Sanyo VCB-3574IRP Service Manual

SERVICE MANUAL

FILE NO.

B/W CCD Camera

SPECIFICATIONS

Scanning system : CCIR standard (625 TV lines, 25 frames/sec.) Interlace : PLL 2:1 interlace Image device : 1/2 inch solid state image device CCD Picture elements : 795 (Horizontal) x 596 (Vertical) Effective picture elements : 752 (Horizontal) x 582 (Vertical) Synchronizing system : Line lock/External sync (automatic switching) Resolution : 560 TV lines horizontally, 350 TV lines vertically Video output level : 1.0 Vp-p/75 W , composite Video S/N ratio : More than 50 dB Minimum required illumination : Approx. 0.02 lux with a F 1.2 lens, (incandescent lighting) Approx. 0.03 lux with a F 1.4 lens Backlight compensation : Manual ON/OFF switching, zone light measuring system

(Active when using an auto-iris lens)

Electronic iris function : Manual ON/OFF switching Electronic iris range : 0.02 lux to 10,000 lux (F1.2, lens)

0.03 lux to 15,000 lux (F1.4, lens)

Flange-back : 12.5 mm ± 0.8 mm Gamma correction : g = 0.45 Lens mount : CS mount (or C mount with the supplied adaptor) Environmental conditions : Temperature: -10 °C ~ + 50 °C Humidity: less than 90 % (no condensation) Power supply : 24 V AC, (±4 V) 50 Hz Power consumption : 3.1 W (with auto iris lens)

2.4 W (without auto iris lens)

Weight : Approx. 330 g (without lens)

VCB-3574IRP

(Product Code : 117 061 24) (South East Asia) (Europe)

CONTENTS

DISASSEMBLY, ADJUSTMENT, PARTS LIST.....FILE1

CIRCUIT DIAGRAMS

 OVERALL WIRING, CA-1 CIRCUIT ...........FILE2

 CA-2 CIRCUIT ............................................FILE3

 CA-3 CIRCUIT ............................................FILE4

 CA-4 CIRCUIT ............................................FILE5

 CA-5 CIRCUIT ............................................FILE6



PRODUCT SAFETY NOTICE

The components designated by a symbol ( ! ) in this schematic diagram designates components whose value are of special significance to product safety. Should any component designated by a symbol need to be replaced, use only the part designated in the Parts List. Do not deviate from the resistance, wattage, and voltage ratings shown.

NOTE : 1. Parts order must contain model number, part number, and description.

2. Substitute parts may be supplied as the service parts.

3. N. S. P. : Not available as service parts.

Design and specification are subject to change without notice.

L72H4/XE

REFERENCE No. SM5310037

SERVICE MANUAL

FILE NO.

B/W CCD Camera

SPECIFICATIONS

Scanning system : CCIR standard (625 TV lines, 25 frames/sec.) Interlace : PLL 2:1 interlace Image device : 1/2 inch solid state image device CCD Picture elements : 795 (Horizontal) x 596 (Vertical) Effective picture elements : 752 (Horizontal) x 582 (Vertical) Synchronizing system : Line lock/External sync (automatic switching) Resolution : 560 TV lines horizontally, 350 TV lines vertically Video output level : 1.0 Vp-p/75 Ω, composite Video S/N ratio : More than 50 dB Minimum required illumination : Approx. 0.02 lux with a F 1.2 lens, (incandescent lighting) Approx. 0.03 lux with a F 1.4 lens Backlight compensation : Manual ON/OFF switching, zone light measuring system

(Active when using an auto-iris lens)

Electronic iris function : Manual ON/OFF switching Electronic iris range : 0.02 lux to 10,000 lux (F1.2, lens)

0.03 lux to 15,000 lux (F1.4, lens)

Flange-back : 12.5 mm ± 0.8 mm Gamma correction : γ = 0.45 Lens mount : CS mount (or C mount with the supplied adaptor) Environmental conditions : Temperature: -10 °C ~ + 50 °C Humidity: less than 90 % (no condensation) Power supply : 24 V AC, (±4 V) 50 Hz Power consumption : 3.1 W (with auto iris lens)

2.4 W (without auto iris lens)

Weight : Approx. 330 g (without lens)

VCB-3574IRP

(Product Code : 117 061 24) (South East Asia) (Europe)

CONTENTS

1. DISASSEMBLY ....................................2

2. BOARD LOCATION .............................3

3. ADJUSTMENT .....................................4

4. PARTS LIST .........................................6

SCHEMATIC DIAGRAM

PRODUCT SAFETY NOTICE

NOTE : 1. Parts order must contain model number, part number, and description.

2. Substitute parts may be supplied as the service parts.

3. N. S. P. : Not available as service parts.

Design and specification are subject to change without notice.

L72H4/XE

REFERENCE No. SM5310037

1. DISASSEMBLY

2. Remove the rear panel.

3. Remove the two screws, and then pull out the top cabinet.

1. Loosen the two screws, and then remove the left and right side panels.

4. Remove the two screws, and then remove the bracket and pull out the bottom cabinet.

7. Remove the six screws, then remove the CA-2/CA-3/CA-4 board assemblies and the FPC, and disconnect the connector.

CA-3 board

CA-2 board

CA-4 board

5. Remove the front panel.

9. Remove the two screws, and then remove the CA-1 board assembly.

CA-5 board

6. Remove the six screws, and then disconnect the CA-5 board assembly connector from the CA-2 board assembly.

CA-1 board

8. Remove the five screws, and then remove the lens mount bracket.

-2-

2. BOARD LOCATION

TP101

TP102

CA-1 board (Side A)

VR201

VR203

SUB RGL Abbr.

TP202

SUB RGL Abbr.

TP201

VR204

TP301

CT301

CA-3 board (Side A)

VR401

SW401

SW402

VR502

CA-2 board (Side B)

TP501

TP502

CN206

SW403

CA-4 board (Side A)

CA-2 board

CA-3 board

CA-5 board

CA-4 board

VR501

CA-1 board

CA-5 board (Side A)

-3-

3. ADJUSTMENT

3-1. ADJUSTMENT PREPARATION

1. Set the ITE gray scale chart II(γ =0.45) to the viewer.

2. Set the angle of adjustment control (VR) before starting adjustment at the center or temporary adjustment (nearly adjusted) unless specified.

3. Set the trigger signal of oscilloscope to VIDEO OUT, and apply H sync unless specified.

4. Set the operating condition of the camera (switch settings inside the side panel) as follows in adjusting unless specified. E.l./BLC switch (SW402): "OFF" position Auto iris switch (SW401): "DC" position

5. The VIDEO OUT connector connect to a video monitor terminated in 75 Ω input impedance.

3,100 K viewer

CCD camera

(H + h)

L = × f 12.5 mm

H× h

L: Distance from CS mount to pattern (mm) H: Pattern height (mm) f: Lens focal length (standard 12 mm) h: Height (4.8 mm) of CCD imaging surface

CS mount surface

3-4. SUB Voltage Adjustment

Adjustment location: VR201 (CA-2) Measuring location: TP102 (CA-1) Measuring equipment: Digital voltmeter Subject: No designation Adjusting method:

1. Read SUB voltage from the abbreviation described on the side A of CA-1 board.

2. Adjust with VR201 to the adjustment value.

Note:

Note that the adjustment value depends on CCD imager. When installing a new CCD, read the abbreviation described on the rear side of CCD and write it to the board.

SUB voltage value ± 0.1 V (below figure)

VSUB abbreviation

SUB voltage (V)

10.0

10.5

11.0R11.5

6.0 S

12.0

6.5G7.0 T

12.5

13.0

7.5J8.0 V

14.0

13.5

8.5

9.0

9.5

3-5. AGC LEVEL ADJUSTMENT

Adjustment location: VR203 (CA-2) Measuring location: TP202 (CA-2), VIDEO OUT Measuring equipment: Oscilloscope Subject: Gray scale chart Adjusting method:

1. Adjust the lens aperture so that the waveform level of TP202 is 400 ± 50 mVp-p.

2. Adjust with VR203 so that the waveform level is 800 ± 10 mVp-p during video output.

Note : The video monitor should be an under-scan TV.

3-2. Power Supply Voltage Adjustment

Adjustment location: VR501 (CA-5) Measuring location: Measuring equipment: Digital voltmeter Subject: No designation Adjusting method:

1. Adjust with VR501 to 5.00 ± 0.05 V DC.

TP502 (CA-5)

3-3. Oscillation Control Voltage Adjustment

Adjustment location: CT301 (CA-3) Measuring location: TP301 (CA-3) Measuring equipment: Digital voltmeter, Standard signal

generator (for external sync)

Subject: No designation Adjusting method:

1. Input the standard signal for external sync to CN206.

2. Adjust with CT301 to 3.00 ± 0.05 V.

400 ± 50 mVp-p

TP202

800 ± 10 mVp-p

VIDEO OUTPUT

-4-

3-6. Auto Iris Level Adjustment

Adjustment location: SW401, SW402, VR401 (CA-4) Measuring location: VIDEO OUT Measuring equipment: Oscilloscope Subject: Gray scale chart Preparation:

1. Auto iris switch (SW401) : “DC” position BLC switch (SW402) : “OFF” position

2. Attach the automatic iris lens, and then adjust the distance between the camera and the subject so that the gray scale waveform width is 30 µsec. (Refer to the figure below.)

Adjusting method:

1. Turn VR401 clockwise as far as it will go. (The white level will become distorted.)

2. Turn VR401 counterclockwise untill the waveform level is 550 ± 10 mVp-p during video output.

3-8. Line Phase Adjustment

Adjustment location: VR502 (CA-5) Measuring location: VIDEO OUT, 24 V AC terminals Measuring equipment: Oscilloscope Subject: Gray scale chart Preparation:

1. Set the oscilloscope synchronization to vertical synchronization.

2. Connect the oscilloscope probe to the right side of the 24 V AC terminals, and then connect the probe GND to the left side of the 24 V AC terminals.

Adjusting method:

1. Turn VR502 to adjust so that the phase difference between the leading edge of the vertical synchronization signal of the video output and the zero-cross point of the 24 V AC line waveform is 0 ± 1 msec.

VIDEO OUTPUT

3-7. Backlight Compensation Adjustment

Adjustment location: VR204 (CA-2), SW402 Measuring location: VIDEO OUT Measuring equipment: Oscilloscope Subject: Gray scale chart Preparation:

1. BLC switch (SW402) : “ON” position

2. Attach the automatic iris lens, and then adjust the distance between the camera and the subject so that the gray scale waveform width is 30 µsec. (Refer to the figure below.)

Adjustment method:

1. Adjust with VR204 so that the waveform level is 700 ± 30 mVp-p during video output.

2. Return the BLC switch (SW402) to the “OFF” position.

3-9. Flange-back Adjustment

Adjustment location: Flange back adj. screw Measuring location: Monitor display Measuring equipment: Video monitor Subject: Siemens star chart Preparation:

1. Attach the zoom lens.

Adjusting method:

1. Using a + screwdriver, loosen the FLANGE BACK LOCK screw. Set the zoom lens to the maximum telephoto position, and set the focus using on the lens.

2. Set the zoom lens to the maximum wide angle position, and set the focus using the FLANGE BACK ADJ. screw.

3. Repeat steps 2. and 3. until the image stays in focus when changing from a telephoto shot to a wide angle shot. When the setting is complete, tighten the FLANGE BACK LOCK screw.

VIDEO OUTPUT

-5-

4. PARTS LIST

CABINET & CHASSIS PARTS

1 613 159 9369 DEC INDICATOR 2 613 156 4015 COVER BOTTOM 3 412 051 6007 SPECIAL SCREW-3X4 4 613 159 2797 MOUNTING 5 411 126 4702 SCR PAN+SW+W 3X6 6 411 164 7703 SCR TRS+IN TW 2X5 7 613 156 3971 CABINET FRONT 8 613 186 2548 COMPL PWB,CA-5 9 412 054 3805 SPECIAL SCREW-2.0X4.0 10 613 185 3782 COVER SIDE-L 11 613 185 3775 COVER SIDE-R 12 411 126 1404 SCR S-TPG BIN 2X4 13 411 023 4201 SCR S-TPG PAN 3X10 14 613 186 2517 COMPL PWB,CA-2

LOCATION PARTS NO. DESCRIPTIONLOCATION PARTS NO. DESCRIPTION

15 613 186 2524 COMPL PWB,CA-3 16 613 185 4413 COMPL PWB,CA-4 17 411 021 0809 SCR S-TPG BIN 2X6 18 613 185 4383 COMPL PWB,CA-1 19 613 158 6369 SPACER INSULATOR 20 613 156 4374 HOLDER CCD 21 409 441 3807 IC ICX249AL-7 (IC101) 22 613 156 4091 MOUNTING,LENS 23 613 161 8350 CAM 24 613 156 4114 SLIDE 25 613 156 4695 HOUSING CCD 26 613 156 4442 SPRING PLATE 27 411 125 8503 SCR PAN PCS 2X4 28 613 156 4411 SPACER 29 645 004 9347 TERMINAL,BOARD (CN502) 30 411 045 2407 SCR PAN+SW 3X10

N.S.P.

L72H4/US

N.S.P.

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