Service manual

Fig. 4
Power supply unit
Finger guard
Fan support metal
<Top View>
[120]: Bind Head Tapping Screw-B 3.0X8 MFZN2BL (EP600190)
SUB 4/4
[120] x4
SUB 2/4
Fan guide
Fig. 3
[A]: Bind Head Screw A3.0X6 MFZN2BL (VP156600)
[350]: Bind Head Screw A3.0X6 MFZN2BL (VP156600)
<Left Side View>
(DB-SREV1)
CNV
[A] [A][350] [350]
CNV
DC fan motor
Fan
Fan guard
SREV1
12
4. PCM Circuit Board
(Time required: about 15 minutes)
4-1 Remove the top cover. (See procedure 1.)
4-2 Remove the DB-SREV1 CNV circuit board, if it is being
installed. (See procedure 2.)
4-3 Remove the CNV circuit board. (See procedure 3.)
4-4 Remove the two (2) screws marked [460]. The PCM
circuit board can then be removed. (Fig. 2)
5. Power Transformer, SUB 1/4 Circuit Board
(Time required: about 8 minutes each)
5-1 Remove the top cover. (See procedure 1.)
5-2 Power Transformer
Remove the four (4) screws marked [150]. The power
transformer can then be removed. (Fig. 2)
5-3 SUB 1/4 Circuit Board
Remove the two (2) screws marked [125]. The SUB 1/4
circuit board can then be removed. (Fig. 2)
6. SUB 2/4 Circuit Board
(Time required: about 15 minutes)
6-1 Remove the top cover. (See procedure 1.)
6-2 Remove the power transformer. (See procedure 5-2.)
6-3 Remove the SUB 1/4 circuit board (See procedure 5-3.)
6-4 Remove the four (4) screws marked [120]. The SUB 2/4
circuit board can then be removed. (Fig. 4)