5-35-2, Hakusan, Bunkyouku, Tokyo, 112-8608 Japan
Service Dept.- 50 kamitoda,Toda-shi,Saitama,335-8511 Japan Tel: 048-443-1111 FAX:048-433-6996
Service Manual
Published by Service Dept.
298-5925-00
Aug.2001 P
Printed in Japan
6.5" Monitor & FM/AM Radio
With CD/MD Changer Control
Model
(QC-6700B for U.S.A.)
Model
(QC-6700K for Other countries)
■SPECIFICATIONS
FM tuner section
Frequency range:87.9MHz to 107.9MHz(VRX610)
87.5MHz to 108.0MHz(VRX610P)
Usable sensitivity:11dBf
50dB quieting sensitivity:
17dBf
Alternate channel selectivity:
75dB
Stereo separation:35dB(1kHz)
Frequency response: 30Hz to 15kHz(
±3dB)
AM tuner section
Frequency range:530kHz to 1710kHz(VRX610)
531kHz to 1629kHz(VRX610P)
Usable sensitivity:25dB
μ
Audio amplifier section
Rated power output:17W×4(20Hz to 20kHz,1%,4Ω)
Maximum power output:
×4
40W
Speaker impedance:4
Ω(4 to 8Ω)
Input/Output section
Video input:1.0±0.2Vp-p
(Input impedance 75
Ω)
Audio output:min.200mVrms
LCD monitor section
Screen size:6.5-inch wide type
Display method:Transmission type TN Liquid
(142mm Width
Crystal Display
Drive method:TFT(thin-film transistor) active
matrix driving
Pixels:280,800(1200
×78mm Height)
×234)
General
Power supply voltage: 14.4V DC
(10.8 to 15.6V allowable)
Ground:Negative
Current consumption: 4.0A(1W)
Auto antenna rated current:
500mA less
Dimensions(mm):Main unit
178(W)×50(H)×157(D)
Remote control unit
44(W)×110(H)×27(D)
Weight:Main unit
Remote control unit
1.7kg30g
(including battery)
■NOTES
※ Use a CeNET extension cable that is less than 20m in
length.(including the Y-adapter CCA-519)
※ We cannot supply PWB with component parts in prin-
ciple. When a circuit on PWB has failure , please repair
it by component parts base. Parts which are not mentioned in service manual are not supplied.
※ CD-ROM discs cannot be played in the CD changer.
※ This unit can display title data for CD-text CDs and user
titles input with this unit.
※ Specifications and design are subject to change without
notice for further improvement.
- 1 -
VRX610
VRX610P
■COMPONENTS
QC-6700B-B/QC-6700K-B,K-C
Main unit−−−−−1
Remote control unitRCB-130-6011
Battery(SUM-3)
Universal mounting bracket300-9677-001
DCP case335-6035-411
Power supply lead854-6356-511
Outer escutcheon940-7715-041
Parts bag(No.1)
Flat head screw(M5×8)714-5008-414
Sems hexagonal bolt(M5
Before repair or inspection, make sure to follow
the instructions so that customers and Engineers
in charge of repair or inspection can avoid suffering any risk or injury.
1. Use specified parts.
The system uses parts with special safety features against
fire and voltage. Use only parts with equivalent characteristics when replacing them.
The use of unspecified parts shall be regarded as remodeling for which we shall not be liable. The onus of
product liability (PL) shall not be our responsibility in cases
where an accident or failure is as a result of unspecified
parts being used.
2. Place the parts and wiring back in their original positions
after replacement or re-wiring.For proper circuit c on -
struction, use of insulation tubes, bonding,gaps to PWB,
etc, is involved. The wiring connection and routing to the
PWB are specially planned using clamps to keep away
from heated and high voltage parts. Ensure that they are
placed back in their original positions after repair or
inspection.If extended damage is caused due to negligence during repair, the legal responsibility shall be with
the repairing company.
3. Check for safety after repair.
Check that the screws, parts and wires are put back securely in their original position after repair. Ensure for
safety reasons there is no possibility of secondary
ploblems around the repaired spots.If extended damage
is caused due to negligence of repair, the legal responsibility shall be with the repairing company.
4. Caution in removal and making wiring connection to the
parts for the automobile.Disconnect the battery terminal
after turning the ignition key off. If wrong wiring connections are made with the battery connected, a short circuit
and/or fire may occur. If extensive damage is caused due
to negligence of repair, the legal responsibility shall be
with the repairing company.
5. Cautions regarding chips.
Do not reuse removed chips even when no abnormality
is observed in their appearance. Always replace them
with new ones. (The chip parts include resistors, capacitors, diodes, transistors, etc). The negative pole of tantalum capacitors is highly susceptible to heat, so use special care when replacing them and check the operation
afterwards.
6. Cautions in handling flexible PWB
Before working with a soldering iron, make sure that the
iron tip temperature is around 270
apply the iron tip repeatedly(more than three times)to the
same patterns. Also take care not to apply the tip with
force.
7. Turn the unit OFF during disassembly and parts replacement. Recheck all work before you apply power to the
unit.
℃. Take care not to
■ERROR DISPLAYS
If an error occurs,one of the following displays is displayed.Take the measures described below to eliminate the problem.
Error display
CD
CD
changer
MD
changer
ERROR 2
ERROR 3
ERROR 6
ERROR 2
ERROR 3
ERROR 6
ERROR H
EEROR 2
ERROR 3
ERROR 6
Note:If an error display other than the ones described above appears, press the reset button.
VRX610
VRX610P
Cause
A CD is caught inside the CD deck and is not ejected.
A CD cannot be played due to scratches,etc.
A CD is loaded upside-down inside the CD deck and
does not play.
A CD inside the CD changer is not loaded.
A CD inside the CD changer cannot be played due to
scratches,etc.
A CD inside the CD changer cannot be played because
it is loaded upside-down.
Displayed when the temperature in the MD changer is
too high and playback has been stopped automatically.
An MD inside the MD changer is not loaded.
An MD inside the MD changer cannot be played due to
scratches,etc.
A MD inside the MD changer cannot be played because
it is loaded upside-down.
Displayed when a non-recorded MD is loaded in the MD
changer.
- 2 -
Measure
This is a failure of CD deck's mechanism.
Replace with a non-scratched,non-warped disc.
Eject the disc then reload it properly.
This is a failure of CD changer's mechanism.
Replace with a non-scratched,non-warped disc.
Eject the disc then reload it properly.
Lower the surrounding temperature and wait for
a while to cool off MD changer.
This is a failure of MD changer's mechanism.
Replace with a non-scratched,non-warped disc.
Eject the disc then reload it properly.
Load a pre-recorded MD in the MD changer.
■TROUBLESHOOTING
Problem
Nothing happens when
buttons are pressd.
Display is not accurate.
Cause
The microprocessor
has malfunction due to
noise,etc.
Measure
Turn off the power,then press the RELEASE lever
and remove the DCP.Press the Reset button for
about 2 seconds with a thin rod.
T h e R e s e t b u t t o n
■CLOCK ADJUSTMENT
1. Press the ADJ button to display the adjustment selection display.
2. Move the JOYSTICK up or down to select CLOCK,then
press ENT at the center of the JOYSTICK to display the
clock adjustment display.
3. Move the JOYSTICK left or right to select HR or MIN,then
move the JOYSTICK up or down to adjust the time.
※The time is displayed in 12-hour format.
4. Pressing ENT at the center of the JOYSTICK when the
cursor is above HR or MIN saves the adjusted value in
memory and simultaneously returns the display to the
previous display(adjustment selection display).
To cancel clock adjustment before completion,use the
JOYSTICK to move the cursor to MENU,then press ENT
at the center of the JOYSTICK.
■ADJUSTMENTS
Dot clock adjustment(at Digital PWB)
1. Turn the screen on,and connect TP601(TEST) to GND.
2. Adjust TC601 so that the reading of the frequency counter
F i g . 1
±0.02MHz.
±0.1μsec.
V O L T S / D I V = 1 V
A
B T I M E / D I V = 0 . 5s e c .
at TP602(VSYNC) is 12MHz
H-sync adjustment(at LCD and LCD PWB)
1. Adjust H-POS VR of the LCD module so that the width
of H-SYNC pulse at 2.5V is 4.6
H S Y w a v e f o r m
H - S Y N C
2 . 5 V
G N D
4 . 6
R e v e r s e s i d e v i e w o f L C D
H - P O S V R
F i g . 2
DC-DC converter output voltage adjustment
(at LCD PWB)
1. Adjust VR701 so that the voltage of TP703 is 5.3±0.02V.
2. Make sure the voltage has become the following value
at each test point.
TP702 : 7.5
TP704 : 13.0
TP701 :
±0.5V
±0.5V
−16.0±0.5V
Frequency of IC706 adjustment(at LCD PWB)
1. Adjust VR708 so that the frequency of TP712 is 144kHz.
VIDEO signal adjustment(at LCD PWB)
(1〜7:NTSC, 8:PAL)
Input the visual signal(10step wave,monochrome,APL=50%,
1.0Vp-p)to the VIDEO input.
1 0 s t e p w a v e
1. BRIGHT voltage confirmation
Make sure the voltage of TP706 is 2.0
γ0 voltage confirmation
2.
Make sure the voltage of TP707 is 1.95
γ2 voltage confirmation
3.
Make sure the voltage of TP708 is 2.15
4. RGB-AMP/CONT-G adjustment
Adjust VR707(RBG AMP) so that VBB voltage of TP710
±0.05V.
is 4.0
Adjust VR703(CONT) so that VBW voltage of TP710 is
±0.05V.
3.8
5. BRT-R Adjustment
Adjust VR705(BRT-R) so that VBB voltage of TP711 is
±0.05V.
4.0
6. BRT-B Adjustment
Adjust VR706(BRT-B) so that VBB voltage of TP709 is
±0.05V.
4.0
7. COM-AMP adjustment
Adjust VR704(COM-AMP) so that the amplitude of TP705
±0.1Vp-p.
is 8.0
8. Burst cleaning adjustment
Input a color ber signal.
Adjust L709 so that the wave form of TP709 is in focus.
B u r s t c l e a n i n g
V O L T S / D I V = 0 . 1 V ( 1 0 : 1 P R O V E )
B T I M E / D I V = 1 0s e c .
A
V
B B
G N D
F i g . 3
F i g . 4
V
B W
±0.1V.
±0.1V.
±0.1V.
VCOM DC bias adjustment
Adjust VR702(VCOM DC) to obtain the optimum contrast.
- 3 -
VRX610
VRX610P
■EXPLANATION OF IC
M30624MG-D71GP 052-6043-21
1. Terminal Description
AV Center System Controller (Tuner, LCD panel, Ce-NET)
pin 1 : LCD COLOR: O : Color control signal output to LCD pan-
pin 2 : LCD HUE: O : Hue control signal output to LCD pan-
el.
el.
pin 3 : IR IN: IN : Signal input from Remote controller.
pin 4 : AMP REM OUT: O : Amplifier ON signal output terminal.
pin 5 : NU: IN : Not in use.
pin 6 : BYTE: IN : Connect to ground.
pin 7 : CNVSS: IN : Connect to ground.
pin 8 : SUB CLCK I: IN : Crystal connection for sub clock.
pin 9 : SUB CLCK O : O : Crystal connection for sub clock.
pin 10 : RESET_: IN : Reset signal input. Negative logic.
pin 11 : X OUT: O : Crystal connection for main clock
(10MHz).
pin 12 : V SS: - : Ground.
pin 13 : X IN: IN : Crystal connection for main clock
(10MHz).
pin 14 : VCC: - : Positive supply voltage.
pin 15 : NMI: IN : Not in use.
pin 16 : ACC DET: IN : ACC ON signal input.
pin 17 : B/U DET: IN : Backup voltage ON signal input.
"L"=Backup OFF.
pin 18 : OPEN/CLOSE : IN : Open/close key input.
pin 19 : 27pinCONNECT: IN : IE bus data detect.
pin 20 : ACC +B ON: O : LCD back light ON signal output.
pin 21 : AV 5V ON: O : 5V power supply ON signal output.
pin 22 : NU: O : Not in use.
pin 23 : PANEL ON: O : LCD panel power on signal output.
pin 24 : BRT: O : LCD panel brightness control signal
output.
pin 25 : NU: IN : Not in use.
pin 26 : IR OUT: O : Signal output to Remote controller.
pin 27 : IE BUS RX: IN : IE Bus communication line.
pin 28 : IE BUS TX: O : IE Bus communication line.
pin 29 : OSD DO: O : Serial data output to OSD IC.
pin 30 : OSD STB: O : Serial strobe output to OSD IC.
pin 31 : OSD SCK: O : Clock pulse output to OSD IC.
pin 32 : PLL CE: O : PLL chip enable signal output.
pin 33 : PLL DO: O : PLL serial data output.
pin 34 : PLL DI: IN : PLL serial data input.
pin 35 : PLL SCK: O : PLL serial clock output.
pin 36 : FM STEREO_ : IN : FM stereo detection signal input.
"L"= Stereo.
pin 37 : NU: IN : Not in use.
pin 38 : NU: IN : Not in use.
pin 39 : AV ON: O : Power supply control signal output.
pin 40 : OSD TSC: O : OSD external memory control signal
output.
pin 41 : NU: IN : Not in use.
pin 42 : VOL CLK: O : Clock pulse output to electric volume
pin 43 : VOL DO: O : Serial data output to electric volume
IC.
IC.
pin 44 : OPEN: IN : Panel open detection signal input.
pin 45 : CLOSE: IN : Panel close detection signal input.
pin 46 : NU: O : Not in use.
pin 47 : PAL_/NTSC: O : "L"= PAL, "H"= NTSC.
pin 48 : EXIO STB: O : Strobe pulse output to the extended
pin 49 : SEL 2: IN : AUX IN select signal input.
pin 50 : SEL 3: IN : AUX IN select signal input.
ports IC.
Ref table 1.
Ref table 1.
pin 51 : NU: IN : Not in use.
pin 52 : NU: IN : Not in use.
pin 53 : NU: IN : Not in use.
pin 54 : NU: IN : Not in use.
pin 55 : V SEL 1: O : Image source select signal output.
pin 56 : V SEL 2: O : Image source select signal output.
Ref. Table 2.
Ref. Table 2.
pin 57 : BLANK: O : Blanking signal output.
VRX610
VRX610P
pin 58 : NV ON: O : "H"= Navigation RGB, "L"= OSD RGB.
pin 59 : VIDEO_/RGB : O : Image select signal input.
"H"= OSD, RGB navigation.
"L"= Black box tuner, Composite navi-
gation.
pin 60 : VCC: - : Positive supply voltage.
pin 61 : NU: IN : Not in use..
pin 62 : VS S: IN : Ground.
pin 63 : IR SEL: O : Remote control signal select.
"L"= Optical input."H"= Micro computer
signal output.
pin 64 : PARKING IN: IN : "H"= Parking brake ON.
pin 65 : MOTOR F: O : Open/Close control signal output.
pin 66 : MOTOR R: O : Open/Close control signal output.
Ref table 3.
Ref table 3.
pin 67 : MOTOR ON: O : Motor power supply ON signal output.
pin 68 : AMP MUTE: O : "H"= Amplifier Mute.
pin 69 : NAVI MUTE: O : "L"= Navigation audio signal ON.
pin 70 : KEY REQ: IN : LCD driver key request signal input.
pin 71 : ILL DETEC_: IN : Illumination detect signal input.
Negative logic.
pin 72 : TILT_: IN : "L"= Tilt, "H"= Horizontal.
pin 73 : POWER SW: IN : Power key switch input.
pin 74 : SYSTM MUTE : O : System mute.
pin 75 : LINE MUTE: O : Line mute.
pin 76 : BUS A OUT: O : Ce-NET bus input control.
"L"= Audio input.
"H"= Audio output.
pin 77 : SYSTM ACC: O : Ce-NET bus system ACC.
pin 78 : DISTINATION : IN : Distination select. "L"= USA, "H"= 3rd
area.
pin 79 : AMP STNBY_ : O : "H"= Amplifier ON.
pin 80 : NU: O : Not in use.
pin 81 : PHON INT: IN : Telephone interrupt signal input.
pin 82 : NU: IN : Not in use.
pin 83 : NU: IN : Not in use.
pin 84 : FM SD: IN : FM SD input.
pin 85 : AM SD: IN : AM SD input.
pin 86 : NU: IN : Not in use.
pin 87 : NU: O : Not in use.
pin 88 : NU: O : Not in use.
pin 89 : NU: IN : Not in use.
pin 90 : NU: IN : Not in use.
pin 91 : NU: IN : Not in use.
pin 92 : NU: IN : Not in use.
pin 93 : SD SPEED: O : Station detect speed control.
"H"= Normal, "L"= Speed up.
pin 94 : A VSS: - : Ground.
pin 95 : DCP CE: O : DCP chip enable.
pin 96 : Vref: - : Connect to ground.
pin 97 : +5V: - : +5V.
pin 98 : DCP DI: IN : DCP Serial data input.
pin 99 : DCP DO: O : DCP serial data output.
pin100 : DCP CK: O : DCP clock pulse output.
Table 1. AUX IN select signal input
Sel 3 (pin50)Sel 2 (pin49)
No connectionLL
No connectionLH
Image signal interruptHL
Image sound signal interruptHH
Table 2. Image source select signal output.
Video muteLL
NavigationLH
Black box tunerHL
Black box tunerHH
Vsel 2 (pin56)Vsel 1 (pin55)
Table 3. Open/Close control signal output.
Motor F (pin65)Motor R (pin66)
FreeLL
OpenLH
CloseHL
BrakeHH
- 4 -
■BLOCK DIAGRAM
K E Y
I N P U T
S P E A K E R
I R 9 0 1
6 . 5 i n c h L C D
I R R E M
I R S I G
7 . 5 V
5 . 3 V
1 3 . 0 V
- 1 6 . 0 V
I L L
I C 9 0 1
D C P C O N T
I C 7 0 2
D C / D C
P O W E R
I C 7 0 6
I N V E R T E R
I C 7 0 7
N T S C / P A L
D E C O D E R
Y S
R G B
S Y N C
V I D E O
L C D H . V
N T S C / P A L
S W
L C D s e c t i o n
V O B
B L K
I C 6 0 8
I C 6 0 7
R G B C O N T
B L K
B L K
V I D / R G B
I C 6 0 1
R G B S W
V I D / R G B
R G B
S Y N C S W
V I D / R G B
V I D E O
S U P P L Y
E X I T S T B Y
I C 7 0 1
E X I / O
K E Y R E Q
D C P C E
D C P C L K
D C P D A T A
I C 6 0 2
8 M R O M
I C 6 0 9
C S
S C L K
S I N
A C C 5 V
M E M O 5 V
B / U 5 V
D C P s e c t i o n
I C 1 0 1
( 4 0 W x 4 )
K E Y I N P U T
P O W E R A M P
A M P S T B Y
A M P M U T E
4 - C H L I N E O U T
M U T E
Q 1 0 7
- 1 1 0
P O W E R S W
O P E N / C L O S E S W
R E S E T S W
T I L T S W
O P E N
C L O S E
I C 1 1 6 , 1 1 7
S Y S M U T E
( A M P )
I C 1 0 2 , 1 0 6
I C 1 0 3
E - V O L
C L O C K
D A T A
P H O T O
S E N S O R
M 6 2 4 1 9
L I N E M U T E
R A D I O
B U S A U D I O
Q 1 0 3 - 1 0 6
L I N E M U T E
B - O S D C
M
I C 6 0 3
I C 1 1 5
I C 5 0 4
M O T O R
D R I V E R
C R Y S T A L
N T S C 1 4 . 3 M
P A L 1 7 . 7 M
M - F
N / _ P
M - R
I C 1 0 9
B U F F E R
A U D I O I N
I C 1 1 0 , 1 1 1
B A L A N C E
I N
B A L A N C E
O U T
B U S A U D I O
I C 1 1 3
A U D I O - S W
B U S O N
A C C O N
D I
D O
C L K
A V 9 V
M O T O N
A V O N
A C C O N
B / U D E T
Q 1 2 2
Q 5 1 1
1 2 V
9 V
R E G
R E G
A V O N
9 V
R E G
M O T O N
A C C O N
P W R
- A M P
R S T / B U D E T
I C 5 0 1 , 5 0 3
5 V
R E G
A C C + B
M O T 1 2 V
R E S E T
V I D E O
V I D E O I F
V S E L
I C 6 1 0
Q 5 0 4 , 5 0 4
I C 1 1 2 , Q 1 2 4
V I D E O
S E L 2
S E L 3
V I D E O
A U D I O I N
+ B
C e - N E T
B / U
M I N I D I N
8 P
V I D E O I N
I C 5 0 2
F L P N
I L L
P K B
T E L
Q 1 2 0 , 1 2 1 , 5 1 8
1 3 8 , 5 0 8
I L L
P K B
T E L
I L L
S Y S T E M C O N T R O L
A C C
I C 1 1 4
I C 5 0 3
A C C D E T
E X T - I N P U T
A C C
T E L
P K B
A C C
C A 0 0 0 8 A M
B U S D R I V E R
B U S +
B U S -
- 5 -
C E
P L L
I C 3
I F - R E Q
F M +
A M +
1 0 M H z
M I X
I C 1 0 4
F M
A M
B L 1
S T
A M S D
F M S D
F M / A M T U N E R
B U S A U D I O
B U S +
B U S -
A N T
C e - N E T
1 3 P
VRX610
VRX610P
■EXPLODED VIEW・PARTS LIST
DCP section
1 0
5
4
3
7
9
2 8
2
1
6
2 9
1 1
1 2
1 3
2 9
1 5
2 6
2 3
1 4
2 1
2 0
1 9
1 8
1 7
1 6
2 4
8
2 5
2 6
2 2
2 7
3 0
2 6
LCD module section
Note:
Please refer to page 8 when you release the LCD
module from the main unit.