Casio VM-1000 Troubleshooting guide

R
VM-1000
APR. 1999
(without price)
(KX-661BXA)
INDEX

CONTENTS
1. SPECIFICATIONS ................................................................................................................... 1
2. ADJUSTMENT ......................................................................................................................... 2
2-1. Adjustments to be done................................................................................................... 2
2-2. Adjustments...................................................................................................................... 2
3. PRINTED CIRCUIT BOARDS.................................................................................................. 6
4. EXPLODED VIEW.................................................................................................................... 9
5. PARTS LIST........................................................................................................................... 11
6. SCHEMATIC DIAGRAMS...................................................................................................... 15

— 1 —
1. SPECIFICATIONS
Monitor (VM-102)
Display Element: High-resolution color LCD
Pixels: 224,640 (234 x 960)
Driver: TFT active matrix
Light Source: Internal backlight; high luminosity fluorescent lamp
Speaker: One (3.6cm) round speaker
Connection Cable: 16-pin RGB (Approximate Length: 2.5 m)
Operating Temperature: 0°C to 40°C
Storage Temperature: -20°C to 60°C
Dimensions: 6-1/8" (W) x 1" (D) x 4-5/8" (H)
15.5 (W) x 2.5 (D) x 11.8 (H) cm (excluding projections)
Approximate Weight: 18.0oz (510g) (including cables)
Video Terminal Unit (VU-100)
Monitor Terminal: 16-pin
Power Cord: Cigarette lighter plug (Approximate Length: 1.8m)
VIDEO IN: PIN plug
AUDIO IN: PIN plugs x 2 (L/R)
Power Supply: 12V DC (car battery, negative ground only)
Approximate Power Consumption: 8.8W (with 12V DC input)
Operating Temperature: 0°C to 40°C
Storage Temperature: -20°C to 60°C
Dimensions: 7-1/16" (W) x 4-13/16" (D) x 1-1/16" (H)
18.0 (W) x 12.3 (D) x 2.7 (H) cm (excluding projections)
Approximate Weight: 18.0oz (510g) (including cables)
Accessories: Two sets of cloth fasteners, audio/video cable (1.5m)
Center Console Box Stand (OS-25FT)
Dimensions: 3-5/8" (W) x 3-1/16" (D) x 2-13/16" (H)
9.2 (W) x 7.8 (D) x 7.1 (H) cm
Approximate Weight: 5.3oz (150g)
Accessories: Two sets of large cloth fasteners, one set of small cloth fasteners,
three cable clamps
Headrest Stand (OS-22R)
Stand Length: 15-3/4"
40.0cm (when extended)
Approximate Weight: 18.0oz (510g)

— 2 —
2. ADJUSTMENTS
2-1. Adjustments to be done
2-2. Adjustments
1. VCC2 adjustment
1) Adjust the output voltage of power supply so that CP120 voltage becomes 11.5 ±0.05V.
2) Adjust VR102 so that CP102 voltage becomes 5.0 ±0.02V.
Input Output
CP102
Power supply Set Digital multimeter
CP120
2. Contrast adjustment
1)Ground CP313
2)Apply 75% color bar signal to video input of the set.
3)Observe CP310 signal with an oscilloscope. Adjust VR310 so that
the amplitude between pedestal and white level is 0.6 ±0.1Vp-p.
Video
Input Output
CP310
Set GND
CP313
SGVideo Signal Oscilloscope
0.6 ±0.1Vp-p
Adjustments Necessary equipment Adjusting block
1. VCC2 voltage adjustment Power supply, Digital multimeter (FD730C) Video unit
2. Contrast adjustment Power supply, Pattern generator, Signal generator, Oscilloscope Video unit
3. Tint, Color adjustments Power supply, Pattern generator, Signal generator, Oscilloscope Video unit
4. VCC4-1 adjustment Power supply, Oscilloscope M-PCB
5. VCC9 adjustment Power supply, Oscilloscope M-PCB
6. VCO Free Run adjustment Power supply, Video PG, Frequency counter M-PCB
7. V-COM coarse adjustment Power supply, Oscilloscope M-PCB
8. V-COM fine adjustment Power supply, Video PG, V-COM jig, Oscilloscope M-PCB
9. Brightness adjustment Power supply, Video PG, Oscilloscope M-PCB
10. Monostable multivibrator adjustment Power supply, Pattern generator, Oscilloscope M-PCB

— 3 —
3. Tint/Color adjustment
1)Ground CP313 via 33k ohm resistor.
2)Unsolder (open circuit) IF pad HP200.
3)Apply 75% color bar signal to video input of the set.
4)Observe CP337 signal. Adjust VR300 (TINT) and VR301 (COLOR)
so that the difference between the four pulses is within 0.2V.
Video
Input Output
CP337
CP313
Set
Video signal Oscilloscope
GND
33kw
1234
Pulses 2 and 3 are adjusted by TINT
While pulses 1 and 4 are controlled byCOLOR.
4. VCC4-1 adjustment
1) Adjust power supply output so that CP172 voltage becomes 11.5 ±0.05V.
2) Connect a digital multimeter to CP166 and adjust VR161 so that the meter reading is 4.50 ±0.02V.
Output
CP166
Input
DC12V
Power supply Set + monitor Digital multimeter
5. VCC9 adjustment
1)Adjust power supply voltage so that CP172 voltage becomes 11.5 ±0.05V.
2)Connect a digital multimeter to CP163 and adjust VR161 so that the meter reading is 8.3 ±0.3V.
Output
CP163
Input
DC12V
Power supply Set + monitor Digital multimeter

— 4 —
6. VCO Free run adjustment
1)Adjust power supply voltage so that CP172 voltage becomes 11.5 ±0.05V.
2) Connect CP756 and CP757 (VCC4-2).
3) Connect a frequency counter to CP181 and adjust VR751 so that the counter reading is 15.73 ±0.1kHZ.
Output
CP181
CP757(VCC4-2)
CP756
Input
DC12V
Power supply Set + monitor Frequency counter
7. V-COM coarse adjustment
1) Adjust power supply voltage so that CP172 voltage becomes 11.5±0.05V.
2) Connect an oscilloscope to CP802. Observing the oscilloscope, adjust
VR850 so that pulse amplitude is 4.0±0.1V.
3) Adjust VR801so that pulse's "H" level is 0.1 ±0.5V.
Output
CP802
Input
DC12V
Power supply Set + monitor Digital multimeter
4.0 ±0.1V
DClevel=0.1 ±0.5V
8. V-COM fine adjustment
1) Adjust power supply so that CP172 voltage become 11.5 ±0.05V.
2) Apply black raster signal to the set through Video Input terminal and
turn the brightness control dial all the way to the maximum position.
3) Set the adjustment jig on the monitor as shown on the figure above.
4) observe the sensor amplifier output with an oscilloscope. Adjust VR801 so
that 60Hz component becomes minimum.
Set + monitor
Input
Video
Pattern generator
Photo sensor amplifier
Photo diode
Minimize the amplitude.

— 5 —
9. Brightness adjustment
1) Apply color bar signal to video input terminal.
2) Provide trigger pulse from CP802 to an oscilloscope.
3) Connect the oscilloscope to CP804 terminal. Observing the oscilloscope,
adjust VR805 so that the voltage level between
positive and negative pedestal is 4.0 ±0.1V.
4) Perform the same adjustment on CP803 with VR800.
5) Perform the same adjustment on CP805 with VR803.
Input
Video
Output
CP803~CP805
CP802
Set + monitor Oscilloscope
Pattern generator
Trigger
4.0 ±0.1V
10. Contrast adjustment
1) Apply color bar signal to video input terminal.
2) Provide a trigger pulse from CP802 to an oscilloscope.
3) Observing CP804 waveform with the oscilloscope, adjust VR804 so that
voltage level between pedestal and white level is 2.7 ±0.1V.
Input
Video
Output
CP804
CP802
Set + monitor Oscilloscope
Pattern generator
Trigger
2.7 ±0.1V
11. Monostable multivibrator
1) Apply color bar signal to video input terminal.
2) Connect CP760 to an oscilloscope as a trigger.
3) Observe CP760 and CP181 signals at the same time. Adjust VR750 so that
delay time between the two pulses is 1.0 ±0.6µsec. (in case of kx-650) and
0.0 ±0.8µsec. (in case of kx-660).
Input
Video
Output
CP181
CP760
Pattern generator Set + monitor Oscilloscope
Trigger
CP760
CP181
0.1 ±0.1µsec

— 6 —
3. PRINTED CIRCUIT BOARDS
650A-M-A PCB

— 7 —
661B-L PCB (Top View)
NOTE : Parts in the gray areas are not used.

— 8 —
661B-L PCB (Bottom View)
NOTE : Parts in the gray areas are not used.

— 9 —
4. EXPLODED VIEW
Video unit
1
2
10
9
3
S2
S2
S3,S4
S3,S4
S3,S4
S1
S3,S4
4
6
57
8

— 10 —
1
4
2
5
6
7
3
8
10
9
S2
S1 S1
S1
S1 S4
S2
S5
11
13
12
S3
a
a
Monitor

5.PARTS PRICE LIST
VM-1000
Monitor
NItem Code No. Parts Name Specification QPrice Code R
N1 66100341 Name plate AM-K365 K440276A-1 1AF X
N2 66112010 Sensor cover AM-K660 K340585-2 1AL X
3 66111980 Upper case AM-K660 K140268-2 1AI X
4 66140180 Rating plate BXA-K661 K440824-6 1AA X
N5 27251349 TFT-LCD module COD55T5011RN 1EK C
N6 66112587 BLM ass'y K240498*1 1CM B
N7 38511911 CRT CAS-26L5.5-1 1BD A
N8 66140174 PCB-K661B-M ass'y 4 K241153*1 1DL B
N9 38311083 Speaker T036S23C4310 1AY C
N10 66112000 Lower case AM-K650 K140269-1 1AU X
11 66100360 Face shoe AM-K635 K340292-1 1AI X
N12 66100370 Cable clamp AM-K635 K440210-1 1AA X
N13 35021508 Cable connector R41-1571A 1CG C
NS1 66112110 Tapping screw A-K650 K440850-1 8AA X
NS2 58612159 Precision tapping screw 4AA X
NS3 66112120 Precision flathead screw 4AA X
S4 66307430 PS screw with washer AK-K618 K440305-1 3AA X
NS5 58609828 Panhead screw with washer A5112 BTN 2X5 BC 1AA X
Tuner
NItem Code No. Parts Name Specification QPrice Code R
N1 66140190 Upper case BXA-K661 K240242-4 1AX X
N2 10151423 Car plug cord CP-K953W 1AZ X
N3 66140178 PCB -K661B-L ass'y 4 K241152*1 1DJ B
N4 66103260 Lower case AT-K636 K240243-1 1AS X
N5 66140200 Rating plate BXA-K661 K440390-3 1AA X
N6 66140210 Blind A-K661 K441686-1 1AA X
N7 66140220 Blind B-K661 K441687-1 1AB X
N8 66140230 Blind C-K661 K441688-1 1AB X
N9 66101520 Switch blind K635 K440397-1 1AA X
N10 66140240 Spacer BXA-K661 K441690-1 1AB X
NS1 58610003 Precision panhead screw 1AA X
NS2 58609905 Tapping screw 2.6X5 black 2AA X
NS3 58609933 Tapping screw 2.6X5 NI 4AA X
NS4 58610073 Toothed lock washer 3 NI 4AA X
Accessory
NItem Code No. Parts Name Specification QPrice Code R
N-37011139 AV cord YAF11-0745 1AM X
-38511883 Car front stand OS-25FT-(D)-M 1BV X
N-38512115 Rear stand OS-22R-(D) 1CR X
N-66102300 Tape A-K960 K440345-1 1AH X
Note : Q - Quantity per unit
R - Rank
N - New Parts
- 11 -

M PCB
NItem Code No. Parts Name Specification QPrice Code R
Diodes
D170 23901449 Chip schottky diode MA701A-(TX) 1AC C
D172 71011194 Chip diode MA111-(TX) 1AA C
ND173 23602940 Chip zener diode MA3180-H(TX) 1AA C
D174 23901379 Chip schottky diode MA729-(TX) 1AB C
D176 23901379 Chip schottky diode MA729-(TX) 1AB C
D178 71011194 Chip diode MA111-(TX) 1AA C
D179 23601953 Chip zener diode MA3120-M(TX) 1AA C
D180 23901470 Chip diode MA143A-(TX) 1AA C
D500 23701211 Led SLR-342VR3F 1AA C
D750 71011194 Chip diode MA111-(TX) 1AA C
D800 23901470 Chip diode MA143A-(TX) 1AA C
D905 71011194 Chip diode MA111-(TX) 1AA C
D910 71011194 Chip diode MA111-(TX) 1AA C
Fuse
FU160 36320343 Chip fuse SSFC1AR12A4 1AH A
ICs
IC160 21142660 Linear IC FA7611M-TE1 1AS B
IC170 21144816 IC PQ05SZ5U 1AL B
NIC500 21143388 OP amplifier BA10324AF-T1 1AD B
IC650 21141750 Linear IC NJM386-M-T1 1AE B
NIC750 21143794 LSI MSM6780GS-VK-6001 1AX B
IC751 21051414 IC TC7S04F-TE85L 1AC B
NIC800 21145474 IC M52338FP-T1 1AW B
NIC901 21143780 IC TC74HC393AF(TP1) 1AI B
NIC902 21054109 IC TC7S14F(TE85L) 1AC B
Inductors
L160 30131673 Choke coil RCH855-181K 1AD C
NL161 30132387 Choke coil RCH654-102K-C 1AE C
NL165 30132401 Choke coil RCH855-221K 1AC C
L171 30131379 Chip inductor LEM4532-101K-TP 1AB C
L750 30131043 Chip inductor NLC322522-101K-TP 1AB C
NL751 30131400 Chip inductor LK2125-120K-TP 1AA C
NL755 30132394 Chip inductor BK2125HM102-T 1AA C
L760 30131043 Chip inductor NLC322522-101K-TP 1AB C
L761 30131043 Chip inductor NLC322522-101K-TP 1AB C
L800 30131379 Chip inductor LEM4532-101K-TP 1AB C
L801 30131379 Chip inductor LEM4532-101K-TP 1AB C
L900 30132401 Choke coil RCH855-221K 1AC C
Transistors
NQ160 22510868 Transistor 2SB1261K-Z-E1 1AE C
Q161 22520714 Chip transistor 2SD1623S,T-TD 1AC C
Q163 22510189 Chip transistor 2SB1218A-R(TX) 1AA C
Q164 22530133 Chip transistor 2SD1819A-R(TX) 1AA C
Q170 22530133 Chip transistor 2SD1819A-R(TX) 1AA C
Q171 22591540 Digital transistor DTC144EU-T106 1AA C
Q500 22530133 Chip transistor 2SD1819A-R(TX) 1AA C
Q501 22510189 Chip transistor 2SB1218A-R(TX) 1AA C
NQ502 22591029 Digital transistor DTC114EU-T106 1AA C
Q750 22510189 Chip transistor 2SB1218A-R(TX) 1AA C
NQ800 22591106 Chip transistor FMY1-T148 1AA C
Q902 22591540 Digital transistor DTC144EU-T106 1AA C
Note : Q - Quantity per unit
R - Rank
N - New Parts
- 12 -

NItem Code No. Parts Name Specification QPrice Code R
Q910 22530308 Chip transistor 2SD1119-R(TX) 1AC C
Q911 22530308 Chip transistor 2SD1119-R(TX) 1AC C
Q921 22510189 Chip transistor 2SB1218A-R(TX) 1AA C
Q922 22591540 Digital transistor DTC144EU-T106 1AA C
Resistor
NR552 10147758 CDS P1201-01 1AK C
Converter
NT160 30121491 DC/DC converter CST104-004 1AW B
NT900 30121484 Inverter converter 2348(W95-152) 1AW B
Thermistor
TM750
27751092 Chip thermistor 157-154-53015-TP 1AB C
Variable resistors
VR161 27752751 Chip semi-fixed resistor EVN5ESX50B23 1AB C
VR650 27650616 Volume RK09H11T-10KB 1AD C
VR751 27752786 Chip semi-fixed resistor EVN5ESX50B53 1AA C
NVR801 27752793 Chip semi-fixed resistor EVN5ESX50B52 1AA C
VR804 27752800 Chip semi-fixed resistor EVN5ESX50B24 1AA C
VR805 27650623 Volume RK09H11T-20KB 1AD C
VR850 27752758 Chip semi-fixed resistor EVN5ESX50B14 1AA C
L PCB
NItem Code No. Parts Name Specification QPrice Code R
Diodes
D100 23902436 Chip schottky diode RB050L-40TE25 1AC C
D102 23901421 Chip schottky diode MA738-(TX) 1AD C
D105 23602457 Chip zener diode MA3220-L(TX) 1AA C
D300 23901470 Chip diode MA143A-(TX) 1AA C
D350 23900455 Chip diode MA142K-(TX) 1AA C
ND600 23602492 Diode RD9.1EW 1AB C
D602 23602492 Diode RD9.1EW 1AB C
D603 23602492 Diode RD9.1EW 1AB C
D604 23901470 Chip diode MA143A-(TX) 1AA C
D605 23901470 Chip diode MA143A-(TX) 1AA C
F310 38501267 Chroma trap TPS3.58MJ 1AC C
Fuse
FU100 36320469 Fuse PI-251001(F10) 1AE A
Oscillator
H310 25900427 Crystal oscillator NR-18 1AH C
ICs
IC100 21142695 IC FA7615M-TE1 1AT B
IC110 21143773 IC PQ09SZ1U 1AM B
IC300 21142835 Linear IC M51405AFP-T1 1AW B
IC314 21143976 IC BA7046F-T1 1AJ B
IC315 21010618 MOS IC TC7S08F-TE85L 1AC B
NIC612 21144354 IC NJM2234M-T1 1AE B
IC613 21144354 IC NJM2234M-T1 1AE B
NIC615 21143969 IC BA3121F-T1 1AL B
Jack
NJK301 35019912 Jack JPJ1166-010432 1AJ B
Inductors
NL100 38411855 Choke coil LHL10NB151K 1AD C
NL102 30132079 Choke coil RCR-110D-102K 1AI C
Note : Q - Quantity per unit
R - Rank
N - New Parts
- 13 -

NItem Code No. Parts Name Specification QPrice Code R
L310 30130693 Chip inductor MLF2012C150K-TP 1AB C
NL350 30131015 Chip inductor NLC453232-100K-TP 1AA C
L600 30130917 Chip inductor NLC322522-100K-TP 1AB C
Transistors
Q102 22510560 Transistor 2SB1261K 1AD C
Q104 22520588 Chip transistor 2SC2412K-T146R 1AA C
Q303 22501162 Chip transistor 2SA1576A-T106R 1AA C
Q304 22501162 Chip transistor 2SA1576A-T106R 1AA C
Q305 22501162 Chip transistor 2SA1576A-T106R 1AA C
Q315 22520637 Chip transistor 2SC4081-T106R 1AA C
NQ316 22591365 Array transistor FMW1-T148 1AB C
Q611 79110126 Digital transistor DTA144EUA-T106 1AA C
Q621 22520637 Chip transistor 2SC4081-T106R 1AA C
Q622 22520637 Chip transistor 2SC4081-T106R 1AA C
Switch
N
SW100
34121582 Slide switch HSW1847-01-040 1AF B
Variable resistors
NVR102 27752821 Chip semi-fixed resistor EVN5ESX50B13 1AA C
VR300 27752786 Chip semi-fixed resistor EVN5ESX50B53 1AA C
VR301 27752800 Chip semi-fixed resistor EVN5ESX50B24 1AA C
VR310 27752800 Chip semi-fixed resistor EVN5ESX50B24 1AA C
Note : Q - Quantity per unit
R - Rank
N - New Parts
- 14 -

— 15 —
6. SCHEMATIC DIAGRAM
Monitor / M PCB

— 16 —
NOTE : Parts in the gray areas are not used.
Video unit / L PCB (1/2)

— 17 —
NOTE : Parts in the gray areas are not used.
Video unit / L PCB (2/2)

CASIO TECHNO CO.,LTD.
Overseas Service Division
Nishi-Shinjuku Kimuraya Bldg. 1F
5-25, Nishi-Shinjuku 7-Chome
Shinjuku-ku, Tokyo 160-0023, Japan