Text preview for : DEH-M6067_DEH-M6106.rar part of Pioneer DEH-M6067 DEH-M6106 Pioneer Car Audio DEH-M6067_DEH-M6106.rar
Back to : DEH-M6067_DEH-M6106.rar | Home
ORDER NO.
CRT2423
CD MECHANISM MODULE
CX-958
- This service manual describes the operation of the CD mechanism incorporated in models listed in the
table below.
- When performing repairs use this manual together with the specific manual for model under repair.
Model No. Order No. CD Mechanism Module Mechanism Unit
DEH-P410/X1N/UC CRT2414 CXK5201 CXB4800
DEH-P4100/X1N/UC
DEH-P310/X1N/UC
DEH-P41/X1N/UC CRT2415 CXK5201 CXB4800
DEH-P3100/X1N/UC
DEH-P4150/X1N/ES CRT2416 CXK5201 CXB4800
DEH-P3150/X1N/ES
DEH-P4100R/X1N/EW CRT2417 CXK5201 CXB4800
DEH-3110/X1N/EE
DEH-3130R/X1N/EW CRT2418 CXK5201 CXB4800
DEH-3100R-B/X1N/EW
DEH-3100R/X1N/EW
CONTENTS
1. CIRCUIT DESCRIPTIONS ...........................................2
2. MECHANISM DESCRIPTIONS.................................17
3. DISASSEMBLY .........................................................18
PIONEER CORPORATION 4-1, Meguro 1-Chome, Meguro-ku, Tokyo 153-8654, Japan
PIONEER ELECTRONICS SERVICE INC. P.O.Box 1760, Long Beach, CA 90801-1760 U.S.A.
PIONEER ELECTRONIC [EUROPE] N.V. Haven 1087 Keetberglaan 1, 9120 Melsele, Belgium
PIONEER ELECTRONICS ASIACENTRE PTE.LTD. 253 Alexandra Road, #04-01, Singapore 159936
C PIONEER CORPORATION 1999 K-ZZA. OCT. 1999 Printed in Japan
CX-958
1. CIRCUIT DESCRIPTIONS
The LSI (UPD63711GC) used on this unit comprises six main blocks ; the pre-amp section, servo, signal processor,
DAC, CD text decoder (not used on this model) and LPF. It also equips with nine automatic adjustment functions.
1.1 PRE-AMP SECTION
This section processes the pickup output signals to EFM 71
create the signals for the servo, demodulator and ASY 72
control.
The pickup output signals are I-V converted by the pre-
RFI 74
amp with the built-in photo-detector in the pickup, then Vref
EFM
added by the RF amp to obtain RF, FE, TE, TE zero cross
AGCO 75
and other signals. PEAK DET.
MIRR
AGCI 76 To the
This pre-amp section is built in the servo LSI Vref BOTTOM DET. following stage
RFO 77 DEFECT of the LSI
UPD63711GC (IC201). The following describes function
EQ2 78 S/H LPF A3T
of each section.
EQ1 79 Vref 73 C-3T
Vref
Since this system has a single power supply (+5V), the Vref
FOK
RF- 80
reference voltage for this LSI and pickup are set to Vref
91 FEO
Vref
REFO (2.5V). The REFO is obtained by passing the Vref 90 FE-
A 82
A/D
REFOUT from the LSI through the buffer amplifier. The C 83
Vref
D/A
REFO is output from Pin 89 of this LSI. All B 84
measurements are done using this REFO as reference. D 85 Vref
93 TEO
Vref
Note : During the measurement, do not try to short the 92 TE-
F 86 Vref
A/D
REFO and GND. Vref 94 TE2
D/A
E 87 Vref
Vref
98 LD
PD 97
VREG
GND
APN
LDON
1) APC Circuit (Automatic Power Control) PN 99
When the laser diode is driven with constant current,