· In the case that the MONITOR C.B.A. is TYPE “C” and “D”.
Exchange only the LCD PANEL UNIT.
CAUTION:
It does the confirmation of the MONITOR C.B.A. and LCD PANEL UNIT without fail on the occasion of the repair and please
do the part exchange.
6
PV-GS250PP
2 INTRODUCTION
2.1. INTRODUCTION
This service manual contains technical information which will 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, this information will be followed by supplement service manual to be filed with o riginal service
manual.
Note 1:
These movie camera uses AC Adaptor is PV-DAC14D
2.2. ABOUT LEAD FREE SOLDER (PbF)
7
PV-GS250PP
3 SAFETY PRECAUTIONS
3.1. GENERAL GUIDELINES
1. IMPORTANT SAFETY NOTICE
There are special components used in this equipment which are important for safety. These parts are marked by
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.
3.2. 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 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 1MW and 5.2MW. When the exposed metal does not have a return path to the chassis,
the reading must be infinity.
in the
3.3. 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” to exposed metallic part on the set. And
connect “B” to a good earth ground, as shown in Figure 1.
3. Use an AC voltmeter, with 1 kW/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 ACplugin the ACoutlet and repeateach of the
above measurements.
6. The potential at any point should not exceed 0.25 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
8
PV-GS250PP
4 PREVENTION OF ELECTRO STATIC DISCHARGE (ESD)
TO ELECTROSTATICALLY SENSITIVE (ES) DEVICES
Some semiconductor (solid state) devices can be damaged easily by static electricity. Such components commonly are called
Electrostatically 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 electro static 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
aluminum 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 comparable
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)
sufficient to damage an ES device).
9
PV-GS250PP
5 HOW TO REPLACE THE LITHIUM BATTERY
(PROCEDURE)
1. Remove the Side Case (L) C.B.A.. (Refer to Disassembly Procedures.)
2. Unsolder the Lithium Battery “ML920S/F9D” and then replace the new one. (See Fig. B1.)
3. Danger of explosion if battery is incorrectly replaced. Replace only with the same or equivalent type.
Fig. B1
Note:
The lithium battery is a critical component. (Type No.: N9ZZ00000297.)
It must never be subjected to excessive heat or discharge.
It must therefore only be fitted in equipment designed specifically for its use.
Replacement batteries must be of the 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.
10
6 HOW TO RECYCLE THE LITHIUM BATTERY
PV-GS250PP
11
PV-GS250PP
7 ADJUSTMENT PROCEDURES
7.1. DISASSEMBLE FLOW CHART
This flow chart indicates the disassembly steps the cabinet parts, C.B.A. and Mecha. Unit in order to access to be serviced. When
reinstalling, perform the steps in the reverse order.
1Cassette Up UnitFig. M1 It makes the mechanism position in Eject condition (For Battery)
Fig. M2 3-Screws (A)
Fig. M3 3-Tabs
Fig. M4 It remove the piece arrangement unit from rail department
2Cylinder UnitFig. M5 1-Screw (B)
Fig. M6 3-Screw (C)
Cylinder Unit
Fig. M1
Fig. M2
22
PV-GS250PP
Fig. M3
23
PV-GS250PP
Fig. M4
Fig. M5
24
PV-GS250PP
Fig. M6
25
PV-GS250PP
7.4. DISASSEMBLY PROCEDURES OF CAMERA LENS UNIT
The following flowchart describes order or steps for removing the Camera lens unit and certain printed circuit boards in order to
make access to the item needing service.
To reassemble the unit follow the steps in reverse order.
Fig. L1
Fig. L2
26
8 SERVICE CAUTION
8.1. HOW TO DISCHARGE THE CAPACITOR ON FRONT C.B.A.
8.2. EEPROM DATA FOR SPARE PARTS OF THE MAIN C.B.A.
PV-GS250PP
When the Main C.B.A. is replaced, the fixed and average data must be changed by Tatsujin kit according to the Movie Camera’s
suffix.
Then, confirm and/or adjust the VTR and Camera section one by one.
8.3. SERVICE EXTENSION CABLE FOR ALL C.B.A. INCLUDED IN MODULE
UNIT
This models is required the following extension cables for all connections.
Use the following extension cables when checking or adjusting individual circuit boards.
27
PV-GS250PP
How to use extension cables.
Fig. T1
28
8.4. LOCATION FOR CONNECTORS OF THE MAIN C.B.A. & SUB C.B.A.
8.4.1. MAIN C.B.A.
FP6503
K1MN26A00068
FP3402
K1MN10A00074
148
5
IC2006
(EEPROM)
FP6505
K1MN21BA0058
PS3001
K1KBC0A00037
PV-GS250PP
FP1001
K1MN14BA0062
FP5001
K1MN08BA0009
FP2204
K1MN08BA0010
FP2202
K1MN10BA0008
FP6501
K1MN12BA0059
FP2203
K1MN18BA0010
FP2201
K1MN18BA0008
PP3001
K1KA20B00154
(COMPONENT SIDE)
FP2001
K1MN06BA0107
FP6502
K1MN14BA0061
29
FP6504
K1MN27BA0058
(FOIL SIDE)
PV-GS250PP
8.4.2. SUB C.B.A.
FP601
K1MN22A00065
FP4002
K1MN12BA0067
FP701
K1MN45AA0017
FP201
K1MN39BA0058
FP602
K1MN27BA0058
PP301
K1KAC0A00014
(COMPONENT SIDE)
30
(FOIL SIDE)
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