Panasonic CQ-YH5070L, CQ-5071L, CQ-YH5072L, CQ-5074A Service Manual

ORDER No. 0149

AUTOMOTIVE ELECTRONICS

HONDA
CQ-YH5070L/5071L
CQ-YH5072L/5074A

LW/MW/UKW MPX ELECTRONIC
TUNING RADIO with Cassette Player

HONDA PART No. (CQ-YH5070L): 39100-S6A-G100
HONDA PART No. (CQ-YH5071L): 39100-S6A-G000
HONDA PART No. (CQ-YH5072L): 39100-S6A-E102
HONDA PART No. (CQ-YH5074A): 39100-S5A-G100

Specification*

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

Test Voltage 13.2V

Negative Ground
Current Consumption Less than 3.0A at 0.5W
Maximum Power Output
<CQ-YH5070L/5072L/5074A> 30W×4ch
<CQ-YH5071L> 20W×4ch
Output Impedance 4Ω

LW/MW Radio
Frequency Range :
<LW Band> 153 - 279kHz
<MW Band> 531 - 1,611kHz
Usable Sensitivity 28dB/µV (S/N 20dB)
Signal to Noise Ratio More than 42dB

VEHICLE : CIVIC
DESTINATION : EUROPE
PRODUCED AFTER (CQ-YH5070/5072L) : Nov., 2000
PRODUCED AFTER (CQ-YH5071L) : Feb., 2001
PRODUCED AFTER (CQ-YH5074A) : Dec., 2000
<NOTE>

For the unit ID CODE, please refer to next page.

UKW Stereo Radio
Frequency Range 87.5 - 108.0MHz
Usable Sensitivity 6dB/µV (S/N 30dB)
Seek Sensitivity 28dB/µV
Stereo Separation More than 20dB

Dimensions** (W×H×D) 180×52×160mm

Weight** 1.4kg

* 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

HONDA / CQ-YH5070L/5071L / CQ-YH5072L/5074A

CONTENTS

Page Page

1 ID CODE 2
2 FEATUERS
3 REAR VIEW
4 FRONT VIEW AND FUNCTIONS
5 WIRING CONNECTIONS
6 BLOCK DIAGRAM
7 TERMINALS DESCRIPTION
8 PACKAGE AND IC BLOCK DIAGRAM
9 ALIGNMENT INSTRUCTIONS

10 ALIGNMENT POINTS 10

2

11 REPLACEM ENT PARTS LIST

2

12 EXPLODED VIEW (Unit)
13 TAPE PLAYER PARTS

3
4

14 EXPLODED VIEW (Tape Deck)

5

15 WIRING DIAGRAM
16 SCHEMAT IC DIAGRAM (1)

6
7

17 SCHEMAT IC DIAGRAM (2)

10

11
17
18
20
21
27
29

1 ID CODE

∙

CQ-YH5070L : 1SC0

∙

CQ-YH5071L : 1CC0

∙

CQ-YH5072L : 1SC1

∙

CQ-YH5074A : 1SC3

2 FEATUERS

∙

PLL (Phase Locked Loop) synthesized tuning.

∙

24-station preset (6-LW, 6-MW, 12-UKW)

∙

Scan Tuning.

∙

Cassette Tape Player Control.

∙

CD/MD player Control.

∙

CD/MD changer control.

∙

Electronic sound control function.

∙

GA-NET control function.

3 REAR VIEW

2

4 FRONT VIEW AND FUNCTIONS

HONDA / CQ-YH5070L/5071L / CQ-YH5072L/5074A

3

HONDA / CQ-YH5070L/5071L / CQ-YH5072L/5074A

5 WIRING CONNECTIONS

4

6 BLOCK DIAGRAM

HONDA / CQ-YH5070L/5071L / CQ-YH5072L/5074A

5

HONDA / CQ-YH5070L/5071L / CQ-YH5072L/5074A

7 TERMINALS DESCRIPTION

7.1. Main Block

IC601 : C2CBJG000156

Pin No. Port Description I/O (V)

1 AMP-MUTE Power amp mute O 0
2 NAVI-L-MUTE Not used - ­3 MUTE Mute output O 0
4 AMP-ON Power Amp stand-by O 4.9
5 FL-MUTE Front speaker Lch mute O 4.9
6 FR-MUTE Front speaker Rch mute O 4.9
7 REAR-MUTE Rear speaker mute O 4.9
8 SYS-ACC System ACC on O 0

9 NAVI-R-MUTE Not used - ­10 ACC CNT ACC 5V power on/off O 0
11 RESET Reset input I 4.9
12 XT2 Crystal oscillator terminal - 2.5
13 XT1 Crystal oscillator terminal - 2.3
14 VSS Ground - 0
15 X2 Crystal oscillator terminal - 2.1
16 X1 Crystal oscillator terminal - 2.0
17 REGOFF (Connecting to ACC5V) - 4.9
18 REGC (Connecting to ACC5V) - 4.9
19 VDD +5V power supply - 4.9

20, 21 NC No connection - -

22 MS MS detection I 0
23 MS(PL/FF) MS mode selection O 0
24 T.LOAD Tape loading detection I 0
25 DOLBY Dolby NR on/off O 0
26 F/R Tape head change O 0
27 EQ(MTL) Metal tape mode selection O 4.9
28 A/B Tape side detection I 0
29 MSM MS gain contrl O 4.9
30 T.IN Tape-in detection I 0
31 LCD ON LCD illumi. on/off O 4.9
32 LCD-CE LCD driver enable O 0
33 LCD-CLK Shift clock for LCD data O 0
34 LCD-DI LCD data O 5.1
35 LCD-DO LCD data I 4.7
36 SD/VCONT (ground pull-down) - 0
37 M2F Main motor control O 0
38 CA.PON Tape power control O 4.7
39 CM.PON Tape power control O 4.6
40 VSS Ground - 0
41 VDD +5V power supply - 4.9
42 M2 Main motor control O 0
43 M1-2 Loading motor control O 0
44 M1-1 Loading motor control O 0
45 BIT1 Tape mode switch I 4.6
46 A.END Tape end signal I 1.5
47 B.END Tape end signal I 2.4
48 BIT2 Tape mode switch I 4.6
49 EQ Metal/Normal switchl I 0
50 BIT3 Tape mode switch I 0
51 CLOCK (+5V pull-up) - 4.9
52 POWER Power switch I 4.9
53 SEC-LED Security LED on/off O 4.9
54 TEL-MUTE Telephon mute I 0
55 AM/FM AM/FM selection O 4.9
56 R.ON Radio power on/off O 4.9
57 SEC2 (Ground pull-down) - 0
58 SEC-CS Security ROM chip select O 0
59 SEC-CLK Shift clock for security ROM O 0
60 SEC-DI Serial data I 1.0
61 SEC-DO Serial data O 0
62 NC(ASTB) (Ground pull-down) - -

63 REMO (Ground pull-down) - 0
64 3/4 (Ground pull-down) - 0
65 RDS-CLK Shift clock for RDS data I 2.5
66 RDS-DATA RDS data I 2.5
67 SEC-SEL (Ground pull-down) - 0
68 RMODE Radio mode O 4.9
69 SD.ST FM stereo detection I 4.9
70 AREA SEL Ground pull-down) - 0

71, 72 NC No connection - -

73 TESTMODE (Connecting to ground) - 0
74 VSM Phase diff. level detection I 0
75 MP FM tuner multipass I 0
76 NOISE Adjustment station detection I 0
77 REMOCON Not uesd - ­78 RDS-MUTE RDS mute O 4.9
79 TEST (+5V pull-up) - 5.0
80 VOL CLK Electronic volume clock O 0
81 VOL DATA Electronic volume data O 0
82 AVDD +5V power supply - 4.9
83 AVREF1 Analog reference voltage I 4.8
84 AVSS Ground - 0
85 LAN-IN LAN data input I 0
86 LAN-OUT LAN data output O 0
87 NC (Connecting to ground) - 0
88 VOL-A Rotary encoder data I 5.0
89 VOL-B Rotary encoder data I 5.0
90 BAT-DET Battery level detection I 4.9
91 VOL-C Rotary encoder data I 0.9
92 ACC-DET ACC level detection I 4.9
93 EJECT Tape eject SW I 4.6
94 VOL-D Rotary encoder data I 0.9
95 PLL-DO PLL data O 0
96 PLL-CLK Shift clock for PLL data O 0
97 PLL-DI PLL data I 5.1
98 PLL-CE PLL chip select O 0
99 BEEP Beep output O 0

100 P.CONT System power on/off O 4.9

Note :

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

7.2. Display Block

IC901 : YEAMLC75854

Pin No. Port Description I/O (V)

1-6 P1-6 Not used - -

7-39 S33-1 LCD segment data O 2.5
40-43 COM1-4 LCD common O 2.5
44-47 KS1-4 Key strobe O 0.9
48,49 KS5,6 Not used - ­50-53 KI1-4 Key data I 0

54 KI5 Not used - ­55 TEST (Connecting to ground) - 0
56 VDD +5V power supply - 5.1
57 VDD1 LCD angle - 3.3
58 VDD2 LCD angle - 1.7
59 VSS Ground - 0
60 OSC Oscillator terminal - 3.9
61 DO Key data output O 4.4
62 CE LCD driver chip enable I 0
63 CL Shift clock for LCD data I 0
64 DI LCD data input I 0

6

8 PACKAGE AND IC BLOCK DIAGRAM

HONDA / CQ-YH5070L/5071L / CQ-YH5072L/5074A

PK50 : YEAU03340E02

IC204 : C1BB00000284

IC250 : C1BA00000332

7

HONDA / CQ-YH5070L/5071L / CQ-YH5072L/5074A

IC461 : YEAMAA6759TT

IC604 : MN1382KTX

IC471 : YEAMLC72146T

IC605 : YEAMH12187ER

8

IC602 : AN8065SE1

HONDA / CQ-YH5070L/5071L / CQ-YH5072L/5074A

IC603 : C3EBCG000037

IC620 : AN6277NK

9