Kenwood DP-M993 Service Manual

DP.M093/M5550/M6650
CIRCUIT DESCRIPTION
т)
Қ 4-2. Pin fuction
Pin No. | Pin name |1/O Function
1 TESTA | Test terminal, normally "H" or open.
TEST5 E Test terminal, normally "H" or open.
MODO RH Input terminal for inside operation mode setting.
COFS | О | Correction system frame period signal output terminal, 7.35kHz.
SPDA Processor status signal output terminal. Correction judgement result, memory buffer capacity, etc.
ЕСЕП ЕГЕ
Playback system frame period signal output terminal, 7.35kHz
7 SUBSYC Sub code sink signal output terminal.
Sub code О data output terminal.
SB
B
Output terminal for CRC check result of sub code Q. |
10, 11 XI, XO /O | Crystal oscillator connection terminal.
VDD Digital source voltage terminal.
13 GNDD - | Digital ground terminal.
14 ~ 17 | BUSO-3 |O | Input /output terminal for transmission and receiving of commands and data.
‘CCE Input terminal of chip enable signal for transmission and receiving of commands and data. Bus line is active at "L"
2
[| 2 | UMEN Input terminal of signal to inhibit renewal of control bit of sub code О data. Renewal is inhibited at
SUBD E Sub code P-W output terminal.
CLCK ZW Sub code P-W data reading clock input terminal.
25 LOCK O | Lock status output terminal. If sink pattern in EFN signal of run-away detection information is not detected for
17rns, this terminal is set to "L".
TEST1 | | Test terminal, normally "H" or open.
DFCT O | Defect sensing signal output terminal. When defect detected, VREF. Normally HiZ. s
28, 29 TEL2, 1 Єй Analog switch output terminal for tracking gain adjustment, VREF or HiZ.
30 TGUL O | Analog switch output terminal for changeover of low-band phase compensator of tracking servo loop.
When shock detected, HiZ (gain increased), normally VREF.
31 TGUH2 Analog switch output terminal for medium and high band tracking servo loop.
ЕЕЕ О | When shock detected, HiZ (gain increased), normally VREF. TGUH1 used for normally replay and TGUH2 used for
| 32 Tom | | double-speed replay.
33
Tracking actuator kick signal output terminal. Kicked in outside peripheral direction at "H" and inside peripheral
FMON FMON
= ~
18
19
20
1
direction at "L".
Analog switch output terminal for ON and
OFF of feed servo.
AFC signal output terminal for disc motor
CLV servo.
SEL
Hiz
H Normal play etc.
(Focus servo ON : РОК)
19

Kenwood DP-M993 Specifications

General

Brand	Kenwood
Model	DP-M993
Category	CD Player
Language	English