Casio QV-780 Troubleshooting guide

R
QV-780
AUG. 1998
(without price)
(KX-776)
Ver.1 Aug / 1999

CONTENTS
SPECIFICATIONS ......................................................................................................................................1
WIRING AND BLOCK DIAGRAM ..............................................................................................................2
POWER SUPPLY CIRCUIT OPERATION..................................................................................................3
ADJUSTMENT ...........................................................................................................................................4
1. Unit Adjustment ....................................................................................................................................4
1-1. Color parameters loading ............................................................................................................4
1-2. Scratch compensation .................................................................................................................5
1-3. Flash adjustment ..........................................................................................................................5
1-4. Flash check ...................................................................................................................................6
1-5. Current consumption ...................................................................................................................7
1-6. Clock reset ....................................................................................................................................7
1-7. Other test modes ..........................................................................................................................8
2. PCB K772-DA Adjustment....................................................................................................................8
2-1. VCC1, VCC3 voltage check..........................................................................................................9
2-2. VCC7, VEE3 adjustment...............................................................................................................9
2-3. Clock oscillation check................................................................................................................9
3. PCB K772-L Adjustment.....................................................................................................................10
3-1. VCC1 adjustment and VCC2, VCC6, VEE2, VCC0 voltage check...........................................11
3-2. VCO free run frequency adjustment .........................................................................................11
3-3. Backlight drive voltage adjustment ..........................................................................................12
3-4. VCOM AC adjustment and VCOM DC coarse adjustment ......................................................12
3-5. Brightness voltage setting and contrast adjustment..............................................................13
3-6. BCC ..............................................................................................................................................14
3-7. Color adjustment ........................................................................................................................15
3-8. VCOM DC adjustment.................................................................................................................15
DISASSEMBLY ........................................................................................................................................16
PRINTED CIRCUIT BOARDS ..................................................................................................................22
TROUBLESHOOTING .............................................................................................................................26
EXPLODED VIEW ....................................................................................................................................28
PARTS LIST .............................................................................................................................................30
SCHEMETIC DIAGRAMS ........................................................................................................................36

— 1 —
SPECIFICATIONS
Item Specification
Recording System Digital (JPEG base)
Signal System PAL
Recording Medium Memory card (2MB card included)
Memory Capacity FINE: 14 images (Minimum) (133KB compressed)
(2MB Card)/ NORMAL: 26 images (Minimum) (70KB compressed)
Computer Output image ECONOMY: 47 images (Minimum) (38KB compressed)
Recording Modes Single-image; Movie; Repeat; Panorama; Timer; Interval timer; Self-timer
Image Element 1/4-inch CCD (350,000 pixels)
Lens Fixed focal point with macro position; F2, f = 3.94mm
Aperture F2, F8 switching/fixed
Focus Range NORMAL: 0.7m to ∞
MACRO: 14cm to 16cm (From surface of protective lens.)
Light Metering TTL center priority by CCD
Exposure Metering Program AE
Exposure Range EV +5 to 18
Exposure Correction –2EV to +2EV (1/4EV units)
Shutter CCD electronic shutter
Shutter Speed 1/8 to 1/4000 second
White Balance Automatic, WB1, WB2, WB3
Self-timer 2, 10 seconds
Flash Modes AUTO, ON, OFF
Resolution Modes FINE, NORMAL, ECONOMY
Monitor 2.5-inch TFT low-glare color LCD; 84,480 pixels
Computer Output image 640 x 480 pixels
Input/Output Terminals DIGITAL OUT, VIDEO OUT, AC adaptor connector, memory card connector
Clock January 1, 1998 00:00:00 to December 31, 2049 11:59:59 (Auto Calendar)
Power Supply Four batteries (AA-size alkaline, lithium or Ni-MH batteries)/AC adaptor (AD-C620)
Battery Life This camera can be power using AA-size alkaline, lithium or Ni-MH batter-
ies. The battery life reference values given below indicate the amount of
time at standard temperature (25°C) until power automatically turns off due
to battery failure. They do not guarantee that batteries will perform the amount
of service indicated. Battery life is reduced by low temperatures and contin-
ued use.
Continuous Playback: Alkaline Batteries (LR6); Approx.180 minutes
Lithium Batteries (FR6); Approx. 290 minutes
AA-size Ni-MH; Approx.170 minutes
Continuous Recording: Alkaline Batteries (LR6); Approx. 630 shots
Lithium Batteries (FR6); Approx. 1,200 shots
AA-size Ni-MH; Approx. 780 minutes
•The above figures are approximations only.
•The above guidelines are based on the following battery types:
Alkaline: MX1500 (AA) DURACELL ULTRA
Lithium: Energizer
Ni-MH (Nickel-Metal Hydride): CASIO NP-H3
•Battery life varies with brand.
“Continuous Recording” is made without use of the camera’s flash.
Regardless of use of the camera’s flash, turning on and off the POWER
Switch, as well as other operating conditions may affect the above values.
Dimensions 147(W) x 69(H) x 50(D) mm / 5.8”(W) x 2.7”(H) x 2.0”(D)
Weight Approximately 290g (excluding batteries)
Accessories Memory card; wrist strap; soft case; video cable; four LR6 alkaline batteries;
owner’s manual.

— 2 —
WIRING AND BLOCK DIAGRAM
Photo INT
Auto Iris Lens
Solenoid
CB-PCB
ICX098AK
15V
CCD
15V
-5.5V
Vdrv
CXD1267AN
3.5V CXA2056Q
CDS+AGC
CXD2310R
ADC
3.5V
BR9040F
EEROM
T.G
3.3V
CXD2452R
20-pin
23-pin
8-pin
KEY-PCB
DA-PCB
60-pin
3.3V YUV
Processor
CXD3120R
3.3V
3.0V Switching
RS5C316A
RTC
UPD6466
OSD
MB91181
Detection
Switch
3.3V MACO 3.2V
INTR
CFDET Signal
Generator
Video
RS232C
EDO_
DRAM
Flash
Memory
3.3V
3.3V
3.3V
15.0V
-5.5V
5.0V
Battery Voltage
Voltage Controller
5V
VIDEO
RS232C
3.3V
CF
AC Adaptor
6.0V
10-pin
3.0V
4.5V
18.0V
12.0V
-10.5V
Trans-
former
5-pin
Battery voltage
GND
Battery voltage
GND
7-pin
Strobe Ass'y
Comparator
Photo
Sensor
Xenon Lamp Battery
Voltage
Voltage Controller
Detection Sw.
(RSTW)
FUNC
button
LED Chroma
IR3Y18A Display Controller
CM7013L2
4.5V 3V 26-pin
BL
LCD module
High Voltage
Generator
5-pin
CA-PCB
Motor Driver IRISA/IRISB
Battery Voltage
L-PCB
3.3V
7-pin
3.3V

— 3 —
1
2
3
4
5
6
7
8
VCC1-1
IC582
IC582
VCC1-1
VCC3-1
VCC3-1
PON
KEY0
KEY1
KEY2
SHTTER
GND
GND
CN504
R593
C592
R592
1 2 3 4
8 7 6 5
R594
R585
Q588
R595
R579
Q583
2
2
31
3
1
C590
VCC1-1
Q582
1
3
2
5
4
IC584
IC586
1
2
3
FU152 R590
C525
+
OUT
VDD
GND
NC
NC
CK D Q GND
VCC
PR
CLR
Q
1PON from
Key PCB
VCC1-1
Q580
1
2
3
2APO from Pin 202
of IC500
6Voltage detection signal
3POB to Pin193
of IC500
4FACT from
Pin 195 of IC500
IC588
VCC1-1
VCC1-1
VCC
GND
VCC
GND
5
1
23
4
6
5
4
3
8
5Power ON to Pin 1 of Q155
1
27
POWER SUPPLY CIRCUIT OPERATION
1
2
3
4
5
6
Signal
PON
APO
POB
FACT
Power On
Voltage
detection
Operation
Power on/off signal (pulse) from Key PCB
Auto power off signal (pulse) from pin 202 of IC500
Power on/off recognition signal to pin 193 of IC500
ON: H (VCC3) OFF: L (GND)
Forced power on signal from pin 195 of IC500
Forced ON: H (VCC3) OFF: L (GND)
ex. While writing to flash memory
Power on/off signal to pin 1 of Q155
ON: H (VCC1) OFF: L (GND)
Normal: H
Low voltage: L

— 4 —
ADJUSTMENT
1. Unit Adjustment
Contents of the adjustment
(1) Color parameters loading
(2) Scratch compensation
(3) Flash adjustment
(4) Flash function check
(5) Current consumption check
(6) Clock reset
(7) Other test modes
Necessary equipments
(1) IBM PC/AT compatible computer
(2) Computer link cable
(3) Digital oscilloscope
(4) Stabilized power supply
(5) Ammeter
1-1. Color parameters loading
Perform the following procedures when you replaced Camera Unit.
(1) Set the QV-780 in “PLAY” mode.
(2) Connect the camera and a computer with a link cable.
(3) Execute the following program on MS-DOS system.
PON776.EXE (for COM port 1)
(4) Loading is done successfully when computer monitor shows a message stating that loading is
completed.
Note:After the loading, also perform the following Scratch compensation and Flash adjustment.
Digital terminal
To RS-232C
connector
When the loading is completed normally
.When the loading is failed (example)

— 5 —
1-2. Scratch compensation
“Scratch” is a black dot which appears dimly on a white screen. Three scratches are allowable on
350,000 pxels screen. Perform this adjustment after loading color parameters.
(1) Set the QV-780 in “REC” mode.
(2) Set the dial on “ ” (PANORAMA MODE).
(3) While pressing down the SHUTTER and DEL buttons, turn the power on.
LCD screen indicates “TEST MODE”.
(4) While TEST MODE is indicated on the LCD, select the dial on .
Press “MENU” and “ ” buttons simultaneously.
LCD indicates;
(5) Cover QV-780 lens so that the light does not go in the
camera.
(6) Using “+” or “–” buttons, select “DEFECT CORRECT” and
press the SHUTTER button to execute the program.
(7) Make sure that the small red square mark on LCD turns in
blue.
(8) Turn the POWER switch off.
As the compensation data is written in the EEPROM by the
POWER switch operation, do not forget to turn it off using
the switch.
1-3.Flash adjustment
Perform this adjustment when you replaced the flash unit or
after color parameter loading.
Preparation and condition;
• Adjustments previously described should be completed.
• Distance between flash cover and gray paper should be one
meter.
• The adjustment must be done in a dark room.
• Use following gray paper for the testing.
Notes: •Use lighter color surface of the paper.
• Gray paper should be larger than the shooting area.
Though these papers are available from Casio, large camera stores handle them.
1 meter
Gray paper
Code No. Name Specification
1904 5411 Superior Seamless Paper No. 22 (1.75 x 2.7 m)
1904 5412 Superior Seamless Paper No. 22 (2.72 x 11 m)
CLOCK RESET
STROBE ADJUST
DEFECT CORRECT
BATTERY CHECK

— 6 —
DC6.0±0.1V
Voltage
Regulator
A
Ammeter
Put oscilloscope probe
on Camera unit.
Digital oscilloscope
TIME: 1.0¨ µsec/div
VOLTS: 1V/div (AC)
(1) Set the QV-780 in “REC” mode.
(2) Execute the test program.
• Set the dial on “ ” (PANORAMA MODE).
• While holding down the “SHUTTER” and “DELETE” buttons, turn the POWER on.
• While TEST MODE is indicated on the LCD, select the dial on .
Press “MENU” and “ ” buttons simultaneously.
LCD indicates;
(4) Use “+” or “–” buttons to select “STROBEADJUST” and press the SHUTTER button.
(3) Shot a picture of the test paper.
(Flash indicator should be red before shooting.)
(5) Make sure that the flash icon turns from red to blue.
(If it does not turn into blue, IC531 might be faulty.)
(6) Turn the POWER switch off.
As the adjustment data is written in the EEPROM by the POWER switch operation, do not forget
to turn it off using the switch.
1-4.Flash check
This test is to make sure that the flash circuit is not affected by undesirable electric noise. Perform
this test whenever you changed wirings of the camera unit.
Conditions;
• Perform after the flash adjustment
• Use “ ” button to select Flash On.
• Apply 6.0 ±0.1 [V] voltage on DC IN jack.
(1) Set the QV-780 in “REC” mode and press the shutter.
(2) Using a digital oscilloscope, monitor flash trigger pulse.
TIME: 1µsec/div
VOLTS: 1V/difv
OK if this peak is shown
Correct waveform
NG waveform
TIME: 1µsec/div
VOLTS: 1V/difv
2nd positive peak is not
shown.
CLOCK RESET
STROBE ADJUST
DEFECT CORRECT
BATTERY CHECK

— 7 —
If the following pictures are taken, it may be caused by faulty wirings.
To solve this problem, install the wires as shown below.
Shrinken
1-5.Current consumption
(1) Set the QV-780 in “REC” mode. After the flash circuit is fully charged, make sure that the current
consumption is less than 550 [mA] (for example, at PLAY mode, current consumption is 380 [mA]
when the flash is fully charged.
(2) Reduce the power supply voltage to 3.8 [V] and make sure that the low battery warning indicator
is shown.
1-6.Clock reset
Perform the following procedures when you replaced PCB K772-DA.
(1) Set the QV-780 in “REC” mode.
(2) Execute the test program.
• Set the dial on “ ” (PANORAMA MODE).
• While holding down the “SHUTTER” and “DELETE” buttons, turn the POWER on.
• While TEST MODE is indicated on the LCD, select the dial on .
Press “MENU” and “ ” buttons simultaneously.
LCD indicates;
CLOCK RESET
STROBE ADJUST
DEFECT CORRECT
BATTERY CHECK
(3) Set the QV-780 on “PLAY” mode and make sure that the picture taken is not too dark or too light.
(4) After the shot, flash is charged automatically. Observing the ammeter, make sure that the charging
current is less than 1.2 [A].
Red wire
White wire
*Warning: Discharge
capacitor before operat-
ing in accordance with
DISASSEMBLY proce-
dure of page 19. There
is a risk of electric
shock. Soldering
Lens
Strobe Note: Red wire and
white wire in front. The
other four wires in the
back.
Removable
for correction

— 8 —
(3) Using “+” or “–” buttons, select “CLOCK RESET” and press the SHUTTER button to execute the
program.
1-7.Other test modes
(1) Set the QV-780 in “REC” mode.
(2) Execute the test program.
• While holding down the “SHUTTER” and “DELETE” buttons, turn the POWER on.
• While TEST MODE is indicated on the LCD, press “MENU” and “ ” buttons simultaneously.
LCD indicates;
(3) Using [ + ] or [ – ] buttons, select a test mode then press “SHUTTER”.
2. PCB K772-DA Adjustment
Contents of the adjustment
(1) VCC1, VCC3 checks
(2) VCC7, VEE3 adjustments
(3) Clock oscillation frequency check
Checkpoints
BLACK
COLOR BAR
APO OFF
CP573 CP151
CP592 CP596 CP150
CP593CP594 CP595
CP160 CP161
CP175 CP170
CP153 CP154
CP155
CP167
CP175
CP168
CP520
CP570
CP171
CP529
CP571
CP572
CP567
CP566
CP540
CP541 CP165
CP183
CP578
CP561 CP562
CP560
CP182 CP166
CP184
CP164
VR651
VR650
SW502

— 9 —
2-1. VCC1, VCC3 voltage check
Apply 5.0 ±0.05 [V] on check point CP150. (For normal check you can use an AC adaptor however,
when the camera is faulty, apply the above mentioned voltage.)
(1) At Power on;
VCC1 (CP164) ................. 3.2 ±0.16 [V]
VCC5-1 (CP165) .............. 5.25 ~4.75 [V]
VCC5-2 (CP166) .............. 5.25~4.75 [V]
VCC3-1 (CP167) .............. 3.3 ±0.17 [V]
VCC3-3 (CP168) .............. 3.3 ±0.17 [V]
VCC3-4 (CP169) .............. 3.3 ±0.17 [V]
(2) At Power off;
VCC3-1 (CP164) .............. 0 [V]
2-2.VCC7, VEE3 adjustment
Apply 5.0 ±0.05 [V] on check point CP150. (For normal check you can use an AC adaptor however,
when the camera is faulty, apply the above mentioned voltage.)
(1) Adjust VR650 so that VCC7 (CP170) is 15.0 ±0.45 [V].
(2) Adjust VR651 so that VEE3 (CP171) is -5.5 ±0.2 [V].
2-3.Clock oscillation check
• Apply 3.2 ±0.1 [V] on lithium battery terminal (CP578).
• Turn power off.
• Room temperature should be 25 ±10 °C.
(1) Use quartz timer or frequency counter to measure clock frequency.
• Quartz timer; within ±62 ppm
• Frequency counter (check point TC500 signal pad); 32.767 ±0.002 [KHz}
(2) Current consumption; less than 1 [µA]

— 10 —
3. PCB K772-L Adjustment
Contents of the adjustment
(1) VCC1 adjustment and VCC2, VCC6, VEE2, VCC0 voltage check
(2) VCO free run frequency adjustment
(3) Backlight drive voltage adjustment
(4) VCOMAC adjustment and VCOM DC coarse adjustment
(5) Brightness voltage setting and contrast adjustment
(6) BCC adjustment
(7) Color adjustment
(8) VCOM DC fine adjustment
Check points
CP317
CP700
VR350
VR302
CP350
CP120
CP149
CP114 CP110 CP111
CP300
CP112
CP100 CP324
CP322
CP320 CP711 CP337
CP113
CP733
VR303
VR100
CP101
CP146
CP901
CP900
CP140
CP147 CP145
CP115
CP725
CP351
CP142
CP141
VR300
VR301
VR900
VR710
CP344 CP308
CP902

— 11 —
3-1.VCC1 adjustment and VCC2, VCC6, VEE2, VCC0 voltage check
Apply 5.0 ±0.05 [V] on check point CP101. (For normal check you can use an AC adaptor however,
when the camera is faulty, apply the above mentioned voltage.)
(1) Adjust VR100 so that VCC1 is 4.50 ±0.02 [V]
(2) Check the following voltages.
VCC2 ...................... 11.5 ~ 12.5 [V]
VCC6 ...................... 17.5 ~ 19.5 [V]
VEE2....................... -9.5 ~ -11.5 [V]
VCC0 ...................... 2.8 ~ 3.2 [V]
(3) Turn the power off and make sure that all the voltages are 0 [V].
3-2.VCO free run frequency adjustment
• Show color bar in test mode.
• Apply 5.0 ±0.05 [V] on check point CP101. (For normal check, AC adaptor can be used, however,
when the camera is faulty, apply the above mentioned voltage.)
• Connect check points CP725 (SYF) and CP115 (VCC0).
(1) Monitoring CP733 (HDB) with a frequency counter, adjust VR710 so that the frequency is 15.625 ±
0.1 [KHz].
(2) Disconnect CP725 and CP115 and make sure that signals of CP337 (CSY) and CP733 (HDB) are
synchronized.
Power
Supply
Oscilloscope
Frequency
Counter
HDB
CSY
VCC0
SYF
(CP725)
HDB
(CP733)
CSY
(CP337)
PCB K772A-L
QV-780

— 12 —
3-3.Backlight drive voltage adjustment
Apply 5.0 ±0.05 [V] on check point CP101. (For normal check, AC adaptor can be used, however,
when the camera is faulty, apply the above mentioned voltage.)
(1) Adjust VR900 so that CP901 (VBL) is 11.5 ±0.1 [V].
Also make sure that the current consumption is not abnormally large.
3-4.VCOM AC adjustment and VCOM DC coarse adjustment
• Show color bar in test mode.
• Apply 5.0 ±0.05 [V] on check point CP101. (For normal check, AC adaptor can be used, however,
when the camera is faulty, apply the above mentioned voltage.)
(1) Make sure that the oscillation level of VCOM output (CP351) is 6.0 ±0.3 [V].
(2) Adjust VR350 so that the low level potential is 2.5 ±0.2 [V].
Power
Supply
Oscilloscope
2.5±0.2 [V]
0 [V]
PCB K772A-L
QV-780
VCOM
(CP351)

— 13 —
3-5.Brightness voltage setting and contrast adjustment
• Show color bar in test mode.
• Apply 5.0 ±0.05 [V] on check point CP101. (For normal check, AC adaptor can be used, however,
when the camera is faulty, apply the above mentioned voltage.)
(1) Via 22 kohm resistor apply VCC1 (CP113) voltage on killer terminal (CP308).
(2) Adjust BRIGHT VR (VR302) so that pedestal voltage of VB (CP324) signal is 5.0 ±0.1 [V].
(3) Connect oscilloscope’s trigger terminal to FRP (CP711) for external trigger.
(4) Adjust VR303 so that potential between VB (CP324) signal’s pedestal and white peak is 2.9 ±0.1 [V].
• Make sure that the waveforms are not distorted.
• After the adjustment, disconnect the voltage supply of the killer terminal.
• Do not turn BRIGHT VR until TINT and COLOR adjustments are completed.
Power
Supply
Oscilloscope
22K
2.9±0.1
5.0±0.1V
Killer terminal
(CP308)
VB terminal
(CP324)
(L-PCB)
QV-780 VCC1

— 14 —
3-6.BCC adjustment
• Perform this procedure with color adjustment
• Show color bar in test mode.
• Power supply voltage VCL 0 (CP101) = 5.0 ±0.05 V.(For normal check,AC adaptor can be used,
however, when the camera is faulty, apply the above mentioned voltage.)
• Adjust L300 so that four pulses of VB waveforms (CP324) almost have no amplitude.
(1) Perform this procedure after contrast adjustment.
(2) Set the pedestal voltage of VB to 5.0 ±0.1 Vp-p by adjusting BRIGHT VR (VR302).
(3) Use FRP (CP711) for trigger.
(4) If waveform changes by adjusting color perform Step (2).
Power
Supply
Adjust to same level
Oscilloscope
L-PCB
VB terminal
(CP324)

— 15 —
Power supply
QV-780
Photo diode
S1153 Photosensor amp.
C2719
B.P.F.
Oscilloscope
Adjust VR350
to minimize the
ripple.
3-8.VCOM DC adjustment
• Perform this adjustment when you replace the display module.
• No signal input
• BRIGHT VR: Maximum
• Apply 6.0 ±0.1 [V] (DC in). (For normal check, AC adaptor can be used, however, when the camera
is faulty, apply the above mentioned voltage.)
(1) Adjustment VR350 if the display is flikered, dimmed or discolored with watching the LCD screen.
(2) If the adjustment cannot be done well, passing photosensor amp output signal through 60 Hz
band-pass filter, adjust VR350 to minimize the ripple of 60 Hz signal as shown below.
3-7.Color adjustment
• Perform this procedure together with BCC adjustment.
• Show color bar in test mode.
• Power supply voltage VCL0 (CP101) = 5.0 ±0.05 V(For normal check, AC adaptor can be used,
however, when the camera is faulty, apply the above mentioned voltage.)
• Adjust VR300 so that the first 1the second 2pulse of VB waveform (CP324) becomes 4.1 ±0.1 V.
(1) Perform this procedure after contrast adjustment.
(2) Set the pedestal voltage of VB to 5.0 ±0.1 Vp-p by adjusting BRIGHT VR (VR302).
(3) Use FRP (CP711) for trigger.
(4) If waveform changes by adjusting BCC perform step (2).
(5) Make sure 3and 4have almost the same value.
Power
Supply
4.1 ±0.1 [V]
Oscilloscope
L-PCB
VB terminal
(CP324)
1
234
4
2
1
3

— 16 —
DISASSEMBLY
The following explains the disassembly procedure of QV-780. Numbers in the procedures correspond to the
part numbers on the exploded view.
Assembly can be done by the reverse order.
1. Remove the CompactFlash card by pushing the release lever.
2. Remove two screws jfrom the bottom of the camera.
3. Unscrew two screws ffrom the lens side of the case.
Note:Turn the lens as screws fare hidden by the Camera unit 1.
4. Remove three screws hand one screw ifrom the CompactFlash card compartment.
Note: Screw iis longer than the others. Do not misplace it when you assemble the camera.
i

— 17 —
5. Prying the case R, remove the battery cover and CompactFlash card cover.
6. Unhook the upper part of Case/Upper Rand open the case.
7. Desolder a lead wire from PCBAss’y/Linear aand disconnect FPC from the connector CN514 on PCB
Ass’y/Digital. Separate Case/Upper Rand Case/Lower E.
8. Remove two screws gand disconnect two connectors from PCB A’ssy/Digital then separate Camera
unit 1.
9. Remove two screws ffrom PCB Ass’y/Digital 2and detach FPC from connector CN504.
Unhook here

— 18 —
10.Lift up the buttom of the battery compartment and remove Holder/Battery 3and PCB Ass’y/Digital.
11.Take Knob/Selector 6and PCB Ass’y/Key 5off the case.
Note: Knob/Selector 6can be removed by unscrewing two screws ffrom the bottom of the knob.
12.Peel Grip Kthen remove one screw hfrom Panel/Rear J.
Unclip the E-ring from Pin J.
Note: Peel Panel/Rear carefully off Case/Lower Eas it is attached with adhesive tapes.
Removing LCD Unit
13.Remove four screws lfrom PCB Ass’y/Linear a.
Note: Before you remove Holder/Battery 3, be
sure that CompactFlash card release lever
is in upright position.