Jvc KSLX 200 R Schematic

Page 1

KS- LX200 R

JVB
SERVICE MANUAL

CASSETTE RECEIVER

KS- LX200R

Area Suffix

E ----- Continental Europe
EX -------- Central Europe

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ilk/DIS] /

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Contents
Safety precaution ...................... 1-2
Disassembly method ................... 1-3
Adjustment method ..................... 1-13
Description of major ICs ............... 1.17
This service manual is printed on 100% recycled paper. [10-49573

COPYRIGHT if 2000 VICTOR COMPANY OF JAPAN, LTD.
1 Oct. 2000

Page 2

KS-LX200R

Description of major le

I BA4905-V3 (IC961) : Regulator
1.Pin layout

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2.Block diagram

REGULATOR

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E
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5
3
E
o.

Overvoltage

1 2 3 4 5 e 7 s 10 11
RESET COMP VDD 5.7V CD 8V vcc AJ
EXT ACC AUDIO 9v CTRL ILM 10v GND
3.Pin function
Pin no. Symbol Function

1 RESET If VDD voltage becomes 4V or less.RESET output becomes low level.

2 EXT output This output voltage is approximately 0.5V lower than VCC. and max
output current is 300mA.

3 COMP output A voltage supply for ACC block. This output voltage is approximately
0.7V lower than VDD'S.The max output current is 100mA.

4 ACC Control of the COMP output by inputting voltage.

5 VDD output This output voltage is 5.7V, and max output current is 100mA.
This voltage supply is for microcomputer. Whenever back up voltage
supply is connected, the output keeps on running.

6 AUDIO output This output voltage is 9.0V, and max output current is 500mA.
This voltage supply for AUDIO.

7 CD output This output voltage is 8.0V, and max output current is 1A.
This voltage supply for CD.

8 CTRL Output selector of CD. AUDIO, ILM and EXT.

9 VCC To be connected with the BACK UP of car.

10 ILM output This output voltage is 10V, and max output current is 500mA.
Output voltage is adjustable.

11 AJ Putting a resistance between ILM and AJ or between AJ and GND
makes ILM output voltage adjustable.

12 GND Ground.

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3. Pin function

KS-LX200R

Pin No. Symbol I/O Function Pin No. Symbol |/O Function
1 IN1.2 I CH 1 op-amp input (-) 25 D06.1 O CH 6 drive outout
2 OUT1 O CH 1 op-amp output 26 D052 0 CH 5 drive output
3 IN2.1 I CH 2 op-amp input (+) 27 D05.1 O CH 5 drive output
4 IN2.2 I CH 2 op-amp input (-) 28 804.2 0 CH 4 drive output
5 OUT2 O CH 2 op-amp output 29 D041 0 CH 4 drive output
6 IN3.1 I CH 3 op-amp input (+) 30 PGND Power ground
7 IN3.2 I CH 3 op-amp input (-) 31 PGND - Power ground
8 OUT3 O CH 3 op-amp output 32 D032 0 CH 3 drive output
9 IN4.1 I CH 4 op-amp input(+) 33 D031 0 CH 3 drive output
10 IN4.2 I CH 4 op-amp input (-) 34 PGND Power ground
11 OUT4 O CH 4 op-amp output 35 D022 0 CH 2 drive output
12 CTU I (153:1 tSmrlnotor speed 36 3021 o CH 2 drive output
13 FWD1 I CH 5 forward input 37 $012 0 CH 1 drive output
14 REW1 I CH 5 reverse input 38 DO1.1 O CH 1 drive output
15 cm . C 39 Pvccz - irregrirrpéwgtagrs,CH4)
16 FEDz | CH 6 torward input 40 OPOUT o Opamp output
17 Ftsz I CH 6 reverse input 41 OP|N(-) | Opamp input (-)
18 SGND Signal ground 42 OP|N(+) | Opamp input (+)
19 MUTE1 | CH 1 mute 43 RESSO | Regulator 5V reset
20 MUTE2 | CH 2 mute 44 SVCC . Signal supply voltage
21 MUTE3 | CH 3 mute 45 REF 1 Bias voltage input
22 MUTE4 | CH 4 mute 45 REG050 o regulator 5V output
23 PVCC1 ngverrHsusppévaggtage 47 REG50 o Regulator output
24 D062 0 CH 6 drive output 48 IN1.1 I CH 1 opamp onput (+)

I BU4066BCF-X 00322) : Switch

1.Pin I ayout

2.Block diagram

I/O 3

1-21