Konica Minolta 7155 - Page 71

WRITE UNIT
2-D-3
2 UNIT EXPLANATION
2. Signals
a. Input signals
(1) POLM_LOCK (PMDB to PRCB)
This signal indicates the clock synchronization
state of M15 (polygon).
[L]: Synchronous (normal)
[H]:Asynchronous (abnormal)
b. Output signals
(1) POLM_CONT (PRCB to PMDB)
This signal turns ON/OFF M15.
[L]: M15 ON
[H]:M15 OFF
(2) POLM_CLK (PRCB to PMDB)
This is a reference clock signal for PLL-control-
ling M15 in PMDB.
[4] Image Write Control
In the case of the 7155/7165
In the case of the 7255/7272
ICB
INDXSB
5V
SGND
/IND
SGND
/INDPR
LDB
GND
VIDEO2
/VIDEO2
GND
LPR5V
LD5V
LD5V
GND
VIDEO1
/VIDEO1
GND
/ENB1
/S/H1
/ALM1
GND
/ENB2
/S/H2
/ALM2
GND
DADI
DACLK
DALD
ADB
CCD
DCPS
24V1
5V2
S.GND
P.GND
4
7272ma2019
ICB
INDXSB
5V
GND
/IND
GND
/INDPR
LDB
/ENB
/ALM1
/S/HB1
/S/H1
GND
LD+5V
LD+5V
+5VRN
GND
-VIDEO2
+VIDEO2
GND
LOAD
DACLK
DI
GND
/ALM2
/S/HB2
/S/H2
/ALMRST
GND
-VIDEO1
+VIDEO1
GND
ADB
CCD
DCPS
24V1
5V2
S.GND
P.GND
4
MODEL MANUAL REVISED EDITION DATE PAGE METHOD
SERVICE MANUAL Dec. 2003
7155/7165/7255/7272
2-D-3 REPLACEMENT