Casio FV-600BA Troubleshooting guide

R
(without price)
JUL. 1995
FV-600BA/BB(KX-0761BIA/BIB)
FV-600BM (KX-0761BMA)
INDEX

— 1 —
CONTENTS
SPECIFICATIONS ......................................................................................... 2
SAFETY MEASURES.................................................................................... 3
ALARM DESCRIPTION................................................................................. 3
BLOCK DIAGRAM ........................................................................................ 4
OPTICAL DIAGRAM ..................................................................................... 5
MONITOR SWITCHES .................................................................................. 5
TROUBLESHOOTING................................................................................... 6
PARTS LIST FOR MAIN BLOCK.................................................................. 7
FOCUS ADJUSTMENT ................................................................................. 8
ADJUSTMENT MODE ................................................................................... 9
DISASSEMBLY ........................................................................................... 10
REPLACING THE FUSE ............................................................................. 18
REPLACING THE LAMP............................................................................. 19
PRINTED CIRCUIT BOARDS ..................................................................... 21
EXPLODED VIEWS ..................................................................................... 26
ELECTRICAL PARTS LIST......................................................................... 29
MECHANICAL PARTS LIST ....................................................................... 48
CPU PIN FUNCTION ................................................................................... 51
SCHEMATIC DIAGRAMS ........................................................................... 55
WAVEFORMS.............................................................................................. 60

— 2 —
SPECIFICATIONS
Item Specification
Receiving channels (BA and BB) VHF: 2 to 12 UHF: 13 to 69
Power supply BM (For U.S.A. and Canada): 110-130 V
BA: 100–120 V BB: 220–240 V
Power consumption BM (For U.S.A. and Canada): 118 W
BA: 116 W BB: 119 W
Color system NTSC
Input/Output terminals
External antena: F connector
Video in: 1.0 Vp-p, 75 Ω
Audio in: 308 m Vrms, 47 kΩminimum
Earphone: 3.5 mm mini jack, 16 Ω
Screen size (Built-in screen) 10 inches
LCD panel
Size: 2.4 inches
Type: Transparent TN liquid crystal panel
Driver: a-Si TFT active matrix
No. of picture element: 245,960 (440 X 559) dots
Lens Wide angle lens (F4.8, f=39.76 mm)
Lamp 80 W metal halide
Lamp life Approx. 2,000 hours
Focus adjustment range 20 inches to 100 inches (Image size)
Speaker output 3 W
Operating temperature 32°to 104°F (0°to 40°C)
Dimensions 11-5/16 (W) X 5-5/8 (D) X 16-1/8 (H) inches
28.8 (W) X 14.3 (D) X 41.0 (H) cm
Weight 13.3 lbs. (6.2 kg)

— 3 —
SAFETY MEASURES
The power will be turned off automatically when FV-600 is in the following conditions.
1. Fan is stopped.
2. High temperature
(1) Thermistor detects high temperature.
(2) Bimetal detects high temperature.
3. Fan filter is not set properly.
4. Rear cover is not set properly.
ALARM DESCRIPTION
Power LED Alarm LED Beep Description
Green On Off – Power on
OK Off Off – Power off
Red On Off – Power off by remote control
Green Blink Off – Cooling off (Fan is working.)
Green On Red Blink Twice High temperature warning
(Check the fan and fan filter.)
NG Red Blink Red Blink Three times 1. Lamp is defective.
2. Fan is defective.
1. Fan filter warning
(Check if the fun filter is set.)
Red On Red Blink Once 2. Rear cover warning
(Check if the rear cover is set.)

— 4 —
BLOCK DIAGRAM
TEKN7
Tuner M51496
IF BA7612
SW
TDA7056A
Audio
Amplifier
MCF0263
Comb
Filter
Low
Pass
Filter
µPD17068
CPU
Key EEP-ROM
Focus
Drive
Circuit
Fan
Control
Circuit
Power
Supply
Circuit
D/A (B)
M51406
Chrominance
Circuit
Focus
Motor
Fan
Motor
Temperature
Detector
Thermistor
Photo
Sensor
Remote
Controller
Metal
Halide
Lamp
Lamp
Drive
Circuit
Control
Circuit
Input
Circuit
12 V
Power
Supply
440 X 559 dots
TFT LCD Module
IR3Y07
Polarity
Reverser
D/A (R) µPC659
A/D (R)
Line
Memory
(R)
Line
Memory
(G)
Line
Memory
(B)
Controller
AC In
I / O
Circuit Speaker
Relay
Linear PCB
RGB
Power Supply PCBF–PCB
A/D PCB
D/A (G)
µPC659
A/D (B)
µPC659
A/D (G)
MB4097 HG51B201
LED
RM PCB
J–PCB
OPM Unit
*
Fan
Lens
Except for BM (For U.S.A. and Canada)

— 5 —
OPTICAL DIAGRAM
Mirror
Lens
Fan
10 inches built-in screen
Mirror
AC IN
LampTFT LCD module
20~100 inches screen
MONITOR SWITCHES
Fan monitor switch
Rear cover monitor switch
Built-in screen monitor switch

— 6 —
TROUBLESHOOTING
OPM UNIT TROUBLE
The precise adjustment of the optical axis is required when the OPM unit is re-assembled, and it can be
adjusted in our factory only.
Therefore replace the OPM unit when the following parts are defective.
• LCD unit
• Lens unit
• Step motor
• Fan
• Mirror
• Inner case
POWER SUPPLY TROUBLE
The individual parts for the power supply PCB unit are not supplied due to safety regulations. Replace the
power supply PCB unit when it is defective.
Symptom Cause Solution
No picture Lamp is defective. Replace.
LCD is defective. Replace OPM unit.
No power supply Fuse on power supply PCB is defective. Replace.
Power supply PCB unit is defective. Replace.
Front case assembling is not correct. Assemble it correctly.
Rear cover warning Rear cover is coming off. Attach it correctly.
Rear cover monitor switch is defective. Replace.
Fan filter warning Fan filter is coming off. Attach it correctly.
Fan filter monitor switch is defective. Replace.
No change to big screen mode Built-in screen is not locked when it pressed
down.
Replace latch.
Built-in screen monitor switch is defective. Replace.

— 7 —
FOB Japan
Item Code No. Parts Name Specification Quantity M N.R.Yen
BM BA BB Unit Price
1 6610 0300 Linear PCB ass'y K140110*1 1 0 0 1 9,830
1 6610 3732 Linear PCB ass'y K140166*1 0 1 1 1 9,830
2 6610 0720 AD PCB ass'y K240263*1 1 0 0 1 5,450
2 6610 3735 AD PCB ass'y K240304*1 0 1 1 1 5,450
3 3012 1260 Power supply PCB unit SPJ1236 1 0 0 1 8,750
3 3012 1393 Power supply PCB unit SPJ1256 0 1 0 1 8,750
3 1014 8087 Power supply PCB unit SPE1257 0 0 1 1 8,750
4 1014 7954 Lamp unit MH-SA08-CA1US 1 1 1 1 3,370
5 6610 1687 OPM unit K140094*2 1 1 1 1 25,570
6 3412 1302 Switch JPS1220-0201 2 2 2 5 65
7 5860 8876 Latch 29KO 2 2 2 5 52
Notes: M – Minimum order/supply quantity
PARTS LIST FOR MAIN BLOCK
AA
AA
A
: 5. OPM unit
Consists of the LCD unit, Fan, Lens
unit, and Inner case.
6. Switch
2. AD PCB ass'y
1. Linear PCB ass'y
4. Lamp unit
3. Power supply PCB unit
Rear View
7. Latch
Front View

— 8 —
FOCUS ADJUSTMENT
2. It shows the focus adjustment display and clatters for a while.
Focus adjustment in the 10 inches screen (built-in screen) mode is required in the following condi-
tions.
1. The focusing gear is moved compulsorily.
2. The lens position is moved compulsorily.
3. After replacing the linear PCB ass'y.
To adjust the focus in the 10 inches screen mode.
1. Press the MENU button for about five seconds in TV or VIDEO mode.
3. Press the FOCUS +/- buttons to adjust the focus.
4. Press the SET button to set the focus.
Note:
To adjust the focus in a big screen mode (the built-in screen is lowered completely), press the FOCUS +/-
and SET buttons. (Refer to the owner's manual.)
[{ [{ [{
FRONT PRJ
MENU FOCUS
CONTROL SET
TV/VIDEO VOLUME CHANNEL
REAR PRJ
10
FOCUS

— 9 —
ADJUSTMENT MODE
In the adjustment mode, the CPU of FV-600 ignores the monitor signals. So you can turn the power on when
the cases, covers, and air filter are removed.
WARNING:
1. There are some high voltage point on the power supply PCB unit. Never touch it when the power is on.
2. To avoid eye damage, never view the light produced by the lamp directly.
TO ENTER THE ADJUSTMENT MODE:
FV-600BA/BB (Except for U.S.A. and Canada)
1. While pressing the SET button, put in the AC plug.
2. Press the power button.
To escape the adjustment mode, pull out the AC plug.
FV-600BM (For U.S.A. and Canada)
1. Remove the rear case. (Refer to Disassembly)
2. Put in the AC plug.
3. Press the button on the linear PCB indicated as the following figure.
4. Press the power button.
To escape the adjustment mode, press the SET button.
Button A
Linear PCB on FV-600BM (Top View)

— 10 —
DISASSEMBLY
2. Remove the filter and the four screws that
hold the louver L and R sub ass'ys.
Be sure to pull out the AC plug before disassembling the unit.
(Never pull out it while the fan is working.)
TO REMOVE THE LOUVER L AND R SUB ASS'YS:
1. Remove the two screws and the rear cover ass'y.

— 11 —
3. Remove the louver L and R sub ass'ys.
Note: To remove them, lift a part indicated by the arrows.

— 12 —
TO REMOVE THE REAR CASE SUB ASS'Y:
1. Disconnect the two wires shown in the circles.
2. Remove the seven screws and unhook the latch at the jack cover.

— 13 —
3. Remove the rear case sub ass'y.
TO REMOVE THE FRONT CASE SUB ASS'Y:
Remove the four screws and the front case sub ass'y.

— 14 —
Flat cable
1
2
22 3
4
Rear View
2
2
2
6
Power supply unit
Jack unit
Flat cable Cable sub ass'y
7
TO REMOVE THE POWER SUPPLY UNIT:
1. Remove the tape that holds the flat cable.
2. Remove the three screws.
3. Pull out the power supply unit.
4. Remove the wire of the power supply unit.
5. Remove the lamp unit.
6. Disconnect the cable sub ass'y.
7. Remove the two screws and the jack unit.

— 15 —
Front View
TO REPLACE THE LATCH FOR THE SCREEN:
1. Remove the front case sub ass'y.
2. Replace the latch shown in the circle.

— 16 —
2
4
1
Rear View
TO REPLACE THE BUILT-IN SCREEN MONITOR SWITCH:
1. Remove the power supply unit.
2. Remove the screw.
3. Disconnect the wiring.
4. Replace the switch.
TO ATTACH THE LOUVER L AND R SUB ASS'YS TO THE UNIT:
Push the louver as the following figure.

— 17 —
RE-ASSEMBLING THE AD PCB ASS'Y
WARNING:
Never use the older shield tapes when attaching them to the shield case. Use new shield tapes to insulate
the shield case and the shield tape.
AD PCB unit
Shield tape
Shield case
Adhesive tape

— 18 —
2. Replace the fuse.
CAUTION:
This symbol indicates the F1 fuse on the power supply PCB.
Replace with the same type 5A, 125V fuse.
ATTENTION:
Ce symbole indique le F1 fusible se trouvant sur la carte de circuit electrique.
Ne remplacer ce fusible que par un fusible identique de 5A, 125V.
REPLACING THE FUSE
TO REPLACE THE FUSE ON THE POWER SUPPLY PCB:
1. Remove the power supply PCB unit .
(Refer to Disassembly.)

— 19 —
Electrode
Refrector
3
REPLACING THE LAMP
The precise adjustment of the optical axis is required when the lamp unit is assembled, therefore the indi-
vidual parts are not supplied .
The lamp life is approximately 2,000 hours.
TO REPLACE THE LAMP:
1. Turn the power off.
2. Pull out the AC plug after the fan is stopped. (About 30 seconds)
(Never pull out it while the fan is working.)
3. Remove the rear cover.
WARNING:
1. To avoid the electric shock, be sure to pull out the AC plug before removing the rear cover. The lamp
voltage is 21 kV at start up.
2. Be sure to leave the FV-600 unit at least 30 minutes after pulling out the AC plug, because the lamp unit
is in the high temperature and high pressure while it is working.
There is a risk of explosion when you bump the electrode of the lamp in the high pressure condition.
3. Be careful not to bump the point of the electrode (made by glass) into the chassis.
4. Be careful not to touch the electrode or reflector of the new lamp unit.
5. After replacing the lamp unit, keep the power on while at least 5 minutes once.