Samsung RCD-750 - Troudiesnooting Oo

6.Troubleshooting
6-1.
Radio
cassette
section
X
:
NO.
ABNORMAL
6-1-1. AC power insensible
Check AC cord
connection Replace AC cord
6-1-2. Battery power insensible
Check proper
polarity
Install battery properly
Check voltage selector
: Check if AC
setting(OPTION) cord is plugged Unplug from set
in set
Check if RF701 fuse is
open (OPTION
Replace fuse
Replace power
transformer
LED defect
& soldering
Check voltage
of RCW2
Check
secondary voltage of power
transformer
1. Check if battery spring wire is cut.
2. Check battery contacts.
Check if POWER
LED lights (RADIO)
6-1-3.Output insensible
Check if POWER
LED lights
X | Refer to "AC/Battery Power Insensible"
O
Check speaker
wire connection
X Connect speaker wire properly
O
Check if volume
is set to low
< raevonee
O
Check voltage at X Replace RQ801or RZD1
emitter of RO80 i ei
oO
X Replace IC
Check volta
of power IC(Al
pins
(601)
O
Check output
of headphone
Xx
Check output at ws Check signals (patterns)
AR604, AR654 from volume input to AIC601
O
Check soldering of speaker
output port
RCD-750 - 26-