Kenwood DMC-J7R, Руководство по обслуживанию

Страница: 7 / 28

DMC-J7R
7
CIRCUIT DESCRIPTION
66 P52 RCLAT Output Record audio
67 P53 PBOPON Output Audio IC output stage control output
68 P54 MCPGIN Input Mic plug insertion detection input
69 P55 INPGIN Input Line/digital plug insertion detection
70 P56 INPGCK Input Line/digital plug type detection
71 P57 RCPCNT Output Record circuit power control output
72 VSS VSS Output Ground potential
73 P60 EMPHO Output Audio emphasis control output 0
74 P61 HPLAY Input Main unit PLAY key operation detection input
75 P62 HREC Input Main unit REC key operation detection input
76* P63 RTCCE Output Clock IC chip enable control output
77* P64 RTCWR Output Clock IC read/write control output
78 P65 CEDT In/Output Clock/EEPROM serial data input/output
79 P66 CECK Output Clock/EEPROM serial data input/output
80 P67 EPCS Output EEPROM chip selection output
81 VDD VDD Output Positive power supply
82 T15 SPIN Inout Spindle motor FG pulse detection input
83* P101 P101 Output Spare for sled motor control
84* P102 TEST0 Input Test mode setting input 0
85* P103 TEST1 Input Test mode setting input 1
86 P30 PSLINN Output Built-in battery power selection output
87 P31 PSLDCI Output DC jack power selection output
88 P32 PSLDRY Output Dry cell power selection output
89* P33 P33 Output Spare for sled motor control
90 P34 ELON Output Remote controller EL light control output
91 T100 CIN Input Truck cross signal detection input
92 P36 PHOLD Output Dry cell power ON holding output
93 P37 PCNT1 Output Power IC VREF feed control output
94 TEST/VPP VPP Output Test/R-ROM write power input
95 P90 PCNT2 Output Power IC VCC feed control output
96 P91 CKSTP Output Main clock stop control output
97 P92 DISCIN Input Disk insertion detection input
98 P93 INNSW Input Mechanism inner SW position detection input
99 P94 DISCPR Input Record enable/disable switch detection input
100 P95 PDCNT Output PD current control output for inner detection
Pin No. Function Port Name Terminal Name Input/Output
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
Table1: TEST PORT
Table2: EMPHASIS PORT
T E S T 1 T E S T 0 D e s c r i p t i o n
E M P H 1 E M P H 0 D e s c r i p t i o n
H H Normal mode
H H fs: 32kHz ON
H L No adjustment
H L fs: 48kHz ON
L H Test mode
L H fs: 48kHz OFF
L L Prohibition
L L fs: 44.1kHz ON
Table3: LDCNT PORT
E M P H 1 E M P H 0 D e s c r i p t i o n
H H Brake
H L UP
L H DOWN
L L OFF
SYSTEM LSI EXTENSION PORT(IC:201/LR37648)
Pin No. Port Name I / O D e s c r i p t i o n s R e m a r k s
52,53 LDCNT1,2 O Recording head up/down control port. table3
54 - O No use open
55 EMPH1 O Audio emphasis control port. table2
56 DCNT1 O Mechanism driver enable port. H= enable
57 OPTCNT O Power on/off for optical input circuitry. H= on
58 DAPON O D/A converter control port H=work
59 ADPON O A/D converter control port H=work
1 P120 SWP UP Output Asterisk input Output for pull-up
2*~7* P121~P126 P121~P126 Output Not used
8 P127 OEM Input Product brand ID input
9 VDD VDD Input Positive power supply
10* X2 X2 Input Not used
11 X1 X1 Input Main system clock input
12 VSS VSS Input Ground potential
13* XT2 XT2 Input Not used
14 XT1 XT1 Input Subsystem clock input
15 RESET RESET Input Microcomputer hard reset input
16 INPUT0 DINT Input System LSI interruption request input
17 P01 SENSE Input System LSI servo sense input
18 P02 FOK Input Focus OK signal input
19 P03 XRST Outout System LSI hard reset output
20* P04 P04 Output Not used
21 P05 HDON Output Record head current control output
22 P06 VLIM Intput Volume limiting switch input
23 AVDD AVDD Input A/D converter analog positive power
24 AVREF0 AVREF0 Input A/D converter reference voltage input
25 ANI0 PLVINN Input Built-in battery voltage detection input
26 ANI1 PLVDCI Input DC jack voltage detection input
27 ANI2 PLVDRY Input Dry cell voltage detection input
28 ANI3 RKEY Input Remote controller key operation detection input
29 ANI4 HKEY1 Input Main unit key operation detection input 1
30 ANI5 HKEY2 Input Main unit key operation detection input 2
31 ANI6 TEMP Input Ambient temperature detection input
32 ANI7 CNTRY Intput Product destination ID input
33 AVSS AVSS Intput A/D converter ground potential
34 ANO0 LDVAR Output P.U. laser power set output
35* ANO1 MDOUT Output Internal motion mode output
36 AVREF1 AVREF1 Output D/A converter reference voltage input
37 P70 SYWR Output System LSI write enable output
38 P71 SYRD Output System LSI read enable output
39 P72 SYRS Output System LSI register selection output
40 P20 - Output Not used
41 SO1 RMDAT Output Remote controller display data output
42 P22 - Output
43 P23 HSTOP Input Main unit STOP key operation detection input
44 P24/BUZ BEEP Output Beep tone pulse output
45 P25 DSPSTB Output Main unit display control strobe output
46 SO0 DSPDAT Output Main unit display control serial data output
47 SCK0 DSPSCK Output Main unit display control serial clock output
48~55 P80~P87 SYD0~SYD7 In/Output System LSI parallel data bus
56 P40 EJECT Input Eject lever operation detection input *
57 P41 KHOLD Input Main unit key hold switch input
58 P42 RPLAY Input Remote controller PLAY key operation detection input
59* P43 HFON Output P.U. high frequency superposition control output
IC401 RH-iX2680AF03(IX2680AF):System Microcomputer
Pin No. Function Port Name Terminal Name Input/Output
In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.
60 P44 LDON Output P.U. laser ON/OFF control output
61 P45 OPICGA Output P.U. detection sensitivity selection output
62 P46 RFLAT Output RF amp. IC data latch output
63 P47 RACLK Output RF/audio IC data clock output
64 P50 RADAT Output RF/audio IC serial data output
65 P51 PBLAT Output Playback audio IC data latch output
DMC-J7R(K)
COVER1,1P(
98.11.30
1:44
PM
y[W
14