Circuit Description; Test Mode Eerte - Kenwood DP-M993 Service Manual
Compact disc player
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Also See for DP-M993:
- Connection manual (1 page) ,
- Instruction manual (25 pages) ,
- Instruction manual (24 pages)
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DP-M993/M5550/M6650
CIRCUIT DESCRIPTION
1. Test Mode
Setting the test mode
This microprocessor can be put the test mode by
just short-circuiting the test pins (#9 and #10) even in
the test mode (normal condition).
Input key
Function
1
STOP
|
(1) Focusing servo ............... esee
OFF
(2) Tracking servo ...
(3) Feed eene
deg
eege
a:
2
REPEAT
(1) Laser
аи
ин ON (In STOP mode only)
3
CHECK
(1) Focusing servo ...
(2) Tracking servo
(3) Feed вегуо. ыш.
4
CLEAR
(1) Focusing serge
ON
А
(2) Tracking servo ............... sss
ON
|
(3) Feed servo
5
PLAY
(1) Focusing servo......................................... ON
(2) Tracking servo
(зуБееф земо
тыны
ем
дыны
|
6
DISC1
Load No.1 disc to No.6 in order.
Read the TOC (table of contents) of disc No.3 to No.6 in order.
TEST mode is cancelled after reading the TOC of No.6 disc, and then playback the 1st track.
Track No.7, 8 and 6 are programmed,
and playback (Track No.6 is playbacked under double speed. Also, TEST mode is cancelled).
DISC3 ~ 6
Load the decided No. disc which is pressed by the disc key and set to STOP mode.
ex. Disc No.4 key is pressed (PLAY, CHECK and CLEAR keys are available to operate).
Turns all FL display lamps ON.
12
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