Sharp FO-4650 User manual

1 - 1
FO-4650U
No. 00ZFO4650USME
Parts marked with " " is important for maintaining the safety of the set. Be sure to replace these parts with specified ones for maintain-
ing the safety and performance of the set.
This document has been published to be used
for after sales service only.
The contents are subject to change without notice.
SHARP CORPORATION
SERVICE MANUAL
Laser Wave Length : 770-810 mm
Laser Pulse Times : 49.2 µs
Laser Output Power : 0.37 mW
CAUTION
This laser facsimile is a class 1 laser product that complies with 21CFR 1040.10 and 1040.11 of the CDRH standard or IEC60825-1.
This means that this machine does not produce a hazardous laser radiation. The use of controls, adjustments or performance of
procedures other than those specified herein may result in hazardous radiation exposure.
This laser radiation is not a danger to the skin, but when an exact focusing of the laser beam is achieved on the eyes retina, there is
danger of spot damage to the retina.
The following cautions must be observed to avoid exposure of the laser beam to your eyes at the time of servicing.
1) When a problem in the Laser Optical Unit has occurred, the whole Optical Unit must be exchanged as a unit.
2) Do not look into the machine with the Main Switch turned on after removing the Toner/Developer Unit and Drum Cartridge.
3) Do not look into the laser beam exposure slit of the Laser Optical Unit with the connector connected when removing and install-
ing the Optical Unit.
4) The cover of Laser Printer Unit contains the Safety Interlock Switch.
Do not defeat the safety interlock by inserting wedges or other items into the switch slot.
FACSIMILE
MODEL FO-4650
SELECTION CODE DESTINATION
U U.S.A.
The FO-4650U Service Manual contains information which differs from the FO-4700U Service Manual.
For additional information, refer to the FO-4700U (00ZFO4700USME) Service Manual.
Difference between FO-4700U and FO-4650U
FO-4700U FO-4650U
Control PWB Unit DCEKC082MXHZZ DCEKC789PXHZZ
Printer PWB Unit DCEKC470BXH01 DCEKC470BXH03
Memory PWB OPTION (FO-1MK) NOT SUPPLY
PC I/F PWB OPTION (FO-47IF) NOT SUPPLY

1 –2
FO-4650U
CONTENTS
CHAPTER 1. GENERAL DESCRIPTION
[1] Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1
[2] Operation panel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-2
[3] Transmittable documents (Refer to the service manual of FO-4700U/FO-47UC) . . . . . . . . . . . . . . 1-4
[4] Installation (Refer to the service manual of FO-4700U/FO-47UC) . . . . . . . . . . . . . . . . . . . . . . . . . 1-4
[5] Quick reference guide (Refer to the service manual of FO-4700U/FO-47UC) . . . . . . . . . . . . . . . . 1-4
CHAPTER 2. ADJUSTMENTS
[1] Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2-1
[2] Diagnostics and service soft switches (Refer to the service manual of FO-4700U/FO-47UC) . . . . 2-2
[3] Troubleshooting (Refer to the service manual of FO-4700U/FO-47UC) . . . . . . . . . . . . . . . . . . . . . 2-2
[4] Error code table (Refer to the service manual of FO-4700U/FO-47UC) . . . . . . . . . . . . . . . . . . . . . 2-2
CHAPTER 3. MECHANICAL DESCRIPTION
[1] Mechanical description (Refer to the service manual of FO-4700U/FO-47UC) . . . . . . . . . . . . . . . . 3-1
[2] Printer description (Refer to the service manual of FO-4700U/FO-47UC) . . . . . . . . . . . . . . . . . . . . 3-1
[3] Disassembly and assembly procedures (Refer to the service manual of FO-4700U/FO-47UC) . . . 3-1
CHAPTER 4. DIAGRAMS
[1] Block diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1
[2] Wiring diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-2
[3] Point-to-point diagram and connector signal name . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3
CHAPTER 5. CIRCUIT DESCRIPTION
[1] Circuit description (Refer to the service manual of FO-4700U/FO-47UC) . . . . . . . . . . . . . . . . . . . . 5-1
[2] Circuit description of Control PWB (Refer to the service manual of FO-4700U/FO-47UC) . . . . . . . 5-1
[3] Circuit description of LIU PWB (Refer to the service manual of FO-4700U/FO-47UC) . . . . . . . . . . 5-1
[4] Circuit description of Operation PWB (Refer to the service manual of FO-4700U/FO-47UC) . . . . . 5-1
[5] Circuit description of Power Supply PWB (Refer to the service manual of FO-4700U/FO-47UC) . . 5-1
CHAPTER 6. CIRCUIT SCHEMATICS AND PARTS LAYOUT
[1] Control PWB circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
[2] LIU PWB circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-19
[3] Printer PWB circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-21
[4] Power Supply PWB circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-25
[5] Operation Panel PWB circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-27
[6] High Voltage PWB circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-29
[7] Toner Empty PWB circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-31
CHAPTER 7. OPERATION FLOWCHART
[1] Protocol (Refer to the service manual of FO-4700U/FO-47UC) . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1
[2] Power on sequence (Refer to the service manual of FO-4700U/FO-47UC) . . . . . . . . . . . . . . . . . . 7-1
CHAPTER 8. OTHERS
[1] Service Tools (Refer to the service manual of FO-4700U/FO-47UC) . . . . . . . . . . . . . . . . . . . . . . . 8-1
[2] IC signal name (Refer to the service manual of FO-4700U/FO-47UC) . . . . . . . . . . . . . . . . . . . . . . 8-1
PARTS GUIDE

1 – 1
FO-4650U
CHAPTER 1. GENERAL DESCRIPTION
[1] Specifications
• GENERAL
* Based on ITU-TTest Chart #1 at standard resolution in Sharp special
mode, excluding time for protocol signals (i.e., ITU-T phase C time
only).
Automatic dialing Rapid Key Dialing: 48 numbers
Speed Dialing: 75 numbers
Memory size* 1 MB (approx. 56 pages)
Modem speed 14,400 bps (max.)
Automatic fallback to lower speeds.
Transmission time* Approx. 6 seconds
Toner cartridge yield Initial starter cartridge (included with
(4% page coverage, fax machine): Approx. 3000 pages
letter paper) Replacement cartridge (FO-47ND):
Approx. 6000 pages
Drum cartridge yield Initial starter cartridge (included with
fax machine): 20,000 pages (avg.)
Replacement cartridge (FO-47DR):
20,000 pages (avg.)
Resolution Horizontal: 203 pels/inch (8 pels/mm)
Vertical:
Standard: 98 lines/inch (3.85 lines/mm)
Fine /Halftone:
196 lines/inch (7.7 lines/mm)
Super fine:
391 lines/inch (15.4 lines mm)
Automatic document Letter paper(20 lb): Max. 50 pages
feeder Legal paper: Max. 20 pages
(Note: 11" x 17" paper must be loaded
one page at a time.)
Paper capacity 250 sheets (500-sheet
cassette available as option)
Compression scheme MMR, MR, MH, Sharp (H2)
Halftone (grayscale) 64 levels
Applicable telephone line Public switched telephone network
Compatibility ITU-T (CCITT) G3 mode
Printing resolution Horizontal: 406 lines/inch
(16 lines/mm)
Vertical: 391 lines/inch
(15.4 lines/mm)
Input document size Automatic feeding:
Width: 5.8 to 10.1" (148 to 256 mm)
Length: 5.0 to 14.3" (128 to 364 mm)
Manual feeding:
Width: 5.8 to 11.0" (148 to 279 mm)
Length: 5.0 to 17.0" (128 to 432 mm)
Effective Scanning width 8.3" (210 mm) max.
Effective Printing width 8.0" (203 mm) max.
Reception modes Auto/Manual
Instascan speed 30 ppm (letter paper)
Full Dual Access Yes
Copy function Single/Multi/Sort (99 copies/page)
Power requirements 120 V AC, 60 Hz
Operating temperature 50 - 86°F (10 - 30°C)
Humidity 20 to 85% RH
Power consumption Standby: 10 W
Maximum: 580 W
Dimensions Width: 18.1" (460 mm)
Depth: 15.2" (385 mm)
Height: 10.6" (270 mm)
Weight Approx.27.8Ibs.(12.6kg)
Option
Toner cartridge : FO-47ND
Drum cartridge : FO-47DR
Paper cassette : FO-47UC
Verification stamp : FO-45VS
As a part of our policy of continuous improvement, SHARP reserves the right to make design and specification changes for product
improvement without prior notice. The performance specification figures indicated are nominal values of production units. There may be some
deviations from these values in individual units.

1 – 2
FO-4650U
[2] Operation panel
123
456
7
89
10
RESOLUTION
STANDARD
FINE
SUPER FINE
HALF TONE
LINE IN USE
CHANGEOVER
POWER SAVE
STATUS CHECK
CLEARSPSHIFTSPACE
A
I
Q
Y
B
J
R
Z
C
K
S
D
L
T
E
M
U
F
N
V
G
O
W
H
P
X
01
09
17
25
02
10
18
26
03
11
19
04
12
20
05
13
21
06
14
22
07
15
23
08
16
24
27 28 29 30 31 32
CLEARSPSHIFTSPACE
A
I
Q
Y
B
J
R
Z
C
K
S
D
L
T
E
M
U
F
N
V
G
O
W
H
P
X
33
41
CONTRAST
SEARCH DIAL
34
42
PAGE COUNTER
35
43
CONFIDENTIAL
36
44
TIMER
37
45
RELAY
38
46
39
47
MEM.STATUS
40
48
LIFE
DOWN UP
COVER SHEET
Rapid Key
overlay down
Rapid Key
overlay up
11
20 21 22 23 24 25 26
12 13 14 15 16 17 18 19
11
123
456
789
0
ABC
GHI
DEF FUNCTION
COPY DOCUMENT DUPLEX SCAN
BROADCAST
STOP START
REPORT
SPEED DIAL
REDIAL
SPEAKER
JKL MNO
PRS TUV
OPER
WXYZ
PRIORITY
27 28 29 30 31 32
39383736353433
Display
This displays messages and prompts during operation and
programming.
LINE IN USE light
This lights when the fax machine is using the telephone line.
STATUS CHECK light
This lights when a paper size error or paper jam occurs, or when
the print compartment cover is open. A message will appear in
the display to indicate the problem. (The indicator also lights
steadily when the received document tray is not properly installed.)
Service indicator
This lights when a problem occurs which must be fixed by a
service technician.
Paper out indicator
This lights when the fax machine is out of paper. If the machine
has a paper cassette, the indicator blinks when one of the paper
sources (tray or cassette) is out of paper, and lights steadily
when all sources are out of paper.
Toner cartridge indicator
This blinks when the toner cartridge nears empty, and lights
steadily when the toner cartridge needs replacement.
Drum cartridge indicator
This blinks when the drum cartridge needs replacement.
CHANGEOVER key
Two types of information appear in the display: prompts related
to operations you are performing, and information about how
the fax is using the telephone line (transmitting, receiving, etc.).
Press this key to switch between the two types of information.
POWER SAVE key
Press this key to turn on Power Save Mode, or set the Power
Save Mode timer if TIMER has been selected with Option
Setting 34 (Power Save Type).
RESOLUTION key
Press this key to adjust the resolution before sending or copying
a document.
Rapid Dial Keys
Press one of these keys to dial a fax number automatically.
(Note that you must attach the Rapid Key labels.)
CONTRAST key
Press this key to adjust the contrast before sending or copying
a document.
PAGE COUNTER key
Press this key to include a slash and the total number of pages
after each page number on the pages of a transmitted document.
CONFIDENTIAL key
Press this key to send or print out a confidential document.
TIMER key
Press this key to set an operation to be performed automatically
at a later time.
RELAY key
Press this key to send a document to another Sharp fax machi-
ne and have that machine in turn relay the document to one or
more end receiving machines.
LIFE key
Press this key, followed by 1, to check the total number of pages
printed by the fax machine.
MEM. STATUS key
Press this key to check the status of documents waiting in mem-
ory for transmission.
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18

1 – 3
FO-4650U
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
SEARCH DIAL key
Press this key to search through your auto dial fax numbers by
name.
COVER SHEET key
Press this key to include a cover sheet when sending a fax.
SPACE key
Press this key to enter a space when programming a name.
SHIFT key
Press this key to switch between upper and lower case letters
when programming a name.
SP key
Press this key to enter a symbol when programming a name.
CLEAR key
Press this key to clear a mistake when programming a name or
fax number.
Arrow keys
Press these keys to move the cursor forward or backward when
programming a name or fax number.
UP and DOWN keys
Press these keys to adjust the volume of the speaker when the
SPEAKER key has been pressed, or the volume of the ringer at
all other times.
Dial keypad (numeric keys)
Use these keys to dial and program fax numbers.
FUNCTION key
Press this key to select various special functions.
SPEED DIAL key
Press this key to dial a Speed Dial number.
COPY key
Press this key to make a copy of a document.
DOCUMENT key
Press this key to transmit a document without reading it first
into memory.
DUPLEX SCAN key
Press this key to transmit or copy a two-sided document.
REDIAL key
Press this key to automatically redial the last number dialed.
SPEAKER key
Press this key when transmitting a document by Normal Dialing
to listen to the line and verify the response of the receiving fax
machine.
BROADCAST key
Press this key to send a document to a group of receiving fax
machines.
STOP key
Press this key to cancel an operation before it is completed.
PRIORITY key
Press this key when you need to transmit a document ahead of
other documents waiting in memory for transmission.
START key
Press this key to begin transmission when using Speed Dialling,
Direct Keypad Dialling, or Normal Dialling.
REPORT key
Press this key to print out a report on the most recently complet-
ed transmission or reception.

1 – 4
FO-4650U
[3] Transmittable documents
Refer to the service manual of FO-4700U/FO-47UC
[4] Installation
Refer to the service manual of FO-4700U/FO-47UC
[5] Quick reference guide
Refer to the service manual of FO-4700U/FO-47UC

FO-4650U
2 – 1
CHAPTER 2. ADJUSTMENTS
[1] Adjustments
General
Sincethefollowingadjustmentsandsettingsareprovidedforthismodel,
make adjustments and/or setup as necessary.
1. Adjustments
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.
Output voltage settings
Fig. 1
CNPW CNPRT
CN1
IC2
CN1
CN7
CN4
1
1
1
1
11
11
8
1
1
1
112
30
30
12
8
CONTROL
PWB
PRINTER
PWB
HI VOLTAGE
PWB
CN5
CN1
POWER SUPPLY
PWB
IC2
VR1 VD
Voltage for adjust
+ Check point for voltage
Digital multi meter
+–
–
Connector CN5
No.
Pin No. CNPW
1 +24V SUB
2MG
3MG
4MG
5 +24V MAIN
6 +24V MAIN
7 +5V SUB
8DG
9DG
10 DG
11 +5V MAIN
12 +5V MAIN
Connector CN4
No.
Pin No. CN1
1 11 +5V
2 10 HV C HL
39TVR
4 8 T REM
5 7 T MON
6 6 B MON
7 5 B VR
8 4 C REM
9 3 C MON
10 2 MG
11 1 +24
Connector CN1
No.
Pin No. CN7
1 24 MAIN
2MG
3DG
4 5V MAIN
5 HEATER ON
6FAN
7 FAN LOCK
8 H RELAY OFF
Output Voltage limits
+5V MAIN 4.845V~5.355V
+5V SUB 4.845V~5.355V
+24V MAIN 23.04V~24.96V
+24V SUB 23.04V~24.96V
Top Void Printer Adjust Voltage
Label (mm.) Fig. 2 VR1 Fig. 1
5.5~6.9 4.42V
7.0~8.9 3.87V
9.0~10.9 3.14V
11.0~12.9 2.50V
13.0~14.9 1.86V
15.0~17.0 1.22V
ADJUST VOLTAGE LIST
TOP VOID LABEL
Fig. 2
2
(step 1) Select "OPTION SETTING".
DISPLAY:
DISPLAY:
DISPLAY: TONE SELECTED
KEY:
FUNCTION 4
KEY:
4:OPTIONAL SETTING
ENTER #(01-34, ,#)
KEY:
DIAL MODE 1=TONE, 2=PULSE
KEY:
KEY:
DISPLAY:
(step 4) End, using the "STOP" key.
(step 3) Select, using "1" or "2".
(step 2) Select "DIAL MODE".
1
2
PULSE SELECTED
STOP
Cursor
When initially registering,
the mode shows 1=TONE.
When registering again, the
mode which was registered
formerly is shown.
2
2. IC protectors replacement
ICPs (IC Protectors) are installed to protect the TX motor drive circuit
and verification stamp drive circuit. ICPs protect various ICs and elec-
tronic circuits from an overcurrent condition.
The location of ICPs are shown below:
(1) F100 (ICPS10) is installed in order to protect IC’s from and
overcurrent generated in the verification stamp drive circuit. If F100
is open, replace it with a new one.
(2) F101 (ICPS18) isinstalledinordertoprotectIC’sfrom anovercurrent
generated in the TX motor drive circuit. If F101 is open, replace it
with a new one.
In addition to the replacement of F101 and F100, the factor causing
F101 and F100 to open must also be repaired. If not, F101 and
F100 will open again.
Replacement parts
ICPS10 (Sharp code: VHViCPS10//-1)
ICPS18 (Sharp code: VHViCPS18//-1)
3. Settings
(1) Dial mode selector
OPTION SETTING: DIAL MODE (Soft Switch No. SW2 DATANo. 1)
Use this to set the fax machine to the type of telephone line you are on.
• The factory setting is "TONE".
Fig. 3
CONTROL PWB
(BOTTOM SIDE)
F100
F101
IC7
CNSP
CNSEN
CNCIS
CNPN
CNSTP
CNTXM
CNPW CNPRT CNLIU
1
1
2
1
8
101
1
11
150
27 25
1130
12
42
24
9
CNOP

FO-4650U
2 – 2
[2] Diagnostics and service soft switches
Refer to the service manual of FO-4700U/FO-47UC
[3] Troubleshooting
Refer to the service manual of FO-4700U/FO-47UC
[4] Error code table
Refer to the service manual of FO-4700U/FO-47UC

FO-4650U
3 – 1
CHAPTER 3. MECHANICAL DESCRIPTION
[1] Mechanical description
Refer to the service manual of FO-4700U/FO-47UC
[2] Printer description
Refer to the service manual of FO-4700U/FO-47UC
[3] Disassembly and assembly procedures
Refer to the service manual of FO-4700U/FO-47UC

FO-4650U
4 – 1
CHAPTER 4. DIAGRAMS
[1] Block diagram
FO-45VS
VERIFICATION STAMP
(OPTION)
LZ9FJ59
MAIN CPU
SH7021
SRAM
256KB
DRAM
2MB
MODEM
14.4Kbps
EPROM
2MB
CODEC
HD813201F
CODEC I/F
LR38292
DRAM
2MB
RAM
2KB
R.T.C.
CIS UNIT
I/O PORT
MOTOR/
MECHANISM
CONTROL
FLASH MEMORY
CONTROL
PRINTER I/F
PANEL I/F
DRAM
CONTROLLER
DRIVER
MOTOR
DRIVER TX MOTOR
SENSOR
SPEAKER
SCANNER UNIT
DRIVER
CONTROL PWB UNIT
INTERRUDTION
REQUIREMENT
CONTROL
MAPPER
RECORD DATA
PROCESSING IMAGE TREATMENT LSI
LC82103
TEL
LINE
LIU
PWB UNIT
PANEL
PWB UNIT
PRINTER
PWB UNIT
PRINTER
UNIT
POWER SUPPLY
UNIT

FO-4650U
[2] Wiring diagram
4 – 2
ROLLER
SENSOR
2
M2
POLYGON
MOTOR
PWB-G
TONER EMPTY
PWB
PWB-D
LASER DIODE
DRIVE PWB
TH1
THERMISTOR
PS1
PAPER TAKE-UP
SENSOR SWITCH
SL1
PAPER TAKE-UP
SOLENOID
PS3
PAPER EXIT
SENSOR
PS5B
PAPER SIZE
SENSOR
HV1
HIGH
VOLTAGE PWB
UNIT
PE1
PAPER
EMPTY
SENSOR
2ND
TRANSPORT
PWB
SL2
4
4
7 2
2 2 3
4
11
M1
PRINTER
MOTOR
4
13
CN5
CN2
CN10
CN3 CN8 CN14 CN4
CN15 CN9 CN6
CN13 CN11
PRINTER PWB
2
2
CN7
TX
MOTOR CIS
SENSOR
10
4
M3
FAN
MOTOR
S2
INTERLOCK
SWITCH
2
TS1
THERMOSTAT
H1
HEATER
LAMP
11
1
12
OPERATION
PANEL
PWB
14
2
2 2
SPEAKER
8
3
TEL LINE
CN1
CNTXM CNCIS CNSP
CNLIU
CNSTP CNSEN
CNPNCNPW
POWER SUPPLY
UNIT
CONTROL PWB
LIU PWB
DOCUMENT
SENSOR
FRONT
SENSOR
VERIFICATION
STAMP
COG
24
2
CNPRT
30
2
9
8
CN2
CN1
CN5
CN4 CN3 CN2
PS5A
TRAY COVER
SENSOR
2
2
PS4
PAPER OUT
SENSOR 2
SW
FO-47UC
PAPER
CASSETTE
(OPTION)
CN4 CN1
5

FO-4650U
[3] Point- to-point diagram and connector signal name
4 – 3
CNSTP
VSTP /STPON VSTP
/STPON
1 21
2
CNSP
SP+ SP– SP+
SP–
1 21
2
CNSEN
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
/FRTS DG /ORGS DG /B4FRS DG ROLSNS DG
/FRTS DG /ORGS DG /B4FRS DG ROLSNS DG
CNCIS
1 2 3 4 5 6 7 8 9 10
1 2 3 4 5 6 7 8 9 10
SIG GND VDD GND GND SI GND CLK GLED VLED
SIG GND VDD GND GND SI GND CLK GLED VLED
CNTXM
1 2 3 4
1 2 3 4
TMA /TMA TMB /TMB
TMA /TMA TMB /TMB
LIU PWB
CNLIUCNLIU RXIN
TXOUT CI EXHS DPON CML +5V DG +24VA
RXIN TXOUT CI EXHS DPON CML +5V DG +24VA
E–RLY (N.C.) DPMUTE (N.C.) EXTSI (N.C.)
1 2 3 4 5 6 7 8 9
1 2 3 4 5 6 7 8 9 10 11 12
OPERATION PANEL PWB
CNPN CNPN
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24
LD7 E LD6 R/W LEDEN2 RS LEDEN1 /SEN6 LD2 /SEN5 LD3 /SEN4 LD1 /SEN3 LD4 /SEN2 LD0 /SEN1 LD5 /SEN0 +5V DG +5V DG
LD7 E LD6 R/W LEDEN2 RS LEDEN1 /SEN6 LD2 /SEN5 LD3 /SEN4 LD1 /SEN3 LD4 /SEN2 LD0 /SEN1 LD5 /SEN0 +5V DG +5V DG
COG
(LCD)
POWER
SUPPLY
PWB
PRINTER
CONTROL
PWB
CN10
/PS1 DG 1
2
CN15
+5V
TONER LEVEL /TONER LED DG
PWB-G TONER EMPTY SENSOR
PS1 PAPER TAKE-UP SENSOR
PS5A TRAY COVER SENSOR PS5B
PAPER SIZE SENSOR
1 2 3 4
CN7 CN1
24V MAIN MG DG 5V MAIN
HEATER ON FAN FAN LOCK H RELAY OFF
24V MAIN MG DG 5V MAIN
HEATER ON FAN FAN LOCK H RELAY OFF
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
CN1
M2 POLYGON MOTOR
CN9
1 2 3 4 5
N.C +24V MG +5V
POLYGON CTL
PWB-D LASER DIODE DRIVE PWB
CN5
1 2 3 4 5 6 7
7 6 5 4 3 2 1
/S SCAN CD LD APC2 LD APC1 DG /L DATA +5V
/S SCAN CD LD APC2 LD APC1 DG /L DATA +5V
HV1 HIGH VOLTAGE PWB UNIT
CN4
CN1 CN2
1 2 3 4 5 6 7 8 9 10 11
11 10 9 8 7 6 5 4 3 2 1
+5V HV C HL T VR T REM T MON B MON B VR C REM C MON MG +24V
+5V HV C HL T VR T REM T MON B MON B VR C REM C MON MG +24V
SL1 TRAY PAPER TAKE-UP SOLENOID
2ND. CASSETTE PWB FO-47UC (OPTION)
CN11
1 2 3 4 5 6 7 8 9 10 11 12 13
1 2 3 4 5 6 7 8 9 10 11 12 13
+24V /FEED2 PICK3 +5V DG SIZE20 SIZE21 /UNIT P EMP2 CHECK2 /2ND:3RD /M3 ON M3CLK
+24V /FEED2 PICK3 +5V DG SIZE20 SIZE21 /UNIT P EMP2
CHECK2 (N.C.) /2ND:3RD /M3 ON M3CLK
CN3 CN8
1 2+24V
/FEED1
M1 PRINTER MOTOR
CN6
1 2 3 4
MA /MA MB /MB
PS4 P-OUT SENSOR TRAY
CN13
1 2 3 4
PS4 DG P EMP1 DG
PC3 PAPER EXIT SENSOR
1 2 3
ANODE (PS3) DG PS3
CN2 CN3
TS1 THERMOSTAT
1 2 3
HEATER L GND HEATER N
H1 HEATER LAMP
1 2
TH1 THERMISTER
THERMISTER +5V
THERMISTER +5V 1
2
CN2
S2 INTERLOCK SWITCH M3 FAN MOTOR
1 2+24V
MAIN
CN4
1 2 3
MG FAN FAN LOCK
1 2 3 4 5 6 7 8 9 10 11 12
1 2 3 4 5 6 7 8 9 10 11 12
CN5 CNPW
NC NC NC NC PDG /RESET PDG PDG PDG /HSYNC /EPRDY /PRRDY /TOD /ETBSY /STS /CMD /CTBSY /PRINT /SRCLK PDG PDG /VIDEO +5VP PDG +5VP PDG +5VP /CPRDY +5VP /TEST
DG DG DG DG DG /RESET DG DG DG /HSYNC /EPRDY /PRRDY /TOD /ETBSY /STS /CMD /CTBSY /PRINT /SRCLK DG DG /VIDEO +5V DG +5V DG +5V /CPRDY +5V /TEST
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
CNPRT
CNAC
1 2 3
AC-L GND AC-N
AC CORD
CN14
MF SIZE DG DG TRAY SW
1 2 3 4
+24V SUB MG MG MG +24V MAIN +24V MAIN +5V SUB DG DG DG +5V MAIN +5V MAIN
+24V SUB MG MG MG +24V MAIN +24V MAIN +5V SUB DG DG DG +5V MAIN +5V MAIN
DOCUMENT SENSOR FRONT SENSOR B4 FRONT SENSOR ROLLER SENSOR
CIS SENSOR
SPEAKER TX MOTOR
VERIFICATION STAMP FO-45VS
(OPTION)
CONTROL PWB
1/2
PE1 PAPER EMPTY SENSOR

FO-4650U
5 – 1
CHAPTER 5. CIRCUIT DESCRIPTION
[1] Circuit description
Refer to the service manual of FO-4700U/FO-47UC
[2] Circuit description of Control PWB
Refer to the service manual of FO-4700U/FO-47UC
[3] Circuit description of LIU PWB
Refer to the service manual of FO-4700U/FO-47UC
[4] Circuit description of Operation PWB
Refer to the service manual of FO-4700U/FO-47UC
[5] Circuit description of Power Supply PWB
Refer to the service manual of FO-4700U/FO-47UC

FO-4650U
1
2 6
4
3
5
BDEFG
I
HCA
BDEFG
I
HCA
1
2
6
4
3
5
/DACK0
IC27
SH7021
CPU SH-1 (MASK)
65 66 67 68 74 97 99
100
98 95 96 76 75 69 71 72 64 62 61 60 58 94 93 91 90 89 87 86 85 84 83 79 78 77 13
R256 4.7K
C230 2200P
NMI
12
N.M.
14
38 63 73 80 88
4
15 24 32 41 50 59 70 81 82 92
45 44 43 42 40 39 37 36 35 34 33 31 30 29 28 27 26 25 23 22 21 20 19 18 17 16 14 12 11 10 9 8 7 6 5 3 2 1
MA21 MA20 MA19 MA18 MA17 MA16 MA15 MA14 MA13 MA12 MA11 MA10
MA9 MA8 MA7 MA6 MA5 MA4 MA3 MA2 MA1
MD15 MD14 MD13 MD12 MD11 MD10
MD9 MD8 MD7 MD6 MD5 MD4 MD3 MD2 MD1 MD0
46 47 48 49 51 52 53 54 57 55 56
15 16 28 27 26 25 24 23 20 19 18 17 14 31 30 13 29 11 12 32
41 40 39 38 36 35 34 33 10 9 8 7 5 4 3 2 1 6 21 42 37 22
MA10 MA9 MA8 MA7 MA6 MA5 MA4 MA3 MA2 MA1
PA9/IRQOUT
MA0
MD15 MD14 MD13 MD12 MD11 MD10
MD8 MD7 MD6 MD5 MD4 MD3 MD2 MD1 MD0
1 2
33 34 35 36 37 38 39 40 41
3 4 5 6 7 8
10 42
30 28 26 24 21 19 17 15 29 27 25 23 20 18 16 14 13 11 32
MA17 MA16 MA15 MA14 MA13 MA12 MA11 MA10 MA9 MA8
MD14 MD13 MD12 MD11 MD10
MD9 MD8 MD7 MD6 MD5 MD4 MD3 MD2 MD1 MD0
9
22 12 31
12
L101
0
7 6 5 1
3 2 8 4VBAT
14
457
6
14
910 7
8
14
12 13 7
11
/INT4 /INT6 /INT7
+5V
R314 4.7K
R315 4.7K
C420
/DREQ0
/DACK1
/DREQ1
+5V R305
4.7K N.M.
DG
DG
C232 2200P
C231 2200P
DG DG DG +5V
R257 4.7K
R258 4.7K
/SRCLKF
/STS
/CMDF
DG DG
C238 2200P
C229 2200P /RESET
/RESET2
CLKF
TP1 +5V
R373 100 R254 100 R255 100
+5V
R301 4.7K
3
2
1
2
1
C201 N.M.
L104 0 L103 10
DG
1 2
7DG
DG
IC26A
74HC08 TP2
DG
C227 2200P
C236
20P
C235
27P
DG
X5 +5V
R416
4.7K
R307
560
12
19.6608MHz
BZOUT
DIR
PCBUSY R260
R415 TP143
TP140
DG
R414
R418
N.M. N.M.
R302 0
R261 N.M.
TP4 TP5
TP6 R411
470
R412 470 R413
270
R300
0
/DPON
DPMUTE E-RLY
SPMUTE CML BZCONT GAINC TXMUTE
+5V
R310
4.7K
DG
+5V
C202
0.1
C241 0.1
C237 0.1
C234 0.1
C228 0.1
C233
0.1
DG
DACK0 DREQ0 DACK1 NMI IRQ4 IRQ6 IRQ7 SCK1 RXD1 TXD1 RES WDTOVF CK EXTAL XTAL PA11 PA10 PA8/BREQ PA7/BACK PB9 PB8 PB7 PB6 PB5 PB4 PB3 PB2 PB1 PB0 MD2 MD1 MD0 VCC VCC VSS DACK0DACK0 DREQ1/1RQ3 VCC VCC VCC VCC VSS VSS VSS VSS VSS VSS VSS VSS VSS VSS
A21 A20 A19 A18 A17 A16 A15 A14 A13 A12 A11 A10
A9
AD15
AD9 AD8 AD7 AD6 AD5 AD4 AD3 AD2 AD1 AD0 CS0
CS1/CASH
CS2
CS3/CASL
CS4
CS5/RAS
CS6
WAIT/CS7
RD
WRL
WRH
A8 A7 A6 A5 A4 A3 A2 A1 A0
AD14 AD13 AD12 AD11 AD10
RA11 SHORT RA12 SHORT RA13 SHORT RA8 SHORT
R262 0 R263 0
TP7
TP10 TP9TP9
TP11
TP12
/MCASH R424
33 /CS2
/MCASL
/MRAS R425
0/CS6
/WAIT
+5V
R316
4.7K
R319 10
R317 0
R318 10
DG
C240
C242
10P
C243
10P
N.M.
/MRD
/MWRL
/MWRH
RA10 SHORT
RA7 SHORT RA6 SHORT RA5 SHORT
+5V IC26B
74HC08
C226
0.1
DG
IC26C
74HC08
IC26D
74HC08
RTCDT
RTCCK
RTCCE
RTCIO R326N.M.
DG +5V
R380
10K
R325
4.7K
+5V
R324 10K
DG
C245
0.1
C278
12P
C279
18P
X6
32.768KHz
2
1
IC30
SM8578BV
REAL TIME CLOCK
DATA
CLK
CE
INTN
XTXT
XTN
VCC
VSS
/MRAS /MCASL /MCASH /MWRL /MRD
R220 150 R216 150 R217 150 R219 150 R218 150
MD9
+5V
C179
0.1
DG
C180
0.1
C181
0.1
IC16
HY5118164 or MSM5118165
16Mbit DRAM
NC NC A9 A8 A7 A6 A5 A4 A3 A2 A1 A0 /RAS /LCAS /UCAS /WE /OE NC NC NC
I/O15 I/O14 I/O13 I/O12 I/O11 I/O10
I/O9 I/O8 I/O7 I/O6 I/O5 I/O4 I/O3 I/O2 I/O1 I/O0
VCC VCC VCC
VSS VSS VSS +5V
C141
N.M.
DG DG
C142
0.1
MA7 MA6 MA5 MA4 MA3 MA2 MA1 MA21 MA18 MA19
R175
0
MD15
/MRD
/ROMCS
C140
N.M.
DG
MA[21:0]
MD[15:0]
IC4
27C160
16Mbit EPROM
A18 A17 A16 A15 A14 A13 A12 A11 A10 A9 A8 A7 A6 A5 A4 A3 A2 A1 A0 A19 VCC VSS VSS
Q15A-1
Q14 Q13 Q12 Q11 Q10
Q9 Q8 Q7 Q6 Q5 Q4 Q3 Q2 Q1 Q0
/G
/E
/BYTEVPP
TP8
RA9 SHORT
(6-2F) (6-2F) (6-2F) (6-2F)
(6-2C)
(8-6E)
(6-2C) (12-5E) (14-3E)
(*1)
(2-3E)
(6-2C)
(8-6E)
(16-3B)
(*1) : (5-3E)
(6-1C)
(8-6E)
(10-2B)
(15-3F)
(16-4B)
(4-2H)
(15-3F)
(15-3H)
(9-2A)
(14-3C) (14-3C)
(4-2H)
(14-3C)
(4-3E) (4-4A) (4-6B)
(6-2C)
(1-4D) (1-4D) (1-5D)(6-1F) (6-2A)(6-2C) (6-1F) (*2)
(*2) (*2)
(*2) : /MRD : (1-4D)(1-4H)(2-1G)(2-4F)(3-3B)(6-4A)(8-6D)(13-4F)(15-4D) /MWRL : (1-4D)(2-1G)(6-2A)(13-4F) /MWRH : (2-3G)(3-3B)(6-3A)(8-6D)(9-5D)(13-4F)(15-4D)
(7-3H) (7-3H) (7-3H) (7-3H)
(1-2D) (1-2D) (1-2D) (1-2D) (1-2D) (1-2D)
(6-4F)
(*3) (*3)
(*3) : MA : (2-5D)(3-4B)(6-5C)(8-5A)(9-6D)(13-4B)(15-3A)(15-3E)(15-4F)(15-4H) MD : (2-5D)(3-4B)(5-6E)(6-4C)(8-5A)(9-5A)(13-4B)(15-4A)(15-4E)(16-5G)(16-6B)
(12-4E)
CHAPTER 6. CIRCUIT SCHEMATICS AND PARTS LAYOUT
[1] Control PWB circuit 1/16
CPU & DRAM& ROM block
6 – 1

FO-4650U
1
2 6
4
3
5
BDEFG
I
HCA
1
2 6
4
3
5
BDEFG
I
HCA
2
31
3
28
4
25 23 26 27
5 6 7 8 9
10 11 12 24 29
21 20 19 18 17 15 14 13
MA15 MA14 MA13 MA12 MA11 MA10 MA9 MA8 MA7 MA6
MD15 MD14 MD13 MD12 MD11 MD10
MD9 MD8
22 30
/MRD /MWRH
1 32 16
MA17 MA16
2
31
3
28
4
25 23 26 27
5 6 7 8 9
10 11 12 24 29
21 20 19 18 17 15 14 13
MA15 MA14 MA13 MA12 MA11 MA10 MA9 MA8 MA7 MA6
MD7 MD6
MD5 MD4 MD3 MD2 MD1 MD0
22 30
MA4 MA2 MA1
/MRD /MWRL
1 32 16
MA17 MA16
1 2
3
1
2
BT1
CR2450
D141
1SS355 R329
5.6K
D142
HRW0502A
+5V
DG
14
9 7
14 11
7
14 13
7
8
10 12
IC34D
74HC14
IC34E
74HC14
IC34F
74HC14
DG
DG
D5
DAP202U
R385
4.7K
R383
4.7K
R384
4.7K
VBAT +24VA +5V
C13 33/16
DG
+5V+5V
DG
+5V
DG
DG
DG
+5V
DG
+5V
+5V +5V
/MANRES
R408 10K
C273
0.1
14
5
7
IC34C
74HC14
6
C274
1
1 2
3
5
4
IC37
PST596
SYSTEM RESET
M/R SUB GND
VCC
VOUT
R377 1K 14
1 7
2
IC34A
74HC14
R381 10K
R382
14
3 74
R376 4.7K
R375
N.M.
BC BC
/RESET
TCS1
TCS2
Q107 Q106
DTA114EK
IC34B
74HC14
MD[15:0]
MA[21:0]
MA4 MA3 MA2 MA1 MA5
TCS1
/SRAMCS
VBAT
DG
C192 0.1
DG
C191
N.M.
R245
0
IC21
BS64LV1024SC-70
1Mbit SRAM
A16 A15 A14 A13 A12 A11 A10 A9 A8 A7 A6 A5 A4 A3 A2 A1 A0 OE W S1 S2
DQ8 DQ7 DQ6 DQ5 DQ4 DQ3 DQ2 DQ1
NC
VCC
GND
MA5 MA3
DG
TCS1 C402
N.M.
VBAT
DG
C403 0.1
IC36
BS64LV1024SC-70
1Mbit SRAM
A16 A15 A14 A13 A12 A11 A10 A9 A8 A7 A6 A5 A4 A3 A2 A1 A0 OE W S1 S2
DQ8 DQ7 DQ6 DQ5 DQ4 DQ3 DQ2 DQ1
NC
VCC
GND
(8-6E)
(1-6H) (1-6H)
(6-5F)
(1-2D) (1-1D)
(2-3E)
(1-4A) (2-1G)(2-3G) (15-4D)
(1-2D) (1-2D)
(2-3E)
Reset & SRAM block 2/16
6 – 2

FO-4650U
1
2 6
4
3
5
BDEFG
I
HCA
BDEFG
I
HCA
1
2
6
4
3
5
64 78 79 82 73 95 96 56 57 58 59 60
8 9
10 11 12 13 14 15 54 55 53 52 70 71 67 65
22
97
92
89
81
80
77
66
16
7
6
50
23
62
72
91
93
94
76
75
61
12
R276 10K
R277 10K
R288 10K
R274 10K
R275 10K
MA5 R337 10
R338 10 R339 10 R340 10 R341 10
MA4 MA3 MA2 MA1
R280 10 R281 10 R282 10 R283 10 R284 10
MD15 MD14 MD13 MD12 MD11 MD10 MD9 MD8
R332 10 R331 10 R333 10 R334 10
5
4
3
2
1
100
63
38
39
40
36
85
25
83
26
74
84
86
90
68
69
12
46 17 21 30 43 47 35 87 98 37 45 49 18 48 41 42 51 44 88 34 99 24 19 20 27 28 29 31 32 33
C256 0.1
TP19 TP18
MA[21:0]
MD[15:0]
/MDMCS /MRD /MWRH /MDMINT /MDMRST
R285 10 R286 10 R287 10
+5V
R273 10K
TP13
TP14
TP15
TP16 TP17
C255
N.M. DG
DG DGDGDG
R336
47K C253
2200P R270
0C254
N.M.
MAG
+5V
TP22
TP23
TP24
TP25
DG DG
C213 10P C218
10P
R343
10 R345
10 R346
10K
R271 390
R272
100
X4
38.00053MHz
C259 1C6
22/25
MAG
R347
20
R279
0
+5V
DG DG MAG
R278
0
SIGRX
AGD
SIGTX
MAG
C257 390P
C258
0.1
C5 10/25
R342
47.5K
TP20 TP21
+5V +5V
L102
0
C217
N.M.
C216
1
C215
1
C219
1
C214
N.M.
DG
MAG
R335
0+5V
12
L105
0
IC24
R144EFXL
14400bps FAX MODEM
RTS
GP13
+5VA
XTLO
CTS TXD DCLK DCLKI RXD RLSD RS4 RS3 RS2 RS1 RS0 D7 D6 D5 D4 D3 D2 D1 D0 CS READ
WRITE
IRQ XCLK(12M) YCLK(6M) PORI EN85
0VA 0VA 0VA 0VA 0VA
ADOUT
ADIN
RCVO
RCVI RXIN
AOUT
RAMPIN
ADG
NC NC NC
TXOUT
DAOUT
DAIN
SWGAINO
SWGAINI
NC NC NC NC NC NC NC NC
XTLI
EYEY
EYEX
EYECLKX
SYNCIN2
SYNCIN1
EYESYNC
ECLKIN1
EYECLK
BYPASS
TXLOSS1
TXLOSS2
TXLOSS3
GP11
GP02
GP03
GP04
GP05
GP06
GP07
GP16
GP17
GP19
GP20
GP21
+5VD1
+5VD1
0VD1
0VD1
0VD2
0VD2
0VD2
0VD2
0VD2
0VD2
0VD2
0VD2
0VD2
0VD2
+5VD2
(1-6H) (1-6H)
(6-4G)
(1-2D) (1-1D)
(6-4G) (6-4G)
(4-5A) (4-3A) (4-3A)
Modem block 1 3/16
6 – 3

FO-4650U
1
2 6
4
3
5
BDEFG
I
HCA
BDEFG
I
HCA
1
2
6
4
3
5
–
+–
+
–
+
–
+
+ –
0 1
5 3
4
TXMUTE
+5V
3 21
4
11
5 67
4
11
10
98
4
11
K A0
1
14 13
12
0 1
2 115
CB
CB
CB
VDD
INH
VEE VSS
4
C9
47/16
DG R365
100K
C269
330P
R360
150K
C7
4.7/50
C8
1/50
R251
20K
C223
4700P
R297
1K
BZOUT
VOLA VOLB
VOLC
SPMUTE
SP–
SP+
VREF
SIGTX
R252
10K
R417
0C224
0.1
DG
IC25A
HCF4053
C267
1
R293
10K
+5V
R354
17.4K(F)
R355
10K
C264
1
DG DG DG
+24VA
IC31A
NJM2902M
C263
680P
R352
3.3K
R430
0R431
51K
R432
10K
+5V
C424
1
DG DG DG
IC31B
NJM2902M
+24VA
R433
51K
C425
330P
R434
3.3K
TXOUT
DG
DG
+24VA
IC31C
NJM2902M
R298
33K
R253
33K
+5V
DG
C225
1
VREF
DG
DG
+5V
616
7 8
IC25D
HCF4053
C22
0.1
+5V
GAINC
R299
10K
C261
1000P
R349
86.6K(F)
+24VA
R348
3K
D143
1SS355
+5V
SIGRX AGD R350
0DG
14 4
11
12 13
IC31D
NJM2902M
C260
0.1/50 11
IC25C
HCF4053
R292
68K
R290
68K
R291
0
R289
C220
0.1(K)
N.M. TP27
TP26
EXTSIG
RXIN
R295
20K
10
IC25B
HCF4053
+5V
R294 10K BZCONT
C222
0.1(K)
R367
10K
R368
470
R369
1K
R370
1K
R371
33K
DG
DG
DG
DG
Q103
DTC114EK
Q104
DTC114EK
Q105
DTC114EK
DG DG DG +5V
R364
10K
+5V
2 35
6
17
8
IC33
NJM2113M
DGDG
R296
20K C200
0.01
C270
0.1 R363
3K
9
E
E
E
(1-2A)
(3-3G)
(1-2A)
(3-4G) (3-4G)
(14-3C)
(14-4C)
(1-3A)
(14-4C)
(14-2A) (14-2A) (1-3A) (6-3G) (6-3G) (7-1E) (1-4A)
R351
86.6K
DG
R436
3.3K
Modem block 2 4/16
6 – 4

FO-4650U
1
2 6
4
3
5
BDEFG
I
HCA
BDEFG
I
HCA
1
2
6
4
3
5
–
+
+5VR
+5VR
D100
DA204K
+5VR RAG RAG
B
C
E
Q101
2SA1037K
R104
2.2K R103
03
2
8 6 5 1
4
C119
0.1
R125
1.8K
14 5
43
7
14 5
43
7
AO
RAG
NC NC NC
IC100
AD8051
DG
C100 7114
13
2
+5V
R126
3K
DG
RAG
R101
R102
0
IC1A
GAIN
R407
+5V
IC1B
IC1C
C118
18P
D120
DA204K
+5VR RAG
AIN
R124
0
14
1 72
IC5A
74HC04
14
3 74
IC5B
74HC04
14
5 76
IC5C
74HC04
23 26 27 28 11 12 13 14 15 16 18 19 20
1 2 3 4 5 6 7 8
AO13 AO12 AO11 AO10 AO9 AO8 AO7 AO6 AO5 AO4 AO3 AO2 AO1
MD7 MD6 MD5 MD4 MD3 MD2 MD1 MD0
AO[13:1] MD[15:0]
+5V
6
IC101C
74HCU04
8
IC101D
74HCU04
10
IC101E
74HCU04
12
IC101F
74HCU04
14
9 78
IC5D
74HC04
14 11
710
IC5E
74HC04
29 22 21 32 35 25 33 39 40
/LCCS /LCRD /LCWR /RESET2
IC1D
DG DG
C126
18P C156
15P
X1
24.32MHz
12
C138
1M
DG
R200
1K
+5V
1 7
2
14
IC101A
74HCU04
R199
0
DG
+5V
14
3 7
4
IC101B
74HCU04
C155
0.1
R139
0R400
0
LCINT
AIN
R196
0
+5V
TP39
DG
C150
N.M.
R190
100 R191
100
14 12
10 11
7
14
5 7
14
9 7
14 11
7
14 13
7
DG N.M.
N.M.
+5V
DG
DG
41 45 31 30 37 38 42 44 34 10 24 56 9 17 49 64 43 36 46
N.M.
C187 N.M.
R141
0
DG
RAG
DG
+5V
+5VR
DG
RAG
C103
0.1 C120
0.1 C122
0.1
C3
47/16
C124
0.1 C4
47/16
R195
0
D3 D2 D1 D0 CS RD WR RESET REF CLKIN SAMP/LININT AIN TEMP
ATAPH
ATAPL
TRIG
ICLK
DALRL
DAHRL
DAHRH
DALRH
TEST
DVDD DVDD DVDD
DGND DGND DGND DGND
AVDD
AGND AGND
R105
0
C121
0.1
R140
0
C112
0.1
R137
0
R131
0
RAG RAG
+5VR
+5V
RAG DG
48 50 51 52 53 54 55 63 61 60 62
14 13
7
C125 0.01 C123 0.01
C151 0
R134 0
R127
R130
N.M.
R128
0
R135
R132
R129
0
TP30 TP31 TP32 TP33 TP34 TP35 TP36 TP37
TP38
+5V RAG
SRVID
R402
10
SCCLK1
STVD
+5V
DG
C116
0.1
IC5F
74HC04
R107
33
R106
270
CISSI
CISCLK
+5V
R110
10K R108
10K +5VR
R133
0
PD7/SD
PD6/SDCK
PD5/SDE
PD4/PP4 PD3/PP3 PD2/PP2 PD1/PP1 PD0/PP0
SH
CLK1 CLK2
RS
59 57 58 47
TP28 TP29
MTSTART
IC6
LC82103
IMAGE SIGNAL PROCESSOR
A12 A11 A10 A9 A8 A7 A6 A5 A4 A3 A2 A1 A0 D7 D6 D5 D4
MTP/PP7
DACK/PP5
DREQ/PP6
12
7
NC
(14-3A)
(7-5E)
(5-2E)
(7-5D) (1-6H)
(7-5E) (7-5E) (7-5E) (1-4A) (7-5E)
(5-5D)
(7-5E) (8-6E) (10-2B) (8-6E) (14-3B) (14-3B)
Reading block 5/16
6 – 5

FO-4650U
1
2 6
4
3
5
BDEFG
I
HCA
BDEFG
I
HCA
1
2
6
4
3
5
58 59 63 64 48 49 50 51
69 70 71 72 73
89 88 87
106
MD7 MD6 MD5 MD4 MD3 MD2 MD1 MD0
52 53 65 66 67 68 74
MD11 MD10 MD9 MD8 MD15 MD14 MD13 MD12
14
1 2
7
+5V
R428
0
/MRD
IC38A
N.M.
14
4 5
7
+5V
R426
150
/MWRH
IC38B
N.M.
14
12 13
7
+5V
R427
0
/MWRL
IC38D
N.M.
/CS6
R428
100P
R243
0
85 86 78 77
DG
3
6
DG
11
DG DG TP7
/CS2
/CS6 /INT4 /INT7
C198
2200P
C186
C152
N.M.
R236
0
14
9
10
7
IC38C
N.M.
60
143
76
144
+5V
DG DG
8
C421
CLKF CK16M /RESET2
DG
DG
XRD XWRH XWRL XWR XCS2 XCS6 XINT4 XINT7 SHCK TEST
156 157 112 113 90 93 92 80 79 91
CK16M XRESET
XEXINT1 XEXINT0
FLSZ0 FLSZ1
XDREQ0
XDACK0
XDREQ1
XDACK1
XRAS
XWAIT
39 54 55 56 57
96 102 98 97 99 118 117 116 119 125 124 123 121 159
MA8 MA7 MA6 MA5 MA4
MD[15:0]
MA3 MA2 MA1 MA13
/PCINT
R406
10K
R405
R248
10K R233
10K
R181
10K
R188
10K
158 122
R225
270
R224
270
C183
1000P
114 115
TP46
TP47 TP48
TP49
TP TP TP TP
TP51
+5V
DG
DG
+5V
N.M.
N.M.
C146
/ROMCS
/FLOPT
A8 A7 A6 A5 A4 A3 A2 A1 A0 D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
XPGMCS
XEXCS
XFLSTD
XFLOPT
XMDMCS
XMDMINT
XMDMRST
XEXHS
XRHS
XCI
HSDTCT
DPON
TELMUTE2
MPXB
MPXC
TXMUTE
IOP1 IOP0
84 83 82 81 35 36 37 38
111 107 108 109 110 94 95
MA21 MA20 MA19 MA18 MA12 MA11 MA10 MA9
MA[21:0]
TP40
TP41
TP42
TP43 TP44 TP45
FLBK4 FLBK2 FLBK1
/GABCS
/SRAMCS
IC17A
LZ9FJ59
GATE ARRAY (A)
A21 A20 A19 A18 A12 A11 A10 A9
XFLBSY
FLBK4 FLBK3 FLBK2 FLBK1
XGABCS
XSRAMCS
C185
IC40A
N.M. N.M.
N.M.
R409 10K
R250 4.7K
R246 10K
R247 10K
R222 10K
IC40B
N.M.
5 3
1
DG
+5V
C423
N.M.
NCVCC
GND
/FLBSY
R234
C422
R249
10K
DG
+5V
R429
0
DG
42
+5V
C197
2200P
DG
/MDMCS
/MDMINT
/MDMRST
/EXHS
/CI
VOLB
VOLC
CDCMSK
R239
10K R240
10K /DREQ0
/DACK0
/DREQ1
/DACK1
/MRAS
/WAIT
(1-6H)
(1-6H)
(1-2D)
(1-1D)
(1-2D) (1-2D)
(1-2D) (1-2D)
(1-5A) (1-5A) (1-4A)
(9-4D)
(1-4A)
(1-5A) (1-6A) (1-5A) (1-5A) (1-2D) (1-2D)
(15-3F)
(4-2H) (4-2H) (9-2F) (14-4C) (3-3B) (3-3B) (3-2B) (14-3C)
(15-2D) (1-4H) (2-3F) (8-6E) (15-2B) (15-2D) (15-2B) (15-4D)
Gate array (A) block 1 6/16
6 – 6

FO-4650U
1
2 6
4
3
5
BDEFG
I
HCA
BDEFG
I
HCA
1
2
6
4
3
5
105 104 103
–
+
–
+
136 137 138 139 140 126 127 147
/D9001RW
AD7 AD6 AD5 AD4 AD3 AD2 AD1
135 145
/D6004WR /D6004ALE /D9001CS /D9001WR /D6004RD
148 149 150 151 152
R223 R229 R228 R227 R226 R230
N.M.
N.M. 146
AD0
13 12 10
9
26 25 24 23 22 19 18 17 16 1
3 4 154 153 20 142 100 11 21 120
AO12 AO11 AO10 AO9 AO8 AO7 AO2 AO1 AO13 AO6 AO5 AO4 AO3
134 141 160 101 62 2 155 28 40 61 75
R189
4.7K
R184
4.7K
C149
0.1
C153
0.1
C196
0.1
C182
0.1
8
15 14
7 6 5
131
47 45 41 42 43 33 29 30 27
/LCCS /LCWR /LCRD LCINT MTSTART GAIN
132 133 128 130 129
34 46 44 31 32
R198
4.7K R197
4.7K
C154
2200P
R242 R241
N.M.
/CDCCS1
/CDCDRQ
/CDCINT
/QMCS1
/QMWR
/QMRD
QMPDRQ
/QMPDAK
QMCDRQ
/QMCDAK
TXPA
TXA1 TXA0
TXPB
TXB1 TXB0
CRNT
RTCDT
RTCCK RTCCE
RTCIO
STPON LEDON
R147
330P
C187
C188
N.M.
R194
0
R238 0 R237 0 R193 0 R192 0
RA3
RA4
C145 R179
5.6K
R410
270
/FRTS
/ORGS
R119
270 R122
10K
C114
2200P
DG
+5V
+5V
DG
R121
270 R118
10K
C113
2200P
DG
DG
R120
3.3K
C115
0.1
R123
5.6K
C117
0.1
+5V
2 34
4
8
7
+5V
DG
DG
+5V
C148
0.1
IC11A
BA10393F
IC11B
BA10393F
6 5
8
1
R186
10K
R185
10K
+5V
+5V
/ROLSNS
/B4FRS
+5V
+5V
R182
270
R177
270 R183
10K
R178
10K
C144
2200P
DG DG
C143
2200P
PCDTCT
R235
10K
VOLA TP70
DG
+24V
R180 TP69
/D9001RW
AD(7:0)
AO[13:1]
DG
TP56
IC17B
LZ9FJ59
GATE ARRAY (A)
XLCCS XLCWR XLCRD LCINT MTSTART GAIN AO12 AO11 AO10 AO9 AO8 AO7 AO6 AO5 AO4 AO3 AO2 AO1 AO0 XD6004RD XD6004WR XD6004ALE XD9001CS XD9001WR XD9001RW AD7 AD6 AD5 AD4 AD3 AD2 AD1 AD0 PCDTCT FAXPCSL XB4FRS XFRSNS XORGSNS XROLSNS PRTSNS1 CDCMSK
XCDCCS
XCDCDRQ
XCDCINT
XQMCS1
XQMWR
XQMRD
QMPDRQ
XQMPDAK
QMCDRQ
XQMCDAK
TXPA
TXA1 TXA0
TXPB
TXB1 TXB0
CRNT
RTCDT
RTCCK RTCCE
RTCIO
PLG1ON PLG0ON
LEDON
VDD VDD VDD VDD
GND GND GND GND GND GND GND GND GND GND GND
+5V
TP52 TP53 TP54
DG
TP55
TP57 TP58
TP59 TP60 TP61 TP62 TP63 TP64 TP65 TP66 TP67 TP68
DG
+5V
DG
N.M.
N.M.
(9-2F)(9-5D) (8-6E) (8-6E) (16-4B) (16-4B)(16-3G) (16-4B)(16-3G) (16-3G) (16-3G) (16-3B) (16-4B)
(11-5B) (11-5B) (11-5B) (11-4B) (11-4B) (11-4B) (11-1B) (1-3E) (1-3E) (1-3E) (1-3E) (11-2E) (11-1E)
(5-3E) (5-3E) (5-3E)
(5-2E)
(5-5H)
(5-4A)
(16-6B)(5-6E)
(15-3H) (15-3H) (15-3H)
(15-3F) (15-3F) (15-3F)
(15-4F)(15-4H)
(15-2F)
(14-5A) (14-5B)
(14-5A) (14-5A)
(4-2H)
Gate array (A) block 2 7/16
6 – 7