Sony HDW-F500 Maintenance Manual page 144

4-3. Maintenance Menu
4-3-2. SERVO SYSTEM Check
[F2] (REEL SHIFT) Key :
Performs checking to the operation of reel shift motor and
to the function of reel position sensors.
(1) Press [F2] key from ALT+SERVO CHECK menu to
enter to REEL SHIFT MOTOR menu.
(2) Press and keys. Check that the reel shift motor
shifts from S position to L position and back to S
position from L position.
Also check that the indication on the portion marked
with (*1) of the display changes as illustrated below:
" S-POSITION "
"..........."
and keys
" L-POSITION "
If the reel shift motor does not rotate, check the following:
• Check the reel shift motor and the motor
driver circuit on DR-307 board.
If ".........." persists to appear even if the reel shift
motor is in L position or in S position, check the following:
• Check L position sensor or S position sensor located
on PTC-71 board.
L position sensor
(on PTC-71 board)
4-28
and keys
S Position sensor
(on PTC-71 board)
CH.COND
D R U M
M O T O R
SE RVO CHEC K
R E E L
S H I F T
RE LL S HIFT MOT OR
P USH THE UP/DO WN C URSO R BU T TON
P I N C H
R O L L E R
S -POSI TION
S R E E L
( * 1)
B R A K E
T R E E L C L E A N M T R & F G
B R A K E R O L L E R C H E C K
(S reel shift motor is in S position.)
Reel shift motor
A LT+S VO C HK
T CR 00 :00: 00:0 0
E X I T
HDW-F500E MMP1