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the  winding-base  plate,  rotate  the  main 
wind  gear  until  one  of  its  punch  marks 
aligns w ith  the punch mark on the second 

gear.  The  wind  latch  should  then  be 

against  one  of  the three  lugs on  the  main 

wind  gear,  Fig.  127.

Seat  the  winding-base  plate  and 

recheck  the  sprocket  timing.  W hen  you 
rotate  the  sprocket  toward  the  rewind 

end  of the camera  —  thereby bringing the 
wind-gear lug against the wind  latch,  Fig. 

127  —  the  sprocket teeth  should  be  posi­
tioned  as  shown  in  Fig.  126.

A fter  replacing  the  screws  to  hold  the 

winding-base  plate,  seat  the  wind  shaft. 
You'll  have  to  hold  the  wind-shaft  spring 
against  its  tension  to  connect  it  to  the 

body-casting  screw.  Then  complete  the 

reassembly  at  the  bottom   of  the  camera

—  seat  the  lock  plate,  Fig.  122,  replace 

the  transport  cam,  and  reconnect  the 
springs,  Fig.  121.

REPLACING  AND  ADJUSTING 

THE  COUNTER  DIAL

Replace  the wind-ratchet  pawl  and  the 

wind  seat.  Then  reconnect the  springs  to 

the  advance-indicator  lever  as  shown  in 
Fig.  119.

Now  seat  the  counter  dial  and  the 

counter  stop  as  one  assembly.  But, 
before  you  replace  the  screw  that  holds 

the  counter stop,  apply  the  initial  tension 
to  the  counter  spring.  Just  rotate  the 
counter dial  one turn  in a clockwise direc­

tion.  Swing  aside  the  counter  stop  and 

rotate  the  counter  dial  to  the  start  posi­

tion  —  until  the  " S "   points  to  the end  of 
the  camera,  Fig.  118.  Then  move  the 
counter  stop  into  engagement  w ith  the 

stop  tab  on  the  counter  gear  and  replace 
the  counter-stop  screw.

The  " S "   on  the  counter dial  should  re­

main  aligned  as  shown  in  Fig.  118.  If  the 

" S "   appears  off-center,  it  w o n 't  align 
w ith  the  index  on  the top  cover.  You  can 
then  adjust  the  start  position  by  bending 

the  upper  lug  on  the  counter stop.  To  be 

sure  of  the  proper  alignment,  you  might 
temporarily  replace  the  top  cover.  Check 

to  see  that  the  " S "   aligns  w ith  the  top- 
cover  index.

Next  replace  the  camera  back  and 

check  the  operation  of  the  counter  ac­
tuator.  As you  close the camera  back,  the 
counter  actuator  should  move  into  the 

slot between the first and second teeth of 

the  counter  gear,  Fig.  125.  If the  counter 

actuator  doesn't  align  w ith  the  tooth  slot

—  and  instead  comes  against  one  of  the 

gear  teeth  —  you'll  see  the  counter  dial 
shift  in  position  as  you  close  the  camera 

back.

Adjust the alignment of the counter ac­

tuator  by  shifting  the  base  plate  of  the

counter-advance assembly.  Fig.  124.  Just 

loosen the screw and  move the base plate 

until  the  counter  actuator  aligns  w ith  the 

first  tooth  slot.

OTHER  TRANSPORT 
ADJUSTMENTS

If the film  fails to transport,  suspect the 

adjustment  on  the  wind  latch,  Fig.  128. 
A t the end  of  the cocking  cycle,  the wind 

latch should drop into engagement w ith a 
lug  on  the  main  w ind  gear.  However,  if 

the  wind  latch  fails  to  engage  a  lug,  the 
film   can  turn  the  sprocket  in  the  reverse 
direction.

Check  the  action  by  using  your  finger 

to put reverse pressure on the sprocket as 

you  cock  the shutter.  You  should  see the 
w ind  latch  drop  into  engagement slightly 

before  the  wind-ratchet  pawl.  Fig.  120, 
disengages  from   the  teeth  of  the  wind 

shaft.

You  should  then  find  that  you  can't 

turn  the  sprocket  in  the  reverse  direction

—  the  w ind  latch  prevents  reverse  rota­

tion.  To adjust the wind  latch,  loosen  the 

screw  and  turn  the  eccentric  brass 
bushing,  Fig.  128.

Also  note  the  tw o   eccentrics  on  the 

transport  latch,  Fig.  128.  One  eccentric 
controls  the  position  of  the  release- 
blocking  lever,  the lever that prevents you 

from   pushing  down  the  release  slide  dur­

ing  the  cocking  stroke.  The  release- 
blocking  lever  sits  under  the  transport 

latch.

Check  the  adjustment  after  partially 

cocking  the  shutter.  W ith   the  transport 

latch  riding  against  the  smooth,  outer 

surface  of the  transport  cam,  the release- 
blocking  lever  should  be  over  the  lower 
end  of  the  release  slide.  The  release- 
blocking  lever  then  prevents  you  from 
depressing  the  release button.  By turning 

the eccentric.  Fig.  128,  you can reposition 

the  release-blocking  lever.  Turn  the  ec­
centric until the release slide appears  right 
in  the  center of  the  release-blocking  lever 
w ith  the  shutter  partially  cocked.

The  other  eccentric  on  the  transport

M AIN   WIND 

PUNCH  MARKS 

GEAR

Figure  127

ECCENTRIC  FOR 

ECCENTRIC  FOR

POWER-WINDER  SWITCH 

RELEASE  BLOCKING  LEVER

WIRE  TOUCHES 

POWER-WINDER 
BUSHING  HERE

WIND-LATCH

ECCENTRIC

Figure  128

Содержание XD-11

Страница 1: ...Minolta XD 11 Repair Guide Figure IB OVERRANGE LED SHUTTER SPEED SCALE UNDERRANGE LED DIAPHRAGM WINDOW Figure 3 Figure 4...

Страница 2: ...ong other innovations the XD 11 settled the debate over aperture preferred vs shutter speed preferred automation it gives you a choice between either mode To program the camera for automatic shutter s...

Страница 3: ...perture sizes A combination magnet permanent magnet plus electromagnet limits the movement of the diaphragm closing lever As the diaphragm closing lever starts to move the permanent magnet holds its a...

Страница 4: ...with its own batteries However you can connect a 3V DC power supply to the battery compartment Fig 8 Connect the positive power supply lead to the battery compartment terminal and connect the negativ...

Страница 5: ...st be closed before the comparator output connects to the base of T6 S1 sits at the bottom of the camera Fig 11 When you cock the shutter S1 closes to connect the comparator to T6 S1 opens after the e...

Страница 6: ...re may be a problem with the release switch or with the release circuit But if the transistor T6 is at fault you w on t have to go any fur ther You can make a final check on T6 by shorting between the...

Страница 7: ...g 16 away from the M1 core toward the front of the camera The M1 ar mature now opens switch S7 Conse quently you should measure around 1 3V at the white wire connection Fig 15 The technique for holdin...

Страница 8: ...manent magnet Fig 17 Dirt can prevent the core from magnetically hold ing the armature If cleaning doesn t do the job the per manent magnet may be defective Try pushing the armature of M2 away from th...

Страница 9: ...D IAPH RAG M CONTROL IC2 SHUTTER RELEASE LOCK DRIVER FOR LEDs IC1 D IAPHRAG M CONTROL PHOTOCELL AMPLIFIER SPEED CONTROL OUTPUT LIGHT LEVEL FILM SPEED Figure 18 Actual schematic Figure 19...

Страница 10: ...ting provides the in put voltage to one input of the com parator the combination of the film speed setting and the photocell output provides the voltage at the other input If input 1 in Fig 19 is less...

Страница 11: ...sassembly Remove the speed knob and note the loose release pin The release pin closes the switches for the metering and release functions You can completely remove the camera back by depressing the hi...

Страница 12: ...ring Then rotate the wind lever in a counterclockwise direction as you seat it over the wind shaft The upper coil of the wind lever return spring sometimes sneaks under the wind lever If that hap pens...

Страница 13: ...e the film speed dial Why With the film speed dial remov ed the film speed brush doesn t make firm contact with the resistor ring Fig 31 The camera then exhibits the symp toms of an open film speed re...

Страница 14: ...ask lever pulls the mask over the window for the shutter speed indication Remember the shutter speed setting has no meaning in the A mode The spring loaded scale to the front of the pentaprism provide...

Страница 15: ...memory capa citor can continue changing as long as the memory switch Fig 36 remains clos ed Fig 33 points out the memory switch in the camera Just before the mirror starts to rise the insulated lever...

Страница 16: ...ansistor charges the timing capacitor With a larger more positive base voltage the transistor con ducts harder it then charges the timing capacitor more quickly However if there s no voltage across th...

Страница 17: ...the shutter to deliver only its fastest speed Suspect a poor ground connection if you measure a voltage at the red electromagnet lead when you par tially depress the release button If you measure arou...

Страница 18: ...l hang open If the trigger switch fails to close or makes poor con tact you w on t be able to bring in your shutter speed adjustments especially the fast speeds Erratic shutter speeds may also result...

Страница 19: ...parator provides the switch for the closing curtain electromagnet M3 When the comparator output at pin 16 drops low current flows through M3 to hold open the shutter The voltage at pin 16 goes high to...

Страница 20: ...Figure 41...

Страница 21: ...board Finally take out the four front plate screws Notice the position of the one slotted screw the locating screw in the upper wind side corner You can now separate the front plate m irror cage assem...

Страница 22: ...escribe a special tool for adjusting the LED readout a dummy camera body which has a special cutout over the variable resistors But according to Minolta the dummy camera body isn t available You can t...

Страница 23: ......

Страница 24: ...round 0 6V despite changes in current So with two diodes in series the voltage at pin 7 should remain constant at approximately 1 2V The filter capacitor C1 helps maintain the constant reference volta...

Страница 25: ...Figure 52...

Страница 26: ...istor labeled R47 in Fig 52 The f 22 lens moves the brush to the third resistance path here the S12 brush connects pin 9 of IC2 directly to positive battery Fig 52 With the f 32 lens the brush moves o...

Страница 27: ...he overexposure LED to re main on You can use another voltage check to test the diaphragm resistor after removing the top cover Measure the volt age between ground and the AV contact Fig 54 you should...

Страница 28: ...of the LEDs will turn on W ith the front plate m irror cage assembly removed you have a good view of S7 Fig 60 Fig 60 shows the mirror cage in the charged position The M1 ar mature now sits in contact...

Страница 29: ......

Страница 30: ...have to stop down as far in bringing the pin 8 voltage to the pin 11 voltage At the X B and 0 settings the shutter speed brush moves to the ground land shown just below the RTV resistor in Fig 63 Pin...

Страница 31: ...ve for transistor 1 Fig 64 The timing capacitor then charges more quickly You can then check the shutter speed resistor RTV by measuring the voltage to pin 20 of IC1 in the M mode Again the voltage sh...

Страница 32: ...14 of IC1 ground and the negative lead of C3 Fig 55 The large resistor has no effect on the normal operation However it allows the timing capacitor to eventually charge and close the shutter You may...

Страница 33: ...ixed resistor R56 as shown in Fig 69 Depress the release button part way to measure the voltage You should get a reading of 180mv 0 180V 2mv If not make the adjust ment using Rx7 Turning the wiper of...

Страница 34: ...ond and the diaphragm to f 16 With the film speed dial set to ASA 100 expose the lens to a light level of EV 9 Now measure the voltage between the common S11 path Fig 66 and ground Record your voltage...

Страница 35: ...y find that the shutter occasionally jams the closing blade doesn t quite complete its release movement Then by pushing down the closing blade from the back you may be able to get the shutter to opera...

Страница 36: ...Figure 73 WASHERS Figure 75 Figure 77 Figure 74 Closing blade set Part 2005 0712 01 Figure 76 Opening blade set Part 2005 0713 01...

Страница 37: ...out the three shutter retaining screws Then lift the shutter far enough from the mirror ARM CLOSING BLADE Figure 79 First section o f opening blade in position Figure 80 cage to reach the wires which...

Страница 38: ...closing blade push the bulb lever out of engage ment with the armature from left to right in Fig 84 The spring loaded armature then moves away from the electromagnet and strikes the closing blade lat...

Страница 39: ...e the armature But another lever the mechanical speed latch holds the armature to provide the full aperture speed The mechanical speed latch sits just under the bulb lever Fig 86 When the opening blad...

Страница 40: ...reasing the spring tension by turning the spring hooking tab counterclockwise causes the timing cam to rotate faster The result A significant change in the fast speeds But don t use the spring hooking...

Страница 41: ...re Fig 89 It s now up to the electromagnet the bulb lever or the mechanical speed latch to hold the ar mature and prevent the closing blade from releasing Also the ridge on the timing cam drives the t...

Страница 42: ...h that you don t lift up the blade driving levers If you do the pins on the other sides of the blade driving levers will come out of the slots in the blade sets Then if the in dividual blades shift in...

Страница 43: ...circuit for adjusting the trig ger switch Just connect the timing cir cuit to the shutter s lead wires as shown Figure 99 in Fig 98 There s only one problem you disconnect the shutter leads to remove...

Страница 44: ...agnet In Fig 100 we ve provided a variable resistor adjust ment to establish the reference voltage at the noninverting input of the comparator Use the variable resistor to adjust the tim ing circuit f...

Страница 45: ...he metering switch should close when the release slide moves down 0 4mm REMOVING THE FLEX CIRCUIT Other than for replacement purposes there aren t too many reasons to remove the flex circuit The compl...

Страница 46: ...tially depressed It s also possible to check the individual LEDs without removing the flex circuit completely Fig 104 points out the hole that receives the ground screw Connect a jumper between the gr...

Страница 47: ...resulting in a shorter delay between the closing of the release switch and the opening of the memory switch The time delay assures that the dia phragm reaches the taking aperture before the memory sw...

Страница 48: ...mir ror cage Remember though that remov ing the combination magnets requires that you readjust their positions on reassembly You can now see the diaphragm control parts The mirror tensioning lever mo...

Страница 49: ...se the eccentric if the self timer fails to pull down the release slide far enough to release the shutter TIMING THE SPEED SELECTOR On reassembly it s possible to replace the speed selector 180 out of...

Страница 50: ...tension on the spring the scale would definitely break After you connect one end of the tung sten wire hold the other end as shown in Fig 115 Now let go of the spring loaded pulley and allow the sprin...

Страница 51: ...ut the two wind seat screws Fig 119 Then lift out the wind seat Watch for a loose endplay spacer on the top of the wind shaft Fig 120 not all cameras use the endplay spacer Also if you removed the win...

Страница 52: ...e sprocket gear at the bottom of the body casting Watch for a washer on top of the sprocket gear You can now remove the take up spool from the back of the body casting Fig 123 The take up spool has th...

Страница 53: ...roper position of the notch Seat the two plastic gears on the base plate Then insert the counter ac tuator into the hole in the back sensing lever Rotate the counter actuator to the position shown in...

Страница 54: ...counter gear Fig 125 If the counter actuator doesn t align with the tooth slot and instead comes against one of the gear teeth you ll see the counter dial shift in position as you close the camera bac...

Страница 55: ...lastic gears in the Seiko aren t nylon they re Delrin the toughest of plastics The Delrin parts never seem to break Although the Seiko holds up under most types of abuse there s one mis treatment it c...

Страница 56: ...brown and red magnet leads Fig 39 shorted 3 H IC defective Check the voltage at pin 10 Fig 51 You should get 3V when the shutter releases 4 IC1 defective Check the voltage at the brown electromagnet...

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