Sony HCD-M70 Service Manual ▷ View online
4
HCD-M70
SECTION 1
SERVICING NOTES
The laser diode in the optical pick-up block may suffer electro-
static break-down because of the potential difference generated
by the charged electrostatic load, etc. on clothing and the human
body.
During repair, pay attention to electrostatic break-down and also
use the procedure in the printed matter which is included in the
repair parts.
The flexible board is easily damaged and should be handled with
care.
static break-down because of the potential difference generated
by the charged electrostatic load, etc. on clothing and the human
body.
During repair, pay attention to electrostatic break-down and also
use the procedure in the printed matter which is included in the
repair parts.
The flexible board is easily damaged and should be handled with
care.
NOTES ON LASER DIODE EMISSION CHECK
The laser beam on this model is concentrated so as to be focused
on the disc reflective surface by the objective lens in the optical
pick-up block. Therefore, when checking the laser diode emis-
sion, observe from more than 30 cm away from the objective lens.
on the disc reflective surface by the objective lens in the optical
pick-up block. Therefore, when checking the laser diode emis-
sion, observe from more than 30 cm away from the objective lens.
NOTES ON HANDLING THE OPTICAL PICK-UP
BLOCK OR BASE UNIT
BLOCK OR BASE UNIT
MODEL IDENTIFICATION
– Rear Panel –
– Rear Panel –
SERVICE POSITION
In checking the CD block, prepare jig (extension cable J-2501-
011-B: 1.25 mm Pitch, 19 cores, Length 300 mm).
011-B: 1.25 mm Pitch, 19 cores, Length 300 mm).
Part No.
Model Name
Part No.
AEP and UK models
4-238-716-0
[]
US and Canadian models
4-238-888-0
[]
Singapore model
4-238-889-0
[]
Mexican model
4-239-812-0
[]
Australian model
4-240-890-0
[]
Korean model
4-240-891-0
[]
Thai model
4-240-892-0
[]
Connect jig (extension cable J-2501-011-B)
to the control board (CN805) and CD board (CN101).
to the control board (CN805) and CD board (CN101).
control board (CN805)
CD board (CN101)
Any box to put.
In checking the tape deck section, prepare jig (extension cable J-
2501-167-A: 1.25 mm Pitch, 17 cores, Length 300 mm).
2501-167-A: 1.25 mm Pitch, 17 cores, Length 300 mm).
TC board (CN301)
main board (CN301)
Connect jig (extension cable J-2501-167-A)
to the main board (CN301) and TC board (CN301).
to the main board (CN301) and TC board (CN301).
5
HCD-M70
5
GB
Remote Control
CD REPEAT qk (8)
CD
CD
N ws (8, 9)
DIR MODE ql (12–14)
DISPLAY 2 (11, 16)
DSG 1 (15)
ENTER qd (7, 10, 14, 15, 17)
FM MODE 9 (11)
FUNCTION qj (8–14, 18)
MEMORY qh (10)
DISPLAY 2 (11, 16)
DSG 1 (15)
ENTER qd (7, 10, 14, 15, 17)
FM MODE 9 (11)
FUNCTION qj (8–14, 18)
MEMORY qh (10)
SLEEP qf (16)
TAPE
TAPE
nN w; (12–14)
TIMER SELECT qs (15, 17)
TIMER SET qg (7, 14, 17)
TUNER/BAND wa (9–11)
TUNING MODE/PLAY MODE
TIMER SET qg (7, 14, 17)
TUNER/BAND wa (9–11)
TUNING MODE/PLAY MODE
q; (8–11, 14)
VOL +/– qa (17)
BUTTON DESCRIPTIONS
X 4 (8, 12, 14)
x 5 (8, 9, 12–14)
./> 6 (7–10, 14, 15, 17)
m/M 7 (8–12)
@/1 (power) 3 (7, 15, 17)
z REC 8 (13)
ALPHABETICAL ORDER
A – M
S – V
1
2
3
8
5
6
4
9
0
qa
qs
qd
qj
qk
qh
qg
qf
ql
w;
wa
ws
7
4
GB
How to use this page
Use this page to find the location of buttons and other
parts of the system that are mentioned in the text.
parts of the system that are mentioned in the text.
Illustration number
r
PLAY MODE qg (9, 13, 14)
R
R
Name of button/part
Reference page
List of Button Locations and Reference Pages
Main unit
ALPHABETICAL ORDER
A – F
CD disc tray 9 (8)
CD SYNCHRO qa (13, 14)
CD SYNCHRO indicator w; (14)
CD
CD SYNCHRO qa (13, 14)
CD SYNCHRO indicator w; (14)
CD
N 7 (8, 9)
CD
X 7 (8)
DIRECTION q; (12–14)
Display window 2
DSG qk (15, 18)
FUNCTION ql (8–14, 18)
Display window 2
DSG qk (15, 18)
FUNCTION ql (8–14, 18)
PHONES jack qf
PLAY MODE/TUNING MODE
PLAY MODE/TUNING MODE
qd (8–11, 14)
Remote sensor 4
REPEAT/FM MODE qs (8, 11)
TAPE
REPEAT/FM MODE qs (8, 11)
TAPE
nN qj (12–14)
TAPE
X qj (12–14)
TUNER AM qg (9–11)
TUNER FM qg (9–11)
TUNING +/– 3 (9–11)
VOLUME +/– 6 (17)
TUNER FM qg (9–11)
TUNING +/– 3 (9–11)
VOLUME +/– 6 (17)
P – V
BUTTON DESCRIPTIONS
@/1 (power) 1 (7, 10, 15, 17)
m/M 3 (8, 12)
l/L 3 (8, 9, 14)
x 5 (8, 12, 13)
Z CD 8 (8)
z REC qh (13)
Z
x
nN
N
?/1
lm
ML
z
X
X
1
3
5
ql
6
7
4
8
9
2
0
qa
qs
qd
qf
qh
qg
qk
qj
w;
SECTION 2
GENERAL
This section is extracted from
instruction manual.
instruction manual.
Setting the clock
1
Turn on the system.
2
Press TIMER SET on the remote.
3
Press
.
/
>
on the remote
repeatedly to set the hour.
4
Press ENTER on the remote.
The minute indication flashes.
5
Press
.
/
>
on the remote
repeatedly to set the minute.
6
Press ENTER on the remote.
The clock will begin operating.
To adjust the clock
1
Press TIMER SET on the remote.
2
Press
. or > on the remote to select
“SET CLOCK”, then press ENTER on the
remote.
remote.
3
Do the same procedures as step 3 to 6
above.
above.
HCD-M70
6
SET
3-2. PANEL (SIDE) (L),
PANEL (SIDE) (R)
(page 7)
(page 7)
3-3. TOP PANEL SECTION
(page 7)
3-4. MECHANICAL DECK (TAPE)
(page 8)
3-5. FRONT PANEL SECTION
(page 8)
3-6. BACK PANEL ASSY
(page 9)
3-7. MAIN BOARD
(page 9)
3-8. CD MECHANISM DECK
(CDM55F-K6BD41A)
(page 10)
(page 10)
3-9. BASE UNIT (BU-K6BD41A)
(page 11)
3-10. LOADING BOARD
(page 11)
3-11. CAM (CDM55)
(page 12)
• This set can be disassembled in the order shown below.
3-1.
DISASSEMBLY FLOW
SECTION 3
DISASSEMBLY
HCD-M70
7
Note:
Follow the disassembly procedure in the numerical order given.
3-2.
PANEL (SIDE) (L), PANEL (SIDE) (R)
3-3.
TOP PANEL SECTION
1
four screws
(BTP3
(BTP3
×
10)
2
3
panel (side) (L)
1
screw
(BTP3
(BTP3
×
10)
4
screw
(BTP3
(BTP3
×
10)
4
four screws
(BTP3
(BTP3
×
10)
5
6
panel (side) (R)
3
wire (flat type) (17 core)
(CN301)
(CN301)
4
top panel section
1
screw
(BTP3
(BTP3
×
10)
2
