Chapter 2. Adjustments; Adjustments - Sharp AM-900 Service Manual

E AM-900U CHAPTER 2. Market Service Manual Service Manual FAX

ADJUSTMENTS

[1] Adjustments
1. General
Since the following adjustments and settings are provided for this
model, make adjustments and/or setup as necessary.
2. Adjustments of output voltage (FACTORY ONLY)
1. Install the power supply unit in the machine.
2. Set the recording paper and document.
3. When the document is loaded, power is supplied to the output
lines. Confirm that outputs are within the limits below.
2.1. Output voltage settings
CNLSR
CNPUM
CNTCT
CNROLSNS
CNTCVR
1
FUSING UNIT
CONTROL PWB
(TOP SIDE)
CNPW
14
CNHT CN6
1 3 1
1
CN2
THERMAL INTERLOCK
FUSE-2 SWITCH
CNPN
CNSCM
CNFRT
CNORG
CNHPS
CNSP
Pin No.
CNUSB
CNLIU
3
CNPW
14
1
2
Pin No.
POWER SUPPLY
PWB (TOP SIDE)
Pin No.
Pin No.
2 – 1
Output Voltage limits
+24VSUB 23.04V~24.96V
+24VMAIN 23.04V~24.96V
+5VMAIN 4.75V~5.25V
+3.3VMAIN 3.201V~3.399V
Connector CNPW
CNPW
1
MG
+24VSUB
2
3 MG
4 MG
5 +24VMAIN
6 +24VMAIN
7 DG
8 +5VMAIN
9 DG
10 +3.3VMAIN
DG
11
12
/HEATER ON
13 /PWRLY
14 /ZC
Connector
CN6
1 +24VMAIN
2 N.C.
3 +24VS
Connector
CNHT
1
N
N.C.
2
3 L
Connector
CN2
1 1
2 2
AM-900U