Sony PCM-1630 - Service Information; Repacking Procedure; Rack Mounting Procedure; Case Removal Steps

2.
SERVICE INFORMATION
2-1. Repacking . . . . . . . . . . . . . . . . . . . . . . . . 2-1
2-2. Rack Mounting .................... 2-2
2-3. Case Removal . . . . . . . . . . . . . . . . . . . . . 2-3
2-4. Heat Sink Assy Removal . . . . . . . . . . . . . . 2-4
2-5. Caution for
PS-81 Board and
Fuse Replacement . . . . . . . . . . . . . . . . 2-5
3. ELECTRICAL ADJUSTMENTS
3-1. Equipments Required ................ 3-1
3-2. +5 V·±22 V Voltage Adjustment
(PS-81 Board) . . . . . . . . . . . . . . . . . . . 3-1
3-3. AD Conversion Level Adjustment
(AD-23 Board) . . . . . . . . . . . . . . . . . . . 3-2
3-4.
DA Conversion and Analog Output Adjust-
ments (DA-15 Board) . . . . . . . . . . . . . . 3-4
3-4-1. Oscillator
Frequency Adjustment . . . . . 3-4
3-4-2. Level
Adjustment ................ 3-5
3-4-3.
Output Offset Adjustment .......... 3-6
3-5. Composite Digital
Output and
Clock
Adjustments (SIF-1 Board) ...... 3-7
3-5-1. Composite Digital
Output Level
Adjustment .................. 3-8
3-5-2. Composite Sync
Phase Adjustment .... 3-8
3-5-3. Master Clock
Duty Adjustment . . . . . . . 3-8
3-5-4. External
Synchronization Adjustment .. 3-8
3-6. Sync and Data
Extraction Level Adjustment
(DEC-15 Board) .................. 3-9
-2-
A.
B.
c.
D.
SEMICONDUCTOR PIN ASSIGNMENTS
Diode ............................ A-1
Transistor ......................... A-1
IC .............................. A-2
BLOCK DIAGRAMS AND
CIRCUIT DESCRIPTION
AD-23 Board ...................... B-3
DA-15 Board ...................... B-7
ENC-2 Board ...................... B-12
SIF-1 Board
....................... B-16
DEC-15 Board
..................... B-18
MT-16 Board
...................... B-21
SCHEMATIC AND CIRCUIT BOARD
DIAGRAMS
AD-23 Board ...................... C-3
DA-15 Board
...................... C-7
ENC-2 Board
...................... C-13
SIF-1 Board
....................... C-21
DEC-15 Board
..................... C-25
MT-16 Board
...................... C-31
DSP-3, PS-81 and FU-32 Board .......... C-36
MB-11 Board
...................... C-43
Frame Wiring
...................... C-53
REPLACEABLE PARTS
D-1. Exploded Views and Parts List .......... D-1
D-2. Electrical Parts List .................. D-9
D-3. Accessories Supplied
................. D-30
E. PARTS CHANGE INFORMATION