Sharp FO-6700 Service Manual Page 38
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- Table of contents
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FO-6700U
FO-67DL
SW31 No. 8 Reserved
Set to "0".
SW32 No. 1 Dial mode
Switch the type according to the telephone circuit connected to the fac-
simile.
0: PULSE DIAL
1: TONE DIAL
SW32 No. 2 Reserved
Set to "1".
SW32 No. 3, No. 4 Reserved
Set to "0".
SW32 No. 5, No. 6 Reserved
Set to "1".
SW32 No. 7, No. 8 Reserved
Set to "0".
SW33 No. 1 ~ No. 4 Number of rings for auto-receive
(0: No ring receive)
When the machine is set in the auto receive mode, the number of rings
before answering can be selected. It may be set from one to nine rings
using a binary number. If the soft switch was set to 1, a direct connection
is made to the facsimile. If it was set to 0 accidentally, receive ring is set
to 1. If it was above 9, receive rings are set to 9.
SW33 No. 5 ~ No. 8 Reserved
Set to "0".
SW34 No. 1, No. 2 Reserved
Set to "0".
SW34 No. 3, No. 4 Reserved
Set to "1".
SW34 No. 5, No. 6 Reserved
Set to "0".
SW34 No. 7 Reserved
Set to "1".
SW34 No. 8 Reserved
Set to "0".
SW35 No. 1 Reserved
Set to "0".
SW35 No. 2 Reserved
Set to "1".
SW35 No. 3 ~ No. 8 Reserved
Set to "0".
SW36 No. 1 JBIG (Joint Bi-level Image Group)
An image compression encoding method recommended by ITU-T.
It realizes 2-second transmission when the power is turned on.
SW36 No. 2 JBIG option
An optional function for JBIG.
SW36 No. 3 MMR
MMR (Modified MR) selects presence of the compression function.
SW36 No. 4 MR
MR (Modified READ) selects presence of the compression function.
SW36 No. 5 ~ No. 8 Modem speed
Used to determine the initial modem speed. The default is
14400BPS(V.17). It may be necessary to program it to a slower speed
when frequent line fallback is encountered, in order to save the time
required for the fallback procedure.
SW37 No. 1, No. 2 Reception speed fixed
The transferable speed of modem in the receiving mode is set.
SW37 No. 3 DIS receive acknowledge during G3 transmission
Used to make a choice of whether reception of NSF (DIS) is acknowl-
edged after receiving two NSFs (DISs) or receiving one NSF (two DISs).
It may be useful for overseas communication to avoid an echo sup-
pression problem, if set to 1.
SW37 No. 4 Non-modulated carrier in V.29 transmission mode
Though transmission of a non-modulated carrier is not required for trans-
mission by the V29 modem according to the CCITT Recommendation, it
may be permitted to send a non-modulated carrier before the image
signal to avoid an echo suppression problem.
It may be useful for overseas communication to avoid an echo sup-
pression problem, if set to 1.
SW37 No. 5 CNG send when manual TX
CNG signal sending ON/OFF in case of manual transmission is set.
SW37 No. 6 Protocol monitor
Normally set to "0". If set to "1", communication can be checked, in case
of troubles, without using a G3 tester or other tools.
When communication FSK data transmission or reception is made, the
data is taken into buffer. When communication is finished, the data
analyzed and printed out. When data is received with the line monitor
(SW7-No. 7) set to "1" the reception level is also printed out.
SW37 No. 7 Line monitor
Normally set to "0". If set to "1", the transmission speed and the recep-
tion level are displayed on the LCD. Used for line tests.
SW37 No. 8 Reserved
Set to "0".
SW38 No. 1, No. 2 Compromised equalizer
The specific line equalizer is inserted.
No. 1 No. 2
0 0 The line equalizer built in the modem is turned off.
0 1 Line equalizer corresponding to 1.8 km
1 0 Line equalizer corresponding to 3.6 km
0 1 Line equalizer corresponding to 7.2 km
SW38 No. 3 H2 mode
Used to determine H2 mode (15sec transmission mode). When set to
OFF, H2 mode is inhibited even though the transmitting machine has H2
mode.
SW38 No. 4 ~ No. 8 Signal transmission level
Used to control the signal transmission level in the range of –0dB to
–31dB.
SW39 No. 1, No. 2 CED tone signal interval
For international communication, the 2100Hz CED tone may act as an
echo suppresser switch, causing a communication problem. Though this
soft switch is normally set to "0", it should be set to "1" so as to change
the time between CED tone and DIS signal from 75ms to 500ms to
eliminate the communication problem caused by echo.
SW39 No. 3 Equalizer freeze
This switch is used to perform reception operation by fixing the equal-
izer control of modem for the line which is always in an unfavorable
state and picture cannot be received. Usually, the control is executed
according to the state of line where the equalizer setting is changed
always.
SW39 No. 4 Equalizer freeze conditions
Setting which specifies SW9 No.3 control only in condition of 7200bps
modem speed.
SW39 No. 5 CED detection time
The detection time of the CED signal from the called side in the auto
calling mode is set.
2 – 30
- SERVICE MANUAL 1
- FACSIMILE 1
- CONTENTS 3
- [1] Specifications 4
- 28 29 30 31 32 33 5
- 40393837363534 5
- CHAPTER 2. ADJUSTMENTS 9
- MEMORY CLEAR ? 10
- 1) Soft switch mode 11
- 2) Print area 11
- 3) ROM & RAM check 11
- After setup of the document 12
- Only the sensor which is 12
- SPEED key SXXX XXX 13
- : Speed key number 13
- 2-2. Print diagnosis 15
- • Blank paper aging mode 15
- • SW1 to SW30 : For line 1 17
- • SW31 to SW60 : For line 2 17
- 4. Soft switch description 18
- • Soft switch 18
- [3] Troubleshooting 44
- [4] Error code table 45
- Super G3 mode 46
- 2. Service call error massage 46
- Wire treatment 52
- [1] Block diagram 53
- [2] Wiring diagram 54
- [1] Circuit description 57
- (8) Gate Array (B) Block 64
- (9) CODEC Block 66
- (10) Page Memory Block 69
- (11) Driver Block 70
- (12) DPRAM I/F Block 71
- 1. General description 72
- (1) Sub CPU Block 72
- (2) Modem Block 75
- (8) JBIG Block 80
- IC3: VHiM65761FP-1(M65761FP) 80
- CPU & memory block 82
- Flash memory block 3/16 84
- Reading block 4/16 85
- Gate array (B) block 7/16 88
- Codec block 8/16 89
- Page memory block 9/16 90
- Other block 14/16 95
- Connector block 1 15/16 96
- FO-6700U 100
- Modem block 2/7 101
- Gate array block 3/7 102
- QM-coder block 4/7 103
- Dual port RAM block 5/7 104
- Access control block 6/7 105
- Connector block 7/7 106
- LIU PWB parts layout 109
- Printer PWB circuit 2/2 111
- T1 7 8 – 9 114
- T1 2 – 3 114
- Power Supply PWB parts layout 115
- High Voltage PWB parts layout 119
- Toner Empty PWB parts layout 120
- Memory PWB circuit 2/3 126
- Memory PWB circuit 3/3 127
- [1] G3 Protocol 129
- [2] Super G3 Protocol 130
- [3] Power On Sequence 131
- CHAPTER 8. OTHERS 132
- 2. Description 133
- For inspection 135
- [2] IC Signal Names 137
- 8 7 5 8 B 138
- PRINTER PWB UNIT 139
- 16 15 14 13 12 11 10 9 142
- 1 2 3 4 5 6 7 8 142
- 1C 2C 3C 4C 5C 6C 7C COM 142
- 1B 2B 3B 4B 5B 6B 7B E 142
- PARTS GUIDE 143
- [12] 2nd.Cassette (1) 158
- I n d e x 184
- © 2000 BY SHARP CORPORATION 192
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