Parts/Service for DVD-1500

Name: Parts/Service for DVD-1500
Brand: SANYO
Availability: InStock

Brand: SANYO

Category: Video

Document Type: Parts/Service

Language: EN

Uploaded: Nov. 21, 2025, 6:12 p.m.

Basic Operation Summary

This section outlines key operational aspects of the DVD Player:

Disk Identification: Upon power on or disk insertion, the unit performs a disk identification process to determine if it's a CD, one-layer DVD, or two-layer DVD.
Laser Operation: The LASER lamp is activated, the pickup moves, and the lens is lowered for focus search.
Servo Alignment: Automatic servo alignment procedures are performed, including tracking balance, focus balance, focus gain, tracking gain, and RF gain adjustments.
Playback: The player proceeds to play the disk, optimizing settings as needed for CD or DVD formats.
Tray Operation: The tray mechanism handles opening and closing for disk insertion and removal.

Problem/symptom	Check	Waveform	Schematic diagram	Reference data
Power on
1 Cannot be energised	CN803 (PH5P) Check for a voltage of 5 V/9 V. Check for the HRST.	(17)(19)	K	BA6849 voltage table (4)
2 SPINDLE motor runs away.	Turn off power at once. Check SPINDLE/SLED servo system. Check for FLOW signal. Check and trace control signals.	(44)(45) (46)	A, B A, B
3 SLED motor runs away.	Turn off power at once. Check SPINDLE/SLED servo system. Check for FLOW signal. Check and trace control signals.	(47)(48)	I	BA5931 voltage table (5)
Tray open/close
1 Neither opens nor closes	Check for motor drive input/output. Check mechanical switch & its output. Check for HRST & FRST.	(1) (16) (18)(19)	J	BA5931 voltage table (6)
2 Opens but immediately closes.	Check for motor drive input/output. Check mechanical switch & its output.	(1) (16)	J	BA5931 voltage table (6)
3 Opens but motor does not stop	Check for motor drive input/output. Check mechanical switch & its output.	(1) (16)	J	BA5931 voltage table (6)
4 Loading speed abnormal	Check for motor drive input/output.	(1)	J	BA5931 voltage table (3)