T70 Repair

REPAIR GUIDE

1-70

Table @_Contents

• 1 . Repa1r Instructions
• 2 Parts Catalog

Table Caption: This is a simple table with two columns: the first column is a Roman numeral, and the second column contains text related to assembly.

I. ASSEMBLY & DISASSEMBLY

I. ASSEMBLY & DISASSEMBLY

I-1 Covers

Disassembly Notes

• 1 Bottom Cover (4 ) : Pushthe_filn_rewind button in the marked direction before removing the bottom plate This is necessary to prevent deform of the spring which would cause the button to not operate smoothly . ing
• 2 . Front Cover ( 7) : Set the shutter speed shift lock lever to 1 to prevent bending the switch contacts Loosen the two screws in the right end cover ( 4 ) Pinch the front cover at the four corners as shown and lift off
• 3 Cover To remove the top cover completely , unsolder the seven leads shown below Top

Assembly Notes

• 1 After resolder shielded leads be sure to recover with insulating tape
• 2 Don t pinch wires when reinstalling the covers
• 3 . Screw (5 ) is shorter than the other cover screws If a longer screw used here it will scratch the pentaprism
• 4 When reinstalling the bottom cover , push the film rewind button as explained above.

I. ASSEMBLY & DISASSEMBLY

• I. ASSEMBLY & DISASSEMBLY

2. I-1. Cover Parts Top

Disassembly Notes

• 1 Shutter Button Seat (4 ) , Beeper (5) , and Swift Switch ( 6) are all bonded to the cover with diabond top

Assembly Notes

1 The maximun height Of the shutter button above its seat should be 0 . 3 + 0 . 3mm when the button is all the way up .

2 . Insure that the index Of the selector lever (2)-6 aligns with the different selected indices on the cover top

I. ASSEMBLY & DISASSEMBLY

9 ;x2

I. ASSEMBLY & DISASSEMBLY

Main Flex Removal

Disassembly Notes

1. To remove the LCD panel (5 ) the junper wires (B) and main flex leads (A) have to be unslodered and three screws (4 ) removed Caution: 1 One of the thru-hole pins at (A) has an enlarged head Use solder wick and be careful not to tear the when removing the flex
2. 2 Don t use force when unsoldering the (B) section
3. 2 . Main Flex Removal
4. 2 .1 . SPC stopper (12)-1 is bonded to the SPC Remove it with the flex
5. 2 . 3 . Remove the 12 lead wires from the main flex (12) . See page 7 for positions
6. 2 . 2 . Remove solder from the thru-hole pins in (12)-2 with solder wick See page 8 for positions
7. 2 . 4 . Unsolder the 5 solder points on the shutter flex.
8. 2 5 Unsolder the LED jumper leads (C)

Adjustment Notes

1. Don t exert pressure on the flex after the thru-hole pins are soldered. Ihis could break the underside pattern
2. 2 Don 't use excess solder This could cause shorts between the LCD panel and ground
3. 3 . When installing the SPC stopper , engage the elongated hole first.
4. 4 . When installing the LCD (5)-1 and soldering at release them un til the solder is thoroughly set, it may splatter all over
5. 5 Install the remote jack (19 ) and its holder (18) as shown
6. 6 Back Cover Switch ( 7)
7. 6 . 2 Push the back cover switch ( 7 ) in the direction shown and fix it in place.
8. 6 1. With the back cover open , hold the opening hook down and push the lock lever in the marked direction s0 latch they

I. ASSEMBLY & DISASSEMBLY

I-3 . Main Flex Removal

I. ASSEMBLY & DISASSEMBLY 1-3 . Main Flex Removal Thru-hole Connections:

• A:
• B: SW 4 -M (Enlarged head )
• C: SW 4 -1
• D: SW1O GND
• E: SW18 GND
• F: SW 18
• G: Data ( +)
• H:
• I: Motor (=)
• J: VBAT (+) (Enlarged Head )
• K: VBAT (=) (Enlarged Head )
• To LCD Board:
• 1: SW 3 (Enlarged Head )
• 2 : SW 1
• 3 : GND
• 4 : Sw 2

Apply insulating tape over the area shown

Enlarged Head

I. ASSEMBLY & DISASSEMBLY

LCD Unit

• I. ASSEMBLY & DISASSEMBLY

2. LCD Unit

Disassembly Notes

• 1 Don t scratch the surface of the LCD (5) . To clean lightly with Fronsolve AE it, wipe
• 2 Switch holders (17)-1 and (17)-4 are welded together and cannot be separated Take care not to lose (17)-2 and 3 when screws (16) are removed
• 3 . The ends of jumper lead (19 ) break easily. Take care not to bend them too much .

Adjustment Notes

1. Be sure the elastic connectors (6 ) are clean before installing them
2. 2 . When installing (17)-2 and make sure the convex side Of 17-3 is next to (17)-2. 3 ,
3. 3 . After assembling and installing the main switch parts (8) through (17) , check that it makes the proper mutted clicking sound (peko-peko in Japanese)

1-5 Front Panel, Pentaprism

Disassembly Notes

• 1 Remove Holder (1 ) (squeeze in , lift out) and straighten the LED jumpers to prevent catching when the front panel is removed
• 2 If SPC Holder (A) is removed , an extensive alignment procedure is required Remove it only if necessary _
• 3 . Rubber dust shields are used in the area of the pentaprism ( 7)-4 and the LED ( 7)-8 Remove them before removing the main part

Adjustment Notes

• 1 Install the front panel (5 ) into the body (15 ) with the shutter open and the mirror uP .
• 2 Reinstall all rubber dust seals in the proper position
• If SPC Holder (A) was removed from the front panel , perform the SPC position adjustment. ing
• 4 , Install the focus screen (7)-11 with the two notches up and toward the LED ing

Lubrication and Spring Anchor Position

1-6 . Front Panel Parts

I. ASSEMBLY & DISASSEMBLY

Front Panel Parts

1 AE Unit Adjustment

2 . AE Eccentric Adjustment Gap

3 . Set Position Adjustment

Attach a tool standard lens and read the AE set position; adjust by turning the eccentric (Norm: 0 . 4 + 0 . 2F )

• 0 One or two steps of overcharge is sufficient for the front panel by itself
• O If a tool standard lens is not available install an ordinary standard lens (to place a load on the aperture signal charge lever) and adjust to obtain seven turns plus six teeth, +1 tooth

I. ASSEMBLY & DISASSEMBLY

I-6 . Front Panel Parts

• 4 . AE Start Position Adjustment
• Attach standard lens
• 4 . 2 With the front panel set for automatic exposure loosen the screw indicated in