Panasonic CQ-4400U User manual

ORDERNO.ACED000901C1

AUTOMOTIVE CONSUMERELECTRONICS

CQ-4400U

HeavyDutyCassette Player /Weather Band Receiver with Changer

Control

SPECIFICATIONS

2000 Matsushita Communication Industrial Co., Ltd. All rights

reserved. Unauthorized copying and distribution isaviolation of

law.

1. FEATURES

-24-Stations Preset (6-FM1, 6-FM2, 6-W/B, 6-AM)

-Metal (CrO2)/Normal Tape Selector.

-ElectronicControl of Volume, Bass, Treble, Balance and Fader

-DolbyNR function.

-CD Changer Control function

-TPS (Tape Program Search )function.

-Clock function.

-Head Clean Alarm

-Reset Switch

2. REPLACING THE FUSE

Be sure touse a fuse of the specifiedrating (10A) whenreplacing a blownfuse. Fuses with

highercapacityratings, use of anysubstitute, connection without a fuse mayresult ina fire

hazardordamage tothe unit.

3. MAINTENANCE

Yourproduct is designedand manufacturedtoensure a minimumof maintenance. Use a soft

clothforroutine exteriorcleaning. Neveruse benzine, thinnerorothersolvent.

4. RADIO ALIGNMENT

Donot align the AM/FM package blocks. Whenthe package block is necessary, it will be

suppliedalreadyalignedat the factory.

5. DIMENSIONS

6. WIRING CONNECTION

7. BLOCK DIAGRAM

8. ALIGNMENT INSTRUCTIONS

8.1. Alignment Conditions

-Power SupplyVoltage :DC14.4V

-Output Impedance :4W

-Balance, Fader Control :Center

-Bass, TrebleControl :Center

Note:

Donot align the FM/AMpackage blocks. When the package block is

necessary, itwill be supplied alreadyaligned at the factory.

8.2. DolbyNR Alignment

Step Alignment Item Test Tape VTVM Connection Adjust Remarks

1DOLBY NR Rch RFKZ0038 TP201 VR201 Adjust for388mV

2DOLBY NR Lch RFKZ0038 TP301 VR301 Adjust for388mV

8.3. Alignment Points

9. WIRING DIAGRAM (Tape Block)

10. WIRING DIAGRAM (Display Block)

11. WIRING DIAGRAM (Main Block)

12. SCHEMATIC DIAGRAM (Tape Block)

13. SCHEMATIC DIAGRAM (Display Block)

14. SCHEMATIC DIAGRAM (Main Block)

15. TERMINALS DESCRIPTION

15.1. MainBlock

IC601 YEAM17708621

No. Name Description I/O Vol. (V)

AM FM TAPE

1 BATT BatteryDetection I 5.3 2.5 5.3

2 (NC) (Connect to

Ground) | - - -

3MODE2 Tape Detection

input I4.7 4.7 4.7

4 (NC) (Connect to

Ground) - - - -

5MS Nosound

Detection (TPS) I O O O

6 R-REEL Reel Pulse

Detection(R) I 1.5 2.3 3

7F-REEL Reel Pulse

Detection(F) I1.4 2 3.1

8 (NC) - - - - -

9 ST StereoSignal

Input I4.6 4.6 4.6

10 MTL Deck Metal

Output H:ON L:

OFF

O 0 0 0

11 DOLBY

ON/OFF DolbyNR ON/

OFF H:OFF L:ON O 0 0 0

12 (NC) - - - - -

13 MS GAIN Music Search

GainControl O 0 0 0

14 ACC ACC Detection I 5.2 5.2 5.2

15 MMT-F MainMotor

Control I/O 4.8 4.8 4.8

16 CD

MUTE MainMotor

Control I/O 0 0 0

17 FM/AM

BW FM/AM Select

Switch O 8.1 0 0.1

18 RADIO

ON AM/FM TunerON O 0 0 0.1

19 WB W/B TunerON O 7.1 7.1 7.1

20 SSC FM/AM SSC

Control O 0 0 0

21 GND Ground - 0 0 0

22 (NC) - - - - -

23 (NC) - - - - -

24 INITB (Pull-down) - 0 0 0

25 INITA (Connect to

Ground) - 0 0 0

No. Name Description I/O Vol. (V)

AM FM TAPE

26 SD FM FM SD Input I 0.2 0.7 0.7

27 SD AM AM SD Input I 2.4 2.4 2.7

28 AMIFC AM IFInput I 0 0 0

29 FMIFC FM IFInput I 1.2 1.6 2.5

30 VDD Powersupply+5V - 4.8 4.8 4.8

31 FM/AM

OSC FM OSC Input I 2.6 2.6 2.6

32 WB OSC WB OSC Input I 0 0 0

33 GND Ground - 0 0 0

34 E01 FM / AM VT

Output O1.5 1.5 1.5

35 E02 (NC) - - - - -

36 (NC) (Connect to

Ground) - - - -

37 MONO

(NC) - - - - -

38 LOC

(NC) - - - - -

39 BEEP1 BeepSound

Output 1 O 0 0 0

40 BEEP2 BeepSound

Output 2 O 0 0 0

41 CD

CLK2 CD Clock 2 I 4.7 4.7 4.7

42 CDC

STB CD Changer

Strobe I2.3 2.3 2.3

43 TIN/T

EXIST Tape-inSwitch

Signal input I 0 0 0

44 (NC) - - - - -

45 (NC) - - - - -

46 F/R Forward/Reverse

Select Signal O 0 4.7 0

47 PW CNT SystemPower

Control O4.7 4.7 4.7

48 SYS

CNT AMP ST-BY

Control O4.8 4.8 4.8

49 MUTE Mute Control L:

mute ON O 4.8 4.8 4.8

50 PLON

(NC) - - - - -

51 HDB ON S HDB ON Signal

Output O4.8 4.8 4.8

52 (NC) - - - - -

53 CDC

SELECT(NC)

- - - - -

No. Name Description I/O Vol. (V)

AM FM TAPE

54 (NC) - - - - -

55 LCD

D01 (NC) - - - - -

56 LCD

CLK LCD Clock O 0 0 0

57 LCD DI

(MO) LCD Data input O 0 0 0

58 LCD CE LCD ChipEnble O 0.3 0.3 0

59 LCD

DO(MI) LCD Data Output I 5.3 5.3 5.3

60 (NC) - - - - -

61 (NC) - - - - -

62 REMOUT RemotoData

Output O4.8 4.8 4.8

63 12C

DATA 12C Data I 0 5 4.9

64 12C CLK 12C Clock O 5 5 5

65 CDC

CLK CD Changer

Clock I 2 2.3 2.3

66 MOTOR

ANT

(NC)

- - - - -

67 CDC

DATA CD ChangerData I 2 2.3 2.3

68 MOD3 Tape Deck Mode3 O 4.8 4.8 4.8

69 MODE2

(NC) - - - - -

70 MODE1 Tape Deck Mode1 I 4.8 4.8 4.8

71 SMT-R Sub Motor

Control (R) I 4.8 4.8 4.8

72 SMT-F Sub Motor

Control (F) O 0 4.8 0

73 TELMUTETelephone Mute

Control I4.7 4.7 4.7

74 VTER

(NC) - - - - -

75 GND Ground - 0 0 0

76 X OUT Crystal Oscilator O 2.3 2.3 2.3

77 X IN Crystal Oscilator I 1.8 1.8 2

78 CE ChipEnable I 4.8 4.8 4.8

79 VDD Powersupply+5V - 4.8 4.8 4.8

80 RESET Reset input I 4.8 4.8 4.8

15.2. DisplayBlock

IC901 YEAMLC75853E

No. Name Description I/O Volt(V)

1 (NC) - - -

2 P.LED LED IndicatorSignal

Output O 0

3~|40 S3~S40 LCD Segment O 2.7

41 COM1 LCD Common O 2.7

42 COM2 LCD Common O 2.7

43 COM3 LCD Common O 2.7

44~49 KS1~KS6KeyData Output O 5.3

50~54 K11~K15 KeyData Input I 0

55 TEST (Connect toGround) - 0

56 VDD +5V PowerSupply - 5.3

57 VDD1 +5V PowerSupply - 3.5

58 VDD2 +5V PowerSupply - 1.8

59 VSS (Connect toGround) - 0

60 OSC CR Oscillator - 3.9

61 DO LCD Data Output O 5.2

62 CE ChipEnable I 0.3

63 CLK LCD Clock Input I 0

64 DI LCD Data Input I 0

16. PACKAGE AND IC BLOCK DIAGRAM

16.1. MainBlock

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