Panasonic CQ-5100-U Service manual

ORDER NO. ACED071001C1

C4

AUTOMOTIVE AFTERMARKET

Model No. CQ-5100U

Heavy Duty CD Player/Weather Band
Receiver

TABLE OF CONTENTS

PAGE P AGE

1 Service Navigation ----------------------------------------------- 2
2 Specifications ----------------------------------------------------- 3
3 Features ------------------------------------------------------------- 4
4 T ec hnic al Desc ri ptions----------------------------------------- 5
5 Block Diagram----------------------------------------------------- 8
6 Wiring Connection Diagram---------------------------------- 9
7 Schematic Diagram---------------------------------------------10
8 Printed Circuit Board-------------------------------------------13
9 Exploded View and Replacement Parts List -----------17

10 Schematic Diagram for Printing with Letter Size -----25

© 2008 Matsushita Electric Industrial Co., Ltd. All
rights reserved. Unauthorized copying and distribu­tion is a violation of law.

1 Service Navigation

1.1. About Lead Free Solder(PbF)

Distinction of PbF PCB

• PCBs(manufacture)using lead free solder will have a PbF
stamp on the PCB.

Caution

• Pb free solder has a higher melting point than standard sol­der; Typically the melting point is 50 - 70°F (30 - 40°C)
higher. Please use a soldering iron with temperature control
and adjust it to 700 ± 20°F (370 ± 10°C). In case of using
high temperature soldering iron, please be careful not to
heat too long.

• Pb free solder will tend to splash when heated too high
(about 1100°F/600°C)

1.2. Laser Products

1.4. Maintenance

Your products is designed and manufactured to ensure a mini­mum of maintenance. Use a dry, a soft cloth for routine exterior
cleaning. Never use benzine, thinner or other solvents.

1.5. Notes

[RADIO BLOCK]

Do not align the AM/FM package block. When the package
block is necessary, it will be supplied alrea dy alig ned at the fac­tory.

[CD DECK BLOCK]

This model has no servo alignment points because microcom­puter controls the servo circuit.

1.3. Replacing the Fuse

Use fuses of the same specified rating (15A). Using different
substitutes or fuses with higher ratings, or connecting the prod­uct directly without a fuse, could cause fire or damage to the
stereo unit.

2

2 Specifications

2.1. Specfications

General

Power Supply DC 12V (11V - 16V),

Test Voltage 14.4V
Negative Ground

Current Consumption Less than 2.5A (CD play mode,

0.5W×4ch)
Maximum Power Output 37W×4ch (at 400Hz, Vol. Max.)
Tone Adjustment Range Bass ; ±12dB at 100Hz

Treble ; ±12dB at 10kHz

Power Output 18W per channel

(at 4Ω, 40 to 30000 Hz, 3% THD)

Suitable Speaker Impedance 4-8Ω

Front AUX Input

Input Impedance 10 kΩ
Allowable External Input 2.0 V
Connector 3.5mm stereo mini pin

FM Stereo Radio

Frequency Range 87.9 - 107.9MHz
Usable Sensitivity 12dBf (1.1µV/ 75Ω, S/N 30dB)
50 dB Quieting Sensitivity 17dBf (1.8µV/ 75Ω)
Frequency Response 30 - 15 000 Hz ±3dB
Alternate Channel Selectivity 75dB
Stereo Separation 35dB at 1 kHz
Signal/ Noise Ratio 70dB (Mono)

2.2. Dimensions

AM Radio

Frequency Range 530 - 1,710kHz
Usable Sensitivity 28dB/µV (25µV, S/N 20dB)

Weather Band Radio

Frequency Range 162.40 - 162.55MHz
Usable Sensitivity 3dB (S/N 20dB)
Signal/ Noise Ratio 50dB (40dB/µV)

CD Player

Sampling Frequency 32 times oversampling
DA Converter 1 bit/4 DAC System
Error Correction System Panasonic Super Decording Algorithm
Pick-Up Type 1-beam
Light Source Semiconductor Laser
Wavelength 790nm
Frequency Response 20Hz to 20,000Hz (±1dB)
Signal/ Noise Ratio 85dB
Total Harmonic Distortion 0.01% (1kHz)
Wow and Flutter Below measurable limits
Channel Separation 75dB

Dimensions** 178×50×150mm
Weight** 1.4kg

* Specifications and the design are subject to possible modification
without notice due to improvements.
** Dimensions and Weight shown are approximate.

3

3 Features

• 18-FM, 6-AM presets with preset scan

• Digital servo for reliable CD playback.

• AUX function.

4

4 Technical Descriptions

4.1. Terminals Description

4.1.1. Main Block

IC601:C2ABYY000276

PinNoPort Description I/O FM(V) AM(V) CD(V) WB(V)

1 XIN 4. 5 MHz X’tal

2 TEST2 GND connection I 0 0 0 0
3 VREG Bypass con-

4 VSSCPU GND connection - 0 0 0 0
5 N.C. None O 0 0 0 0
6 N.C. None O 0.01 0.01 0 0
7 N.C. None O 0 0.01 0.01 0
8 N.C. None O 0.01 0.01 0.01 0

9 LCD_DO LCD data output I 5.1 5.17 5.17 5.13
10 LCD_DI LCD data input O 0 0 0 0
11 LCD_CLK LCD clock O 5 5.14 5.12 5.13
12 LCD_CE LCD chip enable

13 CD_DO CD data output I 5.3 5.27 4.92 5.24
14 CD_DI CD data input O 0.01 0.01 5.12 0
15 CD_CLK CD clock O 5 5.17 5.1 5.16
16 CD_CE CD chip enable O 0.01 0.01 0.4 0
17 CD_EM CD eject O 0.02 0.02 0.02 0
18 CD_LM CD loading O 0.01 0.01 5.15 0
19 CD_S/L CD 24PIN connec-

20 CD_WRQ CD WRQ connec-

21 CD_INSW1CD insert SW

22 CD_SW2 CD MECHA SW2 I 5 5.14 5.13 5.14
23 CD_LIMI

T_SW
24 CD_DRF CD DRF I 0 0 5.15 0
25 CD_RST CD reset O 5 5.17 5.14 5.16
26 CD_DMUTECD mute O 0 0 0 0

27 N.C. None O 0 0 0 0
28 N.C. None O 0 0 5.18 0
29 PANEL Panel detect I 5.18 5.18 0 5.14
30 N.C. GND connection I 0 0 0 0
31 N.C. GND connection I 0 0 0 0
32 N.C. GND connection I 0 0 0 0
33 N.C. None O 0 0 0 0
34 N.C. None O 0 0 0 0
35 N.C. None O 0 0 0 0
36 N.C. None O 0 0 0 0
37 N.C. None O 0 0 0 0
38 N.C. None O 0 0 5.14 0
39 VDDPORT Power supply of

40 VSSPORT GND of PORT - 0 0 0 0
41 N.C. None O 0 0 0 0
42 N.C. None O 0 0 0 0
43 N.C. None O 0 0 0 0
44 N.C. None O 0 0 0 0
45 N.C. None O 0 0 0 0
46 N.C. None O 0 0 0 0
47 N.C. None O 0 0.02 0.02 0
48 N.C. None O 0 0 0 0
49 PWR_CNT Power control O 5 5.15 5.14 5.15
50 AMP_CNT Amp stand-by O 5 5.15 5.13 5.15
51 AMP_MUTEAmp mute O 5 5.15 5.15 5.17

and Connection

denser connected.

output

tion

tion

input

CD limit SW I 0 0 5.26 0

PORT

I 2.4 2.49 2.48 2.49

O 2.9 2.99 2.99 2.9

O 0.1 0.18 0.23 0.13

O 5.17 5.18 5.17 5.17

I 5.3 5.29 0.1 5.28

I 0.1 0.1 0.1 0.1

- 5.14 5.17 5.17 5.17

PinNoPort Description I/O FM(V) AM(V) CD(V) WB(V)

55 I2C_DATAElectronic VOL

56 I2C_CLK Electronic VOL

57 N.C. None O 5.16 5.17 0 5.17
58 POWER_LEDPower LED O 0.1 0.17 0.17 0.15

59 N.C. None O 0.03 0.02 0 0.02
60 N.C.

(BZ_OUT

)
61 N.C. None O 0.03 0.02 0 0.02
62 N.C. None O 0.03 0.02 0 0.02
63 N.C. None O 0.03 0.02 0 0.02
64 N.C. None O 0.03 0.02 0 0.02
65 N.C. None O 0.03 0.02 0 0.02
66 N.C. None 0 0.02 0.02 0 0.02
67 BATT Battery detec-

68 MODE_B ROTARY B input I 5.1 5.1 5.1 5.1
69 N.C. None 0 0.04 0.02 0 0.02
70 N.C. None O 0.9 0.9 0.9 0.9
71 MODE_A ROTARY A input I 5.1 5.1 5.1 5.1
72 N.C. None I 0 0 0 0
73 NC None O 0.03 0.03 0 0
74 MONO Compulsion MONOONO 0.03 0.03 0.03 0

75 RadioonRadio/CD change O 0.06 0.06 8.7 8.3

76 FM/AMSWAM/FM change O 0.08 8.06 0.08 0.5

77 INIT_D GND connection I 0.1 0 0 0
78 INIT_C GND connection I 0 0 0 0
79 INIT_B GND connection I 0 0 0 0
80 INIT_A GND connection I 0 0 0 0
81 VSSADC GND connection - 0 0 0 0
82 N.C. GND connection I 0 0 0 0
83 ST FM stereo input I 5.3 5.25 1.5 1.5
84 SD_FM/AMSignal detection I 3.1 3.25 0.32 2.55

85 N.C. GND connection I 0 0 0 0
86 RESET Reset Input I OFF OFF OFF OFF
87 ACC Power supply I 5.3 5.37 5.42 5.3
88 N.C. GND connection I 0 0 0 0
89 N.C. GND connection I 0 0 0 0
90 FM/

AM_IFC
91 N.C. GND connection I 0.1 0 0 0
92 SUBPD None O 1.4 1.4 1.39 1.32
93 VDDPLL Power supply of

94 OSC_WB None I 0 0 0 1.39
95 OSC_FM/AMFM/AM osc input I 1.4 1.36 0 0

96 VSSPLL None - 0 0 0 0
97 N.C. None O 0.3 0.17 0.21 0
98 EO1 PLL phase com-

99 TEST1 GND connection I 0 0 0 0

100 XOUT 4. 5 MHz X’tal

data

clock

None O 0.03 0.02 0 0.02

tion

FM/AM IF input I 1.07 1.08 0 1.08

PLL

parison error
output

and Connection

O 5 5.17 5.16 5.17

O 5 5.17 5.16 5.17

I 5.2 5.33 5.33 5.29

- 5 5.16 5.8 5.7

O 1.4 1.4 1.38 1.33

O 2.5 2.56 2.56 2.62

Note 1 :

Voltage measuerments are with respect to ground, with a
voltmeter (internal resistance : 10M ohms).

52 N.C. None O 0.03 0.02 0.02 0.02
53 SSC Tuner search

54 AF_MUTE AF mute O 5 5.17 5.15 5.17

sensitivity
change

O 0.06 0.06 0.06 0.06

5

4.1.2. Display Block

IC901:C0HBA0000225

Pin No Port Descriptions I/O (V)
1-35 SEG1-35 LCD segment O 2.5
36-39 NC No connection - ­40-43 COM1-4 LCD common O 2.5
44-49 KS1-6 Key data output O 0.9
50-54 KI1-5 Key data input I 0
55 TEST (Connecting to ground) - 0
56 VDD +5V power supply - 5.1
57 VDD1 Ground through capacitor - 3.3
58 VDD2 Ground through capacitor - 1.7
59 Vss Ground - 0
60 OSC CR oscillator - 3.9
61 DO Key data output O 4.4
62 CE Chip enable I 0
63 CLK LCD clock I 0
64 DI LCD data input I 0

4.2. IC Block Diagram

4.2.1. Main Block

P40:J3CZAB000001

P50:C5BA00000122

IC270:C1EA00000042

IC300:C1BB00000543

6

IC1:YEAMLC78646A

IC701:C0DAZHF00004

IC2:C1BB00001088

7

5 Block Diagram

8

6 Wiring Connection Diagram

9