Sony PS-2700 Service Manual page 4

PS-2700
2-5, SHELL HEAD REMOVAL
Note:
The four lead wires for shell head difficults to pass
through the tonearm pipe. Thus, use the former lead
wires when replacing the shell head,
1. Unsolder the output leads from the tonearm on
the terminal board as shown in Fig. 2-5.
2. Remove the bottom plate and the turntable
platter.
3. Remove two shell-head-adjust-screws as shown
in Fig. 2-6.
4, Pull out the shell head connector about 3cm
ad A inches) slowly while pushing the four leads
into the tonearm pipe from the tonearm base
side, ;
5.-Unsolder the four leads and then replace the shell
head. Temporarily secure with two screws as
shown in Fig. 2-6.
6. Install the cartridge to the tonearm.
7, Fix two shell-head-adjust-screws after making
sure that the position of cartridge is as shown
in Fig. 2-7,
grounding
wire lead RED GRN BLU WHT
terminal board
to tonearm
Fig. 2-5
shell head connector four-pin connector
tip of screwdriver hole
washer
17,.5mm dia,
Fig, 2-6
RED WHT
cartridge
B
GRN ne surtace
of record
screw
right angle
Fig, 2-7
2-6. TONEARM REMOVAL
1, Remove the top cover, the shell head, the counter-
weight, the turntable platter, the bottom plate
and the case.
2. Unsolder the leads from the tonearm on the
terminal.
3. Pull out the grounding wire as shown in Fig, 2-8.
4. Loosen two hexagonal screws, then remove the
brake drum as shown in Fig. 2-8.
5. Remove three: hexagonal screws, then draw out
the tonearm base while turning it clockwise
about 2mm on the circumference as shown in
Fig. 2-9,
6. Remove the tonearm carefully,
brake drum
hexagonal screw 3 x 6
Fig. 2-8
hexagonal screw 3 x 6
tonearm base