HBD-E370/E470/E570/E870/T57
THIS NOTE IS COMMON FOR PRINTED WIRING BOARDS AND SCHEMATIC DIAGRAMS. (In addition to this, the necessary note is printed in each block.)
• Circuit Boards Location
For Printed Wiring Boards.
Note:
•X: Parts extracted from the component side.
•Y: Parts extracted from the conductor side.
•f : Internal component.
•
: 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. |
•MAIN and
•Indication of transistor.
C |
|
Q | These are omitted. |
B E |
|
Q |
|
B C | E |
| These are omitted. |
•Abbreviation
CND : Canadian model
•Lead layouts
surface
Lead layout of conventional IC | CSP (Chip Size Package) |
Note 1: When the MAIN board is replaced, spread the com- pound referring to “NOTE OF REPLACING THE IC3100, IC3200 AND IC3400 ON THE MAIN BOARD AND THE COMPLETE MAIN BOARD” on servicing notes (page 8).
Note 2: When the POWER board is replaced, spread the compound referring to “NOTE OF REPLACING THE D913, D931, IC901 AND IC921 ON THE POWER BOARD AND THE COMPLETE POWER BOARD” on servicing notes (page 9).
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 specified.
•f : internal component.
•2: nonflammable resistor.
•5: fusible resistor.
•C: panel designation.
Note: | Note: |
The components identi- | Les composants identifiés |
fied by mark 0 or dotted | par une marque 0 sont |
line with mark 0 are criti- | critiques pour la sécurité. |
cal for safety. | Ne les remplacer que par |
Replace only with part | une piéce portant le nu- |
number specified. | méro spécifié. |
•A: B+ Line.
•B: B– Line.
•Voltages and waveforms are dc with respect to ground
under
–
*: Impossible to measure
–Other boards –
no mark: TUNER
*: Impossible to measure
•Voltages are taken with VOM (Input impedance 10 MΩ). 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.
F : AUDIO
E : VIDEO
J : DISC PLAY
L : USB
d : LAN
f : TUNER
N : MIC
•Abbreviation
CND : Canadian model
•The voltage and waveform of CSP (chip size package) cannot be measured, becaise its lead layout is different from that of conventional IC.
Note 1: When the MAIN board is replaced, spread the com- pound referring to “NOTE OF REPLACING THE IC3100, IC3200 AND IC3400 ON THE MAIN BOARD AND THE COMPLETE MAIN BOARD” on servicing notes (page 8).
Note 2: When the POWER board is replaced, spread the compound referring to “NOTE OF REPLACING THE D913, D931, IC901 AND IC921 ON THE POWER BOARD AND THE COMPLETE POWER BOARD” on servicing notes (page 9).
CONNECT board
TUNER (FM) (TU1)
AUDIO board | |
|
MAIN board
REG board
KEY board | POWER board |
| |
FL board | |
|
34 34
