Sony HCD-GTR33 Service Manual page 19

THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS.
(In addition to this, the necessary note is printed in each block.)
For Printed Wiring Boards.
Note:
• X : Parts extracted from the component side.
• Y : Parts extracted from the conductor side.
• : Internal component.
f
• : Pattern from the side which enables seeing.
(The other layers' patterns are not indicated.)
Caution:
Pattern face side: Parts on the pattern face side seen
(Conductor Side) from the pattern face are indicated.
Parts face side: Parts on the parts face side seen from
(Component Side) the parts face are indicated.
Caution:
Pattern face side: Parts on the pattern face side seen
(SIDE B) from the pattern face are indicated.
Parts face side: Parts on the parts face side seen from
(SIDE A) the parts face are indicated.
• DMB19 board is multi-layer printed board.
However, the patterns of intermediate layers have not
been included in diagrams.
• Indication of transistor.
C
Q
These are omitted.
B E
B C E
These are omitted.
• Abbreviation
AR : Argentina model
E2 : 120V AC area in E model
E4 : African model
E51 : Chilean and Peruvian models
MX : Mexican model
HCD-GTR33/GTR55/GTR77
For Schematic Diagrams.
Note:
• All capacitors are in μF unless otherwise noted. (p: pF) 50
WV or less are not indicated except for electrolytics and
tantalums.
• All resistors are in Ω and 1/4 W or less unless otherwise
specifi ed.
• : Internal component.
f
• 2 : Nonfl ammable resistor.
• 5 : Fusible resistor.
• C : Panel designation.
Note: The components identifi ed by mark 0 or dotted
line with mark 0 are critical for safety.
Replace only with part number specifi ed.
• A : B+ Line.
• B : B– Line.
• Voltages and waveforms are dc with respect to ground
under no-signal (detuned) conditions.
- TC Board -
no mark : TAPE PLAY
( ) : TAPE REC
- Other Boards -
no mark : TUNER (FM/AM)
( ) : CD PLAY
<< >> : TAPE PLAY
[ ] : TAPE REC
< > : USB
{ } : PC
* : Impossible to measure
• Voltages are taken with VOM (Input impedance 10 M).
Voltage variations may be noted due to normal production
tolerances.
• Waveforms are taken with a oscilloscope.
Voltage variations may be noted due to normal production
tolerances.
• Circled numbers refer to waveforms.
• Signal path.
: AUDIO
F
: TUNER (FM/AM)
f
: TAPE PLAY
d
: TAPE REC
G
: MIC
N
: CD PLAY
J
: DIGITAL
c
: USB
E
• Abbreviation
AR : Argentina model
E2 : 120V AC area in E model
E4 : African model
E51 : Chilean and Peruvian models
MX : Mexican model
• Circuit Boards Location
TC board
(For African Model only)
TRANS board
MOTOR DRIVE board
included in METER DISPLAY ASSY
(GTR55/GTR77)
LED (GVX) board
included in METER DISPLAY ASSY
(GTR55/GTR77)
included in DISPLAY PANEL (GVX1) ASSY
(GTR33)
SW (GVX) board
included in METER DISPLAY ASSY
(GTR55/GTR77)
VOL board
USB board
19 19
HCD-GTR33/GTR55/GTR77
DMB19 board
HUB board
TUNER (FM/AM)
DISPLAY board
MIC board
MAIN board
POWER board