Cd Changer Block System Control Terminal Level; Cd Changer Block Flow Chart - Sanyo MCH-900F Service Manual

CD
CHANGER BLOCK SYSTEM CONTROL TERMINAL LEVELS
CD CHANGER BLOCK SYSTEM CONTROL TERMINAL LEVELS
a.
DISC TRAY (LOADING TABLE) (431) POSITION DETECTION
d
I
PIN No.
TERMINAL NAME
OPEN CLOSE
STOP
IC151 27
TR OPEN H L
H
IC151 26 TR
CLOSE L
H H
b.
DISC CASE (363) AND CD MECHANISM POSITION DETECTION (UP/DOWN)
1
PIN No. TERMINAL NAME
LEVEL
IC151 28
D
UP H
L L
. ... . ...... ... ...... .... . .. ... .. . . . .. .. ..... ..
..
IC151 29 D
DOWN L
H L
CD
PL = "H" DISC CASE 'UP- D15C CASE "DOWN-
DISC CASE "STOP"
., . ..-. . . . . . . . . . . . . . ......... ....
Q151O
CD PL = "'L"
CD MECHANISM CD MECHANISM
CD MECHANISM
—
- DOWN"
-uP- "STOP-
C. OPEN I CLOSE SWITCH (339) POSITION DETECTION
SWITCHES POSITION
PIN No. DISC TRAY POSITION
CIPFN SW I
CLOSE SW 1
------
OPEN L
H (2.7V)
CLOSE
H
L (3.4V)
IC151 33
etc.
H
H
d. CD MECHANISM UPIDOWN SWITCH (393) POSITION DETECTION
1
PIN No.
CD MECHANISM POSITION
SWITCHES POSITION
CK ON SW
CK OF SW
——
UP
L
;(3.4;)
DOWN H
IC151 34
L (2.7V)
etc.
H H
(5.OV)
e. DISC
CASE ELEVATOR SENSOR
P.C.B (315) POSITION DETECTION
(1) S001 : DISC CASE RESET SWITCH
DISC CASE RESET
PIN No.
DISC CASE POSITION
SWITCH S001 POSITION DH LIM INPUT
LIMIT 'L (3.4V)
IC151 34
etc. H
(5
Or
2.7V)
(2)SO02 : UN - LOADING SWITCH
UN - LOADING SWITCH LOADING PL4TE POSITION
PIN No.
S002 POSITION AM LIM INPUT
LIMIT L
IC151 25
etc.
H
(3) Pcool : PHOTO SENSOR
DISC CASE PHOTO
PIN
No.
DISC CASE POSITION
SENSOR PCOO1 POSITION
DH PS INPUT
I 1
DETECTION HOLE
H
IC151 24
et c
I
L
f. DISC PRESENT/ABSENT DETECTION BY DISC SENSOR P. C. BOARDS (345, 450)
,
I
PIN
No.
I "SC I-%%%&i
—
PRESENT H
IC151 22
ABSENT L
g. PC$ITION OETECTION BY LOADING PLATE SENSOR P. C. BOARD (304)
LOADING PLATE (434)
PCO04
PIN No.
POSITION
AM PS INPUT
DETECTION HOLE POSITION
H
IC151 23
etc. L
h. CD MECHANISM POSITION OETECTION BY DISC SENSOR P. C. BOARD (450)
I 1 1
I
CD CHANGER BLOCK FLOWCHART
a.
DISC CHANGING
DISC CHANGE PROCESSING
I
—
.... ... ..... ............... ....... .... ... . .... .. .. ........ ... ......................
..
t
I
DISC CASE (363)
I
j LOAD POSITION CHECK
CORRECT :
1 . . . . . . . . . .
. .s .
. ..1
DISC CASE (363) POSITION
ADJUSTMENT
I
LOAO IN DISC CASE
I
=+=
; ...................
..J. .. ...
~.=+=
+""'""""'''"""""
t)
2
DISC REMAINING CHECK
-62-
-63-