1-11-2
H3P_SC
LIST OF CAUTION, NOTES, AND SYMBOLS USED IN THE SCHEMATIC DIAGRAMS ON
THE FOLLOWING PAGES:
1. CAUTION:
FOR CONTINUED PROTECTION AGAINST FIRE HAZARD, REPLACE ONLY WITH THE SAME TYPE FUSE.
2. CAUTION:
Fixed Voltage (or Auto voltage selectable) power supply circuit is used in this unit.
If Main Fuse (F2001) is blown, first check to see that all components in the power supply circuit are not
defective before you connect the AC plug to the AC power supply. Otherwise it may cause some components
in the power supply circuit to fail.
3. Note:
1. Do not use the part number shown on the drawings for ordering. The correct part number is shown in the
parts list, and may be slightly different or amended since the drawings were prepared.
2. To maintain original function and reliability of repaired units, use only original replacement parts which are
listed with their part numbers in the parts list section of the service manual.
4. Voltage indications for PLAY and REC modes on the schematics are as shown below:
5. How to read converged lines
6. Test Point Information
2
3
1
5.0
(2.5)
PLAY mode
STOP mode
5.0
The same voltage for
both PLAY & STOP modes Indicates that the voltage
is not consistent here.
Unit: Volts
3
2
1
A
B
C
D
1-B1
1-D3
AREA D3
AREA B1
1-D3
Distinction
Area
Line Number
(1 to 3 digits)
Examples:
1. "1-D3" means that line number "1" goes to the line number
"1" of the area "D3".
2. "1-B1" means that line number "1" goes to the line number
"1" of the area "B1".
: Indicates a test point with a jumper wire across a hole in the PCB.
: Used to indicate a test point with a component lead on foil side.
: Used to indicate a test point with no test pin.
: Used to indicate a test point with a test pin.
Summary of Contents for HD-A2685
Page 1: ...SERVICE MANUAL HDD DVD RECORDER HD A2685 HD A2885 HD B2785 HD D2885 ...
Page 29: ...1 11 6 E2B25SCAV4 AV 4 5 Schematic Diagram ...
Page 30: ...1 11 7 E2B25SCAV5 AV 5 5 Schematic Diagram ...
Page 38: ...1 11 15 AV CBA Top View BE2B20F01042A ...
Page 64: ...HD A2685 HD A2885 HD B2785 HD D2885 E2B25 26ED 28BD 29ED 2006 11 21 ...
