Pioneer PDR-W839 Service Manual

72
PDR-W839
[Procedure]
1. Press the AUTO SPACE key and shift to the MPP Offset Readjustment.
(Press the AUTO SPACE key several times to appear the right indication.)
2. Monitor the TE waveform with VC.
Be careful with monitoring TE waveform instead of MPP waveform in the readjustment !
3. Adjust the JOG key so that TE offset becomes zero.
4. Press the ENTER key to register the adjustment.
6.8.8 MPP Offset Readjustment
0 mV ± 50 mV
CN102-pin 5 (Tracking err)
Test Point
Adjustment Value
Optimizing DC offset voltage of tracking-error output circuit.
Playback does not function, incapable of searching, or track skipping.
Purpose
Symptom when Out of Adjustment
Adjustment method
FL Indication
CN102
TE
VC
5
6
10: 1 prove Oscilloscope

Pioneer PDR-W839 Specifications

General

Frequency range	2 - 20000 Hz
Signal-to-Noise Ratio (SNR)	112 dB
Line-in	Yes
I/O ports	Optical Digital Input/Output\\t Coaxial Digital Input/Output\\t Headphone Jack Keyboard Terminal Control Input
Device type	HiFi CD player
Product color	Black
Media types supported	CD/CD-R/CD-RW
Dimensions (WxDxH)	420 x 380 x 128 mm

Weight and Dimensions

Weight	6000 g