Sony MPK-DVF Service Manual ▷ View online
– 5 –
– 6 –
Water
Water depth
: 1m or more
: 1m or more
Water tank, bathtub, swimming pool, etc. Marine Pack
1. Concerning Defects
Marine Pack defects are classified as the three following types.
1) Operational defects
This type mainly involves malfunctions caused by electrical cir-
cuit or parts defects. Repair is the same as for normal products.
cuit or parts defects. Repair is the same as for normal products.
2) Damaged and missing parts
Waterproofing is sometimes affected by the locations of defects
and symptoms. Before making repairs, always use the check list
to check the type of defect.
and symptoms. Before making repairs, always use the check list
to check the type of defect.
Note :
Refer to page 8 for the check list.
3) Water leaks
After the discovery of a defect or after making repairs, it is nec-
essary to perform either a hydraulic pressure test or simple wa-
ter leak test using a water tank.
essary to perform either a hydraulic pressure test or simple wa-
ter leak test using a water tank.
2. Concerning Water Leaks
To ensure waterproofing, O-rings are used in the holes in the
Marine Pack housing for openings, shafts, display windows and
the front glass. Water leaks are possible in any of these locations
but the conditions under which water leaks occur differ for the
openings and the other parts.
Marine Pack housing for openings, shafts, display windows and
the front glass. Water leaks are possible in any of these locations
but the conditions under which water leaks occur differ for the
openings and the other parts.
1) Water leaks at openings
Openings are waterproofed using O-rings compressed by the
force of the buckle spring.
Near the surface of the water, where little water pressure is ap-
plied to Marine Pack, the force of the buckle alone provides
sufficient waterproofing. As the water pressure applied to Ma-
rine Pack increases at greater depths, however, the force applied
to the O-rings increases due to the water pressure to increase the
waterproofing.
Because of this, due to the type of waterproofing construction
used, opening water leaks are more prone to occur in shallow
water (approx. 2 meters) than in deep water. Also, since there is
a gap between the front and rear housings, sand and dirt tend to
enter and adhere to the O-ring in shallow water. When the cover
is opened, this sand and dirt can then enter under the O-ring and
cause a water leak the next time Marine Pack is used.
This, most water leaks in the openings are the result of adhered
dirt, sand, hair and other foreigh matter as well as O-ring and
housing damage due to careless handing.
force of the buckle spring.
Near the surface of the water, where little water pressure is ap-
plied to Marine Pack, the force of the buckle alone provides
sufficient waterproofing. As the water pressure applied to Ma-
rine Pack increases at greater depths, however, the force applied
to the O-rings increases due to the water pressure to increase the
waterproofing.
Because of this, due to the type of waterproofing construction
used, opening water leaks are more prone to occur in shallow
water (approx. 2 meters) than in deep water. Also, since there is
a gap between the front and rear housings, sand and dirt tend to
enter and adhere to the O-ring in shallow water. When the cover
is opened, this sand and dirt can then enter under the O-ring and
cause a water leak the next time Marine Pack is used.
This, most water leaks in the openings are the result of adhered
dirt, sand, hair and other foreigh matter as well as O-ring and
housing damage due to careless handing.
2) Water leaks at other openings
Parts where there are holes in the housing (shafts, display win-
dow, front and rear glass) are constructed with O-rings mechani-
cally compressed by screws and nuts.
Due to the construction, these places cannot be reached with the
hands : therefore, the waterproofing is more secure than that of
the openings.
The causes of water leaks are damage of the parts compressing
the O-rings, loosening of the screws and nuts fastening the parts
and improper reassembly.
dow, front and rear glass) are constructed with O-rings mechani-
cally compressed by screws and nuts.
Due to the construction, these places cannot be reached with the
hands : therefore, the waterproofing is more secure than that of
the openings.
The causes of water leaks are damage of the parts compressing
the O-rings, loosening of the screws and nuts fastening the parts
and improper reassembly.
3. Water Leak Check Methods
After the discovery and repair of water leak, it is necessary to per-
form a hydraulic pressure test and water leak test using a water
tank.
form a hydraulic pressure test and water leak test using a water
tank.
1) Opening water leak check method
As was mentioned above, due to the construction, water leaks in
openings are more prone to occur in shallow water than in deep
water. Consequently, a simple water leak test using a water tank is
sufficient in many cases, without performing a hydraulic pres-
sure test.
openings are more prone to occur in shallow water than in deep
water. Consequently, a simple water leak test using a water tank is
sufficient in many cases, without performing a hydraulic pres-
sure test.
*Water leak test
In this method, Marine Pack immersed in a tank filled with wa-
ter and checked for water leaks.
Marine Pack should be left immersed in the water tank (or bath-
tub, swimming pool, etc.) for at least 15-20 minutes with the
covers closed. The water depth should be at least 1 meter.
ter and checked for water leaks.
Marine Pack should be left immersed in the water tank (or bath-
tub, swimming pool, etc.) for at least 15-20 minutes with the
covers closed. The water depth should be at least 1 meter.
– 7 –
– 8 –
TMR-IF330R
2) Water leak check methods for other waterproofed lo-
cations.
cations.
In addition to water leaks caused by damaged parts and loose
screws, there are also water leaks at other waterproofed loca-
tions which cannot be detected with a water leak test : therefore,
the hydraulic pressure test must be used.
screws, there are also water leaks at other waterproofed loca-
tions which cannot be detected with a water leak test : therefore,
the hydraulic pressure test must be used.
**Hydraulic pressure test
In this test, Marine Pack is immersed in a water tank called a
hydraulic pressure vessel, pressure is applied using compressed
air and checks are made for water leaks and the ability to with-
stand water pressure is tested.
Extreme pressure is applied to Marine Pack underwater.
Water leaks may occur when this pressure is first applied. In
such cases, the water leak check must be made using the hy-
draulic pressure test with a hydraulic pressure vessel.
hydraulic pressure vessel, pressure is applied using compressed
air and checks are made for water leaks and the ability to with-
stand water pressure is tested.
Extreme pressure is applied to Marine Pack underwater.
Water leaks may occur when this pressure is first applied. In
such cases, the water leak check must be made using the hy-
draulic pressure test with a hydraulic pressure vessel.
4. Causes of Water Leaks (excluding parts damage)
Water leaks in openings
1) When the covers have been closed with sand, dirt and hair ad-
1) When the covers have been closed with sand, dirt and hair ad-
hered to the O-rings, O-ring grooves, housing O-ring contact
surface or waterproof packing.
surface or waterproof packing.
2) When the cover is closed with an O-ring out of its groove or a
cord is caught in the cover.
3) When an O-ring is damaged or cracked (aging).
4) When there is a long scratch which crosses the housing O-ring
4) When there is a long scratch which crosses the housing O-ring
contact surface.
5) When a cover is not tightly closed due to a defective buckle.
• Water leaks at other waterproofed locations
6) When there are scratches on the surfaces of the parts which com-
• Water leaks at other waterproofed locations
6) When there are scratches on the surfaces of the parts which com-
press the O-rings.
7) When the Parts which compress are loose.
8) When tightening with sand, dirt and hair adhered to an O-ring or
8) When tightening with sand, dirt and hair adhered to an O-ring or
part which compresses the O-ring.
9) When an O-ring has not been installed.
Causes 1)-5) and 9) above can be discovered relatively easily
using the water leak test described above.
using the water leak test described above.
5. Causes of Water Leaks (excluding parts damage)
Water leaks in openings
1) When the covers have been closed with sand, dirt and hair ad-
1) When the covers have been closed with sand, dirt and hair ad-
hered to the O-rings, O-ring grooves, housing O-ring contact
surface or waterproof packing.
surface or waterproof packing.
2) When the cover is closed with an O-ring out of its groove or a
cord is caught in the cover.
3) When an O-ring is damaged or cracked (aging).
4) When there is a long scratch which crosses the housing O-ring
4) When there is a long scratch which crosses the housing O-ring
contact surface.
5) When a cover is not tightly closed due to a defective buckle.
• Water leaks at other waterproofed locations
6) When there are scratches on the surfaces of the parts which com-
• Water leaks at other waterproofed locations
6) When there are scratches on the surfaces of the parts which com-
press the O-rings.
7) When the Parts which compress are loose.
8) When tightening with sand, dirt and hair adhered to an O-ring or
8) When tightening with sand, dirt and hair adhered to an O-ring or
part which compresses the O-ring.
9) When an O-ring has not been installed.
Causes 1)-5) and 9) above can be discovered relatively easily
using the water leak test described above.
using the water leak test described above.
Compressor
Pressure gauge
Compressed air
Hydraulic pressure vessel
Marine Pack
Water
6. Repair Location and Hydraulic Pressure Test
When a defect is discovered or a repair is made at a location
related to the waterproofness of Marine Pack, the hydraulic pres-
sure test must be performed. Repairs at locations which require
the hydraulic pressure test, and the hydraulic pressure test itself,
are performed at the factory : therefore, always check the type
of defect using the check list before making repairs.
related to the waterproofness of Marine Pack, the hydraulic pres-
sure test must be performed. Repairs at locations which require
the hydraulic pressure test, and the hydraulic pressure test itself,
are performed at the factory : therefore, always check the type
of defect using the check list before making repairs.
Type of
defect
Type of
defect
Defect location and repair method
Defect location / symptom
Repair method
Hydraulic
pressure test
Hydraulic
pressure test
Improper
operation
Operational symptoms
when a video camera
recorder is installed
when a video camera
recorder is installed
Operational check
during normal
connection
during normal
connection
Unit defect (including
improper connector
connections)
improper connector
connections)
Improper switch
operation
operation
Operational
failure due to
sinking
failure due to
sinking
Refer to the parts
damage item
damage item
Replace damaged
parts
parts
Replace defective Parts
(including PC Boards,
connectors, etc.)
(including PC Boards,
connectors, etc.)
Refer to the water
leak and sinking items.
leak and sinking items.
Replace part
(repair housing when screws
are affected)
(repair housing when screws
are affected)
Necessary
Necessary
Light damage
Light damage
Damage
Damage
Damage
Damage, loss
Damage
Heavy damage
Parts damage
Heavy damage
Polish using waterproof
sandpaper
sandpaper
Replace part
Replace part
Replace part
Replace part
Replace part
Replace part
Replace part
Replace part
Damage
Replace part
Replace part
Replace part (life : 2 years)
Scratch
Scratch, agin
Underwater microphone
Water leakage sensor box.
Determine cause using the hydraulic pressure test
Note :
Parts with an
*
mark are incorporated into the right grip and cannot be detached so the right grip must be replaced as one set.
Camera mount
O-ring
Waterproofing O-ring
Exterior part
Deformation, damage
Front glass section
Grip area
Housing related
Rear glass section
Front glass
Eye cap
Rear glass
(Switch related)
REC START / STOP switch (button)*
ZOOM switch (button)*
PHOTO switch (button)*
AUTO FOCUS ON / OFF switch (button)
POWER switch (lever)
REC START / STOP switch (button)*
ZOOM switch (button)*
PHOTO switch (button)*
AUTO FOCUS ON / OFF switch (button)
POWER switch (lever)
Damage or
coming off
coming off
Deformation,
scratch,
damage or
coming off
scratch,
damage or
coming off
Lever
Button
Switch
Button
Switch
Housing repair
(overhaul mounting section)
(overhaul mounting section)
Video camera recorder
mounting base area
mounting base area
Repair the defect or replace
the part.
the part.
Sinking due
to water leak
to water leak
Buckle
(including mounting screw)
(including mounting screw)
Necessary
Necessary
Necessary
Necessary
Necessary
Unnecessary
Unnecessary
Unnecessary
Unnecessary
Unnecessary
Unnecessary
Unnecessary
Unnecessary
Defective Marine Pack
Defective circuit
Unit repair
NG
OK
Improper contact
Replace connector
Defective switch
Replace micro switch
Open wiring
Replace
– 9 –
– 10 –
MPK-DVF
SECTION 2
SCHEMATIC DIAGRAM
2-1. SCHEMATIC DIAGRAM
21
22
23
24
25
26
27
28
2
3
5
4
6
7
8
9
10
1
11
12
13
14
15
16
17
18
19
20
CAM
VTR
MEMORY
LEAK
TEST
RESET
X0
X1
VSS
P. SEL
LANC IN
LED
LED
PEC. REV
VCC
NC
START /STOP
FOCUS
LANC OUT
AVR
AVSS
PHOTO
VTR SW2
VTR SW1
V. ZOOM
TELE
WIDE
HIGH
REQ
1
3
2
C1
10
16V
C5
47
6.3V
47
6.3V
C9
0.047
0.047
C5
22
16V
22
16V
R8
22K
22K
CN2
B028-ZR
AUTO FOCUS
2
1
1
2
5
4
3
2
1
+B
1
LANC 2
GND 3
CN1
LANC
S35-PH-K-3
CN4
SLP-4R2
LEAK SENSOR
SW1
ESE102MH14
STAND BY
C2
10
16V
C3
1
50V
R2
10K
10K
R3
330
330
R4
330
330
R5
22K
22K
R6
47K
47K
R7
47K
47K
R9
22K
22K
R14
2.2K
2.2K
R13
220K
220K
R17
33K
33K
R18
10K
10K
R24
3.3K
3.3K
R25
100
100
R25
3.3K
3.3K
R22
47K
47K
R23
12K
12K
R19
22K
22K
R20
10K
10K
R21
10K
10K
C10
0.1
0.1
C8
0.1
0.1
C12
0.1
0.1
C11
0.01
0.01
C4
1
50V
D12
PH310
PH310
R12
22K
22K
R10
330K
330K
R11
100K
100K
R1
1M
1M
R15
1M
1M
R16
1M
1M
D3
1SS356
1SS356
D4
GL3HY8
GL3HY8
D5
GL3HD8
GL3HD8
D6
1SS356
1SS356
D2
1SS355
1SS355
D7
1SS355
1SS355
D9
1SS356
1SS356
D10
1SS356
1SS356
D11
1SS356
1SS356
D1
MZU9.1B2
D8
MZU9.1B2
IC3
9-81350HG-KO-T1
8
9
14
IC2
4001BF
4001BF
IC2
4001BF
4001BF
IC2
4001BF
4001BF
IC2
4001BF
4001BF
11
4
5
6
10
12
13
7
Q6
DTC115TKA
Q7
2SC2412K
Q8
2SC2412K
Q9
2SA1097AK
Q1
DTC115TKA
Q2
DTC144EKA
Q4
DTC144EKA
Q5
DTC144EKA
X1
4.00MHz
IC1
MB89191APF-G-266-BND
Q3
DTC144EKA
1
2
3
CN3
S28-ZR
S-OUT
CSTCC4.00MGW
LM-57 BOARD
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
• The LM-57 board is not listed on the schematic due to its substitution.
LM-57
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