Clarion JC-215H-51 Service Manual

- 1 -

JC-215H-51

Published by Service Dept.

Printed in Japan

Clarion Co., Ltd.

Export Division - 22-3, Shibuya 2-chome, Shibuyaku, Tokyo, 150-8335 Japan Tel: [phone]

Service Dept.- 50 kamitoda,Toda-shi,Saitama,335-8511 Japan Tel: [phone] FAX:[phone]

298-5712-00

Jan.1999 P

Service Manual

Model

HONDA Motorcycle Genuine
CB Radio

JC-215H-51

SPECIFICATIONS

General

Power supply voltage:13.8V DC
Ground: Negative
Consumption current: 2.0A or below

(at transmission)

Back-up consumption current:

1.0mA or below

Frequency range: 26.965MHz to 27.405MHz(40ch)

Frequency tolerance: 0.005

? or less

Radio wave type: A3E
Antenna impedace: 50

?

Dimensions(mm): 105(W)? 35(H)? 150(D)
Weight: 620g

Transmitter section

Power output: 4.0W
Transmission S/N: 40dB or higher
Modulation sensitivity:

? 40dBV? 3dB

Receiver section

Practical sensitivity: 6dB? V or below(S/N 10dB)
S/N: 35dB or higher
Distortion factor: 8

? or below

Squelch sensitivity: Thershold;8dB

? V or below

Tight;25dB

? V or higher

Audio output level: 0.5V or higher

NOTE

We cannot supply PWB with component parts in prin­ciple. When a circuit on PWB has failure, please re­pair it by component parts base. Parts which are not
mentioned in service manual are not supplied.
Specification and design are subject to change with­out notice for further improvement.

COMPONENT

JC-215H-51

Main unit

1

(Genuine No. 08E95-MBY-10001)

ch
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20

MHz

26.965

26.975

26.985

27.005

27.015

27.025

27.035

27.055

27.065

27.075

27.085

27.105

27.115

27.125

27.135

27.155

27.165

27.175

27.185

27.205

ch
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40

MHz

27.215

27.225

27.255

27.235

27.245

27.265

27.275

27.285

27.295

27.305

27.315

27.325

27.335

27.345

27.355

27.365

27.375

27.385

27.395

27.405

www.electronicsrepair.net

- 2 -

JC-215H-51

■WIRE CONNECTIONS

■

To engineers in charge of repair
or inspection of our products.

Before repair or inspection, make sure to fol­low the instructions so that customers and En­gineers in charge of repair or inspection can
avoid suffering any risk or injury.

1. Use specified parts.
The system uses parts with special safety features
against fire and voltage. Use only parts with equiva­lent characteristics when replacing them.
The use of unspecified parts shall be regarded as re­modeling for which we shall not be liable. The onus of
product liability (PL) shall not be our responsibility in
cases where an accident or failure is as a result of
unspecified parts being used.

2. Place the parts and wiring back in their original posi­tions after replacement or re-wiring.
For proper circuit construction, use of insulation tubes,
bonding,gaps to PWB, etc, is involved. The wiring con­nection and routing to the PWB are specially planned
using clamps to keep away from heated and high volt­age parts. Ensure that they are placed back in their
original positions after repair or inspection.
If extended damage is caused due to negligence dur­ing repair, the legal responsibility shall be with the re­pairing company.

3. Check for safety after repair.
Check that the screws, parts and wires are put back
securely in their original position after repair. Ensure

for safety reasons there is no possibility of secondary
ploblems around the repaired spots.
If extended damage is caused due to negligence of
repair, the legal responsibility shall be with the repair­ing company.

4. Caution in removal and making wiring connection to
the parts for the automobile.
Disconnect the battery terminal after turning the igni­tion key off. If wrong wiring connections are made with
the battery connected, a short circuit and/or fire may
occur. If extensive damage is caused due to negli­gence of repair, the legal responsibility shall be with
the repairing company.

5. Cautions regarding chips.
Do not reuse removed chips even when no abnormal­ity is observed in their appearance. Always replace
them with new ones. (The chip parts include resis­tors, capacitors, diodes, transistors, etc). The nega­tive pole of tantalum capacitors is highly susceptible
to heat, so use special care when replacing them and
check the operation afterwards.

6. Cautions in handling flexible PWB
Before working with a soldering iron, make sure that
the iron tip temperature is around 270

℃. Take care

not to apply the iron tip repeatedly(more than three
times)to the same patterns. Also take care not to ap­ply the tip with force.

7. Turn the unit OFF during disassembly and parts re­placement. Recheck all work before you apply power
to the unit.

M.C.U

EH -1128V -A

CB

JC -215H -51

PORTABLE

PLAYER

CD AUTO CHANGER

RADIO
ANTENNA REC EPTACLE
(JASO)

STEREO M INI
JA C K (

)

13P DIN CONNECTOR
(FEMALE)

13P DIN CONNECTOR
(M ALE)

18P
OUTLET SOCKET

20P
OUTLET SOCKET

CB ANTENNA
RECEPTACLE
(JASO)

3P
OUTLET SOCKET

13P DIN CONNECTOR
(FEMALE)

BODY HARNESS

CB
ANTENNA

AM/FM RADIO
ANTENNA

- 3 -

JC-215H-51

■EXPLANATION OF IC

■ MB89133APFM-G449 052-9203-01 CB Transceiver Control

1. Outward Form : 48 pins QFP

2. Terminal Description
pin 1 : AVCC : − : Positive supply voltage for A/D converter.

pin 2 : RST : IN : Reset signal input.
pin 3 : MOD0 : − : Not in use.
pin 4 : MOD1 : − : Not in use.
pin 5 : X0 : − : Clock
pin 6 : X1 : − : 4.194MHz
pin 7 : V C C : − : Positive supply voltage.
pin 8 : X0A : − :Not in use.
pin 9 : X1A : − :Not in use.
pin 10: N.C. : − : Not in use.
pin 11: N.C. : − : Not in use.
pin 12: N.C. : − : Not in use.
pin 13: N.C. : − : Not in use.
pin 14: N.C. : − : Not in use.
pin 15 : POP SW : O : Pop noise killer control signal output.
pin 16 : RX SW : O : RX audio switch control signal output.
pin 17 : POWER 8V : O : 8V power supply control signal output.
pin 18 : TEST OUT : O : Not in use.
pin 19 : GND : − : Ground.
pin 20 : TEST IN : IN : Not in use.
pin 21 : VCO SHIFT : O : VCO sift signal output. "H"= TX , "L"= RX
pin 22 : TX ON : O : TX ON signal output.
pin 23 : RX ON : O : RX ON signal output.
pin 24 : PLL LE : O : PLL load enable signal output.
pin 25 : PLL DATA : O : PLL data output.

■ADJUSTMENTS

Adjusting VCO

1. Set CB channel to CH20(27.205MHz).

2. Connect a DC voltmeter to TP101(V.CONT).

3. Adjust L113 so that the voltmeter reading becomes

2.0

±0.05V while trasmitting(TX), and adjust L114 so

that the volmeter reading becomes 2.0

±0.05V while

receiving a signal(RX).

Adjusting TX power

1. Set CB channel to CH20(27.205MHz), and connect
a power meter to ANT.

2. Turn the core of L106 so that it moves top.

3. Adjust VR101 so that the power becomes maximun.

4. Adjust IFT105,L111 and L109 in this order so that
the power becomes maximun.

5. Adjust L104 so that the power becomes maximum.

6. Adjust VR101 so that the powermeter reading be­comes 3.7

±0.05W.

7. Make sure that the power is 3.2 to 4.0W when CB
channel is set CH1 and CH40.

Adjusting modulation

1. Set CB channel to CH20(27.205MHz).

2. Connect low frequency oscillator to the MIC-IN ter­minal of the DIN connector, and set the oscillator's
output to 1kHz,100mV.

3. Adjust VR102 so that the depth of modulation at this
time becomes 70

％.

4. Set the cscillator's output to 1kHz,10mV.

5. Adjust VR103 so that the depth of modulation at this
time becomes 50

％.

Adjusting receive sensitivity

1. Set CB channel to 20CH(27.205MH), set SQ level to
1, and set VOL level to 10.

2. Connect SSG to ANT(set SSG output to 70dB

μ), and

connect an AC voltmeter(synchroscope) to the audio
output. Adjust IFT4,IFT103,IFT106,IFT101 and L102
in this order so that the audio output becomes maxi­mum.

3. Make sure that S/N is more than 10dB when CB chan­nel is set CH20 and SSG output is set 5dB

μ.

Adjusting squelch

1. Set CB channel to CH20(27.205MHz), and set SSG
output to 10dB

μ.

2. Connect a DC voltmeter to TP102(SQ).

3. Adjust VR104 so that the voltmeter reading becomes

1.6

±0.05V.

4. Threshold sensitivity
Set CB channel to CH20(27.205MHz), set VOL level
to 10, and set SSG output to 4dB

μ

Make sure that the waveform disappeares when SQ
level is set 1 to 2.

5. Tight sensitivity
Set CB channel to CH20(27.205MHz), set SQ level
to 20, set VOL level to 10, and set SSG output to 0dB

μ. Increase SSG output, and make sure that the

waveform appeares when SSG output is et 25dB

μ.

pin 26 : PLL CLK : O : PLL clock output.
pin 27 : PLL LOCK : IN : PLL lock signal input.
pin 28 : PTT : IN : PTT signal input.
pin 29 : N.C. : − : Not in use.
pin 30 : N.C. : − : Not in use.
pin 31 : N.C. : − : Not in use.
pin 32 : N.C. : − : Not in use.
pin 33 : CB KEY_ : IN : CB Key request signal input. Negative logic.
pin 34 : AUDIO MUTE : O : Audio mute signal output.
pin 35 : BEEP : O : Beep sound output.
pin 36 : START KEY_ : IN : Start key signal input. Negative logic.
pin 37 : CB RESET : IN :CB reset signal input.
pin 38 : IGNIT SW_ : IN : Ignition switch signal input. Negative logic.
pin 39 : C2B CE : O : Chip enable signal output of Serial data

communication line.
pin 40 : C2B SI : IN : Serial data input.
pin 41 : C2B SO : O : Serial data output.
pin 42 : C2B CLK : O : Clock out of Serial data communication line.
pin 43 : AVSS : − : Ground for A/D converter.
pin 44 : AVREF : − :Reference voltage for A/D converter.
pin 45 : POWER 5V : O : 5V power supply control signal output.
pin 46 : N.C. : − : Not in use.
pin 47 : N.C. : − : Not in use.
pin 48 : SQ LEVEL : IN : Input terminal of SQ level detector.

- 4 -

JC-215H-51

■BLOCK DIAGRAM

RF CIRCUIT

CB ANT

RF POW ER

AM P

Q106

2S C 1945

DRIVER

AM P

Q108

2S C 2166

RF AMP

Q110

2S C 2088

RF AMP

Q 113,114

2S C 2712

MOD AMP

Q 111 2SA 817

Q 102 2SC 1959

Q 103 2SA 1869

ALC

IC 1 0 1

TA 2011S

PLL

IC 1 0 3

PLL2001S

LPF

VCO

Q 121,124

2SC 2404

D108 HVU17

SHIFT SW

Q126

2S C 2714

LP F

Q 125,127

2S C 2712

TX :26.965 27.405M H z

R X :16.275

16.715M H z

10.24M H z

RF AMP

Q104

2S K 302

IF A M P

Q 111,112

2SC 2404

MIXER

MIXER

Q107

2SC 2408

Q109

2SC 2408

10.69M H z

450kHz

DET

D106

1SS 119

NOISE

BLANKER

D107

1SS 198

AF AMP

Q120

2S C 2714

AM N O ISE

CANCELLER

IC 1 0 2

TA2051FN

AF AMP

IC 1 1 1

N JM 4558M

LP F

SQ DET

Q117

2S C 2712

SQ SW

Q101

DTC123JK

IC 1 0 1

TC4W 66F

AF AMP

IC 1 0 2

N JM 4558M

E VOL

IC 1 0 4

LC 75391M

AF AMP

& LPF

IC 1 0 5

N JM 4558M

CPU

IC 1 0 8

M B 89133AP FM

-G 4 9 9

HPF &

AF AMP

IC 1 0 3

N JM 4558M

AF AMP

IC 1 0 6

N JM 4558M

AUDIO

OUT

MIC

IN

TO

MCU

AUDIO CIRCUIT

4.19M H z