Read Sony CMT-HP8V / HCD-HP8V Service Manual online
24
HCD-HP8V
SECTION 6
MECHANICAL ADJUSTMENTS
•
TAPE MECHANISM DECK SECTION
Precaution
1. Clean the following parts with a denatured alcohol-moistened
swab:
record/playback heads
pinch rollers
erase head
rubber belts
capstan
idlers
2. Demagnetize the record/playback head with a head
demagnetizer.
3. Do not use a magnetized screwdriver for the adjustments.
4. After the adjustments, apply suitable locking compound to the
4. After the adjustments, apply suitable locking compound to the
parts adjusted.
5. The adjustments should be performed with the rated power
supply voltage unless otherwise noted.
Torque Measurement
2.94 – 7.84 mN • m
(30 to 79 g • cm)
(0.42 – 1.11 oz • inch)
0.15 – 0.6 mN • m
2 to 6 g • cm
(0.03 – 0.08 oz • inch)
2.94 – 7.84 mN • m
(30 to 79 g • cm)
(0.42 – 1.11 oz • inch)
0.15 – 0.6 mN • m
2 to 6 g • cm
(0.03 – 0.08 oz • inch)
6.86 – 17.64 mN • m
(70 to 179 g • cm)
(0.98 – 2.49 oz • inch)
9.8 mN • m more
(100 • cm or more)
(1.4 oz • inch or more)
9.8 mN • m more
(100 • cm or more)
(1.4 oz • inch or more)
Mode
Torque meter
CQ-102C
CQ-102C
CQ-102RC
CQ-102RC
CQ-201B
CQ-403A
CQ-403R
Meter reading
FWD
FWD
back tension
back tension
REV
REV
back tension
back tension
FF/REV
FWD tension
REV tension
[AMP Test Mode]
Procedure:
1
1
Press the ?/1 button to turn the set on.
2.
To enter the test mode, press the three buttons x ,
PRESET EQ and DISC 4 simultaneously.
PRESET EQ and DISC 4 simultaneously.
3.
The message “AMP TEST IN” is displayed.
4.
Press the x and PRESET EQ buttons simultaneously. The
VACS status and IC parameters are displayed. Example : “D:
S: +4. 0. +2”
VACS status and IC parameters are displayed. Example : “D:
S: +4. 0. +2”
5.
DBFB ON/OFF Function : Press the GROOVE button, “DBFB
ON” or “DBFB OFF” is displayed.
ON” or “DBFB OFF” is displayed.
6.
SURROUND ON/OFF Function : Press the PRESET EQ
button, “SURROUND ON” or “SURROUND OFF” is
displayed.
button, “SURROUND ON” or “SURROUND OFF” is
displayed.
7.
To exit from this mode, press three buttons x , PRESET EQ
and DISC 4 simultaneously.
and DISC 4 simultaneously.
Note: Perform the Cold Reset to initialize the equalizer parameters.
[CD Service Mode]
* This mode can run the CD sled motor freely. Use this mode, for
instance, when cleaning the pickup.
Procedure:
1.
1.
Press ?/1 button to turn the set on.
2.
Set the function to CD.
3.
Press three buttons DISPLAY , x and DISC 5
simultaneously.
simultaneously.
4.
The MPEG AV TEST mode is selected.
5.
When the DIMMER buttons is depressed, the CD service
mode is activated.
mode is activated.
6.
Press > button to move the pickup to outside track, or
press . button to inside track.
press . button to inside track.
7.
To exit from this mode, perform as follows:
1) Move the pickup to the most inside track.
2) Perform the Cold Reset.
1) Move the pickup to the most inside track.
2) Perform the Cold Reset.
Note: Do not run the sled motor excessively, otherwise the gear can
be chipped.
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