DOWNLOAD Panasonic DMC-FT20EE Service Manual ↓ Size: 5.54 MB | Pages: 90 in PDF or view online for FREE

ORDER NO.DSC1202003CE

B26

Colours
(A)....................Blue Type (Except DMC-FT20EF, DMC-

TS20GT)

(D)....................Orange Type (Except DMC-FT20EE, 

DMC-TS20PU/PB/GK)

(K)....................Black Type (Except DMC-FT20EF, 

DMC-TS20PC/PB/GH/GK)

(R)....................Red Type (Except DMC-FT20EE)

2

PAGE

PAGE

1 Safety Precautions -----------------------------------------------3

1.1. General Guidelines ----------------------------------------3
1.2. Leakage Current Cold Check ---------------------------3
1.3. Leakage Current Hot Check (See Figure 1)---------3
1.4. How to Discharge the Capacitor on Flash 

P.C.B.----------------------------------------------------------4

2 Warning --------------------------------------------------------------5

2.1. Prevention of Electrostatic Discharge (ESD) 

to Electrostatic Sensitive (ES) Devices ---------------5

2.2. How to Recycle the Lithium Ion Battery (U.S. 

Only)-----------------------------------------------------------5

2.3. Caution for AC Cord (For EB/GC/GH) ----------------6
2.4. How to Replace the Lithium Battery-------------------7

3 Service Navigation------------------------------------------------9

3.1. Introduction --------------------------------------------------9
3.2. Air-leak test (inspection)----------------------------------9
3.3. Replacing the waterproof packing (waterproof 

seal) -----------------------------------------------------------9

3.4. Camera Lens Unit------------------------------------------9
3.5. General Description About Lead Free Solder 

(PbF) -------------------------------------------------------- 10

3.6. How to Define the Model Suffix (NTSC or PAL 

model)------------------------------------------------------- 11

4 Specifications ---------------------------------------------------- 15
5 Location of Controls and Components------------------ 20
6 Service Mode ----------------------------------------------------- 22

6.1. Error Code Memory Function ------------------------- 22
6.2. ICS (Indication of additional Camera Settings 

when picture was taken) function -------------------- 25

7 Troubleshooting Guide---------------------------------------- 27

7.1. Service and Check Procedures ---------------------- 27
7.2. Air-leak Test ----------------------------------------------- 30

8 Service Fixture & Tools --------------------------------------- 32

8.1. Service Fixture and Tools ------------------------------ 32
8.2. When Replacing the Main P.C.B. -------------------- 33
8.3. Service Position ------------------------------------------ 33

9 Disassembly and Assembly Instructions--------------- 34

9.1. Disassembly Flow Chart-------------------------------- 34
9.2. P.C.B. Location ------------------------------------------- 34
9.3. Disassembly Procedures------------------------------- 35

10 Measurements and Adjustments -------------------------- 44

10.1. Introduction ------------------------------------------------ 44
10.2. Before Disassembling the unit ------------------------ 44
10.3. Details of Electrical Adjustment----------------------- 46
10.4. After Adjustment------------------------------------------ 50

11 Maintenance ------------------------------------------------------ 51

11.1. Cleaning Lens and LCD Panel ----------------------- 51

12 Block Diagram --------------------------------------------------- 53

12.1. Overall Block Diagram ---------------------------------- 53
12.2. System Control Block Diagram ----------------------- 54
12.3. Video/Audio Signal Process Block Diagram------- 55
12.4. Sensor Block Diagram ---------------------------------- 56

12.5. Lens Drive Block Diagram----------------------------- 57
12.6. Power Block Diagram----------------------------------- 58

13 Wiring Connection Diagram -------------------------------- 59

13.1. Interconnection Diagram------------------------------- 59

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1. IMPORTANT SAFETY NOTICE

There are special components used in this equipment 
which are important for safety. These parts are marked by 

 in the Schematic Diagrams, Circuit Board Layout, 

Exploded Views and 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 manufacturer.

2. An Isolation Transformer should always be used during 

the servicing of AC Adaptor whose chassis is not isolated 
from the AC power line. Use a transformer of adequate 
power rating as this protects the technician from 
accidents resulting in personal injury from electrical 
shocks. It will also protect AC Adaptor from being 
damaged by accidental shorting that may occur during 
servicing.

3. When servicing, observe the original lead dress. It a short 

circuit is found, replace all parts which have been 
overheated or damaged by the short circuit.

4. After servicing, see to it that all the protective devices 

such as insulation barriers, insulation papers shields are 
properly installed.

5. 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 5.2MΩ. When the 

exposed metal does not have a return path to the chassis, 

the reading must be infinity.

1. Plug the AC cord directly into the AC outlet. Do not use 

an isolation transformer for this check.

2. Connect a 1.5k

Ω, 10 W resistor, in parallel with a 0.15μF 

capacitor, between each exposed metallic part on the set 
and a good earth ground, as shown in Figure 1.

3. Use an AC voltmeter, with 1 k

Ω/V or more sensitivity, to 

measure the potential across the resistor. 

4. Check each exposed metallic part, and measure the 

voltage at each point.

5. Reverse the AC plug in the AC outlet 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 1/2 mA. In case a measurement 
is outside 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.

Figure 1

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• This unit equipped with two pieces of capacitors as flash charging capacitors.

"Either one of the capacitor discharging operation" makes discharging for others as well.

1. Be sure to discharge the capacitor on Flash P.C.B.
2. Be careful of the high voltage circuit on Flash P.C.B. when servicing. 

1. Refer to the disassemble procedure and remove the necessary parts/unit.
2. Put the insulation tube onto the lead part of Resistor (ERG5SJ102:1k

Ω /5W). 

(An equivalent type of resistor may be used.) 

3. Put the resistor between both terminals of capacitor on Flash P.C.B. for approx. 5 seconds.
4. After discharging confirm that the capacitor voltage is lower than 10V using a voltmeter.

Fig. F1