Service; Lamp (Lp1, Lp2) Replacement; Lamp Harness (B510, 511) Replacement - Pentax EPK-p Service Manual

6. Service

Note: 1) Refer to Photo-1, 2, Fig-1 for the location of the parts to be replaced.
2) If any Numbers shown in the photo, they correspond to the numbers of the items listed below.

6.1 Lamp (LP1, LP2) replacement

A way of replacing the lamp bulb is described below.
Caution: Just after turning off the lamp, it may be hot. Be careful not to get hest injury.
1) Select the lamp that you want to replace with the lamp selector while the power of the unit is ON.
2) Turn of the power of the unit and remove the lamp house lid by unscrewing the screw located on the
upper center of the lid.
3) Pull the lamp holder tab while lifting the ratchet until the lamp drops off.
4) Remove the worn out lamp from the lamp socket and attach a new lamp to the socket.
Caution: 1) Do not contaminate the lamp bulb with finger prints or something. It may cause a lamp trouble.
2) Attach the lamp to the socket so that the protrusion on the lamp reflector edge faces inside.
5) Put the lamp to the lamp holder so that the lamp reflector settles the hole in the holder, especially the
protrusion meets the groove.
6) Push the lamp holder tab until it latches.
7) Close the lamp house with the lid by screwing the screw.
Caution: A bar on the back of the lamp house lid is available, which turns off the interlock switch for the lamp
ignition. Thus securely close the lid.
Referred by Photo-4

6.2 Lamp harness (B510, 511) replacement

The order of connecting the lamp harnesses to
the terminal of the power supply unit must be kept
as shown in Photo-4.
1) Connect Lamp harness No.1 (B510/white) so
the number attached to the wires "1" and "3"
correspond to the terminal position "L1+" and
"L1-" as shown in Photo-4.
2) Connect Lamp harness No.2 (B511/black) so
the number attached to the wires "2" and "4"
correspond to the terminal position "L2+" and
"L2-" as shown in Photo-4.
3) Lift ratchet
3) Pull tab while
Lamp socket
Photo-4 Lamp harness
- 7 -
5) Protrusion faces
groove
Lamp reflector
5) Put lamp so reflector
lifting ratchet.
For better referring inside, without cover
Photo-3 Lamp replacement
Lamp harness
No.1
L2-
Hole in lamp holder
6) Push lamp
holder tab
settles hole in holder
Lamp harness No.2
Terminal
L1-
L2+
L1+
Wire number
1, 2, 3, 4