Panasonic CQ-DT6930ZE Service Manual

ORDER NO. 3001

AUTOMOTIVE ELECTRONICS

HINO CQ-DT6930ZE

AM/FM MPX Electronic Tuning Radio with Cassette Player

HINO PART No. : 86120-37160 VEHICLE : DUTRO

ID CODE : 57270 DESTINATION : ----PRODUCED AFTER : Oct., 2000

Specification

General Power Supply DC 24V (21.6V - 32V),

Test Voltage 26.4V

Negative Ground Current Consumption Less than 3.0A Power Output 15W×4ch

AM Radio Frequency Range 530 - 1,602kHz Usable Sensitivity 25dB(µV) (S/N 20dB)

FM Stereo Radio Frequency Range 88.0 - 108.0MHz Usable Sensitivity 6dB/µV (S/N 30dB)

Cassette Player Reproduction System 4-Track, 2-Program Stereo Tape Speed 4.76cm/sec. Wow and Flutter Less than 0.1% (WRMS) Signal to Noise Ratio 53dB (IHF-A)

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.

Doldy noise reduction manufactured under license from Dolby Laboratories Licensing Corporation.

“Dolby” and the double-D symbol Laboratories Licensing Corporation.

are trade marks of Dolby

CQ-DT6930ZE

CONTENTS

Page Page

1 FEATUERS 2 2 REAR VIEW AND CONNECTORS 3 FRONT VIEW AND FUNCTIONS 4 WIRING CONNECTION 5 BLOCK DIAGRAM 6 TERMINALS DESCRIPTION 7 PACKAGE AND IC BLOCK DIAGRAM 8 ALIGNMENT INSTRUCTIONS

9 ALIGNMENT POINTS 9

10 REPLACEM ENT PARTS LIST 11 EXPLODED VIEW (Unit)

3 3

12 TAPE PLAYER PARTS

13 EXPLODED VIEW (Tape Deck) 14 WIRING DIAGRAM

5 6

15 SCHEMAT IC DIAGRAM (1)

16 SCHEMAT IC DIAGRAM (2)

1 FEATUERS

10 14 15 17 18 22 23

∙

PLL (Phase Locked Loop) synthesized tuning.

∙

18-station preset (6-AM, 12-FM).

∙

Electronic volume control.

∙

Full logic control tape deck.

∙

Dolby B NR function.

2 REAR VIEW AND CONNECTORS

3 FRONT VIEW AND FUNCTIONS

CQ-DT6930ZE

4 WIRING CONNECTION

CQ-DT6930ZE

5 BLOCK DIAGRAM

6 TERMINALS DESCRIPTION

CQ-DT6930ZE

6.1. Main Block

IC601 : C2BBGE000295

Pin No.

1 LCD-CL Clock for LCD data O 0 2 LCD-DI LCD data O 0 3 NC No connection - 4 GND Ground - 0 5 NC No connection - 6 NC No connection - 7 VDD +5V power supply - 5.0 8 NC No connection - -

9 AUX IN CD disc detection I 0 10 CD STOP CD stop O 0 11 CD ON CD power on O 0 12 NC No connection - 13 M1-B Tape main motor control O 0 14 M1-A Tape main motor control O 0

15,16- (Connecting tp ground) - 0

17 SEEK UP Not used - 18 SEEK DWN not used - 19 NC No connection - 20 AMP ON Ext. amp control O 3.8 21 LATH Data latch O 5.0 22 A/B Tape FF/REW switch I 0 23 /MTL Metal tape mode O 5.0 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 5.0 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 5.0 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

36,37DIV1,2 Not used - -

38 /M2F Tape solenoid control O 0.5 39 NC No connection - 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 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 DIV SW 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

56,57NC No connection - -

Port Description I/O (V)

62 +B-DET Battery level detection I 4.5 63 ACC-DET ACC level detection I 4.5 64 /T.EJECT Tape eject I 3.4 65 AN NK AM noise cancellation O 3.4 66 MODE B Encoder data input I 0 67 MODE A Encoder data input I 0 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 Crystal oscillatorv terminal - 2.6 73 XT1+ Crystal oscillatorv terminal - 2.3 74 AVDD +5V power supply - 5.0 75 ACC 5V +5V power supply - 5.0 76 VSM Radio signal level detection I 0 77 MAIN-VOL Main volume level I 0 78 AMSMTA AM radio signal level detection I 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.

1-20 SEG1-20 LCD segment data O 2.6 21-33 - Not used - 34-40 SEG34-40 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

Port Description I/O (V)

58 ST FM stereo detection I 0 59 SD B/S detection I 0 60 /RESET System reset I 4.5 61 /ILL-DET illumi. on detection I 3.5

CQ-DT6930ZE

7 PACKAGE AND IC BLOCK DIAGRAM

7.1. Main Block

PA101 : YEP0PTA512B0

IC101 : YEAMHA12181F

IC631 : YEAMLB1930MT IC751 : AN8065SE1

IC231 : YEAMLA4450

CQ-DT6930ZE

IC201 : YEAMM62435FA

IC701 : C0DBZHZ00005

IC451 : YEAMLC72135C

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