DOWNLOAD Sony CMT-DC500MD / HCD-J300 Service Manual ↓ Size: 17.2 MB | Pages: 93 in PDF or view online for FREE

Model
CMT-DC500MD HCD-J300
Pages
93
Size
17.2 MB
Type
PDF
Document
Service Manual
Brand
Device
Audio
File
cmt-dc500md-hcd-j300.pdf
Date

Sony CMT-DC500MD / HCD-J300 Service Manual ▷ View online

8
HCD-J300
JIG FOR CHECKING BD (MD) BOARD WAVEFORM
The special jig (J-2501-196-A) is useful for checking the waveform of the BD (MD) board. The names of terminals and the checking items
to be performed are shown as follows.
GND : Ground
I+3V : For measuring IOP (Check the deterioration of the optical pick-up laser)
IOP
: For measuring IOP (Check the deterioration of the optical pick-up laser)
TE
: TRK error signal (Traverse adjustment)
VC
: Reference level for checking the signal
RF
: RF signal (Check jitter)
FE
: Focus error signal
I+3V
CN105
IOP
TE
VC
GND
FE
RF
I+3V
Iop
GND
TE
FE
VC
RF
I+3V
IOP
GND
TE
FE
VC
RF
1
7
for
MDM-7B
9
HCD-J300
SECTION  2
GENERAL
BAND wj (36, 37)
CD Z qh (10, 11)
CD . > ql (11, 12)
CD m M ql (11)
CD x w; (11, 12, 19, 40)
CD u ws (10–12)
ENTER/START 7 (19, 20, 40,
41)
FUNCTION 9 (10, 12, 15, 16,
21–24, 39, 41, 45)
MD Z qf (15, 16, 18, 26)
MD . > qk (15–17, 52)
MD m M qk (15)
MD x wd (15, 17, 19–22, 40, 41)
MD u wf (15–17, 21)
PHONES jack wa
PLAY MODE/DIRECTION 3
(10, 12, 13, 15–17, 26, 34, 39–
41)
REC MODE 8 (22)
Remote sensor qd
REPEAT 4 (11, 15, 36)
STEREO/MONO 4 (37)
SYNCHRO REC 6 (19, 20, 40)
TAPE m M qs (39)
TAPE X qj (39, 41)
TAPE x wg (20, 39–41, 52)
TAPE Y wh (39–41)
TUNING MODE 3 (36, 37)
TUNING +/– 2 (36, 37)
VOLUME qg
1
wj
wh
wg
wf
wd
ws
2 3
7
8
9
0
qa
qs
qd
qf
qg
qh
qj
qk
ql
w;
wa
4 5
6
BUTTON DESCRIPTIONS
@/1 (power) 1 (7, 18, 26, 37, 43,
45, 52)
z MD qa (21, 24, 25, 52)
Z PUSH 5 (39)
z TAPE 0 (41)
This section is extracted
from instruction manual.
10
HCD-J300
BASS/TRE 5 (42)
CD qj (10, 12, 13)
CLEAR 8 (12, 14, 16, 17, 27,
38)
CLOCK/TIMER SELECT 2
(44, 45)
CLOCK/TIMER SET 4 (9, 43,
44)
CURSOR T/t 9 (9, 14, 27)
DISPLAY wa (9, 12, 13, 17, 21,
38)
DSG qf (42)
ENTER/YES 6 (9, 12, 14, 16,
21–36, 38, 43–45)
FUNCTION qg (10, 12, 15, 16,
21–24, 39, 41, 45)
MD qk (15, 16, 30–32, 34)
MENU/NO wf (14, 22–36)
NAME EDIT/SELECT wd (13,
14, 26, 27, 38)
Number buttons 7 (11–16, 17,
27, 37)
PLAY MODE wh (10, 12, 13, 15–
17, 26, 34)
REPEAT wg (11, 15)
SCROLL ws (14, 17, 28)
SLEEP 1 (42)
TAPE qh
TUNER BAND ql (36, 37)
VOLUME +/– qd
qh
qk
qg
qj
ql
w;
wa
ws
wh
wg
wf
wd
8
5
6
4
9
0
qa
qs
qd
qf
7
1 2 3
BUTTON DESCRIPTIONS
@/1 (power) 3 (7, 18, 26, 37, 43,
45)
m M 9 (11, 15, 30, 32)
. > 0 (9, 11–17, 22–25,
27–36, 42–45)
N qa (10, 12, 15, 17, 25)
x qs (11, 12, 15, 17, 19, 20, 25)
X w; (11, 15)
Setting the time
1
Turn on the system.
2
Press CLOCK/TIMER SET on the
remote.
If you are setting the clock for the first time,
go to step 5.
3
Press 
.
 or 
>
 on the remote
repeatedly until “CLOCK SET” appears
in the display.
4
Press ENTER/YES on the remote.
The hour indication flashes.
5
Press 
.
 or 
>
 on the remote
repeatedly to set the hour.
6
Press ENTER/YES or CURSOR
 on
the remote.
The minute indication flashes.
7
Press 
.
 or 
>
 on the remote
repeatedly to set the minute.
8
Press ENTER/YES on the remote.
The clock will begin operating.
To reset the system clock
Start over from step 1.
11
HCD-J300
• The equipment can be removed using the following procedure.
SECTION  3
DISASSEMBLY
SET
TOP PANEL SECTION
(Page 12)
BACK PANEL SECTION
(INCLUDING THE OPTICAL BOARD, 
OPTICAL RETAINER BOARD)
(Page 20)
MAIN BOARD, POWER BOARD,
POWER TRANSFORMER
(Page 20)
OPTICAL PICK-UP (KSM-213DHAP)
(Page 19)
FRONT PANEL SECTION
(Page 13)
HOLDER SECTION
(Page 15)
OP SUB SECTION
(Page 16)
TC BLOCK SECTION, TC BOARD,
TAPE MECHANISM DECK
(Page 12)
CONTROL BOARD, LED BOARD,
HEAD PHONE BOARD
(Page 17)
LOADING MOTOR ASSEMBLY,
SPINDLE MOTOR ASSEMBLY,
SLED MOTOR ASSEMBLY
(Page 17)
MD SECTION
(Page 14)
BD BOARD
(Page 15)
OPTICAL
BOARD 
(Page 13)
BASE UNIT (BU-K4BD43)
(Page 19)
CAM (CDM55)
 (Page 18)
OVER WRITE HEAD (HR901)
(Page 16)
CD MECHANISM DECK
(CDM55F-K4BD43)
(Page 18)
MD MECHANISM DECK (MDM-7B),
DIGITAL BOARD
(Page 14)
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