Sharp 13VT-N100 Service Manual page 34

13VT-N100
13VT-N150
13VT-CN10
REPLACEMENT OF THE CAPSTAN D.D.
(DIRECT DRIVE) MOTOR
• Remove the mechanism from the main PWB (refer to
Page10 "DISASSEMBLY AND REASSEMBLY" Re-
move the cassette housing Assembly.
• Removal (Follow the order of indicated numbers.)
1. Remove the reel belt 1.
2
Capstan D.D.
motor
Figure 1-37.
2. Remove the three screws 2.
• Reassembly
1. Taking care so that the capstan shaft does not contact
the mechanism chassis, set its position on the mecha-
nism chassis, and then install with the three screws.
2. Install the reel belt.
Notes:
1. After installing the capstan D.D. motor, be sure to
rotate the capstan D.D. motor and check the move-
ment.
2. Set the tape, and check for the tape crease near the
reverse guide in the playback mode. Adjust the A/C
head and azimuth as stated in Page 32 item 2. If
crease is found, adjust as stated in Page 31 "HEIGHT
ADJUSTMENT OF REVERSE GUIDE".
REPLACEMENT OF DRUM D.D. MOTOR
1. Set the eject mode.
2. Withdraw the main power plug from the socket.
• Removal (Perform in numerical order.)
1. Disconnect the FFC cable 1.
2. Unscrew the D.D. stator assembly fixing screws 2.
3. Take out the D.D. stator assembly 3.
4. Unscrew the D.D. rotor assembly fixing screws 4.
5. Take out the D.D. rotor assembly 5.
Notes:
1. In removing the D.D. stator assembly, part of the drum
2. Install, so that the D.D. rotor ass'y and upper drum
3. Be careful not to damage the upper drum or the video
Capstan D.D. motor
control PWB
4. Protect the hole elements from shock due to contact
5. After installation adjust the playback switching point
1 Reel belt
34
earth spring pops out of the pre-load collar.
Be careful not to lose it.
ass'y mounting direction check holes align.
(Align the upper drum dent with the rotor hole.)
head.
with D.D. stator or D.D. rotor ass'y.
for adjustment of servo circuit.
2
4
5
Figure 1-38.
D.D. stator ass'y
1
3
FFC
4
D.D. rotor ass'y
Upper drum