XBVXCV

B

R

B

TLH

R

BBR

YBHYCH

R B

B R

R B

XCV

TLH

TB-PIN

•Convergence Specification

B

V

A

A B

0.20 mm

0.24 mm

21T3 (E) 3-3

•White Balance Adjustment Specification

•Focus adjustment

1. 9300 K

x = 0.283 ± 0.005 y = 0.298 ± 0.005

(All White)

2. 6500 K

x = 0.313 ± 0.005 y = 0.329 ± 0.005

(All White)

3. 5000 K

x = 0.346 ± 0.005 y = 0.359 ± 0.005

(All White)

•Vertical and Horizontal Position and Size

Specification

A

b

Adjust the focus volume 1 and 2 for the optimum focus.

Focus 1

Focus 2

FBT

b

a

a 1.8 mm b 1.8 mm

MODE

B

a

A B

4 : 3

388 291

21T3 (E) 3-4

4-1. BLOCK DIAGRAMS

CN309

HD15

5

15

10

14

9

4

3

13

CN307

HD15

CN311

DDC SCL1 DDC SDA1 DDC GND1 DDC SCL2 DDC SDA2 DDC GND2 H BLK INPUT SW IIC SCL IIC SDA HS OUT VS OUT ECO SW

8

2

12

7

1

11

6

5

15

10

14

4

9

3

13

8

2

12

7

1

11

6

SW

Q004

10 11

9 7 8 6

SW

Q005

SW

Q002

SW

Q001

1 4

SCL

15

SDA

16

HS OUT

2

VS OUT

3

ECO SW

13

(VIDEO AMP, RGB OUT)

A1

A

TO D BOARD CN1102

INPUT2(HD15)

INPUT1(HD15)

SECTION 4

DIAGRAMS

5

SDA

6

SCL

7

VCLK

IC007

ROM

IC008

INPUT SELECT

2

5

SDA

6

SCL

7

VCLK

IC009

ROM

IC006

INVERTER

985 6

3 4 11 10

1 2 13 12

B1

4

G1

6

R1

7

V1

8

H1

10

B2

12

G2

14

R2

15

V2

16

H2

13

SW

18 19 21

R OUT

G OUT

B OUT

SOG

SYNC IN

H OUT

V OUT

25

28

31

23

22

G.SYNC

SCL

SDA

SCL SDA HS OUT VS OUT ECO SW

7

R IN

4

G IN

2

B IN

22

SCL

23

SDA

4

SCL

3

SDA

12

HS OUT

13

VS OUT

27

ECO SW

23

CS IN

24

VS IN

25

HS IN

RGB PRE-AMP

OSD R

15 14 13 12

18 20 19 21

2

H FLY

OSD R

IC001

OSD G

OSD B

IC003

OSD

OSD BLK

V_DET

101718

7

11

AV

OSD BLK

R OUT

G OUT

B OUT

COF R COF G COF B

BLK

10

BLK

CLAMP

CLP

26

28

30

22 23 24

RCI GCI BCI

XTAL IN

15 14 13

32 31 30

14

8

R IN

9

G IN

11

B IN

RIN GIN BIN

BUFFER

Q101, Q201, Q301

IC002

RGB AMP

IC004

CUT OFF AMP

R_IK

12 11 10

X001

24.5MHz

5

R OUT

3

G OUT

1

B OUT

3

ROUT

5

GOUT

7

BOUT

G_IK

B_IK

7V

2

24

IC005

INVERTER

IC011

HEATER REG Vcc OUT

VADJ

5 3 1 7

CN315

KR KG KB HEATER+

CN318

KR KG KB HEATER+

5 3

V901

PICTURE TUBE

1 7

FVFCHV

G2

CN318

G2

1

4 5

B

TO D BOARD FBT

CN312

+B

+B +80V +12V

7V

3.3V 5V

1

+B

2

+80V

4

+12V

6

7V

7

3.3V

8

5V

9

C

TO D BOARD CN604

D

TO D BOARD CN1103

E

TO N BOARD CN1003

TO MAGNETIC SENSOR UNIT

CN1400

WAKE UP

KEY SCAN

LED1 LED2

INPUT SW

T_AMB

VY VX

CN1401

VX VY

2 3 4 5

8 12 13 14

3

2

(USER CONTROL)

H3

Q1402

TH1400

5V

S1403

INPUT1

INPUT2

S1401

LED DRIVE

Q1400

LED DRIVE

Q1401

S1400

S1402OKS1404–S1405

BRT+

+

G

A

CONT–

D1400

POWER

F

TO D BOARD CN1106

CN1603

GXSC

GYSC LCC NS IIC SDA

IIC SCL

4 5 6 7 8

L2

(CY, LCC)

4

3

6

7

1

2

21 20

+

–

+

–

IC1603 +

–

SDA SCL

IC1600

2

(1/2)

IC1600

8

(2/2)

4

IC1602

DAC

AO2 AO1 AO4 AO3

CN1601

CY4+

3

CY4–

4

CY3+

1

CY3–

2

CN1600

12LCC-NS (+)

LCC-NS (–)

IC1601

4

2

+

(1/2)

3

2 1 4 3

–

IC1601

6

8

+

(2/2)

7

–

IC1604

4

2

+

(1/2)

3

–

IC1604

6

8

+

(2/2)

7

–

1 2 3 4 5 6 7 8

CN1602

LCC-LT (+) LCC-LT (–) LCC-LB (+) LCC-LB (–) LCC-RT (+) LCC-RT (–) LCC-RB (+) LCC-RB (–)

LCC-NS

LCC-LT

LCC-LB

LCC-RT

LCC-RB

B-SS9342<AEP>-BD1-EPS05

21T3 (E) 4-1

G

TO D BOARD CN502

CN1101

H.DF

REFDC

XDC

HD OUT

HFBP

H BLK VS OUT HS OUT

PLL LOCK

IIC SDA IIC SCL

LCC_NS

HSAW_SW

H.LINBAL

GYSC

GXSC

V.DF

D.TILT

YSC XSC

HSHAPE

YDC POC

DCC2

VSAWN

1 33 37 34 36 15 11 13

7 20 19 22 24 16 21 23

2 38 39 40 32 35

5 12 10

DA

(DPU)

2

+

–

IC1102

AMP

3 4

IC1001

IC1101

1 2

3 21 23 35 36 38 39 40 41 43 44 45 48 49 50 51 52 53 54 63 27 26 64 58 59

5

7

+

6

–

61 62

DPU

HDF1 DCC2 XDC HDOUT FBP-IN H BLK V-IN H-IN LOCK-DET SDA SCL LCC_NS HSAW_SW PWM2 GYSC GXSC VDF VKEY YSC XSC HSHAPE YDC POC-OUT POC-IN DCC ASW1 ASW2 VSAWL VSAWH

I

TO D BOARD CN1104

CN1001

LB DET

IK SIGMA DDC SDA1 DDC SCL1

DDC GND1

DDC SDA2 DDC SCL2

DDC GND2

INPUT SW

IIC SDA IIC SCL

TXD RXD

KEY SCAN

LED1 LED2

PLL LOCK

POC

HV DET

ABL DET

G2

S6 S5 S4 S3 S2 S1

S0 PWR SW DGC SW

V.FBP

WAKE UP

ECO SW

22

32 34

7

9 11 13 15 17 29

1

3

2

4 35 33 31 39 40

6

8 10 12 14 16 18 24 26 28 23 25 30 36

5

P42/AN10

21

P41/AN09

51

P86/SDA1

52

P87/SCL1

71

P21/A1/A17

49

P84/SDA2

50

P85/SCL2

70

P20/A0/A16

80

P27/A7/A23

35

P80/SDA0/SI0

36

P81/SCL0/SO0

37

P82/TXD0

38

P83/RXD0

23

P42/AN11

79

P26/A6/A22

78

P25/A5/A21

34

P76/SCK0/INT3

31

P73/TB01N0/IN5

19

P57/AN07

20

P40/AN08

28

P70/TA1OUT

7

P36/TA7OUT

6

P35/TA61N

5

P34

4

P33/MAIT

3

P32/HWR

2

P31/WR

1

P30/RD

58

P04/AD4

60

P06/AD6

10

P61/CTS0

13

P51/AN01

9

P60/INT0

CPU

P54/AN04 P55/AN05 P56/AN06

P12/A10/AD10

P11/A9/AD9 P10/A8/AD8

RESET

X2

X1

16 17 18

IC1003

64 63 62

ROM

7

WC

6

SCL

5

SDA

4 3 2

CN1003

T_AMB VY VX

E

TO H3 BOARD CN1400

5V

46

41

43

I

O

G

X1001

16.9344MHz

IC1002 RESET

N

(

µ-COM

INVERTER

Q1001

)

B-SS9342<AEP>-BD2-EPS05

21T3 (E) 4-2

AC IN

DGC

I

TO N BOARD CN1001

G

TO DA BOARD CN1101

CN602

AC L

NC

AC N

CN601

DGC DGC

CN1104

LB DET

IK SIGMA

DDC SDA1

DDC SCL1 DDC GND1 DDC SDA2

DDC SCL2 DDC GND2

ECO SW

INPUT SW

IIC SDA

IIC SCL

TXD

RXD

WAKE UP

KEY SCAN

LED1 LED2

PLL LOCK

POC

HV DET

ABL DET

G2 S6 S5 S4 S3 S2 S1

S0 PWR SW DGC SW

V.FBP

CN502

IIC SCL

IIC SDA

VSOUT HSOUT

H BLK GXSC GYSC

LCC NS

PLL LOCK

POC

H.DF

V.DF

VSAWN

DCC2

H.LINBAL

HSAW_SW

HSHAPE

REFDC

HD OUT

YDC

HFBP

XDC

D.TILT

YSC XSC

1 2 3

1 4

32 34

7

9 11 13 15 17

5 29

1

3

2

4 36 35 33 31 39 40

6

8 10 12 14 16 18 24 26 28 23 25 30

19 20 11 13 15 21 23 22

7

5

1

2 10 12 16 24 32 33 34 35 36 37 38 39 40

F601

THP602

IIC SDA

IIC SCL

TXD

RXD

WAKE UP

KEY SCAN

LED1 LED2

PLL LOCK

POC

HV DET

ABL DET

G2 S6 S5 S4 S3 S2 S1 S0

PWR SW

DGC SW

V.FBP

IIC SCL

IIC SDA

VSOUT HSOUT

H BLK GXSC GYSC

LCC NS

PLL LOCK

POC

H.DF

V.DF

VSAWN

DCC2

H.LINBAL

HSAW_SW

HSHAPE

REFDC

HD OUT

YDC

HFBP

XDC

D.TILT

YSC XSC

+15V +15V

T601 :LFT

RY603

RELAY DRIVE

Q611

IIC SDA IIC SCL VS OUT HS OUT H BLK

TXD RXD

WAKE UP KEY SCAN LED1 LED2

GXSC GYSC LCC NS IIC SDA IIC SCL

11 10

9 8 7 6

13

4 16 15

3

2

1

4

3

2

3

4

5

8

4

5

6

7

8

S601

CN1102

DDC SDA1 DDC SCL1 DDC GND1 DDC SDA2 DDC SCL2 DDC GND2 ECO SW INPUT SW IIC SDA IIC SCL VS OUT HS OUT H BLK

CN1101 TXD RXD

CN1103

WAKE UP KEY SCAN LED1 LED2 INPUT SW

CN1106

GXSC GYSC LCC NS IIC SDA IIC SCL

TO A1 BOARD CN311

ECS

TO H3 BOARD CN1400

TO L2 BOARD CN1603

9

11

13

14

15

16

3.3V

5V

1

2

4 1

H DF OUT Q701-705

V DF OUT Q706, 707

T501 :HDT

17

7

6 14 11 12 18

+15V

IC640

+B DETECT ERROR AMP

D650

D652

IC401 V OUT

1

+

OUT

7

–

IC501 PWN CONT

SAWR

ERRIN REFIN HDIN MIX– MIX+ VREG9

12

IC654

12V REG

5 3 6

PWMOUT

MIXOUT

ERROUT

T701 :DFT

BUFF Q507

10

+B

+80V

+15V

+12V

-15V

7V

5V

3.3V

H OUT

Q505

3

9

H-SIZE FILTER SW

Q523

D.TILT

XSC

3.3V

YSC

XDC YDC REFDC

14

11 12

+B

HV REG SW

HV DRIVE Q903-904

G2 OUT

Q905

G2 MUTE

Q906

H-SIZE FILTER SW

Q524

IC701 CY AMP

3

INA–

4

INA+

6

INB+

7

INB–

IC702 CY AMP

5

–IN A (X)

4

+IN A (X)

3

+IN B (Y)

2

–IN B (Y)

10

STBY

IC901 HV CONT

H SAW GEN

+

–

Q901

IC503 AMP

5

7

+

6

–

G2 MUTE

Q907

Width

+

–

HV OUT

Q902

PIN DRIVE Q508-509

IOUTA

OUTA OUTB

IOUTB

OUT A (X)

OUT B (Y)

5

3

10

T902 :HRC

DEFLECTION , HDF, VDF,

D

HV, POWER SUPPLY

IC703

1 2 8 9

6

1

3.3V

ROTATION DRIVE

1

+

2

–

ROTATION

4

10

9 8 7 6 5 4 3 2 1

CN701

ROTATION+ ROTATION– XSC– XSC+ YSC– YSC+ XDC– XDC+ YDC– YDC+

CN604

+B

1

+B +80V +12V

7V

3.3V 5V

T901

4

1

2

8

6

:FBT

TO

PICTURE TUBE

HV

17

13

TO

FV

PICTURE

TUBE

14

15

16

FC

PICTURE

TUBE

11

12

TO

+B

2

+80V

4

+12V

6

7V

7

3.3V

8

5V

9

C

TO A1 BOARD CN312

CN510

G2

1

B

V DY

L510

+B

PIN OUT

Q506

:HOC

L509

:HCC

S501

(RASTER CENTER TAP SWITCH)

CN501

V+

1

V–

2

H–

4

H+

6

H DY

PH610

4

3

T620

7

5

IC652

5

CTL

2

Vcc

TH601

RY602

D610

AC RECT

L610 AFC

IC630 REG

PH630

OUT

ISENS

5

3

1

COMP

2

FB

4

RT/CT

8

VREF

4

32

DGC SW PWR SW

AC SEN

3

8

3

IC610 PFI

15103

1

2

9

REG SW

Q630

VCC SW

Q610

IC680

1

2 1

DRAIN

L SEN

CATHODE

4

3

2

1

PH620

4

32

IC620 REG OUT

FB

VG (H)

VSENSE

VC2

VG (L)

OCP

T630 :SRT

5

6

8

1

VS VB

16 15 14 10 12

9

MAIN CONVERTER

OUT Q641

MAIN CONVERTER

OUT Q640

PROTECT

Q652

A

H.DF

V.DF

HFBP

D

F

DCC2 VSAWN

V.FBP HV DET ABL DET

G2

HD OUT

HSHAPE

HSAW_SW

S0 S1 S2 S3 S4 S5 S6

H.LINBAL

S CAP CANGE Q511-517

Q511-516

H DRIVE BUFF

Q501-503

T504 :HST

T503 :LCT

H DRIVE

Q504

H_SAW SW

Q521

SIZE DETECT BUFF

Q519

L502 :HLC

H LIN BAL SW

Q510

15V

B-SS9342<AEP>-BD3-EPS05

21T3 (E) 4-3

4-2. FRAME SCHEMATIC DIAGRAM

CN309

HD15D-SUB

INPUT2 (HD15)

CN307

HD15D-SUB

INPUT1 (HD15)

10

15

5

14

9

4

13

8

3

12

7

2

11

6

1

10

15

5

14

9

4

13

8

3

12

7

2

11

6

CN312

1

9P

WHT

5V

3.3V7V+12V

987654321

GND

+80VNC+B

+B

(VIDEO AMP, RGB OUT )

A1

CN311

17P

WHT

GND

IIC SDA

IIC SCA

GND

ECO SW

GND

DDC SDA1

DDC SCL1

DDC GND1

17161514131211

987654321

10

DDC SDA2

DDC SCL2

DDC GND2

GND

INPUT SW

VS OUT

HS OUT

H BLK

2P

CN318

G2

1

G2(NC)

2

HG H

RGB

PICTURE

TUBE

G2

G1

DA

(

DPU

987654321

5V

7V

+B

NC

3.3V

GND

+12V

S2

DGC SW

(

+80V

D

S3

GND

HTR SW

PWR SW

µ-COM

DDC GND2

GND

HTR SW

GND

GNDS3DDC GND2S4DDC SCL2S5DDC SDA2S6DDC GND1G2DDC SCL1

)

CN604

9P

LED1

LB DET

LED2

V.FBP

BLK

DEFLECTION,HDF,VDF, HV, POWER SUPPLY

S0

S1

+5V

INPUT SW

INPUT SWS0+5VS1DGC SWS2PWR SW

N

CN1101

40P

40

XSC

39

YSC

38

D.TILT

37

XDC

36

HFBP

35

YDC

34

HD OUT

33

REFDC

32

HSHAPE

31

+12V

30

NC

29

+12V

28

A.GND

27

3.3V

26

D.GND

25

D.GND

24

HSAW_SW

23

GXSC

22

LCC NS

21

GYSC

20

IIC SDA

19

)

IIC SCL

18

A.GND

17

A.GND

16

H.LINBAL

15

H BLK

14

NC

13

HS OUT

12

DCC2

11

VS OUT

10

VSAWN

9

NC

8

A.GND

7

PLL LOCK

6

A.GND

5

POC

4

A.GND

3

A.GND

2

V.DF

1

H.DF

TO ECS

AC IN

DGC

XSC YSC

D.TILT

XDC

HFBP

YDC

HD OUT

REFDC

HSHAPE

+12V

A.GND

3.3V D.GND D.GND

HSAW_SW

GXSC

LCC NS

GYSC

IIC SDA

IIC SCL A.GND A.GND

H.LINBAL

H BLK

HS OUT

DCC2 VS OUT VSAWN

A.GND

PLL LOCK

A.GND

POC A.GND A.GND

V.DF

H.DF

CN502

40P

40 39 38 37 36 35 34 33 32 31 30

NC

29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14

NC

13 12 11 10

9

NC

8 7 6 5 4 3 2 1

CN1104

44P

4443424140393837363534333231302928272625242322212019181716151413121110

NC

CN1101

4P

WHT

1

D GND

2

+5V

3

RXD

4

TXD

CN602

3P

WHT

:VH

AC L

1

NC

2

AC N

3

CN601

4P

WHT

:VH

1

DGC

2

NC

3

NC

4

DGC

GND

NC

GNDNCNC

4443424140393837363534333231302928272625242322212019181716151413121110

CN1001

44P

S7

NC

POC

GND

IK SIGMA

WAKE UP

PLL LOCK

KEY SCAN

POC

PLL LOCK

GNDS7WAKE UP

KEY SCAN

IK SIGMA

S4

CN1102

17P

BLK

S5

DDC SCL2

17161514131211

GND

IIC SDA

IIC SCA

S6

G2

DDC SDA2

DDC GND1

987654321

DDC SCL1

987654321

GND

ABL DET

GND

ECO SW

DDC SDA1

987654321

10

DDC SCL1

DDC SDA1

DDC SDA2

DDC GND1

TXD

RXD

IIC SCL

HV DET

ECO SW

HV DET

ECO SW

RXD

IIC SCL

TXD

:S-MICRO (L)

DDC SCL2

DDC GND2

IIC SDA

CN1003

6P

T_AMB

LUMI (NC)

5V (NC)

GND

VX VY

VS OUT

INPUT SW

1 2 3 4 5 6

HS OUT

H BLK

1

1P

CN504

1.2kV

CN1103

8P

WHT

1413121110 VX

VY

GND

T_AMB

H3

(

USER CONTROL

INPUT SW 8765432

987654321

GND

INPUT SW

HV

CN701

10P

WHT

:S-MICRO

ROTATION+ ROTATION–

XSC– XSC+ YSC– YSC+ XDC– XDC+ YDC– YDC+

CN501

6P

WHT

:VH

V+ V– NC H– NC H+

CN1101

40P

1 2 3 4 5 6 7 8

+5V

GND

LED 2

LED 1

KEY SCAN

WAKE UP

+12V 1

+5V

GND

+12V

LED 2

LED 1

CN1400

WAKE UP

14P

KEY SCAN

CN1401

5P

1

GND

2

VX

3

VY

4

T_AMB

5

LUMI (NC)

6

5V (NC)

)

10

9 8 7 6 5 4 3 2 1

1 2 3 4 5 6

-15V +15V GND GXSC GYSC LCC_NS IIC SDA IIC SCL

TO

MAGNETIC

SENSOR

ROTATION

V DY

H DY

GXSC GYSC

LCC_NS

IIC SDA IIC SCL

CN1603

8P

WHT

1

-15V 2

+15V

3

GND

4 5 6 7 8

(

CY, LCC

L2

B-SS9342<AEP>-KESSENZU-EPS05

CN1601

4P

WHT

:S-MICRO

CY4+ CY4– CY3+ CY3–

CN1600

2P

WHT

:S-MICRO LCC-NS (+) LCC-NS (–)

CN1602 LCC-LT (+) LCC-LT (–)

LCC-LB (+)

LCC-LB (–)

LCC-RT (+) LCC-RT (–) LCC-RB (+) LCC-RB (–)

)

3 4 1 2

1 2

1 2 3 4 5 6 7 8

LCC-NS

LCC-LT

LCC-LB

LCC-RT

LCC-RB

21T3 (E) 4-4

Siemens CR1, 21T3 Service Manual

21T3

SAFETY CHECK-OUT

POWER SAVING FUNCTION

DIAGNOSIS

TIMING SPECIFICATION

TABLE OF CONTENTS

1-1. CABINET REMOVAL

DISASSEMBLY

1-2. A1 BOARD (C BLOCK) REMOVAL

1-3. A1 BOARD REMOVAL

1-4. BEZEL ASSEMBLY, H3 BOARD REMOVAL

1-5. D BOARD REMOVAL

1-6. SERVICE POSITION

1-7. PICTURE TUBE REMOVAL

1-8. HARNESS LOCATION

SAFETY RELATED ADJUSTMENT

ADJUSTMENTS

4-1. BLOCK DIAGRAMS

DIAGRAMS

4-2. FRAME SCHEMATIC DIAGRAM