Block Diagram; Main Section - Clarion PP-2898H-C Service Manual

ADJUSTMENT
Item Procedure
1. Connect the Choronometer to TP218.
Clock accuracy
2. Connect the B/U and ACC line, and Turn on the ACC switch.
3. LCD display change Ver.---, While holding the buttons of MENU,M1,M5 and
POWER.
4. Adjust TC201 so that an output of TP218 becomes 0.0 +0.2/-0.0Sec./day.
1. Input the 98.1MHz/55dBu(1kHz 22.5kHz Div.) SSG signal.
FM noise
2. Set the output to 0dBm(1V)by main volume.
convergence
3. Adjust VR102 so that the output level is -18+3/-3dB down when the output of
SSG is set to -20dBu.
1. Connect the SSG to Main antenna (Red) side.
2. Set the minimum VR101.
3. Input the 98.1MHz/1kHz 22.5kHz(30%) Div. SSG signal.
FM DIV.
4. Input the 26dBu SSG signal and adjust VR101 so that an output of TP101(DIV-
ADJ) becomes High from Low.
5. Confirm that TP101(DIV-ADJ) becomes Low from High within about three sec-
onds of input the 22dBu SSG signal.
6. Confirm that TP101(DIV-ADJ) becomes 10.0V from 2.0V within about one sec-
ond of input the 30dBu SSG signal.
7. Confirm that TP101(DIV-ADJ) is as follows 1.0V within five seconds of input the
20dBu SSG signal.

BLOCK DIAGRAM

Main section

AM/FM-TUNER
ANT101
FM-DIVER
PP-2898H-C,F
IC402
POWER-IC
TDA7560
IC501 - 505
EQ-AMP
NJM2060V
IC301
E-VOL
LC75412
IC103
AM-NC
AF-OUT
BL101
IC102
AF-AMP
N-IN
IC101
J401(POWER/SP)
FILLTER
Q415
Q410
ACC-DET
CD-8V
Q408
CD-5V
1CD
MECHANISM
- 4 -
Measuring instrument
Choronometer
SSG
Milli-volt meter
SSG
Milli-volt meter
Oscilloscope
ILL
CONT.
Q414,416
CD-EJECT
IC201
VR601
AUDIO-CPU
MAIN VOL.
LC723663
S601 - 614
MATRICS
IC601
LCD-DRIVER
LC75853
LCD601
SW PWB
ILL
S615
KEY-
DISP