NAD 216 - 214 Power Amplifier Schematic

SCHEMATIC DIAGRAM
214 POWER AMPLIFIER
MUTE,
CLIPPING
Q317, 0329, Q331, Q333, 0335, ond THI01
‘are mounted on the left-hand Moin Heatsink.
0325 ond Q327 ore mounted on small heatsinks.
alien or ur tere tection
MAINS SWITCH
A rs:
10K
R382
0318, Q330, 0332. 0334, 0336, ond TH102 ;
are mounted on the right-hand Moin Heotsink
0326 ond 0328 ore mounted on smoti heotsinks,
1. All resistors ore carbon film types,
0.25 watts, 5% tolerance, unless otherwise specified.
R = ohms MF = metal film resistor
K = kilo ohms FP = flameproof resistor
M = mega olims FUSIBLE = fusible resistor
CERAMIC = ceromic cose resistor
2. All copacitors are in microforads.
n = nanoforads P = picofarads
3. Color abbreviations:
RED = red ORG = orange
BLK = block GRN = green
BRN = brown GRY = gray
T-61233
|
|
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e
O_St
|
Pacer
Canter
g
XC
‘Supply Top
PCB
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, SE AH Versi
|
ia
ersion
aes
PE
ON
EE
ry
eg
pe
ee
ts
twee
face
Sp
RR
SE
os LEFT CHANNEL
POWER AMPLIFIER
bs:
+/-55V REGULATOR MAIN POWER SUPPLY
* A eas A “tere
R205 ‘R201 Input
oS pp Bel incon tw FUSBLE a“
+5
EH
C204 202 :
}4700/63 }4700/63
Center |
Ec
C208 c203 |
4700/63 4700/83
-5y |
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zs
Sn
ae
a
|
Wide thes __ 1 |
onip |
i |
Tr |
im RIGHT CHANNEL
| POWER AMPLIFIER
1402
eee oS tt
T |
i SPEAKER TERMINALS |
Notes:
9
TA7317P
2SA1386
2SC3519
2SA1837
28C4793
Fen
2SA1478
2SB631
28C3423
2SC3788
2SD600K
Fee
284970
2801815
2S8€2240
2S8C2878
om
2SA1370
2S8C3467