DOWNLOAD Panasonic WJ-SX150 / WJ-SX150A Service Manual ↓ Size: 3.23 MB | Pages: 55 in PDF or view online for FREE

120 V AC, 60 Hz (for NTSC model) ;  220 V - 240 V AC, 50 Hz (for PAL model)

60 W

1.0 V[p-p]/75 

Ω

composite video signal

0.5 V[p-p]/75 

Ω

data signal and 2.5 V[p-p]/75 

Ω

vertical timing pulse multiplexed

1.0 V[p-p]/75 

Ω

composite video signal

1.0 V[p-p]/75 

Ω

composite video signal

1.0 V[p-p]/75 

Ω

composite video signal

RS-485 6-conductor modular jack

RS-485 6-conductor modular jack

25-pin D-sub connector

9-pin D-sub connector

–10 °C to +50 °C (14 °F to 122 °F)

Less than 90 %

420 mm (W) X 88 mm (H) X 350 mm (D) [16-9/16” (W) X 3-7/16” (H) X 13-3/4” (D)]

6 k

g

(13.2 lbs.)

Dimensions and weight are approximate.
Specifications are subject to change without notice.

Crossing modular cable . . . . . . . . . . . . . . . . . . . 1 pc. (for WJ-SX150A)
Power Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 pc. (for NTSC model)
Power Cable . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 pcs. (for PAL model)
CD-ROM. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 pc.
Rack Mounting Bracket . . . . . . . . . . . . . . . . . . . 2 pcs.
Screws (M4 x 10) . . . . . . . . . . . . . . . . . . . . . . . . 4 pcs.

WJ-SX150/WJ-SX150A

Matrix Switcher WJ-SX 

A

ORDER NO. AVS0303490C0
S16

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 .

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.

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.

Y 

The lithium battery in this equipment must only be 
replaced by qualified personnel. When necessary, 
contact your local Panasonic supplier.

Danger of explosion if battery is incorrectly replaced.
Replace only with the same or equivalent type recommended 
by  the equipment manufacturer. Discard used batteries 
according to manufacturer's instructions.

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 1 M

Ω

  and 

           

5.2 M

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 1.5 k

Ω

  / 10 W resistor, paralleled by 0.15 

µ

F

     

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 1 k

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 repeat

        

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

1.5 k

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

Difference Between WJ-SX150 and WJ-SX150A  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-1

DIP Switch Setting  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-2

How to Backup/Restore the Setup Data  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-3

Adjustment Procedure  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-5

Location of Test Points and Adjusting Controls  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-6

Wiring Diagram  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-1

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

Block Diagram (2/3)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-3

Block Diagram (3/3)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3-4

Partition Diagram for Schematic Diagram of Main Board  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-1

Main Board (1/6)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-2

Main Board (2/6)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-3

Main Board (3/6)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-4

Main Board (4/6)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-5

Main Board (5/6)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-6

Main Board (6/6)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-7

Power Board  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-8

Rear Board  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-9

D-Sub Board  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-10

Front Board  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-11

LED Board  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4-12

Main Board (Component Side View)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-1

Main Board (Pattern Side View)  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-2

Power Board  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-3

Rear Board  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-4

Front Board  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-5

D-Sub Board  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-6

LED Board  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5-7

Exploded View  . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6-1

Replacement Parts List   . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7-1