|
|
|
| SECTION 4 |
|
|
|
|
|
|
|
|
|
|
|
| DIAGRAMS |
|
|
|
|
|
|
|
|
| |
|
|
|
|
|
|
|
|
|
|
|
| ||
|
|
| PRE AMP |
|
|
|
|
|
|
|
|
| |
|
|
| PRE AMP |
|
| FILTER |
|
|
|
|
|
| |
| IC101 (1/2) |
|
|
|
|
|
|
|
| ||||
| IC102 (1/2) |
|
| OFF | LOW BOOST |
|
|
|
| ||||
L | INPUT |
|
|
| LINE |
|
|
| |||||
|
|
|
|
| IC102 (2/2) |
|
|
| |||||
(BTL) | 6 |
|
|
|
| LPF | SWITCH |
|
|
| |||
| 7 | 3 |
|
|
|
|
| ||||||
|
| 5 |
|
|
|
|
| Q102 |
|
|
| ||
|
|
| 1 |
|
|
|
|
| DRIVE | POWER |
| ||
|
|
|
| 2 |
|
|
| 5 |
| DIFFERENTIAL |
| ||
|
|
|
|
|
|
| 7 | AMP | AMP | AMP |
| ||
| OUTPUT |
|
|
|
|
|
| 6 |
| ||||
L |
|
|
|
|
|
|
| Q103 | Q105 | Q108,Q110,Q112 |
| ||
(THROUGH) |
|
| L.P.F | L.P.F |
|
|
|
| |||||
|
|
|
|
|
|
|
|
|
| ||||
|
| CNJ803 |
|
| IC301 | IC302 (1/2) |
|
| +16.7V |
| RV103 |
|
|
|
|
|
|
|
|
|
|
|
|
| |||
| L |
|
| 3 |
|
|
| (B+) |
| BIAS | OVER CURRENT |
| |
|
|
|
|
|
|
|
|
| |||||
|
|
| 5 | 7 |
|
|
|
|
| ||||
|
|
|
| LEVEL | 1 |
|
|
|
| DET |
| ||
HIGH LEVEL |
|
| 2 |
|
|
|
|
|
| ||||
|
|
|
| BOOST |
|
| Q114 |
| |||||
| INPUT |
|
|
|
|
|
| BIAS |
| ||||
|
|
|
| FILTER | FILTER |
|
| EQUALIZER |
|
| |||
| R |
|
|
|
| Q107 |
|
| |||||
|
|
|
|
| INV. AMP |
| Q101 |
|
|
| |||
|
|
|
|
|
|
| LOW |
| DIFFERENTIAL | DRIVE | POWER |
| |
|
|
|
|
|
| IC302 (2/2) |
| BOOST | AMP | AMP | AMP |
| |
|
|
| PRE AMP |
|
|
|
| (40Hz) | Q104 | Q106 | Q109,Q111,Q113 |
| |
|
|
| PRE AMP |
| 2 |
|
|
|
|
|
| ||
| IC101 (2/2) |
| 1 |
|
|
|
|
|
| ||||
|
| 3 | LOW BOOST |
|
|
|
| ||||||
|
|
| IC202 (1/2) |
|
| LINE |
|
|
| ||||
| OUTPUT |
|
|
|
|
| IC202 (2/2) |
|
|
| |||
| 3 | 1 | 3 |
|
|
| SWITCH |
|
|
| |||
| (THROUGH) |
|
|
|
|
|
|
|
| ||||
| 2 |
|
|
|
|
| Q202 |
|
|
| |||
|
|
| 1 |
|
|
|
|
| DRIVE | POWER |
| ||
|
|
|
| 2 |
|
|
| 5 |
| DIFFERENTIAL |
| ||
| R |
|
|
|
|
| 7 | AMP | AMP | AMP |
| ||
|
|
|
|
|
|
| 6 |
| |||||
|
|
|
|
|
|
|
| Q203 | Q205 | Q208,Q210,Q212 |
| ||
| INPUT |
|
|
|
|
|
|
| |||||
|
|
|
|
| FILTER |
|
|
|
|
|
| ||
|
|
|
|
|
|
|
|
|
|
|
|
| |
|
|
|
|
|
|
| OFF |
| +16.7V |
| RV203 |
|
|
|
|
|
|
|
|
|
|
| (B+) |
|
|
| |
|
|
|
|
|
|
| LPF |
|
| BIAS | OVER CURRENT |
| |
|
|
|
|
|
|
|
|
|
| ||||
|
|
|
|
|
|
|
|
|
|
| DET |
| |
|
|
|
| LEVEL |
|
|
|
|
|
|
|
| |
|
|
|
|
|
|
|
| BOOST |
|
| Q214 |
| |
|
|
|
|
|
|
|
|
|
| BIAS |
| ||
|
|
|
|
|
|
|
|
| EQUALIZER |
|
| ||
|
|
|
|
|
|
|
| Q207 |
|
| |||
|
|
|
|
|
|
|
| Q201 |
|
|
| ||
|
|
|
|
|
|
|
| LOW |
| DIFFERENTIAL | DRIVE | POWER |
|
|
|
|
|
|
|
|
| BOOST |
|
| |||
|
|
|
|
|
|
|
|
| AMP | AMP | AMP |
| |
|
|
|
|
|
|
|
| (40Hz) |
| ||||
|
|
|
|
|
|
|
| Q204 | Q206 | Q209,Q211,Q213 |
| ||
|
|
|
|
|
|
|
|
|
|
|
|
| |
|
|
|
|
|
|
|
|
| LINE SWITCH |
|
|
| |
|
|
|
|
|
|
|
|
|
| CONTROL |
|
|
|
|
|
|
|
|
|
|
|
|
| Q701,702 |
|
|
|
|
|
|
|
|
|
|
|
|
| DC OFFSET |
|
|
|
|
|
|
|
|
|
|
|
|
| DET |
|
|
|
|
|
|
|
|
|
|
|
| Q802,Q803,Q804 |
|
|
| |
|
| CN801 |
|
|
|
|
|
|
|
|
|
|
|
| REM |
| POWER |
|
|
|
|
|
|
| |||
|
| ON/OFF |
|
|
|
| CONVERTER |
|
|
| |||
|
|
|
| Q903 |
| IC901 |
|
|
| TRANSFORMER |
|
|
|
|
|
|
| DC DET |
|
|
|
|
| T901 | RECT | B+REG | +16.7V |
|
|
|
|
| 11 |
|
|
|
| ||||
|
|
|
| IC902 |
|
|
|
|
|
| D911,917 | Q914 | (B+) |
| F902 |
|
| DRIVER | SWITCHING |
|
|
|
| B+ |
| 10 |
|
|
| ||
|
| DRIVER | RECT |
| +54V | |||
+12V | SWITCH |
| 12 | Q910 | Q904,Q905,Q906 |
| ||
| D909 |
| (B+) | |||||
| Q901,Q902 | D850,852 |
|
|
|
|
| D919 |
| F901 |
|
|
|
|
| ||
GND | (POWER) |
|
| SWITCHING |
| RECT | +45V | |
|
|
|
| |||||
|
| D851,853 |
|
| Q912 |
| D905 | (B+) |
|
| (POWER) | REF. |
|
|
|
|
|
|
|
|
|
|
|
|
| |
| PROTECT LATCH |
| REG |
|
|
| RECT | |
|
|
|
| SWITCHING |
| |||
| Q801,Q805,Q806 |
| 14 |
|
| D906 | ||
| D854 |
|
| Q913 |
| D920 | ||
|
|
|
|
| ||||
|
| 8 |
|
|
|
| ||
| PROTECTOR | TEMP.DET |
|
| RECT |
| ||
|
|
|
|
| ||||
|
| Q809 |
| DRIVER | SWITCHING | D910 |
| |
|
| TH801,803,808 | 9 |
|
|
| ||
|
| DRIVER |
|
|
| |||
|
| PTH801 | Q911 |
|
|
| ||
|
|
| Q907,Q908,Q909 | RECT | ||||
|
|
|
|
| ||||
|
|
|
|
|
| |||
|
| D820,822,827,832 |
|
|
| D912,918 | Q915 | |
| D803 |
|
|
|
|
|
| |
|
|
|
|
|
|
|
| |
|
|
| 1 |
|
|
|
|
|
|
|
| 2 |
|
|
|
|
|
+45V |
|
| 15 | • Signal path | |
(B+) |
|
| : AUDIO | ||
|
| ||||
|
| DET | 16 | ||
| IC903,Q920 |
|
| ||
|
|
|
| ||
|
|
|
|
|
|
XM-SD22X
CN804 BTL 1
2 | L |
SPEAKER OUT
CN805
1 BTL
2 |
|
|
|
| R |
11 11
