Jvc KDLX 330 R Service Manual

Page 1

KD-LX330RIKD-LX110R

JVB
SERVICE MANUAL

CD RECEIVER

KD-LX330RIKD-LX1 10R

w "E Area Suffix
@ @ O KD-LX330R
2 T E ------ Continental Europe
J. EX --------- Central Europe
Omani-D
KD-LX110R
E ------ Continental Europe
COMMIT
[Elise
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III
Difference piont LINE IN SUBWOOFER OUT nuke
KD-LX330R o O
KD-LXI 10R X X
Contents
Safety preccaution ------------------------- I-2
Preventing static electricity -------------- 1-3
Disassembly method ---------------------- 1-4
Adjustment method ------------------------ 1-13

Extension cord connectiong method l-l 4
Functions of the mechanism

under the service mode ----------------- 1-16
Flow of functional operation

until TOC read ----------------------------- 1-18
Maintenance of laser pickup ------------ 1-20
Replacement of laser pickup ------------ 1-20
Description of major le ----------------- 1-21 ~37

No.49639

COPYRIGHT © 2001 VICTOR COMPANY OF JAPAN, LTD.
J un. 2001

Page 2

KD-LX330R/KD-LXI 10R

Safety precaution

A CAUTION Burrs formed during molding may be left over on some parts of the chassis. Therefore,
pay attention to such burrs in the case of preforming repair of this system.

A mung Please use enough caution not to see the beam directly or touch it in case of an
adjustment or operation check

1-2

Page 19

I Feed Section

KD-LX330R/KD-LX110R

*r
W Approx.1.2 V
_;

Is the tracking error signal
output at lCSOi 12"?

2.. N .

'12".

YES
Is the voltage output at E, Is the wiring for ICSZi _, ls 5V present at |CS81 3, Check CD 9V
|C521 pin "53" 5v or CV? (90) ~ (100) correct? pin "11? and 5V-
NO i YES
YES Check the vicinity of
|C521.
NO YES
ls 4V present at both _> Is 6V or 2V present at _> Check the feed motor
sides of the feed motor? |C581 5" and "6? connection wiring.
it YES i NO
Check the feed motor. Check IC581.
I Focus Section
NO
When the lens is -> Check the circuits in
moving: the vicinity of lC581
"""""""" pins "15" ~ 18".
/V\ 1 4v
"""""""" YES
Does the S-search l
waveform appear at
lC581 pins "17" and 18"? YES _ Check the pickup and
7 its connections.
I Spindle Section
NO NO NO
- _, ls 4V present at IC581 _, Is 4V present at IC521 _ Check K3501 and
,7 7
Is the disk rotated. pins 7.. and "8" 7 pin 55.. ? ICSZi.
YES
i YES 1 YES *
Does the RF signal _ Check Egg/4cm), Of
appear atTPi? Check the spindle motor -
and its wiring.
l YES NO
Is the RF waveform atTPi _, Check the circuits in the
distorted? vicinity of |C50i "19" ~
NO .
24" or the pickup
i YES
Proceed to the Tracking
section
I Tracking Section
When the disc is rotated
at first:
YES Check the circuit in the YES Check the pickup and
-> vicinity of |C501 pins its connections.

l YES

Check IC521.

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Page 21

Description of major ICs

I FAN8037 (l0661) : CD driver
1. Pin layout & Block diagram

KD-LX330R/KD-LX110R

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2. Pin function

:32 Symbol l/O Function gig Symbol l/O Function
1 |N2+ l CH2 op-amp input(+) 25 DO7+ 0 CH7 drive output(+)
2 IN2- l CH2 op-amp input(-) 26 D06- 0 CH6 drive output(-)
3 OUT2 0 CH2 op-amp output 27 D06+ 0 CH6 drive output(+)
4 |N3+ | CH3 op-amp input(+) 28 PGND2 - Power ground2
5 IN3- l Ch3 op-amp input(-) 29 D05- 0 CH5 drive output(-)
6 OUT3 0 CH3 op-amp output 30 D05+ 0 CH5 drive output(+)
7 IN4+ l CH4 op-amp input(+) 31 D04- 0 CH4 drive output(-)
8 IN4- l CH4 op-amp input(-) 32 DO4+ 0 CH4 drive output(+)
9 OUT4 0 CH4 op-amp output(+) 33 D03- 0 CH3 drive output(-)
10 CTL1 l CH5 motor speed control 34 DO3+ 0 CH3 drive output(+)
11 FWD1 l CH5 forward input 35 PGND1 - Power ground1
12 REV1 l CH5 reverse input 36 D02- 0 CH2 drive output(-)
13 CTL2 | CH6 motor speed control 37 D02+ O CH2 drive output(+)
14 FWD2 l CH6 forward input 38 D01- 0 CH1 drive output(-)
15 REV2 l CH6 reverse input 39 DO1+ 0 CH1 drive output(+)
16 SGND - Signal ground 40 PVCC1 - Power supply voltage
17 FWD3 l CH7 forward input 41 REGOX l Regulator feedback input
18 REV3 l CH7 reverse input 42 REGX O Regulator output
19 CTL3 l CH7 motor speed control 43 RESX l Regulator reset input
20 SB I Stand by 44 VREF l Bias voltage input
21 PS | Power save 45 SVCC - Signal supply voltage
22 MUTE | All mute 46 |N1+ l CH1 op-amp input(+)
23 PVCC2 - Power supply voltage 47 IN1- l CH1 op-amp input(-)
24 D07- 0 CH7 drive output(-) 48 OUT1 0 CH1 op-amp output

1-21

Page 31

KD-LX330R/KD-LX11OR

I LC75811W (IC602) : LCD driver

1 . Pin layout
60 ~ 41
4O
2
21
1 ~ 20
a E
2. Block diagram 3 g
E E Q 2
0-" O 8 E $ 777777777777777777777777777777 .-
0 U U) U) U) U)
Cl D D l3 B D
COMMON <-o-> SEGMENT DRIVER
DRIVER l
T- LATCH
VDD [l-> 1 1 T
CGRAM CGROM
VLCD CF e 'NSTRUCT'ON ADGROAM 5x9x16 5x9x240
DECODER - ,
VLCD1 CF bits bits bits
VLCDZ [l- 7
ADDRESS DCRAM
INSTRUCTION
VLCD3 D- REGISTER COU'EFER 4;?
VSS \
E P ADDRESS
REGISTER
TIMING T
GENERATOR SHIFT REGISTER
R-ES 3-» 1
CLOCK T
GENERATOR CCB INTERFACE
E El D D D
5 O 5 d 5
m U
. . o W
3. PIn function 0
Pin No. Symbol llO Function
1 ~58 83~S60 0 Segment driver output terminal
59 COMO O Common driver output terminal
60~65 COM3~COM8 0 Common driver output terminal
66 COlVl1 O Common driver output terminal
67 VDD - Power supply for logic section
68 VLCD - Power supply for LCD driver section
69~71 VLCD1~VLCD3 l LCD\KMageinpmtenmna
72 V88 - Connect to ground
73 OSCO O Oscillation output terminal
74 OSCI l Oscillation input terminal
75 RES | Reset signal input terminal
76 CE I Chip enable input terminal
77 CL l Clock signal input terminal
78 DI | Serial data input terminal
79~80 S1~82 O Seqmrnt driver output terminal

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