Sony CMT-C5 / HCD-C5 Service Manual ▷ View online
21
HCD-C5
3-18. MD MECHANISM DECK (MDM-7B4M), MD DIGITAL BOARD
7
two screws
(+BVTT 3 x 5)
8
MD DIGITAL board
4
shield (MD2)
qf
MD mechanism deck
(MDM-7B4M)
1
four screws
(+BVTT 3 x 5)
9
shield (MD1)
2
two screws
(+BVTT 3 x 5)
5
wire (flat type)
(17 core) (CN703)
qa
four insulators
6
wire (flat type)
(27 core) (CN702)
q;
four screws, step
qs
screw
(+BTN 1.7 x 3)
qd
ground wire
3
ground
wire
Slant the shield (MD1), shield (MD2) and
the MD DIGITAL board in the direction of
the arrow and remove the two
the MD DIGITAL board in the direction of
the arrow and remove the two
2
screws (+BVTT 3 x 5).
3-19. HOLDER ASSY
1
tension spring (holder)
3
holder assy
2
hook
22
HCD-C5
3-21. LOADING MOTOR (M703), SPINDLE MOTOR (M701), SLED MOTOR (M702)
3-20. BD (MD) BOARD
M702
M701
M703
S102
1
Remove two solderings.
(sled)
2
Remove two solderings.
(spindle)
3
Remove two
solderings.
(loading)
(loading)
4
Remove three solderings.
5
two screws
(+BP TRI 2 x 6 CZN)
8
BD (MD) board
7
connector (CN104)
6
flexible board
(CN101)
7
spindle motor (M701)
5
loading motor (M703)
9
sled motor (M702)
1
lever (head)
3
torsion spring (spindle)
2
belt (loading)
4
two screws
(+PWH 1.7 x 3.5)
6
three tapping screws (M1.7)
8
two screws
(+PWH 1.7 x 3.5)
23
HCD-C5
3-22. OVER WRITE HEAD
1
screw (+P 1.7 x 6)
2
over write hrad
(HR901)
3
screw
(+BP TRI 2 x 6 CZN)
5
screw (+KTP 2 x 6)
1
screw
(+BP TRI 2 x 6 CZN)
8
main shaft
6
7
2
base (BU-D)
4
base (BU-A)
9
flexible board
q;
optical pick-up (for MD)
3-23. OP-SUB SECTION
24
HCD-C5
[Factory Preset Mode]
∗
This mode clears all data including preset data stored in the
RAM to initial conditions. Excute this mode when returning
the set to the customer.
RAM to initial conditions. Excute this mode when returning
the set to the customer.
Procedure:
1. Press the ?/1 button to turn the power on.
2. Press the
1. Press the ?/1 button to turn the power on.
2. Press the
FUNCTION
z button to set the CD function.
(except the TUNER function)
3. Press three buttons
VOL +
,
CD
Z and
MD
Z
simultaneously.
4. The message “COLD RESET” blinks and the present contents
are reset to the default values.
[Version and Destination Display Mode]
∗
The version or destination is displayed.
Procedure:
1. Press the ?/1 button to turn the power on.
2. To enter the test mode, press the three buttons
1. Press the ?/1 button to turn the power on.
2. To enter the test mode, press the three buttons
VOL +
, x
and
MD
Z simultaneously.
3. The model and destination are displayed.
4. Press the
4. Press the
REC/REC IT/NORMAL
and u buttons simul-
taneously.
5. The version is displayed as “STR/CD V . ”.
6. Press the
6. Press the
REC/REC IT/NORMAL
and u buttons simul-
taneously.
7. The version is displayed as “MD V . ”.
8. Press the
8. Press the
REC/REC IT/NORMAL
and u buttons simul-
taneously, then the mode returns to step 3.
9. To exit from this mode, press the ?/1 button to turn the
power off.
[FL Tube Test Mode]
∗
All fluorecent segments and LEDs are tested.
Procedure:
1. Press the ?/1 button to turn the power on.
2. To enter the test mode, press three buttons
1. Press the ?/1 button to turn the power on.
2. To enter the test mode, press three buttons
VOL +
, x and
./m
TUNING -
simultaneously.
3. All segments and LEDs are turned on.
4. Press the
4. Press the
REC/REC IT/NORMAL
and u buttons simul-
taneously.
5. All segments are turned off (All LEDs still lit).
6. Press the
6. Press the
REC/REC IT/NORMAL
and u buttons simul-
taneously.
7. Almost half segments are turned on. (PATTERN 1)
8. Press the
REC/REC IT/NORMAL
and u buttons simul-
taneously.
9. The segments which are turned on in step 7 are turned off,
then remaining segments are turned on. (PATTERN 2)
10. Press the
REC/REC IT/NORMAL
and u buttons simul-
taneously, the mode returms to step 3 and all segments are
turned on.
turned on.
11. To exit from this mode, press the ?/1 button to turn the
power off.
[Key Test Mode]
∗
Keyboard check.
Procedure:
1. Press the ?/1 button to turn the power on.
2. To enter the test mode, press three buttons
1. Press the ?/1 button to turn the power on.
2. To enter the test mode, press three buttons
VOL +
, x and
>/M
TUNING +
simultaneously.
3. In the key test mode, the fluorecent indicator displays
“KEY00”.
4. Each time a button is pressed, “KEY ” value increases.
However, once a button is pressed, it is no longer taken into
account.
account.
5. To exit from this mode, press three buttons simultaneously as
step 2 , or disconnect the power cord.
[Amp Test Mode]
Procedure:
1. Press the ?/1 button to turn the power on.
2. Press three buttons
1. Press the ?/1 button to turn the power on.
2. Press three buttons
VOL -
,
CD
Z and
MD
Z simulta-
neously.
3. Press two buttons
REC/REC IT/NORMAL
and x simulta-
neously.
4. The message “7 [TESTMIN]” is displayed for a few seconds.
5. Press two buttons
5. Press two buttons
REC/REC IT/NORMAL
and x simulta-
neously again.
6. Each time two buttons are depressed, the display changes as
“8 [TESTMID]” , “9 [TESTMAX]”, and “10 [TESTSUR]” .
7. Press the
VOL +
button, the display changes “VOLUME 21”
to “VOLUME MAX”.
8. Press the
VOL -
button, the display changes “VOLUME 21”
to “VOLUME MIN”.
9. To exit from this mode, press the ?/1 button to turn the
power off and cold reset is executed.
[CD Test Mode]
∗
The CD system versions are displayed.
Procedure:
1. Press the ?/1 button to turn the power on.
2. Press the
1. Press the ?/1 button to turn the power on.
2. Press the
FUNCTION
z button to set the CD function.
3. Press three buttons of
VOL +
, x and
CD SYNC HIGH
simultaneusly.
4. The message “dut CD VER” is displayed.
5. Press the
5. Press the
CD
Z button and the version “CD . ” is dis-
played.
6. Press the >/M
TUNING +
button and “CDSYS ”
is displayed.
7. Each time the >/M
TUNING +
button is depressed ,
the display changes as “CDMA S”, “CDBD O”, “CDCD M”.
8. By depressing the ./m
TUNING -
button the versions
are displayed in reverse.
9. To exit this mode, press the ?/1 button to turn the power off.
SECTION 4
TEST MODE
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