Tape Path - Sony AV-3420CE Service Manual

SECTION 9
TAPE TRANSPORT DESCRIPTION
9-1. TAPE PATH
The tape path is shown in Fig. 9-1.
(F) input guide
(O) take-up reel
(A} supply reel
(G) guide blet
(S) drive shaft
{Q) sub-belt
(P) de motor with FG
(E) erase head
{B) input roller
(D) input tapered guide
(C) sub-roller (N) pinch roller
(M) capstan
(L) exit tapered guide
(K} audio/CTL head
(J) exit guide
(V) capstan pulley
(X) sub-motor
(U) capstan belt
(T) drum pulley
Fig. 9-1
The tape, placed on the Supply Reel Table (A),
takes, a path as shown in Fig. 9-1 and is wound onto
the Tape-Up Reel Table (O).
The tape on the Supply Reei Table (A), is
first fed to the Input Roller (B) and Sub-roller (C)
where the approximate height of tape is determined.
- The tape is then slanted by about 3 degrees by
Input Tapered Guide (D). The tape then contacts
the full-track erase head. The Input Guide (F)
determines the tape height precisely. The tape runs
around the circumference of the head drum 180
Tape path
degrees along the Guide Belt (G). The Exit Guide
(J) also determines
the tape height.
The audio
signal is recorded and played back by the upper
core of the audio/CTL head (K). The control track
signal is recorded and played back by the lower core.
The tape
is again slanted
by the Exit
Tapered
Guide
(L), and squeezed by the Capstan (M) and
the Pinch Roller (N) before it is wound onto the
Take-up Reel Table (O).
9-1
F a ee I ER RS OT PAS PO, Se ee