Akai GX-77 Service Manual page 36

2. COMPOSITION OF VARIOUS P.C BOARDS
1) PRE AMP P.C BOARD T1010A515A (2ED) and VOLUME P.C BOARD T1010A515B
VOLTAGE MEASURED AT STOP MODE
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REC HEAD
mGuT 4-242
ERASE HEAD
€4-248
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L__REC_HEAD
R4~242
RIGHT cP
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ane
ERASE HEAD | egy
4-208 i
TIOIOASISB
SYSCON PCO
RIGHT
2scia44 =. 28€ 2603
2scie43 = 2SANNIS
28c2274K
} 2sa984K
TRI,2, 8 em n ene ee 2sceaaie,r) LOCATION OF TRANSISTOR
TRS,9,11,13, 20 == == 28C1312816,4) TRI £2 Rb - €!
+ TRG, 8,12 == eo oon 2801843 (0, F) ot! TRewa 63 TR2bd 940 c2 5
TRG,7,10,14 171022, TRS 84 | TR5b 82
240927, 30, 33,34 --- 2SC2603(E,F) TR6,7 D2 = TRB», 9b E3
(tine our] pb 7 RD ee eee = e286 C2zPOK LEED -: TR8,9:. €3 -TRIODwI2 =F 3
Tag: = SP PASRAKIES EF) TROWI2 FZ TRI3D,14D G4
~ = 2SAN115(E,F) TRI3,14 6S TRISD,I6b 63
TRIS,16 GI TR33b,34d 9 A2
28006316) TRI7, 16 AS
TRI~w21 CS
TR22 85
TRE €S
R24 F4
TR25,26 FS
TR2T ci
TR28,29 BI
TR3O | cl
TR31,32 Al
TR33,34 0 AG i
\
LEO LEVEL METER
re
ure
PRE AMP PCB
TIOIOASISA
ack
2SCi3I2S —- 2SC106 280863
WARNING: AINDICATES SAFETY CRITICAL COMPONENTS. FOR CONTINUED SAFETY,
REPLACE SAFETY CRITICAL COMPONENTS ONLY WITH MANUFACTURER'S
RECOMMENDED PARTS 4
AVERTISSEMENT: AIL INDIQU LES COMPOSANTS CRITIQUES DE SURETE. POUR
MAINTENIR LE DEGRE DE SECURITE DE L' APPAREIL NE REMPLACER LES
CONPOSANTS LE FONCTIONNEMENT EST CRITIQUE POUR LA SECURITE
QUE PAR DES PIECES RECOMMANDEES PAR LE FABRICANT
36