Toyota CQ-LS7230K User manual

General
Power Supply DC 12V (11V - 16V),
Test Voltage 26.4V
Negative Ground
Current Consumption Less than 3.0A
Power Output 20W×4ch
AM Radio
Frequency Range 531 - 1,602kHz
Usable Sensitivity 30dB(µV) (S/N 20dB)
Signal to Noise Ratio 45dB or more
FM Stereo Radio
Frequency Range 87.5 - 108.0MHz
Usable Sensitivity 7dB/µV (S/N 30dB)
Signal to Noise Ratio 50dB or more
CQ-LS7230K
AM/FM MPX Electronic Tuning Radio
with Stereo Cassette Tape Player
PART No. : 86120-02360
VEHICLE : COROLLA
DESTINATION : INDIA
PRODUCED AFTER : Nov., 2002
Cassette Player
Reproduction System 4-Track, 2-Program Stereo
Tape Speed 4.76cm/sec.
Wow and Flutter Less than 0.09% (WRMS)
Signal to Noise Ratio 40dB or more
Dimensions** 178×50×165mm
Weight** 1.3kg
* Specifications and the design are subject to possible modification
without notice due to improvements.
** Dimensions and Weight shown are approximate.
Dolby noise reduction manufactured under license from Dolby
Laboratories Licensing Corporation.
“Dolby” and the double-D symbol are trade marks of Dolby
Laboratories Licensing Corporation.
Specification*

1 FEATUERS 2
2 REAR VIEW AND CONNECTORS 2
3 FRONT VIEW AND FUNCTIONS 3
4 WIRING CONNECTION 4
5 BLOCK DIAGRAM 5
6 TERMINALS DESCRIPTION 6
7 PACKAGE AND IC BLOCK DIAGRAM 7
8 ALIGNMENT INSTRUCTIONS 9
• • •
• PLL (Phase Locked Loop) synthesized tuning.
• • •
• 12-station preset (6-AM, 6-FM).
• • •
• Scan tuning function.
• • •
• Dolby B NR function.
9 ALIGNMENT POINTS 9
10 REPLACEMENT PARTS LIST 10
11 EXPLODED VIEW (Unit) 14
12 TAPE PLAYER PARTS 15
13 EXPLODED VIEW (Tape Deck) 16
14 WIRING DIAGRAM 17
15 SCHEMATIC DIAGRAM -1 23
16 SCHEMATIC DIAGRAM-2 25
• • •
• CD changer control.
• • •
• Electronic volume control.
• • •
• Fix-Equalizing function.
CONTENTS
Page Page
1 FEATUERS
2 REAR VIEW AND CONNECTORS
2
CQ-LS7230K

3 FRONT VIEW AND FUNCTIONS
3
CQ-LS7230K

4 WIRING CONNECTION
4
CQ-LS7230K

5 BLOCK DIAGRAM
5
CQ-LS7230K

6.1. Main Block
IC601 : C2BBGE000647
Pin
No. Port Description I/O (V)
1 LCD-CL Clock for LCD data O 0
2 LCD-DI LCD data O 0
3 SEC TIME No connection - -
4 GND Ground - 0
5 LCD.ON Not used - -
6 ILL.ON Not used - -
7 VDD +5V power supply - 5
8 SEC ON Not used - -
9~12 - Not used - -
13 M1-B Tape main motor control O 0
14 M1-A Tape main motor control O 0
15 - (Connecting tp ground) - 0
16 - (Connecting tp ground) - 0
17 POM SO Not used - -
18 ROM SI Not used - -
19 ROM CS Not used - -
20 ROM CSK Not used - -
21 LATH Data latch O 5
22 A/B Tape FF/REW switch I 0
23 /MTL Metal tape mode O 5
24 DATA Data for system power IC O 0
25 CLK Clock for system power IC O 0
26 STBY System power IC stand-by O 5
27 /MS TPS no sound detection I 0
28 MS PL/FF MS mode selection O 0
29 T.LOAD Tape loading detection I 0
30 /DOLBY Dolby control O 0
31 CAM-A/B Tape side detection I 5
32 /T.IN Tape insert detection I 0
33 GND Ground - 0
34 TE2 Tape end detection I 1.8
35 TE1 Tape end detection I 2.2
36, 37 DIV1,2 Not used - -
38 /M2F Tape solenoid control O 0.5
39 SEC LED Not used - -
40 MSM MS gain control O 0
41 /EQ Metal tape detection I 0
42 BIT3 Tape moe SW I 0
43 BIT2 Tape mode SW I 4.9
44 BIT1 Tape mode SW I 4.9
45 MUTE Mute output O 0
46 BEEP Beep output O 0
47 VOL DAT Data for electronic vol. O 0
48 VOL CLK Clock for electronic vol. O 0
49 NC No connection - -
50 TEST (+5V pull-up) - 4.2
51 MAIN Not used - -
52 PLL.DO PLL data I 4.9
53 PLL.CLK PLL clock O 0
54 PLL.DI PLL data O 0
55 PLL.CE PLL chip enabling O 0
56 LAN-OUT LAN data O 0
57 LAN-IN LAN data I 0.2
58 ST FM stereo detection I 0
59 SD B/S detection I 0
60 /RESET System reset I 3.5
61 /ILL-DET illumi. on detection I 3.5
62 +B-DET Battery level detection I 3.2
63 ACC-DET ACC level detection I 3.4
64 /T.EJECT Tape eject I 3.4
65 AN NK Not used - -
66 MODE B Not used - -
67 MODE A Not used - -
68 VDD +5V power supply - 4.9
69 X1 Crystal oscillatorv terminal - 2.4
70 X2 Crystal oscillatorv terminal - 0.6
71 GND Ground - 0
72 XT2 Not used - -
73 XT1 Not used - -
74 AVDD +5V power supply - 5
75 ACC 5V +5V power supply - 5
76 VSM Not used - -
77 MAIN-VOL Main volume level I 0
78 REO.IN (Ground pull-down) - 0
79 LCD-DO LCD data I 4.9
80 LCD-CE LCD driver enabling O 0
6.2. Display Block
IC601 : YEAMLC75853
Pin
No. Port Description I/O (V)
1-20 SEG1-20 LCD segment data O 2.6
21-28 - Not used - -
29-40 SEG29-40 LCD segment data O 2.6
41-43 COM1-3 LCD common output O 2.6
44 S41 Not used - -
45-49 KS1-6 Key scan signal O 5.2
50 KI1 Not used - -
51-54 KI2-5 Key data input I 0
55 TEST (Connecting to ground) - 0
56 VDD +5V power supply - 5.2
57 VDD1 Ground through capacitor - 3.5
58 VDD2 Ground through capacitor - 1.8
59 VSS Ground - 0
60 OSC CR oscillator - 4.1
61 DO key data output O 5.2
62 CE Chip enable I 0
63 CLK LCD clock I 0
64 DI LCD data input I 0
6 TERMINALS DESCRIPTION
6
CQ-LS7230K

7 PACKAGE AND IC BLOCK DIAGRAM
7.1. Main Block
PA101 : YEP0PTA512B0
IC451 : YEAMLC72135C
7
CQ-LS7230K

IC201 : YEAMM62435FA
IC231 : YEAMTA8251AH
IC631 : YEAMLB1930MT
IC651 : YEAMH12187ER
IC701 : C0DBZHZ00006
8
CQ-LS7230K

IC751 : AN8065SE1
• • •
• Power Supply Voltage : DC13.2V
• • •
• Output Impedance : 4Ω
• • •
• Output Power : 0.5W
• • •
• Balance, Fader Control : center
• • •
• Bass, Treble Control : Center
• • •
• Dolby NR: OFF
8 ALIGNMENT INSTRUCTIONS
8.1. Alignment Conditions
Note :
Do not align the FM/AM package block. When the package block is necessary, it will be supplied already aligned at the
factory.
8.2. Dolby NR Alignment
Step Alignment Item Test Tape VTVM Connection Adjust Remarks
(1) DOLBY NR Rch RFKZ0038 TP201 VR201 Adjust for 388mV ±1.0dB
(2) DOLBY NR Lch RFKZ0038 TP301 VR301 Adjust for 388mV ±1.0dB
9 ALIGNMENT POINTS
9
CQ-LS7230K

10 REPLACEMENT PARTS
LIST
Notes :
1.Be sure to make your orders of replacement parts
according to this list.
2.Important safety notice: Components, identified by mark
have special characteristics important for safety. When
replacing any of these components, use only
manufacturer´s specified parts.
3.Location keys in the remarks column indicates the general
location of the parts shown in the exploded drawing, as in a
road map.
4.The marking (RTL) indicates that Retention Time is limited
for this item. After the discontinuation of assembly in
production, the item will continue to be available for a
specific period of time. The retention period of availability is
dependent on the type of assembly, and in accordance with
the laws governing part and product retention. After the end
of this period, the assembly will no longer be available.
Ref.
No. Part No. Part Name & Description Remarks
[E6876] Main Block
IC´s and TRANSISTORs
IC201 YEAMM62435FA IC
IC231 YEAMTA8251AH IC
IC451 YEAMLC72135C IC
IC601 C2BBGE000647 IC
IC631 YEAMLB1930MT IC
IC651 YEAMH12187ER IC
IC701 C0DBZHZ00006 IC
IC751 AN8065SE1 IC
PA101 YEP0PTA512B0 Electronic Tuner
Q241 YEANA114WKTX Transistor
Q242 B1GBCFNN0004 Transistor
Q701 YEAN2SA1757 Transistor
Q702 YEANHQ1F3PT1 Transistor
Q751 B1GBCFNN0004 Transistor
Q761 B1BBAC000007 Transistor
Q763 B1GDCFJN0004 Transistor
Q765 B1BBAC000007 Transistor
Q766 B1GDCFJN0004 Transistor
DIODEs
D201 YEADRD39M2T2 Diode
D241 B0ACCK000005 Diode
D242 B0ACCK000005 Diode
D243 B0ACCK000005 Diode
D631 MA152WATX Diode
D632 YEADSR1544TL Diode
D633 YEADSR1544TL Diode
D651 YEADRD56M2T1 Diode
D652 YEADRD56M2T1 Diode
D701 YEAD30D2FC6 Diode
D702 YEADRB051L40 Diode
D712 YEADSR1544TL Diode
D761 YEADRD91M1T2 Diode
D762 MA3068MTX Diode
CAPACITORs
C50 YECUS1H102KX Ceramic, 1000PF 50WV
C101 YECUS1E223KX Ceramic, 0.022µF 25WV
C102 F2A1A221A146 Electrolytic, 220µF 10WV
C103 YECUS1C154KX Ceramic, 0.15µF 16WV
C104 YECUS1C823KX Ceramic, 0.082µF 16WV
C105 F2A1C100A150 Electrolytic, 10µF 16WV
Ref.
No. Part No. Part Name & Description Remarks
C107 YECUS1E223KX Ceramic, 0.022µF 25WV
C108 YECUS1H153KX Ceramic, 0.015µF 50WV
C121 YECUS1H183KX Ceramic, 0.018µF 50WV
C124 YECUS1E273KX Ceramic, 0.027µF 25WV
C131 YECUS1H183KX Ceramic, 0.018µF 50WV
C134 YECUS1E273KX Ceramic, 0.027µF 25WV
C151 F2A1A221A146 Electrolytic, 220µF 10WV
C152 YECUS1H471JM Ceramic, 470PF 50WV
C153 YECUS1H471JM Ceramic, 470PF 50WV
C154 YECUS1E223KX Ceramic, 0.022µF 25WV
C155 YECUS1H103KX Ceramic, 0.01µF 50WV
C157 YECUS1E223KX Ceramic, 0.022µF 25WV
C158 YECUS1E223KX Ceramic, 0.022µF 25WV
C201 F1J1C184A006 Ceramic, 0.18µF 16WV
C202 YECUS1C683KX Ceramic, 0.068µF 16WV
C203 YECUS1C683KX Ceramic, 0.068µF 16WV
C204 YECUS1H103KX Ceramic, 0.01µF 50WV
C205 YECUS1A105KX Ceramic, 1µF 10WV
C206 YECUS1E223KX Ceramic, 0.022µF 25WV
C207 YECUS1H561JM Ceramic, 560PF 50WV
C208 YECUS1A105KX Ceramic, 1µF 10WV
C211 YECUS1A105KX Ceramic, 1µF 10WV
C212 YECUS1A105KX Ceramic, 1µF 10WV
C221 YECUV1C224KX Ceramic, 0.22µF 16WV
C222 YECUV1C224KX Ceramic, 0.22µF 16WV
C230 F2A1C470A150 Electrolytic, 47µF 16WV
C231 YECUV1C124KX Ceramic, 0.12µF 16WV
C232 YECUV1C124KX Ceramic, 0.12µF 16WV
C233 YECUV1C124KX Ceramic, 0.12µF 16WV
C234 YECUV1C124KX Ceramic, 0.12µF 16WV
C243 F2A1H1R0A154 Electrolytic, 1µF 50WV
C261 F2A1A101A144 Electrolytic, 100µF 10WV
C262 YECUS1H103KX Ceramic, 0.01µF 50WV
C263 YECUS1H103KX Ceramic, 0.01µF 50WV
C264 F2A1C470A150 Electrolytic, 47µF 16WV
C265 F2A0J331A164 Electrolytic, 330µF 6.3WV
C266 YECUS1H103KX Ceramic, 0.01µF 50WV
C278 YECUS1A105KX Ceramic, 1µF 10WV
C279 YECUS1A105KX Ceramic, 1µF 10WV
C301 F1J1C184A006 Ceramic, 0.18µF 16WV
C302 YECUS1C683KX Ceramic, 0.068µF 16WV
C303 YECUS1C683KX Ceramic, 0.068µF 16WV
C304 YECUS1H103KX Ceramic, 0.01µF 50WV
C305 YECUS1A105KX Ceramic, 1µF 10WV
C307 YECUS1H561JM Ceramic, 560PF 50WV
C308 YECUS1A105KX Ceramic, 1µF 10WV
C311 YECUS1A105KX Ceramic, 1µF 10WV
C312 YECUS1A105KX Ceramic, 1µF 10WV
C321 YECUV1C224KX Ceramic, 0.22µF 16WV
C322 YECUV1C224KX Ceramic, 0.22µF 16WV
C331 YECUV1C124KX Ceramic, 0.12µF 16WV
C332 YECUV1C124KX Ceramic, 0.12µF 16WV
C333 YECUV1C124KX Ceramic, 0.12µF 16WV
C334 YECUV1C124KX Ceramic, 0.12µF 16WV
C378 YECUS1A105KX Ceramic, 1µF 10WV
C379 YECUS1A105KX Ceramic, 1µF 10WV
C451 YECUS1H150JC Ceramic, 15PF 50WV
C452 YECUS1H150JC Ceramic, 15PF 50WV
C453 YECUS1H101JM Ceramic, 100PF 50WV
C454 YECUS1H102KX Ceramic, 1000PF 50WV
C455 YECUS1C104KX Ceramic, 0.1µF 16WV
C457 YECUS1H103KX Ceramic, 0.01µF 50WV
C458 YECUS1H103KX Ceramic, 0.01µF 50WV
C459 F2A1H4R7A154 Electrolytic, 4.7µF 50WV
C601 YECUS1H270JC Ceramic, 27PF 50WV
C602 YECUS1H270JC Ceramic, 27PF 50WV
C605 YECUS1C104KX Ceramic, 0.1µF 16WV
C607 YECUS1H102KX Ceramic, 1000PF 50WV
C608 YECUS1H103KX Ceramic, 0.01µF 50WV
C619 YECUS1H101JM Ceramic, 100PF 50WV
C621 YECUS1H103KX Ceramic, 0.01µF 50WV
C624 F2A0J470A164 Electrolytic, 47µF 6.3WV
C627 YECUS1H103KX Ceramic, 0.01µF 50WV
10
CQ-LS7230K