Panasonic HM-TA20P User manual

© Panasonic Corporation 2011 Unauthorized copy-
ing and distribution is a violation of law.
ORDER NO. VM1105035CE
B27
High Definition Mobile Camera
Model No. HM-TA20P
HM-TA20PC
HM-TA20PU
HM-TA20EB
HM-TA20EC
HM-TA20EF
HM-TA20EG
HM-TA20EP
HM-TA20GC
HM-TA20GN
Vol. 1
Colour
(D)...........Orange Type
(A)...........Blue Type (only PC/EB/EG/GN)

2
TABLE OF CONTENTS 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
2Warning--------------------------------------------------------------4
2.1. Prevention of Electrostatic Discharge (ESD)
to Electrostatically Sensitive (ES) Devices ----------4
2.2. How to Recycle the Lithium Ion Battery (U.S.
Only)-----------------------------------------------------------4
2.3. How to Replace the Lithium Battery-------------------5
3 Service Navigation------------------------------------------------6
3.1. Introduction --------------------------------------------------6
3.2. General Description About Lead Free Solder
(PbF) ----------------------------------------------------------6
3.3. Important Notice 1:(Other than U.S.A. and
Canadian Market)------------------------------------------6
3.4. How to Define the Model Suffix (NTSC or PAL
model)---------------------------------------------------------7
3.5. Formatting----------------------------------------------------7
4 Specifications------------------------------------------------------8
5 Location of Controls and Components------------------10
6 Troubleshooting Guide----------------------------------------12
6.1. Confirmation Flow of Waterproof---------------------12
6.2. Airtight Inspection with Air Leak Tester-------------13
6.3. Air Leak Tester (RFKZ0528) Operating
Instruction--------------------------------------------------14
7 Service Fixture & Tools ---------------------------------------18
7.1. When Replacing the Main P.C.B. --------------------18
7.2. Necessary Tool & Jig------------------------------------18
8 Disassembly and Assembly Instructions---------------19
8.1. Disassembly Flow Chart--------------------------------19
8.2. PCB Location----------------------------------------------19
8.3. Disassembly Procedure --------------------------------20
9 Measurements and Adjustments --------------------------29
9.1. Electric Adjustment --------------------------------------29
10 Maintenace--------------------------------------------------------31
10.1. Regular Maintenance Flow ----------------------------31
10.2. Component Kits of Waterproof------------------------32
11 Block Diagram ---------------------------------------------------33
11.1. Overall Block Diagram----------------------------------33
11.2. Interconnection Diagram -------------------------------34
12 Exploded View and Replacement Parts List-----------35
12.1. Exploded Views-------------------------------------------35
12.2. Replacement Parts List---------------------------------37

3
1 Safety Precautions
1.1. General Guidelines
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 essen-
tial that these critical parts should be replaced with manu-
facturer’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 acci-
dents resulting in personal injury from electrical shocks. It
will also protect AC Adaptor from being damaged by acci-
dental shorting that may occur during servicing.
3. When servicing, observe the original lead dress. If a short
circuit is found, replace all parts which have been over-
heated 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.
1.2. Leakage Current Cold Check
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 metal-
lic cabinet part on the equipment such as screwheads,
connectors, control shafts, etc. When the exposed metal-
lic part has a return path to the chassis, the reading
should be between 1 MΩand 5.2 MΩ. When the exposed
metal does not have a return path to the chassis, the
reading must be infinity.
1.3. Leakage Current Hot Check
(See Figure 1.)
1. Plug the AC cord directly into the AC outlet. Do not use
an isolation transformer for this check.
2. Connect a 1.5 kΩ, 10 W resistor, in parallel with a 0.15 μF
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 kΩ/V or more sensitivity, to
measure the potential across the resistor.
4. Check each exposed metallic part, and measure the volt-
age 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 equiva-
lent) may be used to make the hot checks, leakage cur-
rent 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

4
2Warning
2.1. Prevention of Electrostatic Discharge (ESD) to Electrostatically
Sensitive (ES) Devices
Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are called Elec-
trostatically Sensitive (ES) Devices. Examples of typical ES devices are integrated circuits and some field-effect transistors and
semiconductor "chip" components. The following techniques should be used to help reduce the incidence of component damage
caused by electrostatic discharge (ESD).
1. Immediately before handling any semiconductor component or semiconductor-equipped assembly, drain off any ESD on your
body by touching a known earth ground. Alternatively, obtain and wear a commercially available discharging ESD wrist strap,
which should be removed for potential shock reasons prior to applying power to the unit under test.
2. After removing an electrical assembly equipped with ES devices, place the assembly on a conductive surface such as alumi-
num foil, to prevent electrostatic charge buildup or exposure of the assembly.
3. Use only a grounded-tip soldering iron to solder or unsolder ES devices.
4. Use only an antistatic solder removal device. Some solder removal devices not classified as "antistatic (ESD protected)" can
generate electrical charge sufficient to damage ES devices.
5. Do not use freon-propelled chemicals. These can generate electrical charges sufficient to damage ES devices.
6. Do not remove a replacement ES device from its protective package until immediately before you are ready to install it. (Most
replacement ES devices are packaged with leads electrically shorted together by conductive foam, aluminum foil or compara-
ble conductive material).
7. Immediately before removing the protective material from the leads of a replacement ES device, touch the protective material
to the chassis or circuit assembly into which the device will be installed.
CAUTION :
Be sure no power is applied to the chassis or circuit, and observe all other safety precautions.
8. Minimize bodily motions when handling unpackaged replacement ES devices. (Otherwise harmless motion such as the
brushing together of your clothes fabric or the lifting of your foot from a carpeted floor can generate static electricity (ESD) suf-
ficient to damage an ES device).
2.2. How to Recycle the Lithium Ion Battery (U.S. Only)

5
2.3. How to Replace the Lithium Battery
2.3.1. Replacement Procedure
1. Remove the MAIN P.C.B.. (Refer to Disassembly Procedures.)
2. Unsolder the each soldering point of electric lead terminal for Lithium battery (Ref. No. “Z3001” at component side of MAIN
P.C.B.) and remove the Lithium battery together with electric lead terminal. Then replace it into new one.
NOTE:
The Type No. VU6450736544 includes electric lead terminals.
NOTE:
This Lithium battery is a critical component.
It must never be subjected to excessive heat or discharge.
It must therefore only be fitted in requirement designed specifically for its use.
Replacement batteries must be of same type and manufacture.
They must be fitted in the same manner and location as the original battery, with the correct polarity contacts observed.
Do not attempt to re-charge the old battery or re-use it for any other purpose.
It should be disposed of in waste products destined for burial rather than incineration.
NOTE:
Above caution is applicable for a battery pack which is for HM-TA20 series, as well.

6
3 Service Navigation
3.1. Introduction
This service manual contains technical information, which allow service personnel’s to understand and service this model.
Please place orders using the parts list and not the drawing reference numbers.
If the circuit is changed or modified, the information will be followed by service manual to be controlled with original service manual.
3.2. General Description About Lead Free Solder (PbF)
The lead free solder has been used in the mounting process of all electrical components on the printed circuit boards used for this
equipment in considering the globally environmental conservation.
The normal solder is the alloy of tin (Sn) and lead (Pb). On the other hand, the lead free solder is the alloy mainly consists of tin
(Sn), silver (Ag) and Copper (Cu), and the melting point of the lead free solder is higher approx.30°C (86°F) more than that of the
normal solder.
Distinction of P.C.B. Lead Free Solder being used
Service caution for repair work using Lead Free Solder (PbF)
• The lead free solder has to be used when repairing the equipment for which the lead free solder is used.
(Definition: The letter of “PbF” is printed on the P.C.B. using the lead free solder.)
• To put lead free solder, it should be well molten and mixed with the original lead free solder.
• Remove the remaining lead free solder on the P.C.B. cleanly for soldering of the new IC.
• Since the melting point of the lead free solder is higher than that of the normal lead solder, it takes the longer time to melt the
lead free solder.
• Use the soldering iron (more than 70W) equipped with the temperature control after setting the temperature at 350±30°C
(662±86°F).
Recommended Lead Free Solder (Service Parts Route.)
• The following 3 types of lead free solder are available through the service parts route.
RFKZ03D01KS-----------(0.3mm 100g Reel)
RFKZ06D01KS-----------(0.6mm 100g Reel)
RFKZ10D01KS-----------(1.0mm 100g Reel)
Note
* Ingredient: tin (Sn) 96.5%, silver (Ag) 3.0%, Copper (Cu) 0.5%, Cobalt (Co) / Germanium (Ge) 0.1 to 0.3%
3.3. Important Notice 1:(Other than U.S.A. and Canadian Market)
1. The service manual does not contain the following information, because of the impossibility of servicing at component level
without concerned equipment/facilities.
a. Schematic diagram, Block Diagram and P.C.B. layout of MAIN P.C.B..
b. Parts list for individual parts for MAIN P.C.B..
When a part replacement is required for repairing MAIN P.C.B., replace as an assembled parts. (Main P.C.B.)
2. The following category is /are recycle module part. Please send it/them to Central Repair Center.
• MAIN P.C.B.

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3.4. How to Define the Model Suffix (NTSC or PAL model)
There are three kinds of HM-TA20.
• a) HM-TA20P/PC
• b) HM-TA20EB/EC/EF/EG/EP/GN
• c) HM-TA20GC/PU
What is the difference is that the “INITIAL SETTING” data which is stored in Flash ROM mounted on Main P.C.B..
3.4.1. Defining methods:
To define the model suffix to be serviced, refer to the rating label and caution label which are putted on the Unit.
NOTE:
After replacing the MAIN P.C.B. or IC121, be sure to achieve update the Firmware and adjustment.
1. The firmware together with version up procedure are available at “software download” on the “Support Information from
NWBG/VDBG-AVC” web-site in “TSN system”.
2. The adjustment instruction is available at “software download” on the “Support Information from NWBG/VDBG-AVC” web-site
in “TSN system”, together with Maintenance software.
3.5. Formatting

8
4 Specifications

9

10
5 Location of Controls and Components
1 Internal microphones
2 Power button [ ]
3 Speaker
4 Hand strap fixture
Attach the hand strap to this unit and adjust its length using the stylus pen.
5 Recording button
6 Status indicator
7 LCD monitor (Touch screen)
8Screen lock button
Due to limitations in LCD production technology, there may be some
tiny bright or dark spots on the LCD monitor screen. However, this is
not a malfunction and does not affect the recorded picture.
1
82
3
4
6
7
5


9 Tripod receptacle
●
If you attach a tripod
with a 5.5 mm (0.22 S)
screw or larger, it may
damage this unit.
10 LED light
11 Lens
91011

11
13 SD card door
14 Card slot
15 Headphone terminal [ ]
●
Use the earphone/headphone with a 
part width 11 mm (0.43 S)orsmaller.
16 Reset button [RESET]
17 HDMI mini connector
18 HDMI/Headphone cover
RESET
13 14
15
16
17
18
19
20
21

φ
19 USB Latch
20 USB terminal [ ]
21 USB terminal cover
About locks for USB terminal cover, HDMI/Headphone cover and
SD card door
Each door/cover is equipped with a LOCK lever to lock the open/close
lever. When opening and closing the door/cover, slide the LOCK lever
and then slide the open/close lever.
USB terminal cover HDMI/Headphone
cover SD card door
 LOCK lever
 Open/close lever














12
6 Troubleshooting Guide
6.1. Confirmation Flow of Waterproof

13
6.2. Airtight Inspection with Air Leak Tester

14
6.3. Air Leak Tester (RFKZ0528) Operating Instruction

15

16

17

18
7 Service Fixture & Tools
7.1. When Replacing the Main P.C.B.
After replacing the MAIN P.C.B. or IC121, be sure to achieve update the Firmware and adjustment.
1. The firmware together with version up procedure are available at "software download" on the "Support Information from
NWBG/VDBG-AVC" web-site in "TSN system".
2. The adjustment instruction is available at "software download" on the "Support Information from NWBG/VDBG-AVC" web-site
in "TSN system", together with Maintenance software.
7.2. Necessary Tool & Jig

19
8 Disassembly and Assembly Instructions
8.1. Disassembly Flow Chart
This is a disassembling chart.
When assembling, perform this chart conversely.
8.2. PCB Location

20
8.3. Disassembly Procedure
No. Item Fig Removal
1 Battery Fig. D1 2 Screws (A)
1 Screw (B)
2 Screws (C)
Fig. D2 4 Screws (D)
Shaft Cover
Fig. D3 NOTE: (When Replacing)
Fig. D4 CN301 (Flex)
CN302 (Flex)
CN171 (Flex)
Battery
2 LCD Fig. D5 2 Screws (E)
2 Screws (F)
Sheet
Cabinet Gasket
2 Convexes
Fig. D6 Monitor Holder
LCD
3 Rear Case Unit Fig. D7 Monitor Spacer
Monitor Spacer B
Rear Case Unit
4 USB Cover Unit Fig. D8 USB Cover Shaft
USB Cover Spring
USB Cover Unit
5 Jack Cover Unit Fig. D9 Jack Cover Shaft
Jack Cover Spring
Jack Cover Unit
6 Main P.C.B. Fig. D10 1 Screw (G)
4 Screws (H)
1 Convex
Main P.C.B.
7 USB Unit Fig. D11 CN131 (Flex)
USB Unit
8 Mic Holder Unit Fig. D12 4 Solders
Mic Holder Unit
9 Battery Holder Unit Fig. D13 2 Screws (J)
Battery Holder Earth
2 Screws (K)
2 Convexes
Heat Sink Back
1 Convex
Fig. D14 1 Locking tab
1 Convex
USB Earth
1 Screw (L)
Fig. D15 3 Solders
1 Locking tab
1 Convex
Battery Holder Unit
10 CCD Unit Fig. D16 1 Locking tab
Lens Holder
Lens Spacer
Fig. D17 CN901 (Flex)
CCD Unit
12 Front Case Unit Fig. D18 SD Cover Shaft
SD Cover Spring
SD Cover Unit
SD Shield
2 Convexes
Heat Sink Front
Fig. D19 Reset Knob SW
Reset Knob Spring
Front Case Unit