Kenwood DDX 7029 Y HU Service Manual

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DDX7019/7029/7029Y/7039
DNX7100/7200

O The I0106 in the DIGITAL [/0 UNIT (X88-2020-12) is not a replaceable component.
In case of defective of this IC, replace the entire unit (X88-2020-12).

O The I05, IC21, and IC60 in the DVD unit (X37-1120-03) are not replaceable components.
In case of defective of any of these le, replace the DVD mechanism assembly. (The ICS has a device key, which shall be
made consistent with the S/No. of the mechanism assembly after replacement. Thus you cannot replace only the board.)

0 MICROCOMPUTERS TERMINAL DESCRIPTION, TEST MODE, ADJUSTMENT are the same as KVT-719DVD.
Please refer to the service manual (KVT-719DVD: 353-0507-00).

GEAR POSITION IN A DVD MECHANISM

In assembling the Traverse UD arm, Drive cam assembly, Traver/se UD arm
Drive gear 5 and Drive gear 40, align register marks on 7
these components.

Inscriptions
(register marks)
on gears

Align 6 marks
as shown in the
figure

1
Drive gear 5 Drive gear 40
Do not lorcibly press gears to engage their teeth

but freely let the gears fall under their own weight
and engage their teeth.

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DDX7019/7029/7029Y/7039
DNX7100/7200

COMPONENTS DESCRIPTION

Ref. No. Application I Function Operation I Condition I Compatibility
0302 General Purpose Transistor OSD ROUT Current Amplifier
0303 General Purpose Transistor OSD GOUT Current Amplifier
0304 General Purpose Transistor OSD BOUT Current Amplifier
0 DVD UNIT (X37-1120-03)
Ref. No. Application I Function Operation I Condition I Compatibility
IC1 One chip LSI for DVD player RF signal processing I Servo processing I Decoding processing I AV decoding processing
IC5 FLASH ROM To retain FIW for one chip LSI (Nonvolatile memory)
ICQ EEP ROM To retain data for one chip LSI (Nonvolatile memory)
IC10 Driver IC Fo coil ITr coil I SP motor I SLD motor/ LOAEJ motor drive
IC12 1ch video AMP +6dB amplifier with internal composite video output filter
IC15 Audio DAC DA converter for 2ch analogue audio output
|C21 2»output switching REG 5V a 3.3VI1.2V
IC39 OPAAMP for lop measurement For lop measurement
IC42 Logic IC for port extension For port extension
|C49 Low voltage logic For S/PDIF signal amplitude conversion (3.3V a 1.2V)
IC50 OPAAMP for audio LPF LPF for 2ch analogue audio output (Flch)
IC51 OPAAMP for audio LPF LPF for sch analogue audio output (Lch)
IC54 SDRAM To retain data for one chip LSI (Nonvolatile memory)
IC55456 Logic IC for port extension For port extension
IC57 Sch video amplifier With builtein filter +6dB amplifier for component/RG8 video output
IC60 Power supply for 5.0V 8V a 5V (Exclusively for audio DAC)
Q1 Transistor with internal resistor LOiMUTE control
02 Transistor with internal resistor For FG signal
03 Transistor with internal resistor For BMS
Q4 Transistor with internal resistor DRMUTE control
010 Front end transistor for APC Control of CD laser diode emission
011 Front end transistor for APC Control of DVD laser diode emission
Q12 Rear end transistor for APC Control of CD laser diode emission
013 Rear end transistor for APC Control of DVD laser diode emission
014 MOSVFET ONIOFF control of CD laser diode
015 MOS-FET ONIOFF control of DVD laser diode
020 MOS-FET for level shifter Level shifter for |2C clock
021 MOS-FET for level shifter Level shifter for |2C data
024 MOS-FET For lop measurement
025 Transistor with internal resistor IFSEL control
027 Transistor with internal resistor HFM ONIOFF control
028 Transistor for APC For CD laser diode protection (Current limiter)
029 Transistor for APC For DVD laser diode protection (Current limiter)