Sony MACRO TWIN HVL-MT24AM User manual

SERVICE MANUAL
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Sony Corporation
HVL-MT24AM
SERVICE NOTE
SPECIFICATIONS
FRAME SCHEMATIC DIAGRAM
DISASSEMBLY REPAIR PARTS LIST
ADJUSTMENTS
HVL-MT24AM
Ver. 1.3 2015.06
MACRO TWIN FLASH KIT
2015F08-1
© 2015.06
Published by Sony Techno Create Corporation9-852-155-14
US Model
Canadian Model
AEP Model
Chinese Model
E Model
Revised-2
Replace the previously issued
SERVICE MANUAL 9-852-155-13
with this Manual.

— 2 —
HVL-MT24AM
SPECIFICATIONS
The macro twin flash kit provides flexible lighting for macro nature photography. It is ideal for close-up photography of flowers, insects, small objects,
and so on.
• Freedom to change the attachment position and angle of the flashtube enables more expressive photography.
• Attaching two-length adjustable arms between the twin flash units and holders makes it possible to change the lighting for high magnification
close-up photography.
• Using the supplied diffuser enables softer lighting.
• The supplied wide panel expands flash coverage to a focal length of 24 mm.
• Modeling flash function can check shadows before photographing.
Guide number
Normal flash (ISO 100)
Power 1 tube 2 tubes Wide Diffuser
level panel
1/1 17 24 11 7
1/2 12 17 8 5
1/4 8.5 12 5.6 3.5
1/8 6 8.5 4 2.5
1/16 4.2 6 2.8 1.8
1/32 3 4.2 2 1.3
1/64 2.1 3 1.4 0.9
Wide panel and diffuser is for one tube.
Frequency/Repetition
Nickel-
Alkaline Lithium hydride
(1550 mAh)
Frequency (sec) 0.2~6 0.2~6 0.2~5
Repetition (times) 200~4000 500~10000 150~3000
• Repetition is the approximate number of times that are
possible before a new battery is completely dead.
Flash coverage
Flash Twin Wide Diffuser
coverage flash panel
Vertical 45 °60 °90 °
Horizontal 60 °78 °90 °
Continuous flash performance
40 flashes at 5 flashes per second
(Power level 1/32, nickel-metal hydride battery)
Flash control
Flash control using pre-flash, TTL direct metering,
Manual flash
Dimension (Approx.)
Macro flash controller
68 ×123 ×91 mm (2 3/4 ×4 7/8 ×3 5/8 in.) (w ×h ×d)
Twin flash unit
43 ×41 ×37 mm (1 3/4 ×1 5/8 ×1 1/2 in.) (w ×h ×d)
Mass (Approx.)
Macro flash controller 235 g (8.3 oz.) (without batteries)
Twin flash unit 33 g (1.2 oz.) (per twin flash unit)
Operating temperature
0 °C to 40 °C (32 °F to 104 °F)
Included items
Macro flash controller (1), Twin flash unit (2), Holder (1),
Arm (2), Adaptor ring ø 49mm (1),
Adaptor ring ø 55mm (1), Wide panel (2), Diffuser (2),
Cord reel (2), Controller case (1), Flash case (1),
Set of printed documentation
Functions in these operating instructions depend on testing conditions
at our firm.
Design and specifications are subject to change without notice.

—3 —
HVL-MT24AM
TABLE OF CONTENTS
Section Title Page
1. SERVICE NOTE
1-1. Chemicals ······································································· 1-1
1-2. Exterior Parts ·································································· 1-1
1-3. Unleaded Solder ····························································· 1-1
1-4. Safety Check-out ···························································· 1-2
2. DISASSEMBLY
2-1. Disassembly ··································································· 2-2
3. FRAME SCHEMATIC DIAGRAM
3-1. Frame Schematic Diagram ············································· 3-1
4. REPAIR PARTS LIST
4-1. Exploded Views ······························································ 4-1
4-2. Supplied Accessories ······················································ 4-3
5. ADJUSTMENTS
5-1. Preparations ···································································· 5-1
5-2. Initialization of EEPROM (Writing of Initial Value) ·····5-4
5-3. Charging Voltage Adjustment ········································· 5-6
5-4. Full-charge Voltage/Stop Charge Voltage Check ··········· 5-8
5-5. Assist Mode ···································································· 5-9
5-6. Error Code List ····························································· 5-12

1-1
HVL-MT24AM
1. SERVICE NOTE
1-1. Chemicals
Some chemicals used for servicing are highly volatile.
Their evaporation caused by improper management affects your health and environment, and wastes resources.
Manage the chemicals carefully as follows.
•Store chemicals sealed in a specific place to prevent from exposure to high temperature or direct sunlight.
•Avoid dividing chemicals into excessive numbers of small containers to reduce natural evaporation.
•Keep containers sealed to avoid natural evaporation when chemicals are not in use.
•Avoid using chemicals as much as possible. When using chemicals, divide only required amount to a small plate from the container and
use up it.
1-2. Exterior Parts
Be careful to the following points for exterior parts used in this unit.
•Use a piece of cleaning paper or cleaning cloth for cleaning exterior parts. Avoid using chemicals.
Even if you have to use chemicals to clean heavy dirt, don’t use paint thinner, ketone, nor alcohol.
•Insert the specific screws vertically to the part when installing a exterior part.
Be careful not to tighten screws too much.
1-3. Unleaded Solder
This unit uses unleaded solder.
Boards requiring use of unleaded solder are printed with the lead free mark (LF) indicating the solder contains no lead.
(Caution: Some printed circuit boards may not come printed with the lead free mark due to their particular size.)
: LEAD FREE MARK
Be careful to the following points to solder or unsolder.
•Set the soldering iron tip temperature to 350 °C approximately.
If cannot control temperature, solder/unsolder at high temperature for a short time.
Caution: The printed pattern (copper foil) may peel away if the heated tip is applied for too long, so be careful!
Unleaded solder is more viscous (sticky, less prone to flow) than ordinary solder so use caution not to let solder bridges
occur such as on IC pins, etc.
•Be sure to control soldering iron tips used for unleaded solder and those for leaded solder so they are managed separately. Mixing
unleaded solder and leaded solder will cause detachment phenomenon.

1-2
HVL-MT24AM
1-4. SAFETY CHECK-OUT
After correcting the original service problem, perform the following safety checks before releasing the set to the customer.
1. Check the area of your repair for unsoldered or poorly-soldered connections. Check the entire board surface for solder splashes and
bridges.
2. Check the interboard wiring to ensure that no wires are “pinched”or contact high-wattage resistors.
3. Look for unauthorized replacement parts, particularly transistors, that were installed during a previous repair. Point them out to the
customer and recommend their replacement.
4. Look for parts which, through functioning, show obvious signs of deterioration. Point them out to the customer and recommend their
replacement.
5. Check the B+ voltage to see it is at the values specified.
6. Flexible Circuit Board Repairing
•Keep the temperature of the soldering iron around 270 °C during repairing.
•Do not touch the soldering iron on the same conductor of the circuit board (within 3 times).
•Be careful not to apply force on the conductor when soldering or unsoldering.
SAFETY-RELATED COMPONENT WARNING!!
COMPONENTS IDENTIFIED BY MARK 0OR DOTTED LINEWITH
MARK 0ON THE SCHEMATIC DIAGRAMS AND IN THE PARTS
LIST ARE CRITICAL TO SAFE OPERATION. REPLACE THESE
COMPONENTS WITH SONY PARTS WHOSE PART NUMBERS
APPEAR AS SHOWN IN THIS MANUAL OR IN SUPPLEMENTS
PUBLISHED BY SONY.
ATTENTION AU COMPOSANT AYANT RAPPORT
À LA SÉCURITÉ!
LES COMPOSANTS IDENTIFÉS PAR UNE MARQUE 0SUR LES
DIAGRAMMES SCHÉMATIQUES ET LA LISTE DES PIÈCES SONT
CRITIQUES POUR LA SÉCURITÉ DE FONCTIONNEMENT. NE
REMPLACER CES COMPOSANTS QUE PAR DES PIÈSES SONY
DONT LES NUMÉROS SONT DONNÉS DANS CE MANUEL OU
DANS LES SUPPÉMENTS PUBLIÉS PAR SONY.
CAUTION
Danger of explosion if battery is incorrectly replaced.
Replace only with the same or equivalent type.

2-1
HVL-MT24AM
2. DISASSEMBLY
Cut and remove the part of gilt
which comes off at the point.
(Be careful or some
pieces of gilt may be left inside)
NOTE FOR REPAIR
•Make sure that the flat cable and flexible board are not cracked of bent at the terminal.
Do not insert the cable insufficiently nor crookedly.
•When remove a connector, dont’pull at wire of connector. It is possible that a wire is snapped.
•When installing a connector, dont’press down at wire of connector.
It is possible that a wire is snapped.
•Do not apply excessive load to the gilded flexible board.
DISCHARGING OF THE CHARGING CAPACITOR ONTHE PC BOARD SET, D
The charging capacitor of the PC board set, D is charged up to
the maximum 330 V potential.
There is a danger of electric shock by this high voltage when the
capacitor is handled by hand. The electric shock is caused by
the charged voltage which is kept without discharging when the
main power of the unit is simply turned off. Therefore, the
remaining voltage must be discharged as described below.
Preparing the Short Jig
To preparing the short jig, a wire is attached to each end of a
resistor of 1 kΩ/1 W (1-215-869-11).
Wrap insulating tape fully around the leads of the resistor to
prevent electrical shock.
1 kΩ/1 W
Wrap insulating tape.
R:1 kΩ/1 W
(Part code: 1-215-869-11)
Note: High-voltage cautions
Discharging the Capacitor
Short-circuit between the two points
with the short jig about 10 seconds.
Do both A and B.

2-2
HVL-MT24AM
2-1. DISASSEMBLY
2-1-1. BATTERY CASE UNIT AND SHOE FOOT UNIT
A
C
C
B
(See Page 3-2.)
(Note 1)
B
A
D
EXPLODED VIEW
HELP01
HELP03
HELP02
2Side Rubber
7
Battery Lid
Set
0
PC Board
Set (D)
!- Battery Case Unit
8Bounce Shaft (A) Set
9
Bounce
Shaft (B)
![ Cover (D) Set
!] PC Board
Set (G)
!= Connector
Socket Set
6Cover (C) Set
1Shoe Foot Unit
4Cover (B)
5Click
Connector
Cap (A)
Spacer
!\ Dials
!; Cover (A) Set 3Side Rubber
Note 1
Refer to page 2-1" Discharging of the charging capacitor on the PC board set, D ",
when discharging the capacitor.
D
HELP03

2-3
HVL-MT24AM
2-1-2. COVER (D) SET
EXPLODED VIEW
Cover (D) Set Ornamental Sheet
Label
Battery Lid SP
Click

HVL-MT24AM
HELP
HELP
Note for assembling and grease applying positions are shown.
HELP01
Apply the grease (G-85) to the instruction part as shown in the figure.
Grease (G-85): J-6082-626-A
HELP02
Apply the grease (G-85) to the instruction part as shown in the figure.
Grease (G-85): J-6082-626-A
Apply the grease (G-85)
Apply the grease (G-85)
Apply the grease (G-85)

HVL-MT24AM
HELP
HELP03
Apply the grease (G-85) to the instruction part as shown in the figure.
Grease (G-85): J-6082-626-A
Apply the grease (G-85) Apply the grease (G-85)