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HP Color LaserJet Enterprise CP4020 Service Manual - Page 328

General circuit diagram 1 of 2, Solve problems

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Figure 3-45 General circuit diagram (1 of 2) 34 87654321 3 Control Panel J9 9 FP 5V SGND /FPCS FPCLK FPI FP 0 FP 3.3V SGND 87654321 J303 2 12 J304 Inter Connect Board PGND +12V J301 1 Power SW SW3 1 2 J84 12345 SW5 2 1 SW1 2 1 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 31 32 33 35 J45 1 2 FT2 2 1 D +12V GND LED_O N PWRSWON 5VC 5VB SGND ENGON /VDOEN CLEI CLEO SGND VDO32 /VDO32 VDO31 /VDO31 VDO42 /VDO42 VDO41 /VDO41 VDO12I /VDO12I VDO11I /VDO11I VD022 /VD022 VD021 /VD021 SGND /VCRST /TOPO SGND /BD4O /BD3O /BD2O /BD1O CAN_H CAN_L JLPWRON SGND AWAKE PWRON FDOORSNS SGND 10 11 12 13 14 15 1 2 3 4 5 6 7 12 8 9 16 J27S 17 18 19 20 21 22 23 24 25 21 26 27 28 29 30 31 32 33 34 35 M2 87654321 J123 14 13 12 11 10 9 8 7 6 5 4 3 2 1 J127 54321 J155 CT-5 SW2 21 J129 321 J152 35 J105 2 12 FT1 J61F J61M 21 654321 J603 1 TB502 TB501 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 J601 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 J140 87654321 321 J94L J94LH J94D SR1 J28 11 10 9 8 7 6 5 4 3 2 1 321 321 6 5 4 3 2 1 20 19 18 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 FSMFR /FSMFG /FSMDE C /FSMACC PGND PGND J13 M SL1 SL 21 21 J54D J54L J54DH +24VB 1TRSL 3.3V S J151 PGND PGND PGND +24VB +24VA +24VA +24VA TB406 TB405 TB404 TB403 TB402 TB401 321 321 +24VB +24VB J78D J78D H PREEXP 1 +5VB PREEXP 2 +5VB PREEXP 3 +5VB PREEXP 4 +5VB ITBLKSNS SGND 3.3VS POUTSN S SGND 3.3VS 11 10 9 8 7 6 5 4 3 2 1 J78L SR10 J44 LED 4 LED 3 LED 2 LED 1 SR4 J32 SR3 J31 SR2 J29 321 321 321 M1 M 654321 J92L J92LH J92D 321 J93L J93LH J93D 3 21 654321 54321 SGND DRMHP1 3.3V S SGND DRMHP2 3.3V S SGND DRMHP3 3.3V S SGND DRMHP4 +24VB PGND /BMACC /BMDE C /BMFG J14 J17 +24VA J150 5VB Power Supply Unit 5VB 24RMT PWRSWON 100V 200V 3.3V F 3.3V F IL101 IL201 SGND SGND C 3 2 1 1 2 3 PFCRMT ZEROX L N L N FSRD1 SGND /RLD FSR_CURRMS FSRSAFE1 INL_CURRMS FSRSAFE2 /FSRMSTOP 12 J604 12 J604A 24VB 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 J120 87654321 87654321 SR5 J48 +24VA CHK24V PGND TB201 TB202 4 3 21 J607 M4 M 21 4321 J161 M12 M 21 J63D J63DH J63L SOLD30 PGND DRMFR PWROF SW_LED WTMSNS SOLD31 /DRM2ACC SGND +24VB /DRM2DEC PSTYP100 321 3 21 J62L CT-3 J62DH J62D CT-3 PGND FAN3LK FAN3PWM J77DH J77D NPCLK SGND NPSD_RD 3 21 FM3 M3 M /DRM2FG ACH ACL HEATERC HEATER1 +24VA TCK H1 21 12 54321 +24VA J102 P81 1 2 PGND P80 PGND MD2 DRMFR /DRM1ACC MD0 J25F J25M 1 2 J12 B 10 9 8 7 6 5 4 3 2 1 10 9 8 7 6 5 4 3 2 1 MEDIA-SNS J2 7 21 A5 B7 1 2 3 4 J50LB 2 321 321 7654321 J350 17 16 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 J121 TH3 21 1 4 3 2 1 B7 A5 4321 10 9 8 7 6 5 4 3 2 1 NPSD_OUT 5VA /DRM1DEC /DRM1FG IOTT J50D J50L TB2 TP1 TB1 1 TP 2 J101 /NPRST NPSTART NPSL_DATA NPSL_EN J18 J15 +24VA +24VA SGND IOTR +3.3V N.C. J51DH J51L M6 M 654321 J352 7654321 8 7 6 5 4 3 21 8 7 6 5 4 3 2 1 NPLED PGND PGND J51D J64DH J64D PGND CHK24V 4321 J77L Registration Unit (Duplex model) J53D J53DH J53 L DRMKF R /DRM4ACC /DRM4DE C /DRM4FG +24VA +24VA J162 SGND 1 FSR TH3 2 FSLP1 3 FSLP2 4 SGND 5 3.3VS 6 J50D B SR14 7 21 J11 6 J351 5 4 3 J50LA 21 J50D A CL1 CL 21 RMCL PGND FSRSNS 7 2 24VB TOPI SGND 3.3V S 3.3V NPTRLED REFEED S 321 J23 SR20 J20 NPLED M5 M PGND DRMFR /DRM3ACC /DRM3DE C /DRM3FG J16 N.C. J160 54321 SGND 1 FSR TH2 2 SGND 3 FSR TH1 4 /FSRNE W 5 1 5 4 TH2 1 3 2 TH1 1 1 J10 SR15 2 2 321 21 10 9 8 7 6 5 4 3 2 1 10 9 8 7 6 5 4 3 2 1 SR22 J21 SGND 3.3V S J74D J74D H J74L Registration Unit (Simplex model) 1 2 FU1 A 10 9 321 321 SR8 J22 J75DH J75D MPTPEND SGND 3.3VS MPTSL 24VB 321 321 J75L J77LS 10 9 8 7 6 5 4 3 2 1 MEDIA-SNS 21 76 5 4 3 2 1 SR20 NPLED J23S J20S 10 9 8 7 6 5 4 3 2 1 J74LS 21 SL3 SL 21 J52D J52DH J52L 10 9 8 7 6 5 4 3 2 1 J131 12 11 10 9 8 7 6 5 4 3 2 1 J145 654321 J148 296 Chapter 3 Solve problems ENWW

Section	Page
Theory of operation	33
Basic operation	34
Sequence of operation	35
Engine-control system	36
DC controller	37
Solenoids	37
Clutches	38
Switches	38
Sensors	39
Motors	40
Fans	41
High-voltage power supply	42
Low-voltage power supply	44
Overcurrent/overvoltage protection	45
Safety	45
Voltage detection	45
Sleep (powersave) mode	45
Low-voltage power supply failure	45
Fuser control	46
Fuser temperature control	47
Fuser sleeve temperature protection	47
Failure detection	48
Fuser unit identification	49
Fuser unit life detection	49
Laser/scanner system	50
Laser/scanner failure	51
Protective-glass cleaners	51
Image-formation system	53
Image-formation process	55
Step 1: Pre-exposure	56
Step 2: Primary charging	56
Step 3: Laser-beam exposure	57
Step 4: Development	57
Step 5: Primary transfer	58
Step 6: Secondary transfer	58
Step 7: Separation	59
Step 8: Fusing	59
Step 9: ITB cleaning	60
Step 10: Drum cleaning	60
Print cartridge	60
Developing-roller engagement and disengagement	62
Intermediate transfer belt (ITB) unit	63
Primary-transfer-roller engagement and disengagement	64
ITB cleaning	66
Calibration	66
Color-misregistration control	67
Image-stabilization control	67
Pickup, feed, and delivery system	69
Pickup-and-feed unit	73
Cassette pickup	73
Cassette-presence detection	74
Cassette lift operation and cassette paper-presence detection	75
Cassette multiple-feed prevention	75
Multipurpose tray pickup	76
Paper feed	77
Skew-feed prevention	79
Paper detection	79
Feed speed control	80
Fusing and delivery unit	80
Loop control	81
Pressure-roller pressurization control	83
Duplexing unit (HP Color LaserJet CP4525dn, HP Color LaserJet CP4025dn, and HP Color LaserJet CP4525 ...	84
Duplexing reverse and feed control	84
Duplex print operation	85
Jam detection	87
Optional paper feeder	89
Motor control	91
Paper-feeder pickup and feed operation	92
Paper-size detection and cassette-presence detection	94
Paper-feeder cassette lift operation	95
Paper feeder jam detection	96
Removal and replacement	99
Introduction	100
Removal and replacement strategy	100
Electrostatic discharge	101
Required tools	101
Before performing service	102
After performing service	102
Post-service test	103
Print-quality test	103
Parts removal order	104
Customer self repair (CSR) components	106
Print cartridges	106
Toner-collection unit	108
Formatter PCA	110
Hard drive	111
Remove the hard drive	111
Memory DIMM	113
Remove the memory DIMM	113
Enable memory	114
Tray	116
Fuser	117
Feed and separation rollers (Trays 2-5)	118
Pickup roller (Tray 1)	119
Secondary transfer roller	122
Reinstall the transfer roller	123
Intermediate transfer belt (ITB)	124
External panels, covers, and doors	127
Identification and location	127
Upper-left cover	128
Power-supply cover	130
Left cover	131
Remove the left cover	131
Front-top cover	132
Remove the front-top cover	132
Rear-top cover	134
Remove the rear-top cover	134
Right-front cover	135
Remove the right-front cover	135
Reinstall the power button	136
Control-panel assembly	137
Remove the control-panel assembly	137
Front-door assembly	139
Remove the front-door assembly	139
Right-rear cover	142
Remove the right-rear cover	142
Rear cover	144
Remove the rear cover	144
Right-door assembly	145
Internal assemblies	150
Cassette feed guide	150
Secondary transfer assembly	151
Reinstall the secondary transfer assembly	152
Separation pad (Tray 1)	153
Remove the separation pad (Tray 1)	153
Registration density (RD) sensor assembly	156
Remove the RD sensor assembly	156
Registration assembly	160
Remove the registration assembly	161
Residual-toner-feed motor	165
Remove the residual-toner-feed motor	165
Residual-toner duct and feed assembly	166
Remove the residual-toner duct and feed assembly	166
Cartridge fan and environmental sensor	169
Remove the cartridge fan and environmental sensor	169
Toner-collection sensor and scanner-thermistor assembly	173
Remove the toner-collection sensor and scanner-thermistor assembly	173
Delivery fan	175
Remove the delivery fan	175
Delivery assembly	177
Remove the delivery assembly	177
Reinstall the delivery assembly	181
Duplex-drive assembly	183
Remove the duplex-drive assembly	183
Power-supply fan	184
Remove the power-supply fan	184
Interconnect board (ICB)	185
Remove the ICB	185
DC controller PCA only	187
Remove the DC controller PCA only	187
Low-voltage power supply (LVPS)	189
Remove the low-voltage power supply	189
DC controller PCA and tray	193
Remove the DC controller PCA and tray	193
High-voltage power supply lower (HVPS-D)	195
Remove the high-voltage power supply lower	195
Reinstall the high-voltage power supply lower	199
Developing-disengagement motor	200
Remove the developing-disengagement motor	200
Exhaust fan and fan duct	201
Remove the exhaust fan and fan duct	201
Reinstall the exhaust fan and fan duct	203
Pickup motor	204
Remove the pickup motor	204
Lifter-drive assembly	205
Remove the lifter-drive assembly	205
Lifter base assembly	207
Remove the lifter base assembly	207
Reinstall the lifter base assembly	208
Tray-pickup drive assembly	210
Remove the tray-pickup drive assembly	210
Tray-pickup assembly	212
Remove the tray-pickup assembly	212
Laser/scanner assembly (Y/M)	218
Remove the laser/scanner assembly (Y/M)	219
Laser/scanner assembly (C/Bk)	222
Remove the laser/scanner assembly (C/Bk)	223
Reinstall the protective glass cleaner (PGC) actuators	225
High-voltage power supply upper (HVPS-T)	228
Remove the high-voltage power supply upper	228
Reinstall the high-voltage power supply upper	230
Yellow, magenta, cyan, and black drum motors	231
Remove the yellow, magenta, cyan, and black drum motors	231
Fuser motor	232
Remove the fuser motor	233
ITB motor	234
Remove the ITB motor	234
Main-drive assembly	235
Remove the main-drive assembly	236
Reinstall the main-drive assembly	239
Fuser-drive assembly	243
Remove the fuser-drive assembly	244
Reinstall the fuser-drive assembly	247
Optional paper feeder assemblies (1 x 500-sheet and 3 x 500-sheet)	248
Front door (optional paper feeder)	248
Rear cover (optional paper feeder)	250
Right-front cover (optional paper feeder)	251
Right door (optional paper feeder)	252
Left cover (optional paper feeder)	254
Remove the left cover (optional paper feeder)	254
Right cover (optional paper feeder)	256
Remove the right cover (optional paper feeder)	256
Rear-right cover (optional paper feeder)	257
Remove the rear-right cover (optional paper feeder)	257
Pickup assembly (optional paper feeder)	258
Remove the pickup assembly (optional paper feeder)	258
Lifter assembly (optional paper feeder)	261
Remove the lifter assembly (optional paper feeder)	261
Lifter-drive assembly (optional paper feeder)	262
Remove the lifter-drive assembly (optional paper feeder)	262
Pickup motor assembly (optional paper feeder)	263
Remove the pickup motor (optional paper feeder) assembly	263
Controller PCA (optional paper feeder)	264
Remove the controller PCA (optional paper feeder)	264
Solve problems	265
Solve problems checklist	266
Menu map	268
Troubleshooting process	269
Determine the problem source	269
Pre-troubleshooting checklist	269
Troubleshooting flowchart	271
Power subsystem	272
Power-on checks	272
Power-on troubleshooting overview	272
Tools for troubleshooting	274
Individual component diagnostics	274
LED diagnostics	274
Understand lights on the formatter	274
HP Jetdirect LEDs	274
Heartbeat LED	275
Engine diagnostics	275
Defeating interlocks	275
Disable cartridge check	276
Engine-test button	276
Paper-path test	277
Manual sensor test (special-mode test)	278
A TOP (top of page) sensor	279
B and C loop sensors	280
D fuser delivery sensor	281
E duplex re-pickup sensor	282
F output bin full sensor	283
I developer alienation	284
J fuser pressure-release sensor	285
K primary transfer-roller-disengagement sensor	286
L media sensor	288
M front-door switch	289
N right-door switch	290
Manual sensor test 2 (special-mode test)	291
O Tray 1 paper present sensor	293
P Tray 2 paper present sensor	294
Q Tray 2 paper surface 1 and 2 sensors	295
R Tray 2 paper size switches	296
S Tray 3 paper present sensor	297
T Tray 3 feed sensor	297
U Tray 3 paper surface 1 and 2 sensors	297
V Tray 3 paper size switches	297
W Tray 4 paper present sensor	297
X Tray 4 feed sensor	297
Y Tray 4 paper surface 1 and 2 sensors	297
Z Tray 4 paper size switches	298
a Tray 5 paper present sensor	298
b Tray 5 feed sensor	298
c Tray 5 paper surface 1 and 2 sensors	298
d Tray 5 paper size switches	298
5V laser and 24V interlock and logic switches (and power switch)	299
Location and testing	299
Defeating	300
New ITB sensor	303
Tray 3, 4, and 5 right door switch	304
Paper-path sensors test	305
Print/stop test	305
Component tests	306
Component test (special-mode test)	306
Diagrams	309
Block diagrams	309
Plug/jack locations	312
Location of connectors	313
DC controller connector locations	313
Controller PCA (1 x 500-sheet and 3 x 500-sheet optional paper feeders)	315
Locations of major components	316
General timing chart	326
Circuit diagrams	327
HP Easy Printer Care	331
Open the HP Easy Printer Care software	331
HP Easy Printer Care software sections	331
Internal print-quality test pages	334
Print-quality-troubleshooting pages	334
Diagnostics page	337
Cleaning page	338
Configuration page	339
Configuration page	339
HP embedded Jetdirect page	341
Embedded protocol page	342
Finding important information on the configuration pages	343
Color-band test	343
Print-quality troubleshooting tools	344
Repetitive defects ruler	344
Calibrate the product	345
Control panel menus	346
Control panel menus	346
Show Me How menu	346
Retrieve job menu	346
Information menu	349
Paper handling menu	349
Manage supplies menu	350
Configure device menu	353
Printing menu	353
PCL sub-menu	355
Print Quality menu	356
System setup menu	361
I/O menu	366
Resets menu	374
Diagnostics menu	374
Service menu	376
Interpret control-panel messages	377
Control-panel message types	377
Control-panel messages	377
Event log messages	408
Print an event log	408
Show an event log	408
Sample event log	409
Clear the event log	409
Event log message table	410
Clear paper jams	415
Common causes of jams	415
Jam locations	418
Clear jams in the right door	419
Clear jams in the output bin area	422
Clear jams in Tray 1	422
Clear jams in Tray 2 or optional Trays 3, 4, or 5	424
Clear jams in the lower right door (Tray 3, 4, or 5)	425
Jam causes and solutions	426
Jams in the output bin	426
Jams in the fuser and transfer area	426
Jams in the duplex area (HP Color LaserJet CP4525dn, HP Color LaserJet CP4025dn, and HP Color LaserJ ...	429
Jams in Tray 1, Tray 2 and internal paper path	431
Jams in Tray 3, 4, and 5	432
Change jam recovery	434
Solve paper-handling problems	435
Product feeds multiple sheets	435
Product feeds incorrect page size	435
Product pulls from incorrect tray	435
Paper does not feed automatically	436
Paper does not feed from Tray 2, 3, 4, or 5	436
Transparencies or glossy paper will not feed	437
Envelopes jam or will not feed in the product	437
Output is curled or wrinkled	438
Product will not duplex or duplexes incorrectly	438
Use manual print modes	440
Solve image-quality problems	442
Image defects table	442
Clean the product	448
Clean the paper path	448
Solve performance problems	449
Solve connectivity problems	450
Solve direct-connect problems	450
Solve network problems	450
Service mode functions	452
Service menu	452
Product resets	455
Restore factory-set defaults	455
Hard disk initialization (optional)	455
NVRAM initialization	455
Product cold reset	456
Product updates	456
Parts and diagrams	457
Order parts, accessories, and supplies	458
Part numbers	459
Accessories	459
Print cartridges and toner collection unit	459
Memory	459
Cables and interfaces	459
Customer self repair (CSR) parts	460
Service maintenance kits	460
Unique components	461
Screws	462
How to use the parts lists and diagrams	463
External covers, panels, and doors	464
Right door assembly	466
Front door assembly	468
Internal components	470
Internal components (1 of 7)	470
Internal components (2 of 7)	472
Internal components (3 of 7)	474
Internal components (4 of 7)	476
Internal components (5 of 7)	478
Internal components (6 of 7)	480
Internal components (7 of 7)	482
Cassettes 2-5	484
Paper pickup assembly	486
Tray 1 paper pickup assembly	488
Registration assembly	490
Secondary transfer assembly	492
Delivery assembly	494
Fuser assembly	496
PCAs	498
Assessories	500
Paper feeders	500
Paper feeder external covers, panels, and doors	502
1 X 500 paper feeder main body	504
3 X 500 paper feeder main body	506
Alphabetical parts list	508
Numerical parts list	516
Service and support	525
Hewlett-Packard limited warranty statement	526
HP's Premium Protection Warranty: LaserJet print cartridge limited warranty statement	527
HP Color LaserJet Fuser Kit Limited Warranty Statement	528
End User License Agreement	529
Customer self-repair warranty service	531
Customer support	532
Product specifications	533
Physical specifications	534
Performance specifications	534
Electrical specifications	534
Acoustic specifications	535
Environmental specifications	535
Skew specifications	536
Regulatory information	537
FCC regulations	538
Environmental product stewardship program	539
Protecting the environment	539
Ozone production	539
Power consumption	539
Toner consumption	539
Paper use	539
Plastics	539
HP LaserJet print supplies	539
Return and recycling instructions	540
United States and Puerto Rico	540
Multiple returns (more than one cartridge)	540
Single returns	540
Shipping	540
Residents of Alaska and Hawaii	540
Non-U.S. returns	540
Paper	540
Material restrictions	541
Disposal of waste equipment by users in private households in the European Union	541
Chemical substances	541
Material Safety Data Sheet (MSDS)	542
For more information	542
Declaration of Conformity	543
Safety statements	544
Laser safety	544
Canadian DOC regulations	544
VCCI statement (Japan)	544
Power cord instructions	544
Power cord statement (Japan)	544
EMC statement (China)	545
EMC statement (Korea)	545
EMI statement (Taiwan)	545
Laser statement for Finland	545
GS statement (Germany)	546
Substances Table (China)	546
Restriction on Hazardous Substances statement (Turkey)	546

Match case Limit results 1 per page

Figure 3-45

General circuit diagram (1 of 2)

MEDIA-SNS

HEATER1

+5VB

+24VB

FP0

FPCLK

/FPCS

SGND

PGND

+24VA

LED_ON

PREEXP1

MEDIA-SNS

PREEXP4

PREEXP3

PREEXP2

PGND

+24VA

PGND

+24VA

PGND

+24VB

PGND

3.3VS

SGND

3.3VS

SGND

DRMHP3

DRMHP1

MPTSL

SGND

3.3VS

FSRSNS

SGND

FSRTH1

FSRTH2

SGND

3.3VS

PGND

/VD021

VD021

/VD022

VD022

/VDO41

VDO41

/VDO42

VDO42

/VDO31

VDO31

/VDO32

VDO32

CLEO

24VB

FSRSAFE2

FSRSAFE1

24RMT

TOPI

3.3VS

SGND

DRMHP4

N.C.

MD0

MD2

P80

P81

+3.3V

IOTR

SGND

IOTT

/FSRNEW

+12V

PGND

+24VB

PGND

PWRSWON

PWRON

GND

+12V

/BD3O

/BD4O

/BD2O

/BD1O

CAN_H

CAN_L

JLPWRON

SGND

AWAKE

SGND

/TOPO

/VCRST

SGND

VDO12I

VDO11I

ENGON

SGND

CLEI

/VDOEN

/VDO12I

/VDO11I

/FSMACC

/FSMDEC

/FSMFG

FSMFR

+24VB

+24VA

PGND

3.3VS

24VB

SGND

SW_LED

/BMFG

/BMDEC

/BMACC

24VB

3.3V

NPTRLED

REFEEDS

SGND

3.3VS

MPTPEND

SGND

FSLP2

FSLP1

FSRTH3

SGND

FP3.3V

FP5V

FPI

FDOORSNS

SGND

PGND

3.3VS

SGND

ITBLKSNS

CHK24V

/FSRMSTOP

INL_CURRMS

PWROF

FSR_CURRMS

/RLD

ZEROX

FSRD1

SGND

PWRSWON

3.3VF

SGND

PFCRMT

PSTYP100

FAN3LK

FAN3PWM

5VB

5VC

5VB

+24VA

PGND

/DRM3ACC

/DRM3DEC

/DRM3FG

DRMHP2

SGND

1TRSL

+24VB

SGND

NPLED

POUTSNS

100V

200V

/DRM2FG

/DRM2DEC

/DRM2ACC

DRMFR

/DRM1FG

/DRM1DEC

/DRM1ACC

DRMFR

N.C.

DRMFR

/DRM4FG

/DRM4DEC

/DRM4ACC

DRMKFR

TCK

HEATERC

ACL

ACH

NPLED

3.3VS

RMCL

WTMSNS

NPSL_DATA

NPSL_EN

NPLED

NPSTART

/NPRST

5VA

NPSD_OUT

NPSD_RD

SGND

NPCLK

PGND

CHK24V

SR8

SL3

J52DH

J52D

J74DH

10 9

J74D

J77DH

J64D

J64DH

10 9

J77D

14 13 12 11 10 9

J127

J63DH

J63D

J48

J62DH

SR10

SR5

J63L

CT-3

J62L

FM3

CT-3

J62D

J155

CT-5

J74LS

J27S

J77LS

J92D

TH3

J99

J14

J20S

J23S

J604

IL101

IL201

LED1

J78L

J44

J603

SW3

J601

TB401

SW2

J61M

J61F

FT1

J129

M12

12 11 10 9

J145

J148

J131

J53DH

J94D

SR4

J78DH

11 10 9

J78D

J31

J93D

J92LH

J140

J54DH

J54D

J123

J13

17 16 15 14 13 12 11 10 9

J121

J18

16 15 14 13 12 11 10 9

J120

J15

J17

J16

J75D

J92L

J93L

J93LH

J94LH

J94L

J75DH

J52L

J28

SR1

J29

SL1

SR3

TB1

TB2

J75L

SW1

FT2

SR22

J21

J74L

J351

J51D

J25M

J25F

SOLD30

SOLD31

SW5

J45

J607

J161

J50LA

J50LB

J50L

J50DA

J50DB

J151

18 17 16 15 14 13 12 11 10 9

J150

J20

SR20

J23

CL1

J84

J105

J160

J162

J54L

J301

J350

J101

J102

J22

J303

J304

J152

J53D

J27

J77L

J50D

J51L

J53L

J12

TP1

J51DH

J11

J352

J10

SR15

SR14

TH2

TH1

TB201

TB202

TB501

TB502

FU1

SR2

LED2

LED3

LED4

J32

TB402

TB403

TB404

TB405

TB406

J604A

SR20

Power Supply Unit

Inter Connect Board

Power SW

Control

Panel

Registration Unit

(Duplex model)

Registration Unit (Simplex model)

296

Chapter 3

Solve problems

ENWW