Kenwood DP-3010 Service Manual page 40

DP-3010
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CIRCUIT DESCRIPTION
@ TGUL/H Pin: During Normal Play and Search
VREF fixed output. (Set to the lower
gain side)
During Special Play
GUP2 bit data = 1 set — HiZ (Gain
Up)
GUP2 bit data == O set — VREF fixed
output.
® FMON Pin: During Normal Play... HiZ
During NKIC and CKIC command input
FMSS bit data = 1 set —HiZ
(The Lense Kick Signal is impressed
on the Feed Motor)
FMSS bit data = 0 set — VREF fixed
output.
(Feed Motor STOP)
During PAUSE command input
After the Lense Kick operation is
complete the FMON pin is hold VREF
(Feed motor stop) to next (CM-D)
Search Command input
During NKICF, CKICF and FEED Com-
mand input
VREF fixed output.
@ FMFB Pin: During Normal Play ... HiZ
During NKICF, CKICF and FEED com-
mand input
(a) When in FWD Search. . . Vo2 is
fixed.
{b) When in BWD Search . . . Vss is
fixed.
ic) When BR bit data = 0 in (a) and {b)
(No brake) and the designated
number of tracks, N, is traversed,
the FMFB pin becomes HiZ.
{d) When BR bit data = 1 in (a) and
(b)(with brake) and the designated
number of tracks, N, is traversed,
the FMFB pin will output the oppo-
site electrical value (Brake Pulse)
and then change to HiZ after search
is complete.
@ FMGUPin: See CM-D Write Command for details.
The above are the details for the Correlation Pins. When
concidering the system the most important items will be
the gain of the Tracking Servo AMP selection (TGUL/H pin
correlation).
Also when using any of the Search Commands and operat-
ing the kick in FWD, the TKIC pin will be Vop2.
For this, the polarity signal of the TSO pin will have to be
changed from "+" to match that of the Tracking Error Vol-
tage.
CIRCUIT DESCRIPTION
{5) Normal Play Defect/Shock Detection System
TA8101N
TSO
TC9201 BF
Diagram 7-29 System Construction Diagram
Correlation Pins: | TESH. TUL, TGUH, DFCT, FMGU. SEL
Commands: SETRO (98 R, Ry). SRCK (99 Ck X),
DEFECT-1 (9B N TN), DEFECT-il (9CM
TM), SHOCK (9 DL Ty, SETR2 (9F R;
Rg), NKIC (CRs 00), NKICF (DRs 00)
Command Reception Conditions: DMSV(84xx) Command
Set
(FOK is to be = H —
Focus ON)
Note: Each Command Bit Information (for details see
Write Command CM-C and CM-D)
, Ri R2 R5
{| ATTC MCG GUP1
| MUTC FSPS_— HYS1
HOSTP DIV+ © GUP2
GUPCL DIV- | HYS2 ;
DP-3010
Disc Motor Drive
Feed Motor Drive
Tracking Coil Drive
4bitdata Tracking Error Signal and
Through Rate Clock
4bitdata Defect/Shock Detection Sensi-
tivity Level
TN,TM,TL....4bitdata Pulse Delay Timer for
Defect/Shock Detection
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