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Circuit Description - Kenwood RD-HD5MD Service Manual

Micro hi-fi component system
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1. Initializing
1-1 Initializing Method
• While holding down the [SET] key, plugged in the
power cord to AC power wall outlet.
1-2 Initializing Operation
• During the initial operation, the display shows "INITIAL-
IZE "and after that it will be returned to standby condition.
2-2 Cancel of the test mode
• Initialized and cancel the test mode if pulling out the power cord.
2-3 Operation of the Test Mode
Key
CD-PLAY/PAUSE
(cyclically change the mode
05 and 03 by pressing the key.
MENU
P.CALL UP
P.CALL DOWN
SET
TE
L 13942296513
3. MD Test Mode for Adjustment
3-1 Contents of the Test Mode
3-2 Entering the Test Mode
• Turn the AC on while pressing the MD[REC] key.
3-3 Canceling the Test Mode
• Turn the AC off.
3-4 Key Operations for Adjustment
KEYS
Volume/multi-control
MD PLAY/PAUSE
STOP
3-5 Selection of Adjustment Test Mode
• Whenever the [volume/multi-control] knob is turned the
adjustment test mode is selected.
No.
LCD
The work of adjustment is unnecessary
1
TEMP ADJU
in this mode.
2
LDPWR ADJU Laser power adjustment.
3
LDPWR CHEC Laser power check.
www
EF balance adjustment
4
EFBAL ADJU
(Traverse adjustment).
5
TE B. ADJ
Automatic EF balance adjustment.
6
FBIAS ADJU
Focus bias adjustment.
.
7
CREC-PLAY
Continuous recording mode.
Continuous playback mode.
For more information on each adjustment mode, refer to
each section of 4, "Electrical adjustment".

CIRCUIT DESCRIPTION

CD Test Mode
Tracking-Servo ON/OFF
CD double speed CD normal speed
• CD Track number up
•The pickup travels outward in the stop mode.
• CD Track number down
• The pickup travels inward in the stop mode.
OPERATION
Select the mode or changed
the adjustment value.
Fix the mode or adjustment value.
Skip to next step.
Cancel the selected mode and
changed to menu page.
Return to the state previous before.
DESCRIPTION
SECTION
x
ao
y
i
RD-HD5MD/HD7
8
2. Test Mode
2-1 Setting method of the Test Mode
Test Mode
CD Test Mode
MD Test Mode
MD Mecha. Test
Mode
Operation
-
Q Q
3
6 7
1 3
3-6 Continuous Playback Mode
(1) Setting of Continuous Playback Mode
No.
Key
1
VOLUME
2
3
6
(MD)
4
6
(MD)
5
STOP
3-7 Continuous Recording Mode
(1) Setting of Continuous Recording Mode
No.
Key
1
VOLUME
2
3
6
(MD)
4-5
4
4-6
STOP
4-6
4. Electrical adjustment
4-7
u163
4-1 Precaution during confirmation of Laser Diode
4-8
emission
4-9
.
3-7
During adjustment, do not view the emission of a laser
3-6
diode from just above for confirmation. This may dam-
age your eyes.
2 9
9 4
2 8
Keys
Setting Method
CD PLAY PAUSE Insert the AC cord to
MD PLAY PAUSE AC wall outlet while
MD REC
holding down
the left key.
MD Test Mode
-
-
MD Track number up
MD Track number down
Stop the MD operation, and start the ALL-
ERASE operation if the disc is recordable.
1 5
0 5
8
2 9
9 4
Display/Function
Select CREC-PLAY
Load a recordable disc.
CREC (ZZZZ) (CREC address)
0300h cluster = recording start point
ó
CPLAY ?
CPLAY MID
C = XXXX
a = YY (error)
C1 error
ADIP error
address MID = 0300h cluster
CREC-PLAY
Display/Function
Select
CREC-PLAY
Load a recordable disc.
CREC (ZZZZ) (CREC address)
0300h cluster = recording start point
ó
CPLAY ?
CREC-PLAY
m
co
9 9
2 8
9 9
5

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