DOWNLOAD Panasonic WV-CL920A / WV-CL924A Service Manual ↓ Size: 1.81 MB | Pages: 33 in PDF or view online for FREE

ORDER NO. AVS0304481C1
S02

R

WV-CL920A/WV-CL924A

WV-

768 (H) x 494 (V) pixels, Interline Transfer CCD

6.45 (H) x 4.84 (V) mm (Equivalent to scanning area of 1/2” pick-up tube)

525 lines/60 fields/30 frames

15.734 kHz

59.94 Hz

Internal, Line-locked, External (VS/VBS) or 
Multiplexed Vertical Drive (VD2) selectable

1.0 V[p-p] NTSC composite 75 

Ω

/BNC connector

480 lines (C/L), 570 lines (B/W)

50 dB (AGC OFF, weight ON)

0.14 lx (0.014 footcandle) at F1.4 (C/L), 0.01 lx (0.001 footcandle) at F1.4 (B/W)

AGC ON or OFF (SET UP MENU) selectable

ATW1, ATW2 or AWC (SET UP MENU) selectable

Variable (SET UP MENU)

Equivalent to continuous variable shutter speeds between 1/60 s and 1/10 000 s

ON (DNR-H), ON (DNR-M), ON (DNR-L) or OFF (SET UP MENU) selectable

Preset ON or OFF (SET UP MENU) selectable

1/60 (OFF), 1/100, 1/250, 1/500, 1/1 000,1/2 000,1/4 000, 1/10 000 s selectable

CS-mount

DC or Video selectable

Ambient Operating Temperature: –10°C - +50°C (14°F - 122°F)
Ambient Operating Humidity:

Less than 90 %

WV-CL920A:

120 V AC 60 Hz  4.8 W

WV-CL924A:

24 V AC 60 Hz  4.9 W
12 V DC  460 mA

Collector-output
OFF (Open or 4 V DC - 5 V DC)/ON (

≤

1 V 50 mA)

Pulled-up to 5 V DC
OFF (Open)/ON (0 V 0.2 mA)

2 0 0 3

M a t s u s h i t a   E l e c t r i c   I n d u s t r i a l   C o . ,   L t d .

A l l   r i g h t s   r e s e r v e d .   U n a u t h o r i z e d   c o p y i n g   a n d
d i s t r i b u t i o n   i s   a   v i o l a t i o n   o f   l a w .

Body Cap  .................................................................... 1 pc.
ALC Lens Connector (YWM1943A) ............................ 1 pc.
AC Power Cord (only for WV-CL920A) ....................... 1 pc.
C-mount Adapter ......................................................... 1 pc.

74 mm (W) x 55 mm (H) x 120 mm (D)
[2-15/16” (W) x 2-3/16” (H) x 4-13/16” (D)]

WV-CL920A:

0.45 kg (1.0 lbs.) (without power cord)

WV-CL924A:

0.44 kg (1.0 lbs.)

Weights and dimensions indicated are approximate.
Specifications are subject to change without notice.

RISK OF ELECTRIC SHOCK

DO NOT OPEN

CAUTION:
TO  REDUCE THE RISK OF ELECTRIC SHOCK, 
DO NOT REMOVE COVER (OR BACK). NO USER 
SERVICEABLE PARTS INSIDE.
REFER SERVICING TO QUALIFIED SERVICE
PERSONNEL.

This symbol warns the user that uninsulated voltage within 
the unit may have sufficient magnitude to cause electric 
shock. Therefore, it is dangerous to make any kind of contact 
with any inside part of this unit.

This symbol alerts the user that important literature concerning 
the operation and maintenance of this has been included.
Therefore,  it  should  be  read  carefully  in  order  to avoid 
any problems.

T

here are special components used in this equipment which are important for safety. These parts are indicated 

by the ”

 

Y

 

” mark on the schematic diagram and the replacement parts list. It is essential that these critical 

parts should be replaced with manufacturer's specified parts to prevent X-radiation, shock, fire, or other hazards.

Do not modify the original design without permission of manufacture.

PCBs (manufactured) using lead free solder (PbF) will have a stamp on the PCB.

8

Lead free solder has a higher melting point than standard solder. Typically the melting points is 35 

°

C – 40 

°

C

(95 

°

F – 104 

°

F) higher. Please use a soldering iron with temperature control and adjust it to 360 

°

C – 370 

°

C

(680 

°

F – 698 

°

F). In case of using high temperature soldering iron, please be careful not to heat too long.

8

Lead free solder will tend to splash when heated too high (600 

°

C / 1112 

°

F).

8

Lead free solder (Sn - 3.0Ag – 0.5Cu) or equivalents are recommended on repairing our lead free soldered PCB.

Y

   WARNING

This service information is designed for experienced repair technicians only and is not designed for use by the 
general public.
It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to 
service a product.
Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any 
attempt to service or repair the product or products dealt with in this service information by anyone else could 
result in serious injury or death.

1. When service is required, observe the original lead

dress. Components, wires or cables that indicate

evidence of overheating or other electrical or mechanical

damage should be replaced.

2. After servicing see to that all the protective devices, such

as insulation tape, shields must be properly installed.

3. After servicing, make the following leakage current

checks to prevent the customer from being exposed to

shock hazards.

1. Unplug the AC cord and connect a jumper between the

two prongs on the plug.

2. Measure the resistance value, with an ohmmeter,

between the jumpered AC plug and each exposed

metallic cabinet part on the equipment such as

screwheads, connectors, control shafts, etc.

When the exposed metallic part has a return path to the

chassis, the reading should be between 1M 

Ω

and 5.2M

Ω

. When the exposed metal does not have a return path

to the chassis, the reading must be 

∞

(infinity).

Any resistance value below  this range indicates an

abnormality which requires corrective action.

3. Repeat the test with the AC switch in the "OFF" position.

1. Plug the AC cord directly into adaptor socket and plug

adaptor into the AC outlet. Do not use an isolation

transformer for this check.

2. Connect a 1.5k 

Ω

/10W resistor, paralleled by 0.15 µF

capacitor, between each exposed metallic part on the

unit and a good earth ground such as a water pipe, as

shown in Figure 1.

3. Use an AC voltmeter, with 1000

Ω

/volt or more sensitivity,

to measure the potential across the resistor.

4. Check all exposed metallic parts of the cover (BNC

connector, Handle bracket, Metallic cabinet,

Screwheads, Metallic overlays, etc.), and measure the

voltage at each point.

5. Reverse the AC plug in the AC plug adaptor and re-peat

each of the above measurements.

6. The potential at any point should not exceed 0.75 V

RMS.

A leakage current tester (SIMPSON MODEL 229 or

equivalent) may be used to make the hot checks.

Leakage current must not exceed 0.5 milliampere.

In case a measurement is outside of the limits specified,

there is a possibility of a shock hazard, and corrective

action must be taken before returning the instrument to

the customer.

AC  VOLTMETER 

1.5k

Ω

0.15

µ

F        

Water  Pipe  

 (Earth  Ground)  

Test  all  exposed
metal  parts

DEVICE
UNDER
TEST       

AC  PLUG

ADAPTOR

AC  OUTLET 

Ground  Lead  Disconnected during safety check.

Fig. 1  Leakage  Current  Hot  Check

MAJOR OPERATING CONTROLS AND THEIR FUNCTIONS ......................................................... 1-1

ADJUSTMENT PROCEDURE ............................................................................................................ 2-1

LOCATION OF TEST POINTS AND ADJUSTING CONTROLS ........................................................2-9 

(1/2) ................................................................................................................................................. 3-1

(2/2) ................................................................................................................................................. 3-2

WIRING DIAGRAM ............................................................................................................................. 3-3

SENSOR BOARD ........................................................................................................................... 4-1

MAIN BOARD (1/3) ......................................................................................................................... 4-2

MAIN BOARD (2/3) ......................................................................................................................... 4-3

MAIN BOARD (3/3) ......................................................................................................................... 4-4

I/F BOARD / TERMINAL BOARD ................................................................................................... 4-5

SENSOR BOARD ........................................................................................................................... 5-1

MAIN BOARD (COMPONENT SIDE) ............................................................................................. 5-2

MAIN BOARD (PATTERN SIDE) .................................................................................................... 5-3

I/F BOARD / TERMINAL BOARD ................................................................................................... 5-4

WV-CL920A .................................................................................................................................... 6-1

WV-CL924A .................................................................................................................................... 6-2

REPLACEMENT PARTS LIST  .......................................................................................................... 7-1