TH-42LF5E, TH-47LF5E - Panasonic TV Service Manual (repair manual)

(Information in brackets [ ] refers to model 47”) 

 

220-240V AC, 50/60 Hz 

 

 

250W   [290W] 

0.5W  

0.3W   

 

 

 

 

L5EDDYY00417          [L5EDDYY00418] 

 

 

 

 

 

16:9 aspect ratio 

 

 

:   

  

Wight: 

Height:  

Diagonal: 

 

 

930mm         523mm          1,067mm 

[1,039mm]     [584mm]         [1,192mm]   

                    (No. of pixels) 

2,073,600 (1,920 (W) x 1,080 (H)) 

 

 

 

 

Temperature:    0°C  40°C 

 

 

     

Humidity: 

   20%  

 

 

 

     

Scanning Format:   

  525 (480) / 60i, 60p  

 

 

 

 

  625 (575) / 50i, 50p 

 

 

 

 

 

750 (720) / 60p, 50p  

 

 

 

 

 

1,125 (1,080) / 60i, 60p, 50i, 50p, 24p, 25p, 30p, 24sF 

 

 

               PC signals:   

  VGA, SVGA, XGA, SXGA, UXGA ....(compressed) 

 

 

 

 

 

Horizontal scanning frequency 30 – 110 kHz 

 

 

 

 

  Vertical scanning frequency 48 – 120 Hz 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

and 

ORDER No. PCZ1208131CE 

 

     
             

Connection Terminals: 

 

AUDIO OUT L-R 

RCA Pin jack x 2 (L / R) 

       [Input 1 kHz / 0dB, 10k

 Load] 

 

        

Output level: Variable (-

 - 0dB)          

 HDMI 

Type 

A 

Connector 

 
 

DVI-D IN 

DVI-D 24 Pin  

       Compliance with DVI Revision 1.0 

 

 

Content Protection 

       Compatible with HDCP 1.1 

 

       AUDIO 

Stereo mini jack (M3) x 1          0.5 Vrms (Shared with PC IN) 

 
 

PC IN 

High-Density Mini D-sub 15PIN    Y or G: with sync 1.0 Vp-p (75

) 

 

 

 

                  : without sync 0.7 Vp-p (75

) 

 

 

 

       P

B

/C

B

/B : 0.7 Vp-p (75

) 

 

 

 

       P

R

/C

R

/R : 0.7 Vp-p (75

) 

 

 

 

       HD/VD: 1.0-5.0 Vp-p (hight impedance) 

 

       AUDIO 

Stereo mini jack (M3) x 1          0.5 Vrms  (Shared with DVI-D IN) 

 

 

 

SERIAL IN 

External Control Terminal 

 

 

D-sub 9 Pin 

        RS-232C compatible 

 

 

  Remote Control 

       

      2 x R6 (UM3)  Batteries 

 

Dimensions: 

 

 

Width:         Height:        Depth:  

 

 

 

968mm        561mm       116mm 

 

 

[1,079mm]    [624mm]     [117mm] 

 

 

 

 

Weight:  

20 kg  

 

   

[24.5 

kg] 

 

 

* Design and specifications are subject to change without notice. 

 

* Mass and dimensions shown are approximate. 

 

* This equipment complies with the EMC standards listed below. 

 

   EN55022, EN55024, EN61000-3-2, EN61000-3-3 

               

 

 

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 potencial 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 deal within this service information by anyone else could result in serious injury or death. 

 

 

 

 

 

 

1.  When servicing, observe the original lead dress. If a short circuit is found, replace all parts which have been overheated 

or damaged by the short circuit. 

2.  After servicing, see to it that all the protective devices such as insulation barriers, insulation papers shields are properly 

installed. 

3.  After servicing, make the following touch current checks to prevent the customer from being exposed to shock hazards. 
4.  Always ensure connector cover TKK5ZL50041 is correctly replaced before returning to customer (see Fig.1). 
 
 
 
 
 
 
 
  
 
 
 
 
 
 

1.  Plug the AC cord directly into the AC outlet. Do not use an isolation transformer for this check. 
2.  Connect a measuring network for touch currents between each exposed metallic part on the set and a good earth 

ground such as a water pipe, as shown in Fig. 2. 

3.  Use Leakage Current Tester (Simpson 228 or equivalent) to measure the potential across the measuring network. 
4.  Check each exposed metallic part, and measure the voltage at each point. 
5.  Reserve the AC plug in the AC outlet and repeat each of the above measure. 
6.  The potential at any point (TOUCH CURRENT) expressed as voltage U1 and U2, does not exceed the following values: 

For a. c.: U1 = 35 V (peak) and U2 = 0.35 V (peak); 
For d. c.: U1 = 1.0 V, 

Note:

 

The limit value of U2 = 0.35 V (peak) for a. c. and U1 = 1.0 V for d. c. correspond to the values 0.7 mA (peak) a. c. and 
2.0 mA d. c. 
The limit value U1 = 35 V (peak) for a. c. correspond to the value 70 mA (peak) a. c. for frequencies greater than 100 
kHz. 

7.  In case a measurement is out of the limits specified, there is a possibility of a shock hazard, and the equipment should 

be repaired and rechecked before it is returned to the customer. 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

TO 
APPLIANCES 
EXPOSED 
METAL PARTS 

Resistance values in ohms (

) 

V 

R

0

=500

 

R

S

=1500

 

C

S

=0.22

F 

10k

 

0.022

F 

COLD 
WATER PIPE 
(EARTH GROUND)

 

V: Voltmetr or oscilloscope 
  (r.m.s. or peak reading) 

Measuring network for TOUCH CURRENTS 

Input resistance: 

1M 

Input capacitance:

200pF 

Frequency range: 15Hz to 1MHz and d.c.respectively 

NOTE – Appropriate measures should be taken to obtain the correct value in case of non-sinusoidal waveforms 

U

2

 (V) 

U

1

 (V)